JUSTAGT is now DONE with the "Ghetto Tune" - Northern California Ford Owners

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Posted by Yellow94GT (Member # 431) on :

Yesterday I took the car down to JeffS to let him take a swing at tuning my, to this point, untunable car, with his SCT programing.

When it was all said and done the car had put down 435 RWHP and 405 RWTQ, CORRECTED! The uncorrected numbers, which some other stroker guys around here like to post [Wink]

where 445 RWHP and 417 RWTQ! [Eek!]

Needless to say I'm pretty happy with the results from the dyno. I only have a few more tricks up my sleave, so we'll see if that corrected number doesn't come up over 440 RWHP on the next go around.

The car does still have its cutting out problem above 6500 RPMs where it proceeds to fall right on its face. Peak HP was at 6400 so I can't very well rev past that going down the track. [Roll Eyes]

I REALLY need to find out what this problem is!

Regardless of how well the car did on the rollers, the thing I'm most pleased with is that my car is now VERY driver friendly. No more bucking below 2000 RPM's like with the PMS, no more check engine light from the EGR not being turned off, cooling fans come on when I want, etc etc.

JeffS put a lot of time into tuning drivability, not just WOT power, into this large cammed N/A street car and the results are outstanding [worship]

[ December 12, 2004, 09:02 AM: Message edited by: Yellow94GT ]

Posted by TRIXSNK (Member # 2844) on :

Glad to hear Drew! [Big Grin]

Posted by AaronC (Member # 86) on :

[Eek!]

Posted by 03SVTPower (Member # 518) on :

now go pull a 127mph trap speed! Gald to see everything working out [patriot]

Posted by JohnB (Member # 969) on :

Nice numbers Drew! Glad to hear the tuning issues are worked out. [patriot]

Posted by BlackNGold (Member # 655) on :

That's sick!....

You have one bad GT... [Big Grin]

Posted by BlackDrop50 (Member # 1715) on :

Very nice numbers! I need a tune too...

Posted by mustanggt5091 (Member # 444) on :

Nice Numbers Drew!!!!! [Whoo Whooooo!]

Now lets see you put some slicks on and run a 10 sec N/A pass at over 125mph [Big Grin]

Posted by KCmustangboy (Member # 1927) on :

Congrats drew I look forward to seeing you run it soon. Btw I left the spacer at your house didn't I? lol

Posted by Yellow94GT (Member # 431) on :

Thanks everybody. Its going to take a long time for next Saturday to get here if you know what I mean...lol

And KC, you did leave the spacer. I'll bring it on the 8th if I don't see you before then.

Posted by 99gt-UJSTLST (Member # 584) on :

so did you do a pull before the tune?

Posted by 4.6 EATIN GM'S (Member # 1633) on :

nice #'s [worship]

Posted by 66 AC COBRA (Member # 904) on :

come on 440rwhp, thats [BS flag]

thers gotta be a cheater system on it [Mad]

amazing numbers drew, what does the car way, and wanna post cam specs, please [Big Grin]

Posted by 98slowhoe 'FIFTYLX' (Member # 895) on :

quote:
Originally posted by 66 AC COBRA:
come on 440rwhp, thats

thers gotta be a cheater system on it

amazing numbers drew, what does the car way, and wanna post cam specs, please

yeah he was spraying on the rollers!!!!! [Wink]

I think your car wants to be rolling on some sticky tires!

Posted by Yellow94GT (Member # 431) on :

quote:
Originally posted by 66 AC COBRA:
come on 440rwhp, thats

thers gotta be a cheater system on it

amazing numbers drew, what does the car way, and wanna post cam specs, please

With me sitting in the car and almost no fuel it weighs 3275, (Sac scale).

