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New Turbo Now Installed...

CATKICKER

By CATKICKER,
in Engines & Forced Induction

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Rolls Grand Master

Rolls

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highflow on rb25 is just like a stock turbo basically in terms of response, but a lot more top end.

i hate highflows on RB25's 100%

Uh with a highflow don't they machine the housings and then put a wheel of their choice in there? so there would be many different combinations all with different results?

CATKICKER Mentor

CATKICKER

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It all worked beautifuly for about 10mins! Still a bit of lag but very quiet and pulled very strong.

Then... tick tick tick... It is worse than ever! Grrrrr

It is definatly coming off now, not going to go to that effort for the 3rd time without replacing it with something smaller!

Bring on a Series2 R33 turbo (Or R34 :) )

chrissso Proficient

chrissso

Posted
Posted
It all worked beautifuly for about 10mins! Still a bit of lag but very quiet and pulled very strong.

Then... tick tick tick... It is worse than ever! Grrrrr

It is definatly coming off now, not going to go to that effort for the 3rd time without replacing it with something smaller!

Bring on a Series2 R33 turbo (Or R34 :) )

Hey Mate, I have a couple of questions.

During the 10 min that it was good, did the boost come in quicker?

Was it at full boost earlier?

What kind of engine management? Did you get it tuned?

Reason I ask this is because what you need is a new gasket.

If it went well for 10 min and you liked it, it might be worth perservering with it.

I think that gasket sealant you used didn't take the pressure inside the mainfold. I believe that the pressure in the exhaust mainfold can get up to double the boost, silicon or whatever isn't going to handle that amount of pressure.

Tuning can help spool turbos earlier as well.

It sounds like it could be heaps of fun if you get it right!!

CATKICKER Mentor

CATKICKER

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Thanks for your reply...

It seemed to come on quicker but because it was cool and I had only just done the repair, I really didn't push it enough to know for sure - definatly didn't hit full boost.

I have a Dr Drift remaped ECU. It has not been tuned for this turbo as I only installed it last weekend.

Yeah, I think that myself but I feel that if I am going to go to the effort I should put on something that I will be truly happy with. (I like to drift and raz it off the lights).

I agree with the sealent, it seems to be all coming down to me not replacing that friggin gasket - let this be a warning! :blink:

CATKICKER Mentor

CATKICKER

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NOW FOR SALE!!

Turbo For Sale

I fitted this turbo to my RB20 and it is a bit too laggy for my liking. It has been recently built, has no shat play and is in excellent condition.

All I am able to tell you about it is this…

It has an RB25 Exhaust Housing with very large steel wheel, quite a large Garrett compressor housing with a large wheel. It is a straight bolt up to an RB20 and RB25.

Fitted to my car (only for a week now), it starts to spool at about 3-3500rpm and hit full boost at around 5000rpm. Pulls strong!

I have only run it at 14psi but from the look of it, it should be good for 18-20psi and would expect it to be rated at around 220-230rwkw.

This would suit an RB25 to a tea or something bigger than an RB20 (unless you like a bit of lag!)

I will happily do a direct swap for a series 2 R33 turbo!

I am selling for $600ono or $500 firm.

SH!T LOAD OF PICS:

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jazza08 Mentor

jazza08

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Thats crazy cheap, what you dont realise is with a PROPER tune you could bring responce of the turbo down by say 500rpm if someone spent some time on it! Plus you shouldn't be running that kind of turbo without a tune for it, your motor would hate you for slapping a big turbo on and running 1bar, a/f ratios would be goin nuts lol

CATKICKER Mentor

CATKICKER

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Thats crazy cheap, what you dont realise is with a PROPER tune you could bring responce of the turbo down by say 500rpm if someone spent some time on it! Plus you shouldn't be running that kind of turbo without a tune for it, your motor would hate you for slapping a big turbo on and running 1bar, a/f ratios would be goin nuts lol

I know but how much better would life be for me with a series 2 r33 turbo??

jazza08 Mentor

jazza08

Posted
Posted

ALOT less hp, but you'll have full boost by say 3.6-3.9rpm's (1 bar?), if its tuned well. You must have it tuned properly by a tuner though, dr drift is a good tuner but you need someone who can see your motor and turbo choice and tune it accordingly you know.

If its an rb20 get it rom'd as its a cheap but good option and the tuner can then set ur ignition timing and air/fuel ratios to suit ur new/existing turbo.

You may crack 300rwhp with the turbo (if you had injectors) you have now where as 250rwhp would be a more realistic target with the rb25 turbo (maybe abit more with a 34 turbs)

Personally id keep the turbo you have and get it tuned properly, if your still not happy then chuck it away, but what ur doing now isn't serving the turbo justice at all dude and ur selling it for alot less than its worth in my opinion...

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