when the car is shut off. my boost sits at 1.5psi.. so when im in WOT and i see like 10psi.. do i just subtract 1.5psi from it? i just recently installed a midpipe .. actually i did last night.. and im getting boost creep. i haven't installed a restrictor plate on it yet.. i might do it this weekend... till then i'll drive it slow.

 

gauge is mis-calibrated...I wouldn't trust any number it reads, get a new one.


careful with the midpipe

 

Or, you could calibrate it against a known accurate gauge, making sure that the readings are repeatable. Most gauges can be reset to get zero at an actual zero pressure by removing the pointer from its pin, and replacing it in the correct position.

 

so should i just try and zero the gauge or just get another boost gauge..?

 

If it were me, I'd try to re-zero it (what do you have to lose?), but you still need to calibrate it to make sure it reads close to actual pressure at pressures or vacuums away from zero. If you have problems, or still don't like the results, then get another guge.

 

If the gauge never sat at zero, send it back to where ever you bought it for a replacement.

 

Correct. I assumed that he'd had it for a while, and it was not on warrantee...

 

It wouldn't happen to be a Defi mechanical boost gauge, would it?

 

No problem. I wasn't trying to imply that recalibrating it was a bad thing.

 

its an autometer boost gauge

 

as far as the midpipe shoudl i put the stock cat back on the car? or buy a high flow cat?

 

^stock cat until it dies

 

anymore votes for stock cat or midpipe?

 

Stocker.

 

wow... I was thinking the same thing. I JUST hung up with Rx7store to try to get my replacement Defi Gauge. I'm not going to know what to do when I finally have a gauge again.

 

i installed the midpipe with chuck (cewrx7 ) something like that.... its his old midpipe.. and he's done somethings to the PFC for fuel.. and he gave me some restrictor plates to put in.. should i go ahead put the stock cat back on? and if i do what about the adjustments that he put on my pfc.. i dont know what he did..