Posted by Yellow94GT (Member # 431) on :

dp

[ December 12, 2004, 04:50 PM: Message edited by: Yellow94GT ]

Posted by 66 AC COBRA (Member # 904) on :

do i remember that it has a tubular k member, or is that a different yellow sn95 [Embarrassed]

still not to bad on weight for the bodystyle

and your a feather weight [Big Grin]

[ December 12, 2004, 05:43 PM: Message edited by: 66 AC COBRA ]

Posted by Yellow94GT (Member # 431) on :

quote:
Originally posted by 66 AC COBRA:
do i remember that it has a tubular k member, or is that a different yellow sn95

still not to bad on weight for the bodystyle

and your a feather weight

Yeah it has a Griggs front end on it with QA1 coil overs. I'm going on a diet in an attempt at getting into the 10's [Wink]

Posted by KCmustangboy (Member # 1927) on :

quote:
Originally posted by Yellow94GT:

quote:
Originally posted by 66 AC COBRA:
do i remember that it has a tubular k member, or is that a different yellow sn95

still not to bad on weight for the bodystyle

and your a feather weight
Yeah it has a Griggs front end on it with QA1 coil overs. I'm going on a diet in an attempt at getting into the 10's

Dude if you lose any wieght your going to be smaller then your girlfriend. why not just let her drive now and skip the diet lol.

Posted by Yellow94GT (Member # 431) on :

quote:
Originally posted by KCmustangboy:

quote:
Originally posted by Yellow94GT:

quote:
Originally posted by 66 AC COBRA:
do i remember that it has a tubular k member, or is that a different yellow sn95

still not to bad on weight for the bodystyle

and your a feather weight
Yeah it has a Griggs front end on it with QA1 coil overs. I'm going on a diet in an attempt at getting into the 10's
Dude if you lose any wieght your going to be smaller then your girlfriend. why not just let her drive now and skip the diet lol.

She is sacred of the car [Big Grin]

Posted by 2stangs69-91 (Member # 1951) on :

awsome #'s right on. [worship]

pretty high of a rpm peak hp wise especialy for a chassi dyno. I know you guys will yell at me but roll that cam forward 4 or so degrees and put more HP and torque into the RPM you want to use it at. If you don't belive me do it and re-dyno you will see. Unless you just want to rev it.

Posted by 93PONY (Member # 60) on :

quote:
Originally posted by 2stangs69-91:
awsome #'s right on. pretty high of a rpm peak hp wise especialy for a chassi dyno. I know you guys will yell at me but roll that cam forward 4 or so degrees and put more HP and torque into the RPM you want to use it at. If you don't belive me do it and re-dyno you will see. Unless you just want to rev it.

Some people never learn.

Posted by 1SLOWLX (Member # 558) on :

If you don't mind me asking how much was the total tune cost???

Posted by onesicklx (Member # 285) on :

pm jeffrey...aka jeffs

Posted by 2stangs69-91 (Member # 1951) on :

gaurentee the results just try it. Some people think they are so good they refuse to learn (93pony) LOL with as fast as my cars run for what they have, and as much as I win do you think I am just lucky? Good luck on getting your miss fixed Drew. I am guessing some type of valve float or spark blow out problem.

[ December 13, 2004, 01:10 PM: Message edited by: 2stangs69-91 ]

Posted by Yellow94GT (Member # 431) on :

quote:
Originally posted by 2stangs69-91:
gaurentee the results just try it. Some people think they are so good they refuse to learn (93pony) LOL with as fast as my cars run for what they have, and as much as I win do you think I am just lucky? Good luck on getting your miss fixed Drew. I am guessing some type of valve float or spark blow out problem.

I just upgraded to some 1.72 rockers and when I did so upgraded the valve springs. People have been shouting valve float since this all started, but the problem persists as it always has, no change. If you were to go for a ride in the car you would be able to feel and hear that its not the problem.

Whats up with those Autolite plugs you suggested in a thread a while back?

Posted by Glenn (Member # 520) on :

damn, nice numbers drew. wish I was still back there, I would also have Jeff Tune my 95.

Posted by Yellow94GT (Member # 431) on :

Also on the dyno graph you could see a weird drop in power at about 6000 rpm's and then it comes back up until 6400 where from there it goes strait down the crapper. A/F stays steady when the power drops, so it is something spark related also.

