Bolt on Turbos for rb25det

Post by **dillusion13** » Mon Feb 09, 2004 1:16 pm

Looking to do the RB25det swap in my 240 in march. I just wanted to know, what BOLT ON turbos are available for it.

Post by **goofynick6** » Mon Feb 09, 2004 1:16 pm

T3 flanges bolt right on

That's a GOOD thing.

Nick

Post by **FAST-DATSUN** » Mon Feb 09, 2004 1:16 pm

HKS has several kit for the RB25DET...

Post by **BlockHead** » Mon Feb 09, 2004 1:16 pm

anything that can bolt onto the stock manifold, lol sorry I had to say it, its a t3 flange on the stock manifold.

Post by **dillusion13** » Mon Feb 09, 2004 1:16 pm

So any t3 flange turbo fits?

Post by **goofynick6** » Mon Feb 09, 2004 1:16 pm

A T3/T04E .63 turbine stage 3 with .60 compressor housing and 57trim wheel would fit quite well

Nick

Post by **eh?** » Mon Feb 09, 2004 1:16 pm

Some or all t3/t4's will not bolt on. The Compressor section will hit the manifold and prevent you from being able to bolt it down.

Post by **xjon** » Mon Feb 09, 2004 1:16 pm

NICO has more info regarding the RB than freshalloy, huh dellusion?

Post by **PROJECTRB240SX** » Mon Feb 09, 2004 1:16 pm

yes we do..... btw everytime I try to help people on freshalloy I get bashed..... why is that?

I now basically avoid going there.

Post by **BlockHead** » Mon Feb 09, 2004 1:16 pm

if you are having a problem with a housing hitting the manifold, the shop I work at makes spacers for the T3 flange so it will fit.

Post by **rudeboy** » Mon Feb 09, 2004 1:16 pm

good info. so the position of the flange is the only thing that will be an issue on some turbos'...T3'sam i correct?

Post by **cyris3d** » Mon Feb 09, 2004 1:16 pm

http://www.nissaninfiniticlub....51961

Post by **Wykid 240** » Mon Feb 09, 2004 1:16 pm

What do you think will be a good turbo for a RB25 for around 450-500whp?

Thanks,Jeramy

Post by **dillusion13** » Mon Feb 09, 2004 1:16 pm

"A T3/T04E .63 turbine stage 3 with .60 compressor housing and 57trim wheel would fit quite well "

Is this a suggestion, or do you have this? If you have it, how much HP is this good for? I'm trying to get the biggest turbo I can on the stock manifold.

Post by **dillusion13** » Mon Feb 09, 2004 1:16 pm

Also."im gonna be goin BIGGER, getting a T04R-67.. so i prolly be gettin rid of a few things as a bolt on kit...

60-1/t3 (user for 2 months)adapter box, allows for bigger turbo cleanance and external wastgatetial 38mm wastegate2.5inch down pipe and o2 bung installedSteel braided oil feed and return lines..and 550cc injectors.. "from another thread. This adaptor........how much does it cost and does it allow for a bigger turbo? Will the turbo location heat affect any other parts on a 92 240sx?

Post by **goofynick6** » Mon Feb 09, 2004 1:16 pm

dillusion13 wrote:"A T3/T04E .63 turbine stage 3 with .60 compressor housing and 57trim wheel would fit quite well "

Is this a suggestion, or do you have this? If you have it, how much HP is this good for? I'm trying to get the biggest turbo I can on the stock manifold.

A suggestion an engineering friend and I came up with when trying to size a nice turbo for the rb25 which had good spoolup but pulled to over 7000 rpms nicely and efficiently.

Nick

Post by **dillusion13** » Mon Feb 09, 2004 1:16 pm

so you don't know if it actually fits?

Post by **Wykid 240** » Mon Feb 09, 2004 1:16 pm

Has anyone here know about the HKS GT3037? I've heard that it's one that should use to make 450-500whp. . . . ? Does anyone know the specs o that turbo?

Thanks,Jeramy

Post by **Porschephile** » Mon Feb 09, 2004 1:16 pm

Wykid 240 wrote:Has anyone here know about the HKS GT3037? I've heard that it's one that should use to make 450-500whp. . . . ? Does anyone know the specs o that turbo?

