I thought vacuum was supposed to be closer to 16-18?

 

That is just during idle with no load... if the car has load on it and I put it in nuetral it'll have 19-20

 

uh thats low... especially without cams.. i got one cam in and i idle at 850 vac is at 19-20...
50 psi or so fuel, so you have a 4 bar setup? You should make sure its pretty exact i hear the ecu is picky about that with 4 bar setups... when you installed the clutch, did you have the turbo on already? maybe you got a boost leak somewhere

 

two things: your fuel pressure is too high so you're probably running rich as hell, and you most likely have a vacuum, boost leak. This would explain the turbo spooling but you not going anywhere. Even with no load in neutral, you should still see 16-18in. of vacuum, pretty sure at least.

 

It's a 3 bar for some reason. I have S3 cams, clutch was installed after turbo was on. The vac has always read this and I haven't had any of these problems in thepast.

 

two things: your fuel pressure is too high so you're probably running rich as hell, and you most likely have a vacuum, boost leak. This would explain the turbo spooling but you not going anywhere. Even with no load in neutral, you should still see 16-18in. of vacuum, pretty sure at least.

What fuel pressure would you suggest running 40-45? and the vac has always been like that and never had a problem

 

dude your fuel is way too high it should be around 36

 

convert 3 bar to psi and that's what you need to run with the vacuum line disconnected to the fuel pressure regulator. It's roughly 44psi (1 bar is about 1 atm which is about 14.7 psi). Oh, don't turn up the boost, you're about at the limit of the 370s.

 

How do you figure? Just wondering because I was never told by anyone what to run and never found a post stating the required fuel psi's to run under 3bar and 4bar situations. I just figured 3 bar is 14*3 so thats like 40 something. If I run 36 my techtom will be reading lean all the time that is what iw as worried about but who knows how accurate that is.

 

I am running the 444cc injectors with 3 bar.... what do you think my max psi I can run on those is?
What do you mean with teh vac line disconnected to the fpr does it read diff on the inline fp gauge if it is hooked up?

 

my fault. it is around 44 psi i dont know why i was thinking 4 bar was 48... anyway is your ecu programmed for 444cc injectors?

 

I sure as hell hope it is, says 440cc injectors on the ecu and the receipt from jgy so I wouldn't doubt it... keep in mind that I've been running this setup for the last like 4 months with not many problems.

 

I am still learning about turbo stuff, but I know for certain that you must have a vacuum leak to have a reading at 12-13. It would make sense to about why you are loosing power...

 

Not sure what everyone is saying about leaks I will definately check it out but it's been reading that high ever since install and no problems.

 

I watched boost during all of this and it holds at 7psi

Any help appreciated.

You wrote on the title that boost cuts in and out but then you wrote it holds at 7psi so which is it? Do you mean you feel like the power cuts in and out?

 

yea, ur vaccum at idle should be 18-20in/hg unless you got some radical cams in there..

 

You wrote on the title that boost cuts in and out but then you wrote it holds at 7psi so which is it? Do you mean you feel like the power cuts in and out?

Feels like the power cuts in and out, I guess it always stays in boost...

 

When my timing was out the power kept coming and going even though the boost ws there.

 

Yeah check your timing and plug gap. What was the last thing you worked on or installed since this problem began?

 

Actually nothing and today my car was running ****ing awesome... weird hu? I even stomped some mustang gt tonight that thought he could take me .