This is topic 6 speed and Clutch to handle 700rwhp? What do you suggest? in forum Tech Talk at Northern California Ford Owners  .


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Posted by WIKD 281 (Member # 40) on :
 
I am on the fence on wether to sell my car. I am considering going back to a 6 speed and would like to know what is the strongest setup? I was thinking of running a D+D performance Viper spec. 6 speed tranny with a Spec stage 4 clutch. I will be mostly driving on the street but ocassinally might be going back to the drag strip and would launch on E/T Drags so I need something that is going to be stout. In my car I have used a Kevlar 11" clutch that was made by a guy down in San Jose and had good luck with it. However, my previous T-56 out of a 2000 cobra R from D+D performance didnt hold up to the abuse at all. Whats a good clutch now a days that doesnt chatter with street driving? How about flywheel, is aluminum better than steel?
Thanks for any help!
 

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Posted by 98slowhoe 'FIFTYLX' (Member # 895) on :
 
I would give Walt at Pro-motion a call. I can post his number later or maybe Drew can if he sees this thread. He can set you up with just about anything you really need.
 

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Posted by 64valves (Member # 7295) on :
 
liberty
 

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Posted by WIKD 281 (Member # 40) on :
 

quote:

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Originally posted by 64valves:
liberty

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Liberty??????
 

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Posted by 93PONY (Member # 60) on :
 
Liberty & Pro-motion do all the NMRA stuff. Either place can get you what you need.
I've persoanlly delt with Walt at Pro-Motion & have had good success running his clutches on customers cars with 650+RWHP/TQ. Never ran one of his trannies.

Drag stip only, you may want a pro-shifted setup...or perhaps a G-force.... I'd talk with Walt or Liberty on exactly what you want out of the tranny.
 

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Posted by WIKD 281 (Member # 40) on :
 
Thanks sean! I will try to make some phone calls tomm
 

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Posted by 88DroptopGT (Member # 2535) on :
 
I don't know if the record of the fastest 5-speed mustang is still alive @8.99/154 but MMR built the owner's T-5.

http://www.modularmustangracing.com/prod_trans_drive.htm
 

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Posted by 93PONY (Member # 60) on :
 

quote:

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Originally posted by 88DroptopGT:
I don't know if the record of the fastest 5-speed mustang is still alive @8.99/154 but MMR built the owner's T-5.

http://www.modularmustangracing.com/prod_trans_drive.htm

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I happened to be at the track when they ran that.
The MMR stuff is basically a Tremec with heat-treated gears. Once heat treated the gears are not as brittle as they once were....so instead of shocking the tranny & breaking teeth off, the gears 'give' a little bit. Unfortunately the draw back is the tranny will wear out faster. Probably a non-issue with a car like this though.
 

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Posted by TRIXSNK (Member # 2844) on :
 
Since you said you'd drive it on the street a fair amount of the time have you ever considered a twin-disc set-up for light pedal pressure but still high clamping force?

As for the tranny i'm not sure what would be suitable for your application but if i had more power i'd end up with a D&D Viper spec unless i knew of another that blew that away.

Sounds like lots of money to harness that amount of HP

My set-up is a CF DFX 26 spline w/ an Alum. Fidanza plate.

I'm only pushing 600ish rwhp though and there is a very slight chatter depending on how you drive........but ask anyone here and they'll let ya know that i drive my Cobra all over the place especially to and from the track (4+hrs. round trip)

[ January 04, 2007, 12:25 PM: Message edited by: TRIXSNK ]
 

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Posted by 1Sicgt (Member # 714) on :
 
check your pm's harold.
 

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Posted by WIKD 281 (Member # 40) on :
 
Thanks for the info. guys! Now just have to decide if im going to sell it or keep it
 

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Posted by Larry (Member # 5176) on :
 
Harold! YOu mean that Cobra R tranny I bought from you was not handeling your HP??

You know I just put down 700 rwhp on that tranny and the Kavlar Clutch. Gertting ready to hit the 760, 770 rwhp numbers. I am going with the stage 3 clutch ...supposed to handel 800 lbs of torque.

Larry
 

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Posted by WIKD 281 (Member # 40) on :
 
Allright Allright Larry. RWHP nothing.
Show me the Track times. Time slips please.

 

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Posted by WIKD 281 (Member # 40) on :
 

 

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Posted by Larry (Member # 5176) on :
 
Harold! NOt trying to flaunt HP///Looking for some answers on tranny and clutch, like you.

