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Old Jun 9, 2007 | 04:40 PM
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Figs
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Originally Posted by Cronic
I'm not sure if they are MAF or MAP controlled, but if it had that bad of a boost leak I think you would hear it and if MAF controlled, the car would run like ass.

The car ran fine, was just very slow. Probably a 16 second car. This thing hit 8psi and stayed there pretty steady. Didn't seem to fluctuate or appear that it wanted to go higher.
Negative. The SRT-4 stock comes with a factory boost leak already and it was on the hotside. I had it and I could not hear it, only way to hear it was by a boost leak test and mine was super loud which I didn't notice at idle or anything. I was told by a reputable guy that every SRT-4 he's worked on had this leak and it came that way from the factory. He is even DCX certified. I test drove an SRT-4 and it was boosting 17psi and pretty much holding it but it had an aftermarket wastegate. When I started the car I noticed vaccumm was at 14/15 and I said okay there must be a leak because my red SRT-4 is at 20 at idle sometimes 19 but mostly stays at 20. By the time I came back from test driving it, it was closer to 10 and wanted to stall. I pop the hood open and the intake pipe came off the intake box. That tells me it was probably already off or almost off before the the test drive (didn't bother checking under the hood first... my mistake). There probably is other leaks. During the test drive the car ran fine but felt like it wasn't pulling as stronge as it should because of the things I found but it felt good during the test drive. But this is my experience. Once boost leaks are fix these cars run strong. The problem is you need to ziptie lines and some add clamps to them so they don't pop off, they came like that out of the factory no zip-tied lines you can pull them right off. I've had intercooler pipes pop off on other cars I've owned so I know what a bad boost leak feels like. SRT-4's have a MAP sensor btw.

I say test for boost leaks, your not able to hear them with the car running. Also resetting the ECU might help as well. Is the car completely stock? Also where was the vaccumm at on idle? Did the needle sit on "0" on the boost gauge with the car off? The SRT-4 stock boost gauges tend to go bad, the needle sticks or breaks off, etc.

Last edited by WhiteFwdsm; Jun 9, 2007 at 04:55 PM.
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