stage 2 procharger

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03-11-2012, 02:50 PM

#11

CutterWolf

5th Gear Member

Join Date: Jun 2008

Location: Brandon, Florida

Posts: 2,616

Quote:

Originally Posted by 2005Redfire6

+1 I've been running 12 psi for a good bit as well and I know plenty of others with 100k+ miles 12 psi.... My only guess is Cutter thinks the OP has a V8.

Yep my bad, he had Roush for a forum name. He NEEDs to get a custom dyno tune ASAP

Last edited by CutterWolf; 03-11-2012 at 02:57 PM.

03-11-2012, 08:28 PM

#12

2005Redfire6

6th Gear Member

Join Date: Jul 2008

Location: Acworth, GA

Posts: 12,260

Quote:

Originally Posted by CutterWolf

Yep my bad, he had Roush for a forum name. He NEEDs to get a custom dyno tune ASAP

Also says 4.0 in his username

!

I agree thats kind of reckless running 12 psi on a 10 psi tune...

03-11-2012, 09:33 PM

#13

turtlevette

Join Date: Mar 2006

Location: marshfield, ma

Posts: 29

It's hard to believe 2 psi really makes that much difference. I used a bleed valve from a hardware store to jack up the boost on my 86 GN from 12 to 18 psi on the stock chip and never blew it up.

I assume the 4.0 has a knock sensor to retard timing..

03-11-2012, 11:01 PM

#14

2005Redfire6

6th Gear Member

Join Date: Jul 2008

Location: Acworth, GA

Posts: 12,260

Quote:

Originally Posted by turtlevette

Maybe not much difference but that can't be good for the motor because the A/F is tuned for 10 psi and now hes running 12 psi therefor probably really lean due to the car/fuel being tuned for 10psi...