Max Boost For Rb20det With R33 Turbo?

[Stunn-R]

i got a 33 turbo on my 32 with rb20det, external gate, screamer, fmic and exhaust,

running 1 bar atm and it seems to be fine, any less and its a slug, i was thinking about changing the springs to run 17ps (1.15bar)

ive run this much with my avcr and it seems fine, any experiences with this much boost?

[zebra]

May I ask why you have an external gate with a stock 33 turbo???

Its not going to matter what engine its on...the turbo will fail at 17psi and a few hard stabs at the throttle

[Stunn-R]

i reckon you can run more boost through a 33 turbs on a rb20 compared to a 25 zebra so im gonna have to disagree with you there buddy

rather than you talking poo anyone else got some experienceS?

[TTT]

Its not going to matter what engine its on...the turbo will fail at 17psi and a few hard stabs at the throttle

What a load of crap.

how do you figure that.

the turbo is now on a car that has 500cc less capacity and 0.5:1 less compression.

to produce 17 psi of air flow on the RB20 it spins at a different speed and creates different amount of heat than it would on an RB25.

having said that, I didn't go past 14psi on my RB20 with R33 turbo.

having now said that, since a hiflow from hypergear is now about $800, I wouldn't be too fussed if it popped.

[R31Nismoid]

ext gate on a stock turbo - i could think of better things to waste money on

But either way, 15-16psi is the absolute limit and the turbo wont last forever.

It's still ceramic, its still going to suffer from heat... which is the killer.

Then you add to the fact you are now spinning the shaft ever faster than RB25 owners (who's turbos generally die 12psi+)... its all asking for a turbo death.

Heat + excessive shaft speed = failure

[Stunn-R]

thanks so much GTST , finally someone who knows what they on about,

i been drifting on 1 bar for a while now and i know its not at max efficiency yet cause when i run 1.1bar i can noticeably feel the difference mid slide, it smokes up a lot more, so i just wanted to see who else has been running 1.15 bar and are ok? to give me a piece of mind, ppl said 1 bar was too much on my rb20 with r33 turbo but it seems absolutley fine

[2LV8ETR]

Payback21 ran 18psi on his stock 20 for a couple of months with no issues.

We were waiting for it to bang, but it didn't.

Needless to say, we were expecting it to.

[Stunn-R]

lol its not a waste of money , i got it for next to nothing and it was cheap to weld on my car is a slider so gate was a must for me hahahaha

plus when it blows its got an appt with GCG

but im not ready for that atm hahahahaha so just doing a bit of homework b4 changing my gate springs tonight thanks for your concernthough~!

[Stunn-R]

Payback21 ran 18psi on his stock 20 for a couple of months with no issues.

We were waiting for it to bang, but it didn't.

Needless to say, we were expecting it to.

thanks man, this is the kinda feedback i was after

[zebra]

*waits for new thread in a months time* "popped my turbo what should I get?"

[Stunn-R]

hahaha youre awesome zebra, good to see you like hardstyle so i cant say your 100% a top bloke lolol

try to add something constructive into your posts man im after some info not your jibberish unbacked opinions...

theres aLWAYS one of you tools in every thread.. lurking around lolol

[jazza08]

17psi on stock turbo with external gate, massive difference between 1 bar and 1.1 bar.. yeh he's the tool alright!

[Brockas]

i reckon you can run more boost through a 33 turbs on a rb20 compared to a 25 zebra so im gonna have to disagree with you there buddy

Then you add to the fact you are now spinning the shaft ever faster than RB25 owners (who's turbos generally die 12psi+)... its all asking for a turbo death.

Heat + excessive shaft speed = failure

Can you explain this for us Nismoid?

Boost is just a measure of the resistance of the head, for the shaft to spin quicker on an RB20 there must be less resistance...

I'm no RB20 expert, but what you're saying is the RB20 head flows better than the RB25 head?

[Dsturbd]

Just keep smashing boost in to you find the limit of the 25 turbo , then fit another n try again

Can you explain this for us Nismoid?

Boost is just a measure of the resistance of the head, for the shaft to spin quicker on an RB20 there must be less resistance...

I'm no RB20 expert, but what you're saying is the RB20 head flows better than the RB25 head?

Nice pick of your 33 gts-t there mate

[Stunn-R]

lolol jazza08 , thanks for that

another useless response, i dont need to justify myself or my mods

[Kyebidz]

Hey mate,

This is a bit of a trial and error excercise for you. As stated above you can run more boost through it cos its an RB20, not as much stress on it as a 25.

1.15 will be fine I reckon. Put a few heat protecting mods like heat wrap or a turbo bag around it to protect it more and i reckon you'll be able to run 1.25-1.3 at drift meets.

PM me if you have any more questions

[bubba]

I could only get away with 12psi through a 25 turbo on my untuned rb20. 14psi and it pinged.

but 16psi+.. I think that's way out of its' efficiency range!

[Dsturbd]

I could only get away with 12psi through a 25 turbo on my untuned rb20. 14psi and it pinged.

Wolf ecu ??

[jazza08]

Nah dude stock tune and 17psi won't ping at all!!!! Its ok because it's got a front mount

[Stunn-R]

ah ok thanks for that jazzA! go home now ... lol youre obviously one of those that got picked on at school andyou take your anger out here on the forums lol