06-20-2006, 02:49 PM | #11 | |
日本語
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Re: 03 cobra boost issue
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I have no idea what the freak is wrong with this thing |
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06-20-2006, 03:11 PM | #12 | |
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Re: 03 cobra boost issue
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It has an aftermarket boost gauge. Car had 6k miles when I bought it, now has 13k. Last full boost run before the accident saw 12psi at mid 80s in DC. I can see the weather accounting for some of the drop, but I'm now leaning towards the bypass valve. What's the procedure for testing one? Can't seem to find it. Thanks for the help, David. |
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06-20-2006, 06:23 PM | #13 |
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Re: 03 cobra boost issue
check to make sure that your intercooler fluid is circulating with the car running which might be the bubbling you are seeing. Warm weather will cause some issues, but not 7-8psi of loss. I would expect 2-3 at most in worst worst conditions.
The tune has nothing to do with boost, boost is solely a function of the pulley ratio. 2nd -- check the small vacuum lines coming off the side of the intake towards the TB area, if that is unhooked it will cause issues as well. check all vacuum lines running to and off the boost bypass valve. When you blip the throttle you should be able to see the arm move on the valve. you can also pull the vacuum line off and it will close the bypass valve, you will also hear an audible change in pitch/sound of the blower. If this happens the valve is working fine. Easy way to check for belt slip is look for chunks under the pulley snout or alot of dust on the crossover coolant pipe. Check to see where the tensioner mark is setting in the range indicator, it will be below the stock intercooler resevoir. It should be in the middle, If it loose and out of the range, you wont have shit for boost Most importantly how does car feel? Could be a gauge malfunction or simply a pinched vaccum line which is very common especially if you use the shitty nylon tube that comes with the kits. Trace the line all the way to the source which most poeple have the lines tapped behind the glovebox which is very easy to drop down. I have had this happen to me before.
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03 Cobra -- Sonic Blue 2.4 KB @ 23psi, IRS, Bolt On's 10.45@134 |
06-20-2006, 07:17 PM | #14 | |
3v's are slow
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Re: 03 cobra boost issue
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06-20-2006, 07:56 PM | #15 | |
Daddy x4 ...we're done
Join Date: Dec 2004
Location: Oxford, AL
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Re: 03 cobra boost issue
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If he is only seeing 8psi, that car should feel like utter dog shit compared to what he was used to. |
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06-20-2006, 08:05 PM | #16 | |
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Re: 03 cobra boost issue
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If the car was worked on, airbag went off, they may of kinked some stuff up somewhere, I think its an indication issue, or something really easy. QWKSNAKE: heat hurts alot, im sure you know that. When I lived in alaska and in the fall before it would snow I would see 16psi in 40 degree weather, in the dead of summer when I moved to FL I barely saw 13psi, kinda freaky, its been nasty here in Crestview, was 99 today, car feels like ass. |
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06-21-2006, 07:35 AM | #17 | |
日本語
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Re: 03 cobra boost issue
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I bet its the flux capacitor |
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06-21-2006, 12:11 PM | #18 | |
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Re: 03 cobra boost issue
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Don't forget it might also be the time circuits. |
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06-21-2006, 03:31 PM | #19 |
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Re: 03 cobra boost issue
And the verdict is: kinked boost gauge line. He's in the process of fixing it now. Now if only he can figure a way to outrun my talon he'll be all set
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08 cbr 1000 73 mach 1 |
06-21-2006, 07:50 PM | #20 | |
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Re: 03 cobra boost issue
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I'd run you in my Talon if I still had it.... FP Green @ 29psi in a stripper 1g awd moves on out. Glad he found the culprit |
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