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Performance, Brainstorming & Tuning Talk about modifications, or anything else associated with performance enhancements. Have a new idea for performance/reliability? Post it here. No idea is stupid! (please use Detailing and Appearance for cosmetic ideas)

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Old 03-13-2004, 11:44 PM   #11
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Old 03-13-2004, 11:48 PM   #12
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i have found that an A/F ratio around 10.5-10.7 works best for me. the best way is to read the plugs. what boost pressures are you running , maybe the boost contrl sol. is limiting you boost pressures
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Old 03-13-2004, 11:55 PM   #13
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Quote:
Originally Posted by Rogue
It looks to me like the PCM wont advance the timing beyond 15 at WOT.

You're right. 15 degrees is all the stock PCM is going to give you at WOT, no matter what you do. Every once in a while you may see 16 or maybe even 17 degrees, but it is VERY RARE. 15 is usually all you will see. If you don't get KR on pump gas, you should see 15 degrees of timing as well. Race gas only helps give you more timing if you are getting KR on pump gas. If you don't get KR on pump gas, the race gas is actually going to hurt you because it burns slower. This is why we added adjustable timing to the GTP when we got the PCM programmed, because the 15 degrees of timing it was getting with the DHP PCM was rediculous. Everyone else running that fast has 22+ degrees. My suggestion is get a DHP with adjustable timing programmed into it, and you should see some pretty good results.

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Old 03-13-2004, 11:58 PM   #14
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Quote:
Originally Posted by jeffrey10x2
what boost pressures are you running
10-11lb before headers with the 3.4
8lb with the 3.4 after headers and back to 10.X with the 3.2
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Old 03-13-2004, 11:59 PM   #15
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Quote:
Originally Posted by dbtk2
Quote:
Originally Posted by Rogue
It looks to me like the PCM wont advance the timing beyond 15 at WOT.

You're right. 15 degrees is all the stock PCM is going to give you at WOT, no matter what you do
%@!$#&%$%#!!!!
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Old 03-14-2004, 12:02 AM   #16
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You did notice that your making 399.5lb.ft of torque though, right??? Can't complain about that, although I'm sure your tranny will.

Shawn
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Old 03-14-2004, 12:03 AM   #17
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Quote:
Originally Posted by dbtk2
You did notice that your making 399.5lb.ft of torque though, right??? Can't complain about that, although I'm sure your tranny will.

Shawn
Yea, thats all i need now, a blown tranny and no HP to show for it
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Old 03-14-2004, 12:09 AM   #18
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Quote:
Originally Posted by Rogue
Yea, thats all i need now, a blown tranny and no HP to show for it
Yeah, but it has enough torque to embarass mildly modded LS1'*. Not to mention Supercharged Mustang Cobra'*! (you know, the V8 ones with the M112'*!)

Shawn
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Old 03-14-2004, 12:11 AM   #19
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You dont 'want HP you want torque

That'* massive torque there dood. More then our Friggun 350 Yukon...

That PCM is saying NO to all the power. It'* definetly holding you back. I'm curious to see how much you can free up when you get a solution for it.
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Old 03-14-2004, 01:10 PM   #20
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Quote:
You did notice that your making 399.5lb.ft of torque though, right???
I couldn't see anything over 320 ft-lbs

Still damn good though.

Funny that even after my header upgrade I haven't noticed any difference in boost at 10.psi with the 3.4" pulley. I would have expected it to drop a couple of psi.

Gauging my hp increases since stock 240 bhp, I am estimating 300 bhp. At the wheels, I would expect it to be around 240 whp, so 247 is very good.

How'* the calibration on the dyno since the last time you were there, or is it a different shop?

At least you got a boost in torque and that'* what a street driven car needs.
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