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Best Upgrades For Rb26 Turbos Manifolds Waste Gates

MJTru

By MJTru,
in Engines & Forced Induction

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MJTru Mentor

MJTru

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Hi I've finally gotten a GTR, and now I'm wondering if my upgrades will give me a fast spool and good power. Well I'm looking for about 700 hp to the wheels.

The car came from Japan with about 12000 Km on the clock with all paper work even I was surprised to get the fax on the car from the dealers info list. The car only had one owner and he died a while back so the car sat for a very long time. Well even the engine shows signs of low milage, but even with all the paper work for the car I still don't believe them. My main reason for not be leaving them is because the car has a new model blitz boost controller greedy twin plate clutch I can hear it. Greedy FMI. Oil cooler kit with full mines exhaust, along with some HKS gauges.

Well after reading up on the GTR's I now know that the turbos are the first weak link, so I contacted Kyle at 6boost and asked him his recommendations for max power with very fast spool. He mentioned that I can go with a gtx3582r with Garretts twin scrole housing, he will build me a twin scrole manifold using twin Tial MSV waste gate. The engine is fully stock, but I'm planning on building it using the Tomie stocker kit for the bottom end, and going with a fully built head from Jun in Japan.

Now I already have the turbos waste gate, and manifold from Kyle at 6 boost. I'm only waiting on the oil return lines and some couplings to link the turbo to the intercooler piping.

What do you guys think of the setup. Will it be very fast spooling?

How will it work on a stock motor, and what would the max boost be on a stock motor now that I can boost past 1 bar. With a good tune of course.

Will the turbo be to small with the strocker kit?

I have build GTST and run 30+ psi on them and after a long time now I have learnt all of there weakness

What I have found is that the hydraulic litters fail, and the GTRs head uses solid litters, I always wondered if I was to use a NEO head how it would work, cause the NEO head is solid as well. After launching the GTR the 4wd system won me over. Launching at 8500 RPMs kills a new vet in the quarter he runs me down but can't pass me before the finish first and second gear takes it. LMAO only if I new these GTRs are so fast stock even my 30+ psi GTST can't catch it in the quarter. We don't race on a official track we use paved roads so traction is a bitch.

I can't wait to see how fast the spool is, and I'm guessing with this manifold the GTX turbo should love it.

Hands down to Kyle from 6 boost for building the best manifolds I've ever seen.

Edited by MJTru
scotty nm35 Grand Master

scotty nm35

Posted
Posted

No, I dont think we have seen a setup like that. Its a big flowing turbo, usually too big for a 2.5 but it may be good with the stroker kit. What size will it be taken out to?

I assume you are sticking with 98? It should hit over 400kw I guess and hit good boost around 4K (if you don't go too big on the rear housing.)

MJTru Mentor

MJTru

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Ok thanks for the feed back mate.

It's a Garrett GTX3582R 6Boost twin scrolle manifold with dual Tial MSV waste gates with the divid rear housings. I have some good pics of the setup but I'm still working out how to post them from my IPad.

The motor is stock right now, I also got a Tomia internal fuel pump with fuel rail.

To finish it of I got two Z32, AFM's and a fuel regulator.

The car has a Bliz boost controller that's nice. Displays a lot of info.

A power FC is standard in all my cars.

Oh and the little things HKS spark plugs.

I plan on installing some new injectors soon as possible. I'm sure at around 20 psi the stock injectors will reach there max duty cycle.

My goal is around 700hp to the wheel and for reliability I will build the motor after I feel this set up stoking it with Tomie's 2.8l stoker kit.

The hp was is not just the main thing I am looking for, response is mainly my ultimate disiure. But yet keeping a high realistic hp level should be funny to drive on the week days, with minamal lag.

Building the motor for response will untimatily yeid more than just the pumping air into it setup. ( turbo setup)

So any good ideals for the cam lift and duration alone with degree would play a key factor in gaining max respond, and for me trying the turbo setup first will kind of open my eyes to where the weak or lacking spots are in the power band. Keeping these things on mind when building the motor.

Keep it coming mate I appreciate all your help.

I will read up on the GTX posts thanks

MJTru Mentor

MJTru

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Posted

I have ran 25 psi max out at single z32 MAF meter. On a rb25 with stock internal good tune. I did this on 22 psi for months and after a week on 25psi the 25 died but. Had all the right bolt ons the ring landings failed on 2 cylinders after that I build the motor and I'm still having fun, I just got a haltech ps2000 for the GTST and now I wil really puch it lol. Oh nag hat was with a 6 boost manifold Tial 44 mm waste gate and a Garrett GT35R I cant remember the housing size. I think it was smaller a 62 maybe.

The 26 is much stronger from being the under dog for may year, from what I understand. Lol

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