32 Boost Doesnt Seem To Be Right

[kingy_06]

hey, i have a R32 gtst type M! The mods are apexi pod filter and and 3" cat back exhaust (i dont know this for sure though when look under car it is obvious that from the cat back the exhaust is larger then cat to turbo!) I just installed a boost gauge and it is reading 10-11PSI in all gears and holds this! My car does not have a boost controller! Is this boost right as i thought it was a bit high! Do type M run a bigger turbo or more boost? Any help would be great!

Cheers,

Tyson

[R31Nismoid]

Yes its right

the stock actuator on an R32 is 10psi

cheers

[kingy_06]

thanks mate, did some searching though eveyone has there own say on 32 boost.....it stock 7PSI....stock 10PSI

One more questions: I have done heaps search on 32 boost and need some advice! I am going to get the rest of my exhaust done so (dump and front and high flow cat) so it will be a full 3" system...the car will prob run about 11PSI then! Should i get a boost controller and up the boost to 12PSI - dont want to go any higher than this, and get a front mount! or buy a 33 or 34 turbo to get more boost?

Cheers

[Cubes]

With a full exhaust & std airbox, std filter mine ran 11psi.

Before exhaust I remember it was ~9.

[xRHETTx]

Yeah stock R32 gtst = 10psi

stock r33 gts25t = 7psi

My r32 gtst runs 11 psi with full exhaust and pod filter (almost 0.8 bar)

Rhett

[123456]

Upping it to 12 won't hurt but the standard turbo gets boring pretty quickly, so buy a cheap boost controller, and crank the psi to 12 after you've put the exhaust on, and run around on that while you save for a better turbo. Standard rb20 turbo @ 12 psi is preeety boring

[Cubes]

Yep 12psi is pretty boaring through the rb20's.

I pushed mine to 1bar without issues for a few years before the new motor was dropped in. Old motor was 100% still fine as was the turbo when it came out.

[Josh_r32]

Yep 12psi is pretty boaring through the rb20's.

I pushed mine to 1bar without issues for a few years before the new motor was dropped in. Old motor was 100% still fine as was the turbo when it came out.

wat mods did you have when you ran it on 1 bar? did you still have stock internals?

also on the stock boost gague in a r32 gtst type-m, the -7 and +7 on the boost gague

does that refur to psi or does +7 mean 0.7 bar or 7pi pr wat? if thry run 10psi stock, why does

the gague only go up to 7?

Edited November 21, 2006 by Josh_r32

[Cubes]

The car just had a full exhaust, fmic and had boost wound up on the dyno. AFR's showed they were leaning out so a new fuel pump went in. It was then advanced 2 degree's and wasn't pinging on the dyno even though temps were 30degree's.

On the stock guage.. Mine was a little out, with the needle almost ready to topple over the +7 top line that was 15psi.

Have a look at the std guage it tells you the units of measurement used.

+7 is supposed to be around 13.5psi from memory. As I said mine was out a little.

[thrtytwo]

+7 is 7cm(2) hg which is 70mm hg which is probably about 10psi seeing as yesterday i found 8.2cm hg to be around 11 psi

[123456]

Nah its 13.5-14 somewhere there, go google and check out the converters

[Cubes]

The stock guage is measured in mmhg x 100 so:

800mmhg is 15.47psi

700mmhg is 13.54psi <<< Max guage value

600mmhg is 11.6psi

350mmhg is 6.77psi

[kingy_06]

thanks for all the replies! I have to agree, atm the stock rb20 turbo is boring! I will get my exhaust done and up the boost to 12 PSI Should i get an intercooelr after this? (will it give more power) or look at a 33 or 34 turbo?

[thrtytwo]

thanks for all the replies! I have to agree, atm the stock rb20 turbo is boring! I will get my exhaust done and up the boost to 12 PSI Should i get an intercooelr after this? (will it give more power) or look at a 33 or 34 turbo?

im not an expert so im not 100% sur ebut i think any increase in boost should warrant a FMIC, even if it isnt totally needed it looks cool and is usefull if you want to go further later on, lots of ppl use turbos from 33's, stock or highflowed, never heard of anyone using from a 34 but dunno if u cant or what...would of thought it weas same turbo as 33, probably just more expensive...

[Cubes]

I ran 12.5psi through mine with the stock ic.

Car was quite a good little package back then, went quite well.