Posted by 66 AC COBRA (Member # 904) on :

what distributor do you have in there, have you tried a different one, Im sure you have but just checking

Posted by Yellow94GT (Member # 431) on :

quote:
Originally posted by 66 AC COBRA:
what distributor do you have in there, have you tried a different one, Im sure you have but just checking

Actually I have tried 4 different distributers...lol

2 MSD and 2 stock (one of the stock ones being brand new)

[ December 13, 2004, 01:41 PM: Message edited by: Yellow94GT ]

Posted by AaronC (Member # 86) on :

quote:
Originally posted by 2stangs69-91:
gaurentee the results just try it. Some people think they are so good they refuse to learn (93pony) LOL with as fast as my cars run for what they have, and as much as I win do you think I am just lucky? Good luck on getting your miss fixed Drew. I am guessing some type of valve float or spark blow out problem.

This is the same cam Mike Camara ran and it was designed to be run on the centerline it's installed on. Maybe you should tell Brian at HiTech he doesn't know what he's doin [Confused]

Bottom line is he's helped design the most powerful NA Fords in northern cali and piece for piece I'll put any of his setups against anyone's across the country. Also funny how all the strongest NA motors around here have cams that aren't advanced... [Razz]

You do have a strong runnin car, how bout you try to roll the cam back to straight up and see if you gain power [Razz]

I Doubt you'll try it, but good luck none the less. [burnout]

Just for curiosity sake what is advancing it gonna do for him, and how is it gonna make more power? I just wanna know the theory behind your recommendations [patriot]

Posted by 2stangs69-91 (Member # 1951) on :

I went to the autolite AR racing plugs. I use them in my 69 and in my 91. Underboost I was blowing out the spark on the iridium NGK plugs I had. I actualy think they were to hot of a heat range. Anyhow I always go at least 1 step colder than stock on race days and realy am happy with the autolite race plugs. They have cut back electrodes and different metal in them higher nickle content I believe. I used them in my 69 with NOS and never had a missfire. I was to stupid not to go with them from the beginning on my 91 LOL

Posted by JohnB (Member # 969) on :

Drew- are you running an MSD ignition or stock setup? Also, what plugs and gap?

As far as the cam goes, I'd leave it alone. It obviously is designed/being used for it's intended purpose, why advance it? [Confused]

Edit: the Autolite race plugs have a thicker shell and cut-back electrode. That's it. The only bonus they give is stability around the core (boosted/no2 cars tend to crack the ceramic portion of the core). Are you running 3910's?

[ December 13, 2004, 02:23 PM: Message edited by: JohnB ]

Posted by 2stangs69-91 (Member # 1951) on :

just a sugestion boy's. Belive it or not I always try different cam timming on motors when I am trying to acomplish something. The only reason it sugested it was if he wanted to bring to RPM ranage down little so he wouldn't rev it so much. The difference is small anyhow few hundred RPM a little HP and more TQ. HP isn't a problem with my 331 traction is I ran 11.1 spinning until after 3rd gear shift. If I ever get the car to hook hard and feel I need a little more out of it up top I won't hesitate to try it out. Drews car runs awsome and I seriously doubt moving his cam either direction would make more than a slight difference anyhow. I have never delst with brian from high tech. I have seen a few FTI cams and for heaver cars he recomends advanced cam timming and lighter it is straight up. This is him not me. Wht do you think that is? I am not nearly as knoledgeable as ED Curtis but if he grinds and recomends this on his cams .... Look I am just throwing some Ideas up that I know work to try and help Drew. Not everything you try works OK and there is not Just one theroy on cams out there Does anybody here have any Dyno results on cam timming changing only? BTW that is not the only advantage to the AR plugs but if a plug gives me two advantages to running it I will do it every time [Wink]

[ December 13, 2004, 02:46 PM: Message edited by: 2stangs69-91 ]

Posted by JohnB (Member # 969) on :

You're right, they are suggestions. Again, he needs to get the rev problem corrected before moving on to engine changes that could possibly make his problem worse. [Wink]

