jeredan2003

After installing the intercooler I am having some questions...Am I supposed to lose 3-4lbs of boost? Others told me like maybe 1lb, but I took it to redline today just to see how much boost I was getting and I only saw 5psi. I am on the 8psi pulley and normally saw 9psi...Pretty sure I dont have a boost leak anywhere, it idles and runs fine. Also how will my tune be affected by this? I mean will it run rich because I am seeing less boost, or will it adjust itself according to the boost? I am on the 3.60 pulley right now,so do I need a 3.12 to see 10psi??

I know for sure that I need a bigger bypass valve. Its giving me alot of compressor surge if I rev above 2500-3000 rpms...How will this affect the car until I get a bigger one?

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2003 DSG GT 5-speed
Hellion 62mm and Flowmaster catback.....

My bonestock 2v engine had been through 2 years of NX 100 shot, 3 years running 8-12lbs vortech s-trim, got into boost daily while racing on the weekends, had 157,000 miles on it, and was running like new

MattJ

I would change the pulley and see what kind of difference it makes. it could rule out the boost leak, or confirm it.

there isnt a kink in your boost gauge line, is there?

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2001 Mustang GT Premium - Mineral Grey

jeredan2003

dont think theres a kink, but I havent checked....Ill go look in a few minutes....

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2003 DSG GT 5-speed
Hellion 62mm and Flowmaster catback.....

My bonestock 2v engine had been through 2 years of NX 100 shot, 3 years running 8-12lbs vortech s-trim, got into boost daily while racing on the weekends, had 157,000 miles on it, and was running like new

El Diablo

Maybe belt slippage?

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2001 PROCHARGED GT 401RWHP 416RWTQ @ 9.5#'s BOOST

WaterDR

Adding an inter-cooler means lower temps. Lower temps means less pressure, right. So, if I am not mistaken, I think you should see less boost.

You should swap pullies now and you need a tune. Adding colder air is a different ball game. I am no expert, but I think this merrits some consideration.

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jeredan2003

well I didnt think that lower temps is the cause for less boost but it could be. I know that colder air will lean out the a/f ratio because theres more oxygen, but if im only seeing 5psi then I think that would make it run rich. Going to order the bypass valve soon and the pulley so I can get it tuned...after i check for boost leaks

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2003 DSG GT 5-speed
Hellion 62mm and Flowmaster catback.....

My bonestock 2v engine had been through 2 years of NX 100 shot, 3 years running 8-12lbs vortech s-trim, got into boost daily while racing on the weekends, had 157,000 miles on it, and was running like new

spike_africa

you should see 1-2psi less in most cases because the intercooler causes a restriction thats where the boost loss comes from. You got to have a leak. I would think you should do ruffly 7psi with that pulley. If you got 9psi before then yeah its low.

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Dustin

2002 GT Mustang 5-Speed
Drag Radials,Sprayed,Powershifted


WOOO HOOOO!

White04GT

did you ever find out what was wrong?

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2004 White GT
just another Procharged GT.
370rwhp/396rwtq 8#'s.

Gator boots, with the pimped out gucci suit.

jeredan2003

nope, but theres not a boost leak thats for sure. I checked all the couplers and theyre not leaking any air while the engine is running.....I havent had the $$$ to get everything bought and tuned yet. Im in the middle of saving for 4 months rent while im in school this fall, engine bottom end parts, and working on getting it lowered so its not looking like a 4x4 anymore...All will come in due time. Just alot of things going on....

__________________
2003 DSG GT 5-speed
Hellion 62mm and Flowmaster catback.....

My bonestock 2v engine had been through 2 years of NX 100 shot, 3 years running 8-12lbs vortech s-trim, got into boost daily while racing on the weekends, had 157,000 miles on it, and was running like new