VWaddict

...when you "mat" the gas pedal and the boost builds, does the tacho-mounted boost needle go ALL the way to the right, or just PART of the way to the right?

My car's been chipped/modded since long before I bought it, so I'm just curious...

Keith

OriginalSterm

if i remember correctly, it should hit about 0.8 bar over ambient (roughly 1 bar). but the stock gauge isn't always calibrated after all these years.

reno808

I know mine goes all the way to the right but i do not trust it.

RKD in OKC

On my Stock 88 Turbo S the boost gauge NEVER went all the way to the right or 2 Bar. Even after going to Weltmester chips it would not peg the gauge.

special tool

That's right.
Stock boost is 10.75 ( little higher on the S), so it shouldn't - all things functioning correctly.

RKD in OKC

If memory serves me correctly, even after the Weltmeister chips and wastegate shim it would only boost to 1.8 on the dash max.

Mike1982

Hmm, that is interesting. Ever since I installed an aftermarket guage I don't think I have ever looked at in on boost since then, so a little over 3 years. I might have to check that later, when I get my car back together. I THINK, my guage would go to about 2 bar with my upgrades and running 15/16psi but can't say for sure. Before any upgrades I wouldn't go to 2 bar on the guage, only like 1.7 bar-ish.

2bridges

my stock 86 would come very near 1 bar boost (2 bar on guage)

944CS

stock is .75 bar +/- 10%

reno808

right now i am only boosting 10psi and goes all the way to the right

mj951

my '89 with weltmeister chips pegged the stock gauge. i have since installed a vdo aftermarket gauge and get between about 16 psi of boost on the same chip set at wot.

streckfu's

The stock boost gauge is not accurate. Do not trust it. That said....I would show ~.8bar boost on the stock gauge and actually show ~15psi on the Autometer with APE MAF/chips and 38mm Tial with test pipe.

That's just me and your mileage may vary.