And if your car is spinning through 3rd, get some different tires! [Razz]

Edit: lemme guess, running the AR plugs give you that warm fuzzy because they say "race" on them? Worth an extra 5hp or something? LOL

[ December 13, 2004, 02:52 PM: Message edited by: JohnB ]

Posted by 2stangs69-91 (Member # 1951) on :

Sub frame connectors,rollbar, and MT drag radials are next in line on my car. That should help it hook. I didn't want to try and hook it to hard with out subframe connectors. Beside I have my mud and snows on it now(drive to work rain or shine) anyhow off topic here sorry Drew

Posted by 2stangs69-91 (Member # 1951) on :

AR plugs give me the warm fuzzy feeling because that IS the only thing I changed to when I was blowing out spark. With that I gained 5 tenths and 9 MPH. back to back times at the track. My car with no missfire gives me a warm fuzzy feeling all the time OK

[ December 13, 2004, 02:58 PM: Message edited by: 2stangs69-91 ]

Posted by AaronC (Member # 86) on :

quote:
Originally posted by 2stangs69-91:
just a sugestion boy's. Belive it or not I always try different cam timming on motors when I am trying to acomplish something. The only reason it sugested it was if he wanted to bring to RPM ranage down little so he wouldn't rev it so much. The difference is small anyhow few hundred RPM a little HP and more TQ. HP isn't a problem with my 331 traction is I ran 11.1 spinning until after 3rd gear shift. If I ever get the car to hook hard and feel I need a little more out of it up top I won't hesitate to try it out. Drews car runs awsome and I seriously doubt moving his cam either direction would make more than a slight difference anyhow. I have never delst with brian from high tech. I have seen a few FTI cams and for heaver cars he recomends advanced cam timming and lighter it is straight up. This is him not me. Wht do you think that is? I am not nearly as knoledgeable as ED Curtis but if he grinds and recomends this on his cams .... Look I am just throwing some Ideas up that I know work to try and help Drew. Not everything you try works OK and there is not Just one theroy on cams out there Does anybody here have any Dyno results on cam timming changing only? BTW that is not the only advantage to the AR plugs but if a plug gives me two advantages to running it I will do it every time

That's cool with the suggestions. Just wondering what your theory is on doing it. You did say you guarantee more HP and TQ by advancing it so I just wondered why. Ed knows his stuff. But if you look around at all the vendors and custom guys you'll quickly see who's good at what. Ed is a valve train genius but I believe others do better cams. Ed says brian's stuff is all wrong. IMO, if results disagree with theory, then find a new theory! Brian's cams always spec out smaller than Ed's yet make the same or more HP and torque. So if Brian's cams are smaller then I'd have to say his valve timing events are more precise of what the motor really wants. I've done a tail of the tape comparisons of several of his setups to the HiTech one's to come to an unbiased conclusion. I see Ed's different centerlines on his cam cards but it sounds to me like the setup just needs to be geared right. Heavy car, more gear, lighter car, less gear. I know for a fact that all the hitech cams being retarded or straight up hasn't resulted in a loss of torque. Dyno graphs don't lie and neither does the track. Drew's setup was made to rev. It isn't easy to make nearly 100 RWHP more than your cubic" displacement without rev's. Drew's RPM potential is from the bigger heads, and victor manifold which is designed to rev. IMO it still made tremendous torque for a setup that's supposed to "give some up" down low.

Posted by 66 AC COBRA (Member # 904) on :

quote:
Originally posted by Yellow94GT:

quote:
Originally posted by 66 AC COBRA:
what distributor do you have in there, have you tried a different one, Im sure you have but just checking
Actually I have tried 4 different distributers...lol

2 MSD and 2 stock (one of the stock ones being brand new)

we i guess its not that [Big Grin]

tried a new computer

Posted by JohnB (Member # 969) on :

quote:
AR plugs give me the warm fuzzy feeling because that IS the only thing I changed to when I was blowing out spark. With that I gained 5 tenths and 9 MPH. back to back times at the track. My car with no missfire gives me a warm fuzzy feeling all the time OK

I hear that. Same here. Went to a recessed tip plug (old chrysler plug) and picked up 8 mph.

