This is topic Dyno Numbers are in... in forum General Talk at Northern California Ford Owners  .


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Posted by 91Trunkster (Member # 6598) on :
 
I just want to thank JohnB for all of his time and work he put into my car and Nick at Newtech for the awesome job he did with the tune, the car ran out of fuel at around 5200rpm's, but that was what I expected with only the 42's and a 255lph fuel pump.


 

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Posted by 92stangLX (Member # 3252) on :
 
Nice numbers. What is your combo?
 

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Posted by 2stangs69-91 (Member # 1951) on :
 
very nice!! should run some good numbers for you.
 

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Posted by SmokinLX (Member # 1684) on :
 
Damn You are going to be pushing the stock block when You get that fuel system flowing! Can't wait to see it run at the strip.
 

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Posted by Pure Stang (Member # 7251) on :
 
great numbers man
 

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Posted by wickedstang (Member # 7692) on :
 
Can wait for the #s it puts down 2 the track...
 

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Posted by 91Trunkster (Member # 6598) on :
 

quote:

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Originally posted by wickedstang:
Can wait for the #s it puts down 2 the track...

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quote:

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Originally posted by 88DroptopGT:
Sweet!

Mind sharing what the problems were?

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quote:

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Originally posted by jordan_0806:
nice numbers...time for a second fuel inline fuel pump and let's see what it can really do....still should be fast enough for now..

how much boost you running?

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11 pounds, the inline and some 60's are next before a re-tune, some are saying with more timing I can see over 100 more ft lbs of torque, it's only 14 degrees of timing right now, so there is plenty left on the table.

[ July 02, 2007, 12:18 AM: Message edited by: 91Trunkster ]
 

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Posted by 93PONY (Member # 60) on :
 
VERY nice #'s for a turbo car on a dynojet.
Most mine ever made was 506RW. LOL

Do you have a wideband?
The reason I ask is I have had nothing but problems with my own turbo car on dynojets. Boost was 2-4psi LESS on the dyno vs the street. Due to the way the old Autologic chips are programed (through the base fuel table & not through the Mass-air transfer function), on the street the car would make more boost & run lean (base fuel table is RPM based, it does not compensate for the added air moving through the maff). Had HG popping problems. Once I got a wideband in the car & richened things up, I never had a problem again (swapped to a PMS).

FWIW, you should really run more timing. Overly retarded ignition timing will burn the exhaust valves & guides very quickly. (makes the headers glow from the A/F mixture burning off in the header). It'll make the turbos spool like crazy though! Turbos should actually run a little more timing than a SC setup due to the high exhaust pressure. This too leads to burnt exhaust valves guides. I was running 23 degrees total in my setup & after ~1500 miles I pulled the heads to find excessively worn exhaust guides.

Sunoco 'Maximal' is one of the fastest burning race fuels which will also keep exhaust temps down & is recomended for limited timing setups like this, but 14 degrees is far too low. Ideally a stock timing curve is what should be used & is what I'll be running. (26 total) & yes, you'll pick up a LOT of power with 12 degrees more timing & the correct fuel!

Also, don't be afraid to throw a lot of timing at it down low. I run more timing below 3000RPM than any N/A car. Low compression, high octane, & no boost = no problem running a LOT of timing to get those turbos spooled up faster.
 

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Posted by nickn (Member # 193) on :
 
It's actually 15 degrees 3500 and up for now, when it went to 14 it dropped 11 rwhp so it definitely liked the timing and its about 24 to help it spool in the lower rpm area with the fuel system limitation I didn't feel pushing it would be a great idea. As for boost he said he saw 11 on the street, and I saw around 11-12ish on the dyno so they match up.

nice car, I loves me a turbo notch, just got to get it to hook up haha.
 

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Posted by 93PONY (Member # 60) on :
 
Looks like the timing curve is correct, just low. I run ~10 degrees more than that everywhere on race gas.
We see slow boost response & low boost with turbos on our dyno, so we have to finish off the tunes at the track.
But if it's making the same boost on the dyno vs the street, everything should be good to go.

Good job Nick!
 

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Posted by nickn (Member # 193) on :
 
right on, race gas is nice, perhaps I can do a flip chip and see what this car does on some 110
 

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Posted by nickn (Member # 193) on :
 
double post

[ July 02, 2007, 01:49 PM: Message edited by: nickn ]
 

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Posted by JohnB (Member # 969) on :
 
Congrats on the numbers! Add a bit more fuel, you'll be 500/500 no problem...just depends on how much you want to push the block.

Nick- thanks again for takin' care of another one for me.
 

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Posted by Luke87GT (Member # 21) on :
 
500/500 on a street driven stang would be awesome.

Everytime you floor it you must be thinking about the block huh Jimmy?
 

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Posted by Beasty5.0 (Member # 2935) on :
 
that's a ticking time bomb, the only problem: you don't know when it's going off
 

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Posted by hidnn.o.s. (Member # 1219) on :
 
I think he'll be fairly safe. Especially on the street. He won't hook up hard enough to hurt anything. Taken care of, should last a while, imo.
 

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Posted by 93PONY (Member # 60) on :
 
My first 331 (stock block) made 430/507RW with a Byron tune on a dynojet.
After about a year I decided to swap out to a Dart.....I thought the old stock block was fine, so I put it on the shelf. Ended up having it machined for a customer & found the block was twisted ~.003" in the #2 & #4 mains. Always wondered why it tore up the thrust bearing. (that's why I bought the Dart)
Never even ran slicks with that block. Best was 11.5 @123MPH on DR's.
 

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Posted by 91Trunkster (Member # 6598) on :
 
Everytime I floor it I'm thinking I hope I don't lose control, after I get more fuel I may lower the boost and see what happens with a tune with all the fuel there, I'm not trying to break any records so the 500hp doesn't bother me, it's definatly fun to drive on the street and I'm not pushing it too hard at all, just enjoying having a running Turbo Mustang again.
 

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Posted by 93PONY (Member # 60) on :
 
Turbo Horse Power is different than SC/N2O power anyway. #'s are typically low for the ET/MPH the car runs.

With 430/507 my car went 119mph at 3500lbs.
480/480 was 125mph best.
506RWHP with the auto gave me 129mph right off the bat.
 

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Posted by carajo (Member # 4426) on :
 
are we going to see this car run on sunday at sac?
 

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Posted by 91Trunkster (Member # 6598) on :
 

quote:

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Originally posted by carajo:
are we going to see this car run on sunday at sac?

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