Garret Gt35 With T3 1.06 Rear Housing

[BMYHOE]

Hey Guys,

got an rb30 twin cam built and almost ready to drop into my car,

just wanna see if my turbo setup will be efficent enough for 400rwkw

i have a GT35 with T3 1.06 rear housing on a HKS split pulse top mount manifold.

i am using a T3-t4 adaptor plate that is around 1 inch thick.

my questions are;

will the T3 exhaust housing be restrictive?

i have someone that wants to buy my turbo should i sell it and buy the new GTX35 with t4 rear housing?

should i get a splut pulse exhaust housing to match my manifold? will if be better is these are matched?

or should i keep what i got?

Thanks in advance guys..

Dan

[rockabilly]

i had a t3 gt35r with a 1.06 rear on a etm manifold, made 670bhp @ the fly @2 bar boost. thats on a rb26/30 big cams and 8000rpm. that was its lot, we tuned boost up but no more power just heat..

[NYTSKY]

If you have a split pulse manifold then get a split pulse rear housing. Sell the turbo and buy the GTX35R.

[BMYHOE]

Just looking on garret website, they dont seem to list a gtx35 with T4 Split pulse rear housing..

[NYTSKY]

You can have any rear housing the GT35R had.

[DCIEVE]

Garrett didn't make a t4 twin scroll exh housing for the gt35, the only place that sells them (afaik) is ATP and the quality is questionable. That combined with the housing being so large it obscures most of the core so access to oil and water lines is very limited led to me selling mine.

Suggesting a gtx when initial results are less than promising might be leading the guy astray.

OP, the t3 1.06 should make 400rwkw assuming everything comes together but there are a lot of interesting developments in this size range so it might pay to hang tight and watch the results starting to roll in (gt/gtx/efr/precision).

[BMYHOE]

Garrett didn't make a t4 twin scroll exh housing for the gt35, the only place that sells them (afaik) is ATP and the quality is questionable. That combined with the housing being so large it obscures most of the core so access to oil and water lines is very limited led to me selling mine.

Suggesting a gtx when initial results are less than promising might be leading the guy astray.

OP, the t3 1.06 should make 400rwkw assuming everything comes together but there are a lot of interesting developments in this size range so it might pay to hang tight and watch the results starting to roll in (gt/gtx/efr/precision).

I am looking a Borg Warner s366 turbo, can get one for a good price. only thing is there is not many people using them here in Aus.

in america they seem to be popular..

just worried it could be abit laggy..

specs are:

Twinscroll T4 flange V band out beveled 4.21" Full Marmon flange

.91 turbine a/r

Flows upto 80lbs/min

Supports upto 800hp

included: T4 mounting gasket and oil drain gasket

Turbine housing V band outlet can be machined down to a flat 4" upon request after purchase if desired

Thoughts??

[BMYHOE]

im going to sell the exhaust housing & get a t4 one. my bonnet wont close lol

[Char]

what car is it going in? my turbo hits the bonnet but im just going to use spacers on the hinges

[rob82]

400rwkw on pump with 35r 1.06 is possible but most setups go just shy of there. Definately a good aim point. If you've got some higher octane fuel you'll get there probly over. I honesty think that the 35r is the perfect turbo for the RB30/26. If you want the twin scroll version get this with 1.00AR divided housing:

http://store.forcedperformance.net/merchant2/merchant.mvc?Screen=PROD&Store_Code=FP&Product_Code=NTGT3586HTA&Category_Code=Turbo-FP

Forced performance turbos have never let me down for power and response.

Edited March 19, 2011 by rob82

[PSI Parts]

I have the ATP twin scroll GT35R with 1.06 rear housing, check our Project Car thread for pictures of the set-up.

Should be on the dyno by the end of next week for its first run. Although its an RB25 it might give you an idea of what the turbo is capable of?

[BMYHOE]

Thanks for replys guys,

car is a Silvia s14, managed to get the bonnet to close over the weekend have to re design sump ( Dry sump set up).

