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2.0L LSJ Performance Tech 205hp Supercharged SS tuner version. 200 lb-ft of torque
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Old 06-16-2005, 05:41 PM   #1
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DYnoed my car- 102 degrees outside

well i was goin to take some pics of my car by the lake and i came up on a camaro SS i played with him for a min till i knew where he was goin- RPM motorsports in Lewisville
I walked in and was like you guys touch ecotecs , they tried to tell me to go to a import tuning place and told me that shop uses their dyno, i was like you guys got a dyno? lets do it

so the best run with 102 outside temps on 93 octane (only)
was 218.4 hp/ 186.6 tq to the wheels
*edit the dyno sheet posted is not the best run of the bunch*

Click the image to open in full size.

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the air/fuel goes to 10.4 @ 5K, which iss pig rich
10.34 @ 4300 rpm to be exact
they said a lot of power could be had by leaning it out a bit

only time will tell but i am gonna dyno after any mods or changes
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Old 06-16-2005, 05:50 PM   #2
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Where is your dyno sheet?

I never got to 10.4 to 1 but I got to 12.0 to 1 @ 5-6k rpm range.
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Old 06-16-2005, 05:59 PM   #3
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im looking at it wishing i owned a scanner, lol, my GF has 1 and ill get it scanned this weekend but all the guys were guessing it would have 180 to the wheels and i told them i had seen your dyno sheet at 230 in 4th

BTW all pulls were 4th gear pulls on the dyno jet
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Old 06-16-2005, 06:22 PM   #4
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I'd bet money that it's real rich right now because of the heat. It's the ECU's way of keeping detonation under control.
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Old 06-16-2005, 06:41 PM   #5
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Quote:
Originally Posted by mchat
I'd bet money that it's real rich right now because of the heat. It's the ECU's way of keeping detonation under control.
nice results
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Old 06-16-2005, 08:01 PM   #6
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Quote:
Originally Posted by JapEatr
im looking at it wishing i owned a scanner, lol, my GF has 1 and ill get it scanned this weekend but all the guys were guessing it would have 180 to the wheels and i told them i had seen your dyno sheet at 230 in 4th

BTW all pulls were 4th gear pulls on the dyno jet

Take a digital picture with the macro setting on your camera !

I used a scanner BTW...
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Old 06-16-2005, 08:43 PM   #7
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good idea ill try that when i get back from the bar
im celebrating GMs overated claims
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Old 06-17-2005, 12:53 PM   #8
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seriously, you guys are making me want one of these more and more over a ls1 z28, geez. its gonna be hard when it comes to crunch time. lets get some slips here guys. comon. i wanna see consistant mid 14's. comon lets do it. , like rob schnieder allways says. "you can f*'n do it!"
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Old 06-17-2005, 09:11 PM   #9
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well here is the 2nd run, the last was the better of the three
the other is being scanned tom.

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Old 06-17-2005, 10:46 PM   #10
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God that torque curve is a thing of beauty.



Also you did your dyno's in 3rd gear?
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Old 06-18-2005, 12:02 AM   #11
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no 3rd gear pulls but yes flat torque curves are the greatest
cant wait
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Old 06-20-2005, 01:41 AM   #12
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wow, 216hp in 102 degree heat? Well, it was 113 degrees today..See what our cars put out in that heat!!
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Old 06-20-2005, 10:17 AM   #13
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Quote:
Originally Posted by phxSS
wow, 216hp in 102 degree heat? Well, it was 113 degrees today..See what our cars put out in that heat!!
An SS in Phoenix, cool.

Got that thing broke in yet?
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Old 06-20-2005, 01:30 PM   #14
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i do 1779 miles
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Old 06-21-2005, 08:43 PM   #15
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mchat..not yet. i only have 180 miles on it right now. It's so haot here, I don't think even the intercooler is doing much to keep my air dense. It was 118 today. You may see me on the road sometime. I work on the AFB. i just saw another red SS today on the 101 near Bell rd.

You have an SS?
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Old 06-21-2005, 09:28 PM   #16
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Not to nit pick but the date on that dyno sheet is from Nov last year.
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Old 06-22-2005, 03:53 AM   #17
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it also says 4 am is the time.. most shops arent generally open at 4am I thought hehe.

