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Buying a new turbo for my 33, any advice?

burt

By burt,
in Engines & Forced Induction

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burt Apprentice

burt

Posted
Posted

Hiyas

Im looking at buying a new turbo off another dood, just wondering if you guys could offer some advice/info on it for me.

heres some details...

Specs:  

Oil cooled  

Front A/R: .50  

Front blade: 57mm!  

Front housing: T04B  

Rear A/R: .58  

Rear wheel: T3 with cut back blades.  

This turbo will be coming of a Mitsubishi VR-4 that weighs 1600kg (boat!) and has dynoed 250kw at all fours and has run 12.2. It has T3 flange so will bolt up to RB20/25 stock manifold and SR/CA with adaptor plate. This turbo should make well over 250rwkw on these motors.

Will i have any problems physically fitting it in there, and im guessing i will probably need another dump pipe made up? are the specs any good?

All I know is it *should* be a pretty easy swap into my engine, is there anything I should be aware of.

Current mods are custom FMIC, 3" exhaust/dump, pod with cold air, brass button clutch, 11psi. How much of a gain should I notice just running the same boost with this new turbo?

Will the fuel pump/injectors be able to handle this..

sorry for all the questions, i just dont want nasty suprises when I get it :D

thanks in advance.

meggala Grand Master

meggala

Posted
Posted

you will need a bigger fuyel pump at least and a s-afc its not as simple as bolting on a new turbo for more power. you could possibly need bigger injectors. got to my web site and read the article on modifications and get the turbo fitted and tuned buy some one who knows what they are doing as it wont be straight forward as it came off a different type of car.

meggala

Al Grand Master

Al

Posted
Posted

This turbo sounds pretty serious. I read this thread but thought the turbo may be a little too big for my liking.

With this power you will need at least the following mods:

-Some kind of engine management, i personally feel that a s-afc will not be safe for you engine when making this power.

-550cc injectors

-Larger fuel pump

-fuel regulator

-External waste gate(no mention of it in the thread)

-Maybe a oil/air seperator (due to the high boost required)

NOTES:

-11psi of boost is not sufficant to get that power, ask seller how much psi was required to acheive 250kw at all 4 wheels, and if the car was running pump fuel on the dyno run.

-There is alot of things involved to acheive this power.

-Boost may not hit till at least 4K rpm (if not higher), can you live with this lag?

I am not trying to turn you off, just informing you of what little i know. Lately i too have been considering a turbo upgrade, so i have done some research. Infact i have very recently posted up a thread about building an RB25DETT (twin turbo setup) to see if i can acheive 280-320rwkw with less lag than a 600hp turbo.

Hope all goes well!!

Alan

burt Apprentice

burt

Posted
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Posted

Thanks for your input Al

Yeah I think I might leave the turbo upgrade till I at least get a new fuel pump and fuel regulator, maybe a chip of some sort. I already have a catch can.

I wasnt expecting to make that sort of power/time with my current mods anyway, just thought a turbo upgrade would be a nice step.

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