Here's a good reason to have your car custom dyno tuned


K

Kirby Vieira

GT Owner/B.o.D
Mark IV Lifetime
Sep 22, 2005
1,768
Atlanta
Today and tomorrow, Jerry Wroblewski (SCT) was/is back in Atlanta at Team Ford in Marietta. He's a Former Ford Guy whose duties included establishing the production tune for the GT. Today an owner from Augusta brought his 2,000 mile GT for a tune. Now, granted, it was red, but even so, the baseline dyno was only 385 HP. :frown (Just kidding about the red) :banana Previously, the lowest baseline we had seen in Atlanta was 475 HP. The owner didn't bring it in because he was disappointed in the performance, rather he thought what is was, is what it was, but thought a tune was a good idea. After a few pulls, Jerry had it conservatively tuned at 535 HP. Do you think this guy was surprised on his interstate drive home with an additional 150 ponies! :banana :banana
I wonder how many other GT's are seriously poorly tuned, and the owners are unaware, or think what it is, is what it is, because that's the way it came from the factory.
 
I'd like to have mine tuned, but I don't think I'm man enough for any more power than I already have.
 
huge percentage change

Kirby Vieira said:
Today and tomorrow, Jerry Wroblewski (SCT) was/is back in Atlanta at Team Ford in Marietta. He's a Former Ford Guy whose duties included establishing the production tune for the GT. Today an owner from Augusta brought his 2,000 mile GT for a tune. Now, granted, it was red, but even so, the baseline dyno was only 385 HP. :frown (Just kidding about the red) :banana Previously, the lowest baseline we had seen in Atlanta was 475 HP. The owner didn't bring it in because he was disappointed in the performance, rather he thought what is was, is what it was, but thought a tune was a good idea. After a few pulls, Jerry had it conservatively tuned at 535 HP. Do you think this guy was surprised on his interstate drive home with an additional 150 ponies! :banana :banana
I wonder how many other GT's are seriously poorly tuned, and the owners are unaware, or think what it is, is what it is, because that's the way it came from the factory.
Click to expand...
Kirby,

This is interesting. I wonder what had to be tweaked to get back up to 535 HP? That's a huge percentage change.

Jay
 
Jay,
I had my car tuned along with Kirby's June 1st and my car was the one with 475 rwhp, 456 torque. I previously tracked it at Road Atlanta and had some Porsche Turbos and Z06s blow by me on the straight. They loved my car because on the shifts from 3rd to 4th and back down to 3rd I was blowing a 2 ft. orange flame out the exhaust. Burning a little rich maybe? When they put it on the dyno the A/F ratio was off the chart. I had a pulley installed and the tune, end result 599.1 rwhp, 567 torque. At 2700 rpm I had 400 ft. lbs of torque now at 2700 rpm I have 525 ft. lbs of torque. Kind of got me in alittle trouble coming around a turn at the Little Talladega Grand Prix coarse. No doubt this is a totally different car, you have to be very respectful of grip or lack of grip. That being said I'm out the door to have Jerry take another look at the tune because I'm overheating on the track. I will post what we find.
Flash :thumbsup
 
Jay,
I don't know all the things Jerry does other than A/F, but the car was obviously very rich at the 385HP baseline pull. The car sounded smooth, but the plugs were also replaced as part of the process.
 
Tune

Kirby - I could not agree more. Jerry worked wonders on my car. Got me to
559 rhp - stock - with loads more mid-range and torque coming from the basement. :thumbsup

Jerry at work...

http://www.youtube.com/watch?v=1VBeqAB2L_M

Gordo
 
The stock calibration is ridiculously conservative; Ford did that for good reason. You can gain a lot of power with a totally stock GT as you above have noted with recal alone. Throw a pulley in the mix you can get into the 600+ range easily. With a ton more HP/TQ thru out the whole RPM range.

I have never personally witnessed a GT put down under 500whp stock. I would like to see both before and after sheets. Also what type of dyno was used ?
 
Torrie, it's a DynoJet. I watched the dyno runs and saw the sheets but do not have access to them. On the 1st 385 HP pull, the graph was reasonably smooth until around 5000 rpm when it fell off badly and looked like a liar on a polygraph test.
 
Yeah that sounds off big time. But we can't at all speculate without data. Thanks for the hit back KV.
 
Huuum....... 385 seems far too low

Now certainly anything is possible however IMO and based on my time twisting and tweaking on a dyno even "IF" this gal was belching black smoke I think a number far greater than this would be seen particularly on a FI gal.

In any case I am happy that she is running strong however I too would enjoy seeing the run data

Please upload the raw run files and I will export them into my program or simply export the data to a PDF file which the DynoJet system is setup to do and post the actual chart

Thank you

Shadowman
 
Shadowman said:
Huuum....... 385 seems far too low

Now certainly anything is possible however IMO and based on my time twisting and tweaking on a dyno even "IF" this gal was belching black smoke I think a number far greater than this would be seen particularly on a FI gal.

In any case I am happy that she is running strong however I too would enjoy seeing the run data

Please upload the raw run files and I will export them into my program or simply export the data to a PDF file which the DynoJet system is setup to do and post the actual chart

Thank you

Shadowman
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+2
 
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