Originally Posted by JWillis72 I agree and know that but I changed the sc pulley that should add 2-3psi and the impeller should add 15%. I can't imagine it not
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01-08-2016, 10:33 PM | #1096 (permalink) | |
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Quote:
Dyno'd @ 483rwhp and 378tq ... but it wasn't running quite right. Blew the motor 1st time down the 1/4 mile when I lifted past the traps [12.3 @116.9]
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. BB Last edited by Z&I; 01-08-2016 at 10:41 PM. |
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01-08-2016, 10:43 PM | #1097 (permalink) |
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Yeah its hard to believe that you would lose that much pressure from just the headers. No way. Is your BOV possibly letting some pressure out when it shouldn't? Obviously you didn't go to redline and would prob gain a pound or two more from 6500 rpm.
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01-08-2016, 11:06 PM | #1098 (permalink) | |
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I would think that if the increased flow from performance headers were causing your drop in boost, you would still be seeing pretty high numbers on the dyno even with the psi down. Just thinking out loud.. I am not an expert.
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01-08-2016, 11:41 PM | #1099 (permalink) |
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I have Stillen headers, high flow cats and catback exhaust and achieved 380 whp with just under 8 psi boost and a completely stock Stillen SC setup/kit , but with Uprev custom tune.
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01-09-2016, 01:01 PM | #1104 (permalink) | |
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Quote:
I made 7.7 psi at 5100rpm. Stock impeller with a 2.75" on blower pulley. I don't think the piping/routing is the problem.
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01-09-2016, 02:02 PM | #1105 (permalink) |
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The tune so far has only been F/A adjustments, some time today the tuner is going to send us a flash with some timing advance do see what it does.
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01-09-2016, 08:13 PM | #1108 (permalink) |
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The timing won't gain psi. There's something else. If it were me there I would 100% no doubt put the Bosch bpv on and throw down a pull. That new spring could easily be a problem.
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