And am going to use E85 too.

But still pretty keen to swap for T4 housing.

[Jap_Muscle]

What are you guys running on the intake side of things? OEM plenum and TBs? what size intercooler? standard Valve springs still? 

im still running through hoops trying to crack 400kw on 98ron. im currently running a 75mm intercooler and suspect that it might be at its end. Saving the $$$ for a decent 100mm core.  any thouhgts?  

my setup

rb26/30 + oem rb26 cams

gt35r .82 rear

3.5inch exhaust

power fc d jetro ecu

Edited March 23, 2011 by Jap_Muscle

[TiTAN]

What are you guys running on the intake side of things? OEM plenum and TBs? what size intercooler? standard Valve springs still?

im still running through hoops trying to crack 400kw on 98ron. im currently running a 75mm intercooler and suspect that it might be at its end. Saving the $$ for a decent 100mm core. any thouhgts?

my setup

rb26/30 + oem rb26 cams

gt35r .82 rear

3.5inch exhaust

power fc d jetro ecu

Everyone i have talked to has said you need at minimum a 100mm thick intercooler with 3" in and out.

OEM RB26 intake is fine as is

Valve springs may be an issue, see if you start to get float during tuning or change them now if you are worried

[Jap_Muscle]

Hi Titan,

It does seem like that is the case. However what intercoolers do people recommend? There are a few 2nd hand old school TRUST drag intercoolers lying around for cheap but most of the new Plazmaman, Nismo, ect all ask upwards of $2000.

Im not one to be cheap but has anyone had experience with certain types of cores? And does anyone think a 2nd hand TRUST drag exhaust can still do the job?

[BMYHOE]

Hi Titan,

It does seem like that is the case. However what intercoolers do people recommend? There are a few 2nd hand old school TRUST drag intercoolers lying around for cheap but most of the new Plazmaman, Nismo, ect all ask upwards of $2000.

Im not one to be cheap but has anyone had experience with certain types of cores? And does anyone think a 2nd hand TRUST drag exhaust can still do the job?

Hey Jap_Muscle,

im going to be using a plazmaman intercooler, maybe give them a call and they can build one up probly cost you anywhere from $1500 - $1900

not sure how much your going to spend on a used trust cooler? $800 - $1000?

[Jap_Muscle]

I had a long chat with Plazmaman a few months back about their intercooler designs and quality. They claim that they have the most efficient intercoolers in the world and would benchmark their products with anything. Bold statement never the less.

I do however have a TRUST 100mm drag cooler available for 500. But there is some pipework that needs to be done. How soon are u going to get yours all sorted out and tuned mate? Gt35r rb26/30?

Keep us posted

[BMYHOE]

I had a long chat with Plazmaman a few months back about their intercooler designs and quality. They claim that they have the most efficient intercoolers in the world and would benchmark their products with anything. Bold statement never the less.

I do however have a TRUST 100mm drag cooler available for 500. But there is some pipework that needs to be done. How soon are u going to get yours all sorted out and tuned mate? Gt35r rb26/30?

Keep us posted

Im still about 6 - 8 months away, will defenly post some results when its done.

[BMYHOE]

So Guys, would a T4 1.00 split rear housing be a good option?

just remember someone saying the split exhaust housing could restrict flow? is this true?

[rob82]

What are you guys running on the intake side of things? OEM plenum and TBs? what size intercooler? standard Valve springs still?

im still running through hoops trying to crack 400kw on 98ron. im currently running a 75mm intercooler and suspect that it might be at its end. Saving the $$$ for a decent 100mm core. any thouhgts?

my setup

rb26/30 + oem rb26 cams

gt35r .82 rear

3.5inch exhaust

power fc d jetro ecu

I doubt you'll get over 400rwkw with a 0.82 rear on pump. I would think that around 350rwkw would be maximum on pump with a 0.82rear.

As for intercoolers - The most thermally efficient cores I've seen are from process west. The plazmaman ones are close but process west are definately the best.

Edited March 24, 2011 by rob82