Final Pump gas numbers from FMS
Tuned for 11.0:1 on a dyno jet = 11.5 on the road.
Tuned for 11.0:1 on a dyno jet = 11.5 on the road.
He told me I can run it on the street here without any problem, so I trust his judgement.
here are just a couple of pics...







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great great numbes, I hope I can get close to that.
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The GT55 is a 91.5mm turbo.....
Only Pump gas???? Why no C16 pulls???? Thats awsome HP though for Pump gas and really low boost..... awsome....
Stock PCM also correct??
Kyle
He told me I can run it on the street here without any problem, so I trust his judgement.
You can't run that lean on an FI motor on pump gas and be safe. Something bad will happen (detonation). Have him richen it up a lot, shoot for 11.0:1 on a dynojet. If he thinks that a 12.5:1 a/f is safe on pump gas you need a new tuner. I'm hoping there is more to the story like the wideband reading was off or something.
That 12.5:1 a/f will go to 13.0:1 a/f on the street i real world conditions. 12.5:1 is even pushing the limits when running c16. You have a lot of money invested in a bad *** setup, don't lose it all to a bad tune, i've seen it happen too many times on here and in person.
MY dyno reads .7-.8 lean so the 12.6 A\F is actually 11.8-11.9 A\F. I can run this kind of A\F due to the combustion chamber design,cam design and the big *** intercoller up front along with the efficient turbo. The intake air temp is located in front of the T\B and in these dyno test only gets 5-10 deg over oustside temp. If I was to dyno at 11.0-11.2 I would be blowing out black smoke like a diesel. This motor was built as a pump gas setup from the beginning. My N\A motors make the best power at 13.8-14.0 on my A\F display.
Now this is JUST a dyno test for now and IS NOT the final tune for the customer! Final street tuning is next.
Do any of you that preach 11.0-11.2 actually READ the spark plugs to see what is going on in the motor?
Last edited by Futral Motorsports; Nov 17, 2005 at 05:32 PM.
No pulls on c16 yet because hes been working his *** off with not only my setup, but a bunch of others as well.
I wonder if in the email he sent me it was a type, maybe he meant 11.6?
I dunno, maybe he can come in here and give us more info on it.
No pulls on c16 yet because hes been working his *** off with not only my setup, but a bunch of others as well.
I wonder if in the email he sent me it was a type, maybe he meant 11.6?
I dunno, maybe he can come in here and give us more info on it.




