www.tunetimeperformance.com

Next to the Cobalt ss click the links .


BTW all Graphs are from Hot cars most made 4-5 fourth gear runs . It would be easy to dyno a Cold car and make 8-10% more power .

 

looks good!! now let's see some #'s for the 2.2????

 

Damn looks good guys. Good job. Nice fuel curve too by the way!

 

Nice numbers. Very impressive. However, the 2.6 only made 8 more whp than the 2.8 pulley? You said 266 whp with 2.8 e/h. Yet the 2.6 has i/e/h yet it only netted 8 more hp? I guess that shows that the supercharger starts to lose its efficiency. It's turbo time

 

nice man

 

So will these tunes be for sale? or do we have to come to you which for me is virtually impossible.

 

Great numbers! I can't wait to get mine up on the dyno to see what im putting down!

 

WTF?!? I just saw the dyno on there website. Why does the a/f lean out at 5800<ish>rpm? Where did you guys set C.O.T. and PP?

 

WHich one are you talking about. That is quite a wierd little 'dip' I guess in the top graph.

 

the 42LB injector dyno. the balt is on the left and dyno info is directly to the right

 

Look at the torque I'll over lay them for you to see how it changes the power band .

 

Yes tunes are availible mail order .

 

C.O.T and PP why ? They are there for a reason . Spike is not there on any other runs we attributed it to the w/b going in a bung on the resonator

 

Hey ludicristSS, what was the duty cycle of the 42lb injectors from 5,500rpm on w/ the 2.8? Thanks.

 

im really considering taking my car up there with the mods i have now! the power band looks alot smoother on the 2.8 w/ 42 pound injectors, then the 2.6!

then when the time comes ill upgrade!

i too am wondering how maxxed are the injectors ont he 43 pounders?

 

They where no more then 78-82% fine they did go 88-92% with the 2.7 over 6600 A/F would get up to 12.4-12.8 by 6800 and power would fall off 50lb injectors would work nice with a 2.7

 

no dude, alot of people have been spiking at the same spot. you all have something in common.

 

Nope just that run on that car Non of the others did it 3 that day with 42lb 2 with 2.8 and one with 2.7

 

man what a coincidence..... i thought u mightve had a solution

 

if i dont have a wideband bung can u still tune it? !!!!! i really am interested! if i could get 10 more hp and 10 more tq and my rpms upped 200 rpms! ide be closer to 12's!

 

Thanks for the info man, very helpful!

 

Thanks for getting the dyno sheets up. And anyone who is considering getting a tune from Tune Time, I would highly recommend them, they definatly know what they're doing and have some nice "goodies" in the works for our cars.

 

i looked but I cant look too often cus of where I am 'sneaky sneaky' so uh how much does a tune cost?

 

Isn't the tune going a little lean for the 2.6 pulley? Is there any knock and pulled timing when the AFRs reach the 13+ mark around 5200rpms, especially if the IAT2 temps are getting high? It seems like there's more power to be pulled out of the tune somewhere.

Nice numbers either way though

 

i thought the same too