low vacuum

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02-23-2007, 11:27 AM

#21

Joel5.0

5th Gear Member

Join Date: Jan 2006

Location: Puerto Rico

Posts: 3,926

RE: low vacuum

Quote:

ORIGINAL: samseed101

Quote:

ORIGINAL: droptop306

I have the timing set at 10 degrees. I am at a loss, I paid a performance shop to install this and now dont know what to do

In all honesty, if you paid them to install this and it's not working properly, then it sounds like they owe you some work. Maybe they screwed up the installation of the camshaft...always a possibility.

X2........however, don't concentrate on a tune intil you get it fixed.....again, a SN95, even with the load based EEC-IV and a Stg1 cam, should make more than 8" Hg. vacuum @idle....using the same computer analogy, if you tune on a bad calibrated/setup engine....the results will follow the GIGO principle....Garbage In Garbage Out.....

02-23-2007, 11:37 AM

#22

droptop306

1st Gear Member

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Join Date: Jan 2007

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Posts: 112

RE: low vacuum

The performance shop said that this is normal when running a supercharger and a camshaft. The only thing that it seems to affect is the braking. Would it matter that I am not running the boost master due to running a 6al box and they both cant be ran together. Guys I am so frustrated that I am ready to sell this @#$%ing thing and just buy a new GT500. I have over 15,000 in the motor alone with installation and am ready to give up. I ordered the motor as a crate motor.

02-23-2007, 11:44 AM

#23

droptop306

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Posts: 112

RE: low vacuum

Any other suggestions?

02-23-2007, 12:01 PM

#24

samseed101

6th Gear Member

Join Date: Jun 2006

Location: Maine

Posts: 5,693

RE: low vacuum

Did you try plugging the vacuum line to the brake booster yet? I may have missed it, but I didn't see if you had tried that or not.

8" is definately not normal for a supercharged engine with a camshaft. I have a supercharged mustang with a steeda camshaft and I'm pulling about 15 inches.