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R32GTR/Iceland
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DVS JEZ Grand Master

DVS JEZ

Posted
Posted

anyone know of any GTR's running the PT6262 ball bearing with a T4 Divided .84 A/R with 3 5/8" V-Band discharge? would the .84 twin scroll be abit restrictive on the 26?

I have just bolted mine up today. The exact turbo u are talking about. Hoping to have it running by next weekend after i finish a 34 with PT5558.

I have fabbed up dump pipes for both and worked out cooler piping, plumb back pipes etc

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SimonR32
SimonR32

The 6262 sillyness is never ending... New cams just got the most power and torque it's ever made

SimonR32
SimonR32
Mick_o
Mick_o

Dale is 100% correct its a well proven fact that smaller cams in RB's aid in response. Even going from a stock cam to a type b pon cam will cost you response. Been many track guys that have thrown the

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DVS JEZ Grand Master

DVS JEZ

Posted
Posted

This will be interesting Jez!

What's the specs for that 34?

Stock neo motor with Type B poncams and adj exh cam gear, link ecu with flex fuel tune, hybrid manifold, mvr 44mm gate, id2000's plazmaman ffp, DVS dump and plumbback pipe. Hoping to have it running and tuned early next week. Depending if Link arrives and also waiting on plazmaman plenum to be finished.

I was wondering whether you got the new turbo in yet, guess I have the answer.

How much boost are you going to run do you think?

That i will have to see what the engine likes when im tuning it. I will see how confident i feel with the power output as its a stock motor. Also running stock cams atm. I would like to see the differences in stock cams then type B poncams. Then i will think about doing variable cam once i have to upgrade the headgasket.

DVS JEZ Grand Master

DVS JEZ

Posted
Posted

Very nice, shame its a stock motor as its probably not going to be able to show its real strength. I am assuming its a ball bearing 6262, and you are going to tune for E85?

Yes both are ball bearing. My rb26 i am trying to get as much response as possible which is why i went twinscroll 6boost manifold and .8 twin scroll rear. My old steelwheeled highflows came on hard around 4500rpm ad made 307 so i am aiming to better that

Yes both will be tuned on E85. They are actually both going to be be flex fuel tuned.

We understand the stock motors will be the limiting factor but not going to build the motorS until the time comes

Lithium Grand Master

Lithium

Posted
Posted

My old steelwheeled highflows came on hard around 4500rpm ad made 307 so i am aiming to better that

Yes both will be tuned on E85. They are actually both going to be be flex fuel tuned.

Nice, very interested to see where it comes in - I've always had it in my head the PT6262 would be on the laggy side, though never been sure. If it can be all in before 4500rpm then that'd be fantastic :)

Roy Grand Master

Roy

Posted
Posted

Stock neo motor with Type B poncams and adj exh cam gear, link ecu with flex fuel tune, hybrid manifold, mvr 44mm gate, id2000's plazmaman ffp, DVS dump and plumbback pipe. Hoping to have it running and tuned early next week. Depending if Link arrives and also waiting on plazmaman plenum to be finished.

That i will have to see what the engine likes when im tuning it. I will see how confident i feel with the power output as its a stock motor. Also running stock cams atm. I would like to see the differences in stock cams then type B poncams. Then i will think about doing variable cam once i have to upgrade the headgasket.

Are you going to stick with 2.5" out of the IC into the plenum or go 3"?

scotty nm35 Grand Master

scotty nm35

Posted
Posted

3 inch is pretty big Roy, I usually use 3 inch out of the turbo on builds over 400kw, I know it supports at least 550wkw from a car I did recently... 2.5 inch should be fine mate for either side.

I also fabricated piping for a built STI Liberty in 2 1/4 alloy, it runs 280awkw. More important is the cooler end tank design imo.

DVS JEZ Grand Master

DVS JEZ

Posted
Posted

Just curious, mine are 2.5" and the numbers suggest that for 590cfm it should be fine with 2.5", but as always its interesting that the RB26 and GTR run 3" std

I see what u mean Roy, we will find out soon but i dont think the 2.5 will limit the setup. I think the only thing that will limit the setup is the standard internals

STATUS Grand Master

STATUS

Posted
Posted

Very nice, shame its a stock motor as its probably not going to be able to show its real strength. I am assuming its a ball bearing 6262, and you are going to tune for E85?

the engine will take allot of abuse with that turbo on e85.... :P just dont be scared. These turbos come alive at around 28-35psi.
Ryan1200 Proficient

Ryan1200

Posted
Posted

the engine will take allot of abuse with that turbo on e85.... :P just dont be scared. These turbos come alive at around 28-35psi.

Stre180 sr20vet made 'apparently' 760rwhp on a 6262 .63 housing it would want to be a low mileage 26 to even make 600whp reliable.

STATUS Grand Master

STATUS

Posted
Posted

Stre180 sr20vet made 'apparently' 760rwhp on a 6262 .63 housing it would want to be a low mileage 26 to even make 600whp reliable.

I agree it would want to be a "known" engine but really 600whp is a walk in the park especially for a few dyno runs....if it was my own personal car like it is with jez i would have no problem running it regulary at 400rwkw. We see this power quite often on std 26 engines on E85. I reckon in realistic power @ 35 odd psi 700whp is achievable with that setup but i would stay sub 30 on std bottom end.... i still find it difficult to believe that 760whp result with the 0.63 housing.
Lithium Grand Master

Lithium

Posted
Posted

Interesting that you mention that, someone I know hit 400awkw on E85 at around 22psi with his unopened <100,000km old RB26 and coolant started escaping places it wouldn't, I had thought it should be reasonably safely doable too... good to know there are plenty of others which have done so fine.

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