Drew- what heads and plug combo are you running?

Posted by 93PONY (Member # 60) on :

Thanks for taking care of my 'light work' Aaron. [Wink]

To expand a little....
The 2 fastest N/A EFI 347's around have run the EXACT cam Drew has in his motor. Insalled 1 degree retarded as intended.

Boost is a totally different animal. Anybody can slap a Centrifugal band-aid on a shitty N/A setup & make good power.

RPM makes power PERIOD. HP = TQ * (RPM/5252)
Therefore, the higher you spin it, the more HP you will make.....& the LESS TQ you will make. If advancing the camshaft gives more TQ, it would decrease HP up top. This would be working BACKWARDS. You want to spin your motor as HIGH as possible. If the motor can breath at higher RPM's you're only slowing down the car by not reving it.

Q: 2 motors making the SAME HP, but one makes it 500rpm higher then the other. Which car is faster given proper gearing?

A: The one that makes power higher in the RPM.
Why do you think Purestreet 310's shift at 8200? Or Nascars shift at 9000?

The higher you spin it, the faster you move the air through the motor. Air Velocity = Power.

Posted by Yellow94GT (Member # 431) on :

quote:
Originally posted by JohnB:

quote:
AR plugs give me the warm fuzzy feeling because that IS the only thing I changed to when I was blowing out spark. With that I gained 5 tenths and 9 MPH. back to back times at the track. My car with no missfire gives me a warm fuzzy feeling all the time OK

I hear that. Same here. Went to a recessed tip plug (old chrysler plug) and picked up 8 mph.

Drew- what heads and plug combo are you running?

They are Vic Jr heads and Autolite 3924's gapped at .035

Posted by 2stangs69-91 (Member # 1951) on :

LOL not anybody can put a centrifical charger on a bad set up and make power that is just ignorant. Seen to many slow supercharged and turbo cars to buy that one. BTW I might have miss informed advancing cam in most cases not all will increase TQ and hurt HP. It all depends on how the cam is matched to the set up. Lightwork LOL you have yet to own a car that is faster than my slowest LOL who is light work, Spinning your motor for the highest RPM you can is all good as long the rotating assy and valve train can hold up. I disagree with your same HP vrs RPM theroy the motor making the same HP at a lower rpm would be more effeicient, achieve peak numbers sooner than the other motor pull ahead because at the same RPM the motor which made the HP number sooner would have more. Getting to the end of the 1/4 sooner is how we win not who gets there with the best MPH.

Posted by JohnB (Member # 969) on :

Have you tried any different plugs? Different styles/heat ranges/gaps?

2stangs69-91, you gonna be at the track Saturday?

Posted by 93PONY (Member # 60) on :

quote:
Originally posted by 2stangs69-91:
LOL not anybody can put a centrifical charger on a bad set up and make power that is just ignorant. Seen to many slow supercharged and turbo cars to buy that one. BTW I might have miss informed advancing cam in most cases not all will increase TQ and hurt HP. It all depends on how the cam is matched to the set up. Lightwork LOL you have yet to own a car that is faster than my slowest LOL who is light work, Spinning your motor for the highest RPM you can is all good as long the rotating assy and valve train can hold up. I disagree with your same HP vrs RPM theroy the motor making the same HP at a lower rpm would be more effeicient, achieve peak numbers sooner than the other motor pull ahead because at the same RPM the motor which made the HP number sooner would have more. Getting to the end of the 1/4 sooner is how we win not who gets there with the best MPH.

Wrong.
As usual.
You don't have to believe me. Just read what the Master's say:
http://www.rehermorrison.com/techTalk/47.htm

I won't even get into Hogging out heads which aids in boosted setups yet severely hinders N/A setups.... It's called Port Velocity. N/A cars need it, Boosted cars CREATE it.

