Installed crawford headers and tuned, no gains
09-04-2007, 12:51 PM
#41
Here's a link that shows a 8whp gain on a auto with no tuning stock ecu...
https://my350z.com/forum/showthread....=crawford+dyno
https://my350z.com/forum/showthread....=crawford+dyno
Last edited by 97supratt; 09-04-2007 at 12:53 PM.
09-05-2007, 08:11 AM
#43
On my personal car with all crawford parts and a tune I made 263 at the wheels. With the milder cams, i moved up to 275. That is only peak numbers tho. The most impressive part is comparing the redline numbers where there was a much larger jump in power.
Sorry to see your results. I would be right there with you on being suspect of something, but I can tell you that the headers are solid performers.
Sorry to see your results. I would be right there with you on being suspect of something, but I can tell you that the headers are solid performers.
09-06-2007, 10:07 PM
#44
Originally Posted by VandyZ
On my personal car with all crawford parts and a tune I made 263 at the wheels. With the milder cams, i moved up to 275. That is only peak numbers tho. The most impressive part is comparing the redline numbers where there was a much larger jump in power.
Sorry to see your results. I would be right there with you on being suspect of something, but I can tell you that the headers are solid performers.
Sorry to see your results. I would be right there with you on being suspect of something, but I can tell you that the headers are solid performers.
09-20-2007, 09:30 PM
#45
Update: I have replaced my cats with a brand new set of Crawford high-flow cats, and my exhaust with a Fujitsubo titanium exhaust, with a Megan y-pipe. So I am pretty close to your setup, VandyZ. I think the difference between your car and mine are: Big Bore TB, clutch/flywheel, and you have the TS ECU, I have the Uprev reflash.
The new exhaust is awesome sounding, but without doing another dyno, I can't tell if it's faster or not. If I get a chance, I'll try to do some more tuning with Jared on the dyno at Uprev. Any recommendations for tuning Air/Fuel and timing for best gains with Crawford headers are appreciated.
So to reiterate, here is my full set of engine mods:
JWT popcharger intake
Crawford V5 plenum
Crawford headers, jethot coated
Crawford high-flow cats (replacing gutted ones)
Megan y-pipe
Fujitsubo titanium exhaust
Uprev reflash & tuning
The new exhaust is awesome sounding, but without doing another dyno, I can't tell if it's faster or not. If I get a chance, I'll try to do some more tuning with Jared on the dyno at Uprev. Any recommendations for tuning Air/Fuel and timing for best gains with Crawford headers are appreciated.
So to reiterate, here is my full set of engine mods:
JWT popcharger intake
Crawford V5 plenum
Crawford headers, jethot coated
Crawford high-flow cats (replacing gutted ones)
Megan y-pipe
Fujitsubo titanium exhaust
Uprev reflash & tuning
09-21-2007, 04:02 PM
#46
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I definatley suggest waiting for cams. Mild to semi-aggressive cams can push 280whp on that setup. JWT S2 (i think those are the ones that fit the 287VQ) are would be a good chocie. I want headers and cams next 
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