nathantheman

how many psi does everyone's aftermarket boost guage read when their stock one is up to zero on a series four TII? anybody paid attention? thanks

nathantheman

i was just wondering what it should be, because i heard that the stock boost guage is = to what the ecu sees.

NZConvertible

Zero on the stock gauge should show zero on an aftermarket gauge too.

Poseur

doesnt the stock gauge rest way below zero?

Rpeck

Too close to tell a diference, I spliced off the boost sensor line.

fstrnyou

as did I.

mine is like 1-2 psi probably. closer to 1 i guess. i know exactly what you're talking about.

nathantheman

so if mine say 5 psi on my autometer when im at zero on the stocker its probly not telling my ecu the correct information? what are you guys at when your idleing?

fstrnyou

i'm around 15 inHg at idle at 1200rpm. it would be more vac if mine idled lower. the factory boost guage reads up to about 8 inHg.

nathantheman

any ideas about why my autometer reads so much higher than my stock guage?, i don't think this can be good.

fstrnyou

also, does your aftermarket boost guage stall at 5.5psi? if it does, what does your factory guage say at the same time? maybe the factory guage is slow.

Rpeck

do you have a FCD? those seem to fug up the stock boost gauge big time I have heard. If you don't have a FCD I would check your boost sensor out via the FSm to make sure it's okay. Cause if it's not retarding your timing right you could be in for trouble.

wheredo you have your Autometer plumbed in at? And I don't want to start a **** contest here, but I have heard a few negative things about autometer boost gauges in the past ... but if you have it hooked up right, my guess is you stocker is off... I doubt an autometer would be off by as much as 5PSI.

nathantheman

WHAT! f*ck you man autometers are the BOMB!(flames) haha just kidding, i do have a fuel cut defencer, and i get to 6.5 psi max on the pileofcrapometer. the stock reads about half way at 6.5 psi

nathantheman

i plumbed it in to the boost sensor vacuum line

Rpeck

I don't have a FCD, but I have read many times that they pretty much make the stock gauge useless. I am willing to bet thats the case here, but I would wait for someone else with a FCD to chime in before you worry too much.


I'm off to chase some muff, G luck to ya ..


-Robert

nathantheman

ahh you make me jealous, my muff is on vacaton in hawaii. **** son