Posted by Yellow94GT (Member # 431) on :

quote:
Originally posted by JohnB:
Have you tried any different plugs? Different styles/heat ranges/gaps?

2stangs69-91, you gonna be at the track Saturday?

Have you ever head of an N/A motor blowing out spark?

I haven't tried different plugs, it is strange how this problem occurs. Around 6000 rpm's it is down on power but then picks up again until 6400 and then drops off real bad.

ideas?

Posted by FasterDamnit (Member # 442) on :

Harmonics doing the tango in your valve springs.

Posted by JoeT (Member # 298) on :

great job with the car.

I think anyone would have to agree that if a car is encountering a problem at an rpm 100 above it's current HP peak, that advancing the cam a little bit is going to improve the on-track performance. Of course solving the spark related problem would be better still.

I see absolutely nothing technically wrong with the earlier statement that advancing the cam is more than likely to improve net area under the TQ curve between the on-track shift points.

Anything else is mindless, pointless bashing of a member with a faster car( correction, 2 faster cars) than (I think) all of us here.

Posted by 2stangs69-91 (Member # 1951) on :

I just read the RM article and it makes since. I actualy have that page saved to my Favorites but havn't read that article yet. My favorite is proabably flow bench falicies. It is much easier to try and learn form somebody who has proven to be one of the best than a aragant ass who is self proclaimed.(figure out who you are)
I am not ready to make the 2.5 hour drive to the track yet. I will be down there this winter sometime. I wish I could race your guy's local track all the time. If you have ever raced Redding you will understand LOL it is worth 2 tenths over Redding just from the traction.

I raced N/A for years and I have had plugs that were to hot of a heat range get Glazed(is the term I have heard for it)they actualy get hot spots and will fire early usualy under a heavy load

[ December 14, 2004, 04:49 PM: Message edited by: 2stangs69-91 ]

Posted by AaronC (Member # 86) on :

quote:
Originally posted by JoeT:
great job with the car.

I think anyone would have to agree that if a car is encountering a problem at an rpm 100 above it's current HP peak, that advancing the cam a little bit is going to improve the on-track performance. Of course solving the spark related problem would be better still.

I see absolutely nothing technically wrong with the earlier statement that advancing the cam is more than likely to improve net area under the TQ curve between the on-track shift points.

Anything else is mindless, pointless bashing of a member with a faster car( correction, 2 faster cars) than (I think) all of us here.

Advancing the cam is a band aide. Since it was a custom then it should of been a smaller cam if lower shift points etc were wanted. The graph is clean and makes avg. power everywhere so this advancing stuff is bogus. As far as power problems above peak power, it all started out at 5000 rpms and is now up to 6500ish. His valve train is setup right. The springs that are in it are used in pure street cars that spin regularly to the 8000 mark. His lifters are Shermans which are modified stock ones which will take spring pressures of solid lifters. This setup was meant to shift out at 6800-7000 RPM. It's peak is right where it should be given that target shift when the setup was in the creating. All that's left is to get it to shift PAST peak power and here comes more mph because he'll be in the meat of the power band it was designed for at the track.

Posted by Mr JoCo (Member # 1549) on :

I'd just like to be the first to welcome you out of the ghetto. [patriot]

Posted by Yellow94GT (Member # 431) on :

quote:
Originally posted by Mr JoCo:
I'd just like to be the first to welcome you out of the ghetto.

Haha, thank you [burnout]

Posted by JohnB (Member # 969) on :

No, I have never heard of a NA blowin' the spark out. I have heard of high-speed glazing, which will occur with RPM-induced conditions, as well as the obvious...high speed for extended periods of time. I think some plug-swapin' is next. Just my .02...

Posted by 93PONY (Member # 60) on :

quote:
Originally posted by 2stangs69-91:
I just read the RM article and it makes since. I actualy have that page saved to my Favorites but havn't read that article yet. My favorite is proabably flow bench falicies. It is much easier to try and learn form somebody who has proven to be one of the best than a aragant ass who is self proclaimed.(figure out who you are)

LOL
So when I post it, it's wrong & I'm a self proclaimed arrogant "ass". When an engine master posts it, it's right because it's "proven".
Hahaha! Whatever man.

