03 Sunfire 2.2l Eco and HP Tuners - Tuning Forum

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03 Sunfire 2.2l Eco and HP Tuners
Thursday, June 08, 2006 4:24 AM
I have HP Tuners and a friend of mine has a stock 03 5 speed Sunfire. He wants to know what the gains will be if I do it for him. Do any of you know? Thanks!

Re: 03 Sunfire 2.2l Eco and HP Tuners
Thursday, June 08, 2006 8:39 AM
with something stock? pretty much nothing at all, tell him to spend that 450 on a TB and intake



1989 Turbo Trans Am #82, 2007 Cobalt SS G85





Re: 03 Sunfire 2.2l Eco and HP Tuners
Thursday, June 08, 2006 8:48 AM
I think there are gains to be had, just playin with the spark tables gave my car a lot more power. Problem is nobody has tuned then dyno'd a stock car, so we can't really put numbers on anything.





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Re: 03 Sunfire 2.2l Eco and HP Tuners
Thursday, June 08, 2006 9:00 AM
how exactly do you mess with the spark tables , in the high octane just raise them by 1 until you get knock?



1989 Turbo Trans Am #82, 2007 Cobalt SS G85





Re: 03 Sunfire 2.2l Eco and HP Tuners
Thursday, June 08, 2006 9:02 AM
Before you play with them, you have to set the low octane and high octane tables the same, for both the regular tables and the PE tables. Then do some logging to figure out where you have knock, then adjust the areas you don't have knock up a bit, and the areas you do have knock down.





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Re: 03 Sunfire 2.2l Eco and HP Tuners
Thursday, June 08, 2006 5:12 PM
well the stock tables are not the same, the high octane has alot more advance across the board



1989 Turbo Trans Am #82, 2007 Cobalt SS G85





Re: 03 Sunfire 2.2l Eco and HP Tuners
Thursday, June 08, 2006 5:14 PM
Thats the point, you are tuning the high octane table, removing knock, then setting the low octane table the same, removing a couple degrees accross the board in that table, then you should gain power.





4cyltuner.com - Information Source For 4 Cylinder Tuners
Buy stuff from CarCustoms Ebay! Won't be disappointed!

Re: 03 Sunfire 2.2l Eco and HP Tuners
Friday, June 09, 2006 12:36 PM
How much power are we talking here....ball park

with intake and full exhaust



I have one true love in my life...And my girlfriend sits next to me in it
Re: 03 Sunfire 2.2l Eco and HP Tuners
Friday, June 09, 2006 3:02 PM
hard to say nobody has dynoed baseline, then made a bunch of changes to an NA car and compared the difference, im not sure how much you can get out of spark advance alone



1989 Turbo Trans Am #82, 2007 Cobalt SS G85





Re: 03 Sunfire 2.2l Eco and HP Tuners
Sunday, June 18, 2006 5:08 PM
i'm a believer u can prolly get like 10 more HP out of a stock tune. i wouldnt say anymore then that.



MY 2003 SUNFIRE 15.33@88.5mph

"A N/A ecotec is not gonna give Honda's and Mitsu's that much of a run for their
money unless their blown or bottle fed.GM is still smokin crack!"
~1QWKZ24
www.streetracing.org, 08/2001
Re: 03 Sunfire 2.2l Eco and HP Tuners
Sunday, June 18, 2006 10:11 PM
is there any another indicator of to much spark advance other then knock? is there any potential preformance loss other then timing being pulled from knock being present from advancing the spark?



|Forged 8.9:1 Wiseco Pistons|Forged Eagle Rods|HPTuners|60trim|Tial Wastegate|
|Precision Intercooler|2.5" Exhaust|2.5" Charge Pipes|630CC Mototron Injectors|
|Stock: Fuel Pump, Transmission, Manifold, TB, Head, Head Gasket, Ignition, Suspension...|

Re: 03 Sunfire 2.2l Eco and HP Tuners
Monday, June 19, 2006 6:08 PM
Yes, Acer, you can lose performance by advancing timing too far w/out Knock, but yet, none of us know what that point is yet, eventually someone will figure it out with a lot of $$ and dyno time.


___________________________________________________________________

15.149 @ 91.26mph 3-18-2006
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