I will be beating the Cobra R tranny you sold me a year ago...I suppose If I find a good clutch the tranny is my only weak spot..

Yes I will be showing some time slips in about 3 months??
Bought some 17x9 Konig rims with MT et streets brand new.
 

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Posted by WIKD 281 (Member # 40) on :
 

quote:

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Originally posted by Larry:
Harold! NOt trying to flaunt HP///Looking for some answers on tranny and clutch, like you.

I will be beating the Cobra R tranny you sold me a year ago...I suppose If I find a good clutch the tranny is my only weak spot..

Yes I will be showing some time slips in about 3 months??
Bought some 17x9 Konig rims with MT et streets brand new.

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Right on man! Let me know when you go to the track, would love to watch
 

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Posted by TRIXSNK (Member # 2844) on :
 

quote:

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Originally posted by Larry:
Harold! NOt trying to flaunt HP///Looking for some answers on tranny and clutch, like you.

I will be beating the Cobra R tranny you sold me a year ago...I suppose If I find a good clutch the tranny is my only weak spot..

Yes I will be showing some time slips in about 3 months??
Bought some 17x9 Konig rims with MT et streets brand new.

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I'd like to see that as well with over 700rwhp
 

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Posted by WIKD 281 (Member # 40) on :
 
Looks like 10.43@125 is the time to beat
"Thats with the top up"
SN95.
 

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Posted by 93PONY (Member # 60) on :
 
Twin disks are hard on syncros.
A synco's job is to slow down the rotating clutch disk to allow smooth engagment of the next gear. The rotating clutch disk has mass. Add another disk & the syncro must slow down twice the mass. This results in severely worn syncros in a short amount of time. Certain trannys can handle twin disk setups, others can not.
 

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Posted by TRIXSNK (Member # 2844) on :
 

quote:

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Originally posted by 93PONY:
Twin disks are hard on syncros.
A synco's job is to slow down the rotating clutch disk to allow smooth engagment of the next gear. The rotating clutch disk has mass. Add another disk & the syncro must slow down twice the mass. This results in severely worn syncros in a short amount of time. Certain trannys can handle twin disk setups, others can not.

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Thanks for the explanation Shaun

By the way i'm going to shoot JeffS a pm but if you talk to him can you let him know Patrick has a ? for him.
 

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Posted by WIKD 281 (Member # 40) on :
 
Trixsnk> what did you pay for the centerforce clutch? Why did you go with the DFX instead of the dual friction? Im not sure if theyre the same thing, but when I was on their website earlier I saw they were under diff. categories.
Are you still running the stock 03 cobra T-56? Havent had any problems? Do you launch on slicks?
 

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Posted by outlaw10.5 (Member # 7385) on :
 
Tranny http://www.gforcetransmissions.com/tran_gt-56.asp

Clutch
http://news.hspn.com/articles/1052/1/High-Performance-Street-Twin-Clutch-From-McLeod-Industries/Page1.html
 

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Posted by JohnB (Member # 969) on :
 
I've been running a RAM 900 series in my Cobra for well over 2 years now. No problems and it handles the 700+ my setup is pushing.
 

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Posted by WIKD 281 (Member # 40) on :
 
Outlaw> thanks for the heads up. I emailed them, hopefully tomm. I'll hear back from them.
Thanks

JohnB> Thanks for the reply also. Please forgive me> but what is a Ram 900? Tranny or clutch? Sounds like its a 5 speed tranny, no?
 

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Posted by JohnB (Member # 969) on :
 
It's the clutch. Trans is a early TKO.
 

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Posted by WIKD 281 (Member # 40) on :
 

 

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Posted by TRIXSNK (Member # 2844) on :
 

quote:

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Originally posted by WIKD 281:
Trixsnk> what did you pay for the centerforce clutch? Why did you go with the DFX instead of the dual friction? Im not sure if theyre the same thing, but when I was on their website earlier I saw they were under diff. categories.
Are you still running the stock 03 cobra T-56? Havent had any problems? Do you launch on slicks?

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I paid roughly $1000 for the complete set-up including p/p, dfx disc, fidanza f/w, and mcleod tob.

The main diff between the 2 is that they use the same d/f p/p but diff discs. The dfx uses a 6 puck sprung hub disc that's supposed to hold more hp so that's why i got it.

There were a bunch of guys going through the reg d/f discs and i thought it would be a suitable sacrifice of minor chatter for less slip.

Not to confuse you more but they also have a LMC series ( light metal clutch ) but's it's lots of $$$.$$

This is on the stock T-56 that came with the car, it's not launched on full slick just MT DR's at about 4500rpm with a very quick release but not full dump, no probs yet as i'm on stock half-shafts and have gone into the low 1.5x 60's.
 