& I've proven quite a few thing things in my time here.
I've done what you could not. Taken a stock bottom end N/A H/C/I setup into the 11's. With stock Edelbrock intake ports, shorty headers, & full weight streetcar non-the-less. A lot of 331's have a hard time matching that ET/MPH.
I've taken a STOCK headed car DEEP into the 11's at over 127mph with 12lbs of boost......at well over 3400lbs with limited traction. Who has a faster STOCK headed car on this site? There are only a few in the country that have gone faster with such shitty parts!
I've proven time & time agian that RETARDING a cam in certain combos is benefitial to ET/MPH. There are a few on this site.

And what am I doing now.... Building Bad-ass Modulars for a living. Designing camshafts for chevy's & fords across the country. I live and breath motors. Ask my wife. [Big Grin]

I don't spout off useless info simply to aggrivate the likes of you. I have no need to compete with a pompos shadetree like you. What's the point? I have much better things to do.....like post hard tech info BACKED UP by either experience or the experience of Pro's.

Posted by Yellow94GT (Member # 431) on :

quote:
Originally posted by JohnB:
No, I have never heard of a NA blowin' the spark out. I have heard of high-speed glazing, which will occur with RPM-induced conditions, as well as the obvious...high speed for extended periods of time. I think some plug-swapin' is next. Just my .02...

Looks like the next time I'll be able to work on the car will be Saturday at the track, might do a little testing there. Off the shelf Autolite 3923's a good place to start? Where are you guys finding the "race" Autolite plugs?

Posted by BlackNGold (Member # 655) on :

Drew, what's your ignition set up?...Are you runnin an MSD distributor?...What wires, coil, and ign module?....Just curious...

Posted by Yellow94GT (Member # 431) on :

quote:
Originally posted by BlackNGold:
Drew, what's your ignition set up?...Are you runnin an MSD distributor?...What wires, coil, and ign module?....Just curious...

It's a Crane HI6 Ignition box, Crane coil, Live wires, stock distributer, (tried MSD w/o and change), yadda yadda

Posted by JohnB (Member # 969) on :

Drew- I can special-order the AR's locally at cost (about 3.99 each or so) if you'd like me to pick up a set, lemme know, I can bring them to the track Saturday. I'll PM you my number, so gimme a call tomorrow if you're interested. Personally, I'd try a totally different plug. Like a 3910 or 3912, something of the sort.
John

Posted by BlackNGold (Member # 655) on :

I wonder if the stock module is having a "dwell" problem at 6500, just a thought...Is the dwell controlled by the EEC on the EEC-IV?....
[Confused]

Posted by Yellow94GT (Member # 431) on :

quote:
Originally posted by BlackNGold:
I wonder if the stock module is having a "dwell" problem at 6500, just a thought...Is the dwell controlled by the EEC on the EEC-IV?....

Your guess is as good as mine

Posted by FasterDamnit (Member # 442) on :

quote:
Originally posted by Yellow94GT:
Around 6000 rpm's it is down on power but then picks up again until 6400 and then drops off real bad.
ideas?

You are describing a classic symptom of valvetrain instability. Anyone care to dispute that? Doesn't matter what parts were used- troubleshoot the symptoms.

Posted by Yellow94GT (Member # 431) on :

quote:
Originally posted by FasterDamnit:

quote:
Originally posted by Yellow94GT:
Around 6000 rpm's it is down on power but then picks up again until 6400 and then drops off real bad.
ideas?
You are describing a classic symptom of valvetrain instability. Anyone care to dispute that? Doesn't matter what parts were used- troubleshoot the symptoms.

I'm all ears. But the car has had this same exact problem with 2 different sets of valve springs [Confused]

Posted by 93PONY (Member # 60) on :

Valvesprings & rockers have been swapped out. Before & after the swap the car was cutting out at 6500. There was also no sign of valvefloat when the old springs came off.

