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Discussion Starter · #1 ·
Well I've had the '02 Z06 to the track 4 times now. Power mods are 160 thermo with Davinci fan controller (didn't give any power on the dyno) and NGK TR6 plug gapped at .060" and GMPP plug wires (didn't give any power on the dyno either), Halltech TBCB kit (didn't give any power on the dyno) (well all the ones that didn't give any power on the dyno actually gave between 1-3 hp, but wasn't a noticeable difference and that could have been from the aditional miles on the car.) In fact, we dynoed the car at different coolant temps. They all were within .01 at 170*, 180*, 190*, 200*, and 210*. But once you hit 220* it lost 10 hp.

I have since installed the Halltech TRIC intake.

Best ET & mph bone stock was 12.638 @ 114.212 with 2.127 60 ft

Best ET & MPH with above 1-3 hp gain mods was 12.475 @ 113.454 with 1.990 60 ft

Best MPH with TRIC was 12.440 @ 118.372 with 2.171 short time

Best ET with TRIC was 12.361 @ 117.007 with 2.099 short time

The track is not prepped at all for Wed night races and there are 275 cars that run and at least 250 of them are on street tires which we all know tears the track up. I'm still wondering how to get these tires to hook for that 1.8x short time and my 11.99-12.1 ET. But it seems that the better I hook, the lower my trap speed is. The more I spin on the line, the better my trap speed. And this is WAY more obvious in this car, then it was in my Z-28.

As for my dyno numbers...

Bone stock had a best of 342.8 rwhp and 329.7 ft lbs AF = 11.5:1
With above mods best of 344.3 rwhp and 330.7 ft lbs AF = 10.5:1
With TRIC best of 355.5 rwhp and 348.2 ft lbs AF = 10:1
 

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ZO SIC, very interesting post. Your latest dyno numbers are very close to mine - and I was running 93 octane. Were you running that lousy Cali 91 stuff? I think we both woulda made at least 10 more rear wheel on one of those "Texas dynos"! :lol:
 

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Discussion Starter · #5 ·
BLEUBYU:

Yes, I was on Cali crap 91 gas. Each time I have dynoed the last dyno shows a bit of knock retard, but the others are a bit clean. We all know that the LSx engine controls will pull timing out and keep it out once they sense knock and only give full timing back once the fuel level has been raised. I should try dynoing on some 91 cali gas mixed with 100 octane 76 gas. I have a sheet telling me how to mix it. I'd mix it to get 93.5 octane I think.

fCalmes:

I'll try to get my time slips and dyno sheets scanned so I can send them in... I'm still not happy with the low HP and TQ numbers and slow ET's though... I think I'll try race gas next time to give me a fair comparison...
 

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ZO SIC, I am not sure why you think you have low power and torque figures, given the minimal mods you have made to-date. Right now you are at a bit over 418 crank h/p and 409.6 ft/lb of crank torque - notably above the factory ratings of 405/400 - achieved on 91 Octane. BTW, my slightly higher numbers were run on 93 octane and I still had some timing retard, so I would shoot for 94 octane if I were you.

:D
 

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Discussion Starter · #7 ·
Well there is a guy on this board that has a BONE STOCK '01 with 800 miles putting out nearly the same as me. And I know how to drive a car very well and I'm still not running what others are running 12.1's etc. But each time I go to the track it runs .1 faster so I just need to go more :)

I'm still thrilled with the car... I just thought I'd get more HP and more so TQ out of it.

I'll shoot for 94 octane for the next dyno test then :)
 
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