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Posted by WIKD 281 (Member # 40) on :
 
rojo rojo (snow man in smokey and the bandit).
Thanks
 

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Posted by WIKD 281 (Member # 40) on :
 

quote:

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Originally posted by 98slowhoe 'FIFTYLX':
I would give Walt at Pro-motion a call. I can post his number later or maybe Drew can if he sees this thread. He can set you up with just about anything you really need.

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quote:

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Originally posted by WIKD 281:
Outlaw> thanks for the heads up. I emailed them, hopefully tomm. I'll hear back from them.
Thanks

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quote:

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Originally posted by WIKD 281:

quote:

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Originally posted by 98slowhoe 'FIFTYLX':
I would give Walt at Pro-motion a call. I can post his number later or maybe Drew can if he sees this thread. He can set you up with just about anything you really need.

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I just did a google search for these products and cannot find any number of their shop or companies. Would you happen to have more info?
Thanks!

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Pro-Motion: (800)771-6843
Ask for Walt.
 

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Posted by TRIXSNK (Member # 2844) on :
 
fwiw - I sat in Jim's Vert Cobra with the Promotion clutch and the pedal pressure was a bit stiffer than mine with the CF DFX set-up.

But hey to harness 700rwhp it ain't guna feel like a Honda (nor would i want it to )
 

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Posted by 93PONY (Member # 60) on :
 
Yep, every pressure plate feels different. Even the same brand. The DFX I did on an 03 Cobra feels like stock & seems to hold.....but we'll know for sure after this weekend. It'll have slicks bolted up running with the new TT setup.

The real difference with the Pro-motion stuff is the disk. The inner plate between the front/rear disk surface has more 'spring' in it. This allows the use of a very 'grabby' friction material, yet the clutch is not 'on/off'.....like a SPEC 3, 4 or 5 is. There's some give before the clutch grabs 100%. NMRA racers use these clutchs & from my experience they tend to give better launches without spinning the tires from 'shocking' the drivline. It's typical for the NMRA guys to ditch the clutch when the inner plate looses it's 'spring'.....60ft times suffer, they can actually feel that the clutch is grabbing harder & they replace it.

The drawback is that because of this 'springy' disk the stock clutch quadrant can NOT be used. You must use an adjustable setup & aluminum quadrant.....& it can be a little tricky to adjust the clutch correctly. The feel of the pedal is not like most other clutchs.
 

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Posted by WIKD 281 (Member # 40) on :
 
Right on man. Thanks for the info. Which turbo cobra will be at the track this weekend? I dont remember the name of the guy but I think I met him one time at the last cafords get together a few months ago held at the Farmers parking lot on a Sat, he showed up with JeffS.
How much boost is he running? Last I talked to him, he was running the stock halfshafts, is he still running the same setup?
 

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Posted by WIKD 281 (Member # 40) on :
 

quote:

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Originally posted by TRIXSNK:
Since you said you'd drive it on the street a fair amount of the time have you ever considered a twin-disc set-up for light pedal pressure but still high clamping force?

As for the tranny i'm not sure what would be suitable for your application but if i had more power i'd end up with a D&D Viper spec unless i knew of another that blew that away.

Sounds like lots of money to harness that amount of HP

My set-up is a CF DFX 26 spline w/ an Alum. Fidanza plate.

I'm only pushing 600ish rwhp though and there is a very slight chatter depending on how you drive........but ask anyone here and they'll let ya know that i drive my Cobra all over the place especially to and from the track (4+hrs. round trip)

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When you leave from a stop, you mention a slight chatter, otherwise, are you able to take off like if the car was running the stock clutch? I have looked into the dual friction setup, and have looked away from them because there a bit out of my price range. I would like to setup my car now so that I can drive it. I have a built AOD in it now, and it was a blast on the track. But, now I think I would like something that I can go thru the gears with, and still have a little fun with "if" the car ever makes it back on the drag strip. I have looked away from G force transmisions because they're out of my price range as well. However, it seems like they're some of the best setup 6 speeds you can get. From what I understand, most trannies/clutch setups will not allow you to shift much over 7000 rpm. But, G-force has a Pro shifted setup that allows you to. Sounds really trick and from what the other guys that have replied to this post say that they are really nice/ just pricey If I was building a 1000 hp monster, I would go with them.
At this point I think im going with a Viper Spec. D+D tranny. Still looking for a streetable clutch that I will be happy with.
 