Thanks,Jeramy

I can't remember but I think the 3037 is quoted at 400hp and 3037 S Pro ~420hp. I'm pretty sure they mean rwhp. I remember someone did ~500+ hp with a Gt3037S on an SR so it's possible. I love HKS Compressor surge housings! Makes it sound like an 18 wheeler turbo.

Post by **93RPS13** » Mon Feb 09, 2004 1:16 pm

goofynick6 wrote:A T3/T04E .63 turbine stage 3 with .60 compressor housing and 57trim wheel would fit quite well

Nick

is that turbo laggy for a RB20? Thanks

Post by **goofynick6** » Mon Feb 09, 2004 1:16 pm

It probably would be a little with the 57 trim. On my RB20 I'm gonna do the same thing but with a 50 trim and it should hopefully spool 16psi by 3800 rpms which is nice.

Nick

Post by **93RPS13** » Mon Feb 09, 2004 1:16 pm

yea cuase i was looking at that turbo on http://www.cheapturbo.com

does anyone have like a efficency map for the stock RB20 turbo?

Post by **Imissmyturbo** » Mon Feb 09, 2004 1:16 pm

I am considering a 57 trim T3/T4 with a .63 exhaust. I did some research on Honda-tech. There are a few people over there who know there turbos. From what I have red a 57 trim compressor is better then a 60 trim compressor at lower boost levels (8-12 psi) After that the 60 trim compressor really shines (18+ PSI) Since I am planing on keeping to boost lower then 18 psi I think the 57 trim is a better choice for me.

Post by **candela** » Mon Feb 09, 2004 1:16 pm

Well you will likely have to pay a little more, but if you are staying under 18psi than a 50trim will shine MUCH more than the 57 or 60 trim period. Garret does not make 50 trims, so it will have to be made... there are tond of shops that sell them for good prices including http://www.agpturbo.com

Post by **bigk** » Mon Feb 09, 2004 1:16 pm

93RPS13 wrote:yea cuase i was looking at that turbo on http://www.cheapturbo.com

does anyone have like a efficency map for the stock RB20 turbo?

i was looking there also.would the t3/to4r be a good turbo for the rb25det for 450-500 rwhp?

Post by **candela** » Mon Feb 09, 2004 1:16 pm

you have to tell us what kind....

that is giving a broad range of sizes that include a/r's, trims and types of housings/wheels....

500rwhp can be had with really good tuning on a 50-60trim running 20+ psi. ANything more than 2.0 Liters and I would prolly go witha minimum of a 60-1 compressor wheel with a .82 hotside (rb25 that is...)

Post by **bigk** » Mon Feb 09, 2004 1:16 pm

candela wrote:you have to tell us what kind....

that is giving a broad range of sizes that include a/r's, trims and types of housings/wheels....

500rwhp can be had with really good tuning on a 50-60trim running 20+ psi. ANything more than 2.0 Liters and I would prolly go witha minimum of a 60-1 compressor wheel with a .82 hotside (rb25 that is...)

well i dont know which trim would be the best all around for the rb25det. good spool, but with good hp numbers. i dont car about lag that much but i dont want just a dyno queen.

to4r compressor .70t4 turbinechoice of .58a/r , .70a/r ,.84a/r or .96a/r housingwith O , P,or Q trim wheel

Post by **candela** » Mon Feb 09, 2004 1:16 pm

Oh ok... thats pretty large. Da P-trim or O-trim are better suited for that motor (me likes P on 2.4+ :p)

You want to compromise on yoru turbine a/r... the smaller you go the faster spool you will have with sacrificing a little top end.

Post by **Imissmyturbo** » Mon Feb 09, 2004 1:16 pm

I am pretty well set on a SC61 from precsion turbo. This turbo uses a GT40 wheel. Just gotta save my pennies.

Post by **Snarlynx** » Mon Feb 09, 2004 1:16 pm

yeah, the garrett gt30 series fits... says the aussie site...

Bolt on Turbos for rb25det

Bolt on Turbos for rb25det

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