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What Turbo Do I Have?

BANGN

By BANGN,
in Engines & Forced Induction

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BANGN Experienced

BANGN

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no way can i see anything there is just too much shit in teh way and doesnt look very easy to pull it all off.

il go have a look at that exhaust number but in the mean time the actuator has a stamp on it that says 242x02 in black writing and its stamped ASN79 or somthn

BANGN Experienced

BANGN

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4513 pretty sure. the 4, 5 and 3 is a definate confirmation but the 1 sort of looks like a V not sure, thats teh best angle i can get.

45v3.jpg

really looks like a V but not sure.. so i guess if it was that makes it a 45V3 which yeh is off a rb25, but there is a 45V1, 45V2 as well isnt there? whats the dif between them

Edited by YEHBOI
TTT Grand Master

TTT

Posted
Posted

on what engine?

on an RB25.. yes.. it's too much.

on a smaller rb20 it should be just about as much as you'd want to put through a ceramic exhaust wheeled turbo.

all the pics you've posted have had 20V seca in the name so you could be putting this on a 4age in which case, I've seen people put 17+ through that turbo on those engines.

TTT Grand Master

TTT

Posted
Posted (edited)

the RB25 is 500cc larger in capacity.

it can push out x amount more air so to speak.

so people say that the max safe boost setting for a stock R33 gtst is about 10-12psi.

and on a car that is 500cc smaller in capacity, it can handle more boost to put the same amount of strain on the turbo as it does on a lower boost setting when on the RB25.

Also, the RB20 has lower compression than the RB25 which also means more PSI to bring the power/heat to the same levels.

f*k that was a messy post.

Edited by GTST
MBS206 Grand Master

MBS206

Posted
Posted
  YEHBOI said:
its on my R32 GTST - RB20.

why the psi differences? is that due to the fact a RB25 puts out alot more exhaust heat than the RB20?

At 10PSi on a 2.5Litre, compared to a 2L, you're putting through more air. Which means turbo spins faster, which means more heat in the turbo.

abu Grand Master

abu

Posted
Posted
  GTST said:
the RB25 is 500cc larger in capacity.

it can push out x amount more air so to speak.

so people say that the max safe boost setting for a stock R33 gtst is about 10-12psi.

and on a car that is 500cc smaller in capacity, it can handle more boost to put the same amount of strain on the turbo as it does on a lower boost setting when on the RB25.

Also, the RB20 has lower compression than the RB25 which also means more PSI to bring the power/heat to the same levels.

f*k that was a messy post.

Well said. :/

Makes sense when you say it that way.

Thanks,

Abu

TTT Grand Master

TTT

Posted
Posted
  MBS206 said:
At 10PSi on a 2.5Litre, compared to a 2L, you're putting through more air. Which means turbo spins faster, which means more heat in the turbo.

which also means more power but that's a different point.

on one of my RB20's I bolted an RB25 turbo to, I had the usual mods except FMIC.

with the exhaust and filter being free flowing, and no boost control, the stock car would boost to 11psi. (stock is 10)

Once the RB25 turbo went on and I used a boost controller to bring it to 11 psi (I used the stock actuator instead of the rb20 one so it had 6psi stock), I put it on a dyno and it made 153rwkw.

I think a stock R32 makes around 110rwkw.

an RB25 with stock turbo at 10psi (if it isn't missing and spluttering like a shitbox) will have around the 170rwkw.

an RB20 with stock turbo at stock 10psi but with intake and exhaust mods will have around 130rwkw.

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