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Posted by TRIXSNK (Member # 2844) on :
 

quote:

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Originally posted by WIKD 281:

quote:

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Originally posted by TRIXSNK:
Since you said you'd drive it on the street a fair amount of the time have you ever considered a twin-disc set-up for light pedal pressure but still high clamping force?

As for the tranny i'm not sure what would be suitable for your application but if i had more power i'd end up with a D&D Viper spec unless i knew of another that blew that away.

Sounds like lots of money to harness that amount of HP

My set-up is a CF DFX 26 spline w/ an Alum. Fidanza plate.

I'm only pushing 600ish rwhp though and there is a very slight chatter depending on how you drive........but ask anyone here and they'll let ya know that i drive my Cobra all over the place especially to and from the track (4+hrs. round trip)

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When you leave from a stop, you mention a slight chatter, otherwise, are you able to take off like if the car was running the stock clutch? I have looked into the dual friction setup, and have looked away from them because there a bit out of my price range. I would like to setup my car now so that I can drive it. I have a built AOD in it now, and it was a blast on the track. But, now I think I would like something that I can go thru the gears with, and still have a little fun with "if" the car ever makes it back on the drag strip. I have looked away from G force transmisions because they're out of my price range as well. However, it seems like they're some of the best setup 6 speeds you can get. From what I understand, most trannies/clutch setups will not allow you to shift much over 7000 rpm. But, G-force has a Pro shifted setup that allows you to. Sounds really trick and from what the other guys that have replied to this post say that they are really nice/ just pricey If I was building a 1000 hp monster, I would go with them.
At this point I think im going with a Viper Spec. D+D tranny. Still looking for a streetable clutch that I will be happy with.

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I totally hear what you're saying in regards to finding a nice "streetable" set-up that can handle the power and still lay down ET's.

I would consider my car to fit right into that category at this point in time at this power level.

Once you get used to the clutch action you can even drive it with zero chatter but leave a stop light with a bit to little rpm and you'll get some chatter but nothing too crazy

I've been in all kinds of street traffic and have had no probs except for being frustrated at having to sit in the traffic

If you are close by feel free to let me know and you can drive the Cobra to see what i'm talkin about
 

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Posted by WIKD 281 (Member # 40) on :
 
right on man! Thanks for the help! Right now I have a few messages in to people and am waiting for them to get back to me.
So far:

-Walt @pro motion has a T-56 setup w/ the upgraded internals, w/the 26spline input, but w/o the upgraded output shaft which is 30 or 31spline. He says that he can provide me with a clutch as well that will be very close if not a little more stronger (?) than a centerforce DFX. I may not need the heavy duty output shaft because I dont plan on launching my car as hard- not sure- I think at the most I would like to go back and time the car with my drag radials and see how quick I can get it with them.

-I am still considering a Viper T-56 from D+D with the Centerforce DFX clutch. What is nice about the D+D setup is that it has the 31spline output and they offer a drive shaft kit. It just seems a little easier with their setup, more like a complete assembly instead of me trying to hunt down parts.

I am awaiting some prices and then I will try to make my decision
 

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Posted by TRIXSNK (Member # 2844) on :
 

quote:

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Originally posted by WIKD 281:
right on man! Thanks for the help! Right now I have a few messages in to people and am waiting for them to get back to me.
So far:

-Walt @pro motion has a T-56 setup w/ the upgraded internals, w/the 26spline input, but w/o the upgraded output shaft which is 30 or 31spline. He says that he can provide me with a clutch as well that will be very close if not a little more stronger (?) than a centerforce DFX. I may not need the heavy duty output shaft because I dont plan on launching my car as hard- not sure- I think at the most I would like to go back and time the car with my drag radials and see how quick I can get it with them.

-I am still considering a Viper T-56 from D+D with the Centerforce DFX clutch. What is nice about the D+D setup is that it has the 31spline output and they offer a drive shaft kit. It just seems a little easier with their setup, more like a complete assembly instead of me trying to hunt down parts.

I am awaiting some prices and then I will try to make my decision

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Best of luck to ya and keep us posted on how things turn out
 

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Posted by WIKD 281 (Member # 40) on :
 
I'll let you know! I like to post my research findings because hopefully it will be here a while and other people can be informed
 

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Posted by TRIXSNK (Member # 2844) on :
 

quote:

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Originally posted by WIKD 281:
I'll let you know! I like to post my research findings because hopefully it will be here a while and other people can be informed

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That's what we're all here for brotha
 

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