heres some dyno's of my daily driver on pump gas and a mild street tune. I set out to turbo my car with 1 goal in mind a very broad and flat powerband regardless of boost level. I'm happy with the results thus far but theres still more power left on the table with a more aggressive street tune, and ALOT more in race gas high boost tune. I'm estimating 400whp and 400+lb/ft torque on race gas and 24 psi
14psi run
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20psi run
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Last edited by BoostedSOL : 02-02-2007 at 02:52 PM.
Are you using a Turbo Solstice as a daily driver? Who provided the Turbo setup? These are very impressive numbers (compared to the standard NA Solstice).
I have been thinking of that as an option. How many miles have you driven with the Turbo installed? Reliable?
Are you using a Turbo Solstice as a daily driver? Who provided the Turbo setup? These are very impressive numbers (compared to the standard NA Solstice).
I have been thinking of that as an option. How many miles have you driven with the Turbo installed? Reliable?
Sorry to ask so many questions.
I built and tuned the car, I drive the car everyday and have put 10,000 miles with it turbo'd. I have built the engine thats the reason for the higher boost levels. anytime you more than double whp potential for breakage occurs.
That's the exact method I am using on my car. I want an extremely flat powerband, and I will have it too. My turbo is slightly different then yours, but the results will be similar. Nice work.
BTW, are you using a custom OS with LS2 Edit, or can LS2 Edit use a 2 bar MAP sensor on any application? (HP Tuners doesn't offer that for everything, only on the LSx vehicles)
Impressive #'s and lots of Torque @ low RPM's . I was looking at your A/F Bar & it is Very flat. Are you using a Fuel Pressure Reg? If so what pressure are you running @ on your 14 psi run??? That was the hardest thing for me to tune in on the stage III system but i am around 12-12.5 on the A/F ratio and my fuel pressure is based off the boost pressure but i am only pushing 12-13 psi. so i think my fuel pressure is around 70 psi @ max boost. Thanks for any insight you can give me.
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alot of the gang at cobaltss.net would love to hear of your results,they are despertly waiting on turbos
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BTW, are you using a custom OS with LS2 Edit, or can LS2 Edit use a 2 bar MAP sensor on any application? (HP Tuners doesn't offer that for everything, only on the LSx vehicles)
Looks great man, you could definatly use some shorter intake runners, and much more intake duration, you've saturated the motors ability to breath by 5200 rpm. You want a flat TORQUE curve, not a flat HORSE :}
So it looks like 320 whp is what the head and cams naturally peak at. Your intake mach numbers are probably around .500 by 5k rpm or so. Where as they wouldn't have been that way until 6200 rpm NA.
Looks great man, you could definatly use some shorter intake runners, and much more intake duration, you've saturated the motors ability to breath by 5200 rpm. You want a flat TORQUE curve, not a flat HORSE :}
So it looks like 320 whp is what the head and cams naturally peak at. Your intake mach numbers are probably around .500 by 5k rpm or so. Where as they wouldn't have been that way until 6200 rpm NA.
I basically have very little intake manifold runner length as Im using the LSJ intercooler/intake manifold. I do agree I can use some more cam as well as a nicely port matched head, but my turbo/turbine choice is playing a big part in the power curve. as far as the power curve is concerned Im very happy with the car it has ontap power potential anywhere i put my foot in it its fun as hell. I have been talking with a cam manufacturer and hes more than willing to design a cam setup for boosted versions of the car, i just have to get off of my butt and send him my spare head.
on a side note in the meantime what are your thoughts on using the GXP exhaust cam its a direct bolt in and has more valve lift and a little less overlap????
im using LS2 edit with an auxilliary injection system...basically i am using the factory ecm map under non boost conditions then I use the LSJ 2.5 bar map sensor for a load reference under boost.
I hit the 13.0 at about 15-16 psi on the stock engine...again dont take boost level as a power figurer(is that a word lol?) My entire system is designed to make maximum power at a low rpm and maintain power thru redline...gearing of the car dictates this type of powerband for my purposes. I am guesstimating the car will run low 12's now on pump gas at 21 psi and i should hit 11's on race gas and 23-24psi. A built engine really allows you to enjoy the car without worry... I wish i took some pics of my factory con rods once they BENT like banana!
Last edited by BoostedSOL : 02-19-2007 at 10:09 PM.
I hit the 13.0 at about 15-16 psi on the stock engine...again dont take boost level as a power figurer(is that a word lol?) My entire system is designed to make maximum power at a low rpm and maintain power thru redline...gearing of the car dictates this type of powerband for my purposes. I am guesstimating the car will run low 12's now on pump gas at 21 psi and i should hit 11's on race gas and 23-24psi. A built engine really allows you to enjoy the car without worry... I wish i took some pics of my factory con rods once they BENT like banana!
Those are some really good numbers. Since you are making boost really low, how good do you think you can do on the track it self ? Or is your car set up for running 1/4mile only ?
How fast do you think my car will be in the 1/4 when it is done? Should be close to 300whp when all done and said. Running 8psi. FULL boost by 3600rpm I think it was.
Thanks.
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Those are some really good numbers. Since you are making boost really low, how good do you think you can do on the track it self ? Or is your car set up for running 1/4mile only ?
How fast do you think my car will be in the 1/4 when it is done? Should be close to 300whp when all done and said. Running 8psi. FULL boost by 3600rpm I think it was.
Thanks.
car is a daily driver but I like running the 1/4... If i can give any advice dont rely on dyno data use that as a before and after gauge for tuning and to setup shift points for gears. the only real gauge of performance is side by side/real world testing(on road and on track) I saw your dynos and the power band is reminisce
. I was looking at your A/F Bar & it is Very flat. Are you using a Fuel Pressure Reg? If so what pressure are you running @ on your 14 psi run??? That was the hardest thing for me to tune in on the stage III system but i am around 12-12.5 on the A/F ratio and my fuel pressure is based off the boost pressure but i am only pushing 12-13 psi. so i think my fuel pressure is around 70 psi @ max boost. Thanks for any insight you can give me.