I guess we could assume one of two different things:
A. the date+time on their computer was out of wack
B. it's not the correct sheet

my vote goes for "A" , since it seems realistic numbers.
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Old 06-22-2005, 10:53 AM   #18
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Quote:
Originally Posted by phxSS
mchat..not yet. i only have 180 miles on it right now. It's so haot here, I don't think even the intercooler is doing much to keep my air dense. It was 118 today. You may see me on the road sometime. I work on the AFB. i just saw another red SS today on the 101 near Bell rd.

You have an SS?
Nope SRT-4. I actually want to see an SS make some runs out at Speedworld tho. Sounds like by the time you get it broke in, the weather will be cooling down. Ought to be just about right.

I've been looking while I'm out driving, but the only Cobalt's I've seen are not the SS. What color is yours? I live fairly close to Luke (83rd Ave & Camelback) so if you see a Black SRT-4 like this:

http://www.azchatfield.net/RR/Pics/2_050426190748a.jpg

That's me, flash your lights or wave or something (I've blacked out the intercooler & the windows are tinted now, so it's a little different than that pic.)

I will probably be hitting the track July 7th (Thursday Night). Providing I get my new turbo on and get some dyno time to tune it up. Let me know if you're interested in hitting the track.

BTW, with the heat and relatively dry air we have in Phoenix (along with the crappy 91oct gas) Water Injection might be something for you to look into.
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Old 06-22-2005, 12:40 PM   #19
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holy huge intercooler batman. that thing is massive. but it sure does look mighty pretty. i wrecken.

yeah definatly look into the water injection i've heard numerous good things bout it.
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Old 06-22-2005, 01:04 PM   #20
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lol, i just noticed the date and the fact that it doesnt have the yr make model on their either

well i really had it dynoed, proof is in the pics

but i wish the power curves werent as jagged but that is due to it hoggin on the gas
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Old 06-22-2005, 01:54 PM   #21
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Quote:
Originally Posted by Eddie
holy huge intercooler batman. that thing is massive. but it sure does look mighty pretty. i wrecken.

yeah definatly look into the water injection i've heard numerous good things bout it.
The intercooler is 4.5" thick too. Overkill for the stock turbo, but the Stock Turbo's days remaining on my car is in the single digits... I've got a GT30 coming from AGP Turbo very soon. With the WI I'm going to shoot for 450whp on pump gas...

Another thing about WI is that for "close" to stock boost levels you could probably actually get away with running 89 or even 87 octane around town. If you drive as much as I do, with current gas prices a decent WI system would pay for itself within a year.
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Old 06-22-2005, 02:12 PM   #22
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Quote:
Originally Posted by JapEatr
but i wish the power curves werent as jagged but that is due to it hoggin on the gas
You should see stock SRT-4 dyno charts .


Here's one of mine, obviously my car's modified a bit:

http://www.azchatfield.net/miscpics/...o_20050413.jpg
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Old 06-27-2005, 01:06 PM   #23
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Quote:
Originally Posted by phxSS
wow, 216hp in 102 degree heat? Well, it was 113 degrees today..See what our cars put out in that heat!!
The numbers shown are SAE, does that not mean they are corrected for the conditions? They take into account the heat and compensate.

To the original poster, any idea on the correction factor that day?
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Old 06-27-2005, 01:24 PM   #24
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no correction for the heat, in the shop from expireience on a 100 degree texas day it gets about 110 degrees in the shop around all the motors and doors
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Old 06-27-2005, 05:39 PM   #25
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Quote:
Originally Posted by JapEatr
no correction for the heat, in the shop from expireience on a 100 degree texas day it gets about 110 degrees in the shop around all the motors and doors
So you're telling me those numbers are absolute and not at all corrected?

This is from a magazine article on "dynojet" dynos.

SAE j1349 correction:
29.23 in/hg.
77 degree temp
0 percent humidity

Standard correction:
29.92 in/hg.
68 degree temp
0 percent humidity
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Old 06-27-2005, 05:39 PM
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