Posted by 98slowhoe 'FIFTYLX' (Member # 895) on :

quote:
Originally posted by Yellow94GT:

quote:
Originally posted by Mr JoCo:
I'd just like to be the first to welcome you out of the ghetto.
Haha, thank you

He's not out of the Ghetto, I saw were he lives, he has people getting arrested all around him [Wink]

Just playing man.

Well I looked on Summit and either holly isn't making that module anymore or summit isn't carrying them The part # HLY-891-105 and it was around 30 bucks. I'll try jegs.

Posted by 89TRUNK (Member # 2506) on :

I used to have somewhat of a problem like that but on a SBC, it turned out to be that i was running out of fuel on the top end.My car was losing power on the top end, have you considered a possible fuel issue? Just an idea....good luck

Posted by 98slowhoe 'FIFTYLX' (Member # 895) on :

quote:
Originally posted by 89TRUNK:
I used to have somewhat of a problem like that but on a SBC, it turned out to be that i was running out of fuel on the top end.My car was losing power on the top end, have you considered a possible fuel issue? Just an idea....good luck

His fuel was not an Issue on the dyno at all. His A/F was great.

Posted by bunchmyfunky (Member # 360) on :

I've been doing some checking on this on other sites. There are alot of posts about this and there all running Hi-6s. Things to check, make sure all ground wires are connected to a good ground and there nice and tight. Disconnect the tach. Remove the rev limiter on the Hi-6 and check. Also check your vacuum and see if it drops when the problem happens. Did you do the load test that I told you about? Gap the plugs even lower and see if that helps.

Posted by 93PONY (Member # 60) on :

quote:
Originally posted by bunchmyfunky:
I've been doing some checking on this on other sites. There are alot of posts about this and there all running Hi-6s. Things to check, make sure all ground wires are connected to a good ground and there nice and tight. Disconnect the tach. Remove the rev limiter on the Hi-6 and check. Also check your vacuum and see if it drops when the problem happens. Did you do the load test that I told you about? Gap the plugs even lower and see if that helps.

GREAT advise!
[patriot]

Posted by mustanggt5091 (Member # 444) on :

I have nothing but complaints about the HI-6 I had, switched to a MSD Digital6+, LOVE it [patriot]

Posted by jmcclesk (Member # 1355) on :

keeping my mouth shut.

Posted by 2stangs69-91 (Member # 1951) on :

93pony first time I have been called a shadetree LOL 19 years doing this profesionaly everyday to pay the bills and racing and winning since I was old enough to drive. AA Degree in Auto tech.and Engine Machine and ASE master tech for over 15 years., What do you have to do around here to get out from under the tree LOL. The article you linked from R&M was cool but isn't even relivant to 99% percent of the cars on this site. It is for super stockers and high dollar class racing. Plus what he mentioned. I do have to give you this. 93 PONY YOU ARE A LEGAND IN YOUR OWN MIND [worship]

Mark good find I hope that helps out also. Good info to know anyhow. If it is sending out funky signals it might be caught on a scope when it is happening. Even a lab scope if you know how to test with one.

BTW my 69 with stock ported FE heads went 10.10 at over 133. [Eek!]

how does that stack up.
I never even tried to put my 91 into the 11's NA never even crossed my mind to try it. That was your little deal not mine.

[ December 15, 2004, 03:10 PM: Message edited by: 2stangs69-91 ]

Posted by 66 AC COBRA (Member # 904) on :

hey drew, i got a spare msd 6a box if you want to try it out, your rev limiter sound be in the custom chip anyway

hopefully will be at the track on saturday if eljefe says i will tech in the cobra

Posted by Yellow94GT (Member # 431) on :

quote:
Originally posted by 66 AC COBRA:
hey drew, i got a spare msd 6a box if you want to try it out, your rev limiter sound be in the custom chip anyway

hopefully will be at the track on saturday if eljefe says i will tech in the cobra

That would be awesome bro. Anything is worth a shot [patriot]

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