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Building An Rb26 For Response....

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scotty nm35 Grand Master

scotty nm35

Posted
Posted

HKS laid it on a platter and it's too expensive. Why don't you retrofit it to the cams you have now? Make the whole thing yourself from VQ35 parts if you want to save a buck. It's been done already, it can't be too hard to replicate.

Everyone wants to take the easy way, but don't want to pay the price...

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Duncan
Duncan

BTW I just wanted to clarify something from earlier in the thread. Choices made during tuning won't give you more responsive motor, or at least there is no compromise to be made between power and res

Piggaz
Piggaz

Won't rev then, geez.

XKLABA
XKLABA

I own both a well sorted 2.6 and a well sorted 3.0 ( motor wise anyway, the suspension still needs work ) and both are much of a muchness for response and the 3.0 kicks the shit out of the 2.6 and def

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cobrAA Mentor

cobrAA

Posted
Posted (edited)

Carbon driveshaft won't do much for how the turbos will respond. You notice the throttle response improve a bit.

You want response, 6262 would be your pick, not a 6266.

Agree, but at the end, either is engine response or turbo response, your but/head will still feel its a bit more responsive than it was :)

To be honest, I'm looking at different turbos option but to quote my supra friend '' damnnn can't believe the cost of a single conversion on your RB is 3x more expensive than on my 2jz'' So, as much as new gen2 billet wheels from Precision or EFR can be good option and yeild better result... for 6-7k, I might as well built a RB28 and keep my -5 ( or have a hta2869 wheel upgrade) and make good power too :P

Edited by cobrAA
  • 3 weeks later...
nzkiwi86 Apprentice

nzkiwi86

Posted
Posted

Where do you live? Just remember that they made the 26 to be a 26. Stick with the 26 and don't worry about stroker kits or 26/30 combos. If you go to a tuner that knows what they are doing you'll make over 1000hp with the 26. I'm sure that is more than enough for what you are chasing for the street.

Lithium Grand Master

Lithium

Posted
Posted

Where do you live? Just remember that they made the 26 to be a 26. Stick with the 26 and don't worry about stroker kits or 26/30 combos. If you go to a tuner that knows what they are doing you'll make over 1000hp with the 26. I'm sure that is more than enough for what you are chasing for the street.

I bet the response on a 1000hp street car will be fantastic

As in it will be fantastic when it finally responds ;)

Ben C34 Grand Master

Ben C34

Posted
Posted

Where do you live? Just remember that they made the 26 to be a 26. Stick with the 26 and don't worry about stroker kits or 26/30 combos. If you go to a tuner that knows what they are doing you'll make over 1000hp with the 26. I'm sure that is more than enough for what you are chasing for the street.

That's some strange advice.....

Lithium Grand Master

Lithium

Posted
Posted

Having said that, check out the clip I posted in the Borg Warner EFR thread - 900hp @ crank RB30 drift car, pretty fun stuff :) RB26 with 1000hp however, not too exciting but not necessarily as bad as some may think these days.

  • 3 weeks later...
The real NISMO1 Enthusiast

The real NISMO1

Posted
Posted

I recently changed my T78 for a PT6262(help from SAU) and installed Poncams B because it was not a car you want to have for a DD. It was laggy as hell and with the quad OS clutch was a pig in traffic, especially on hills.( did miss that neck snap when the T78 kicked in at around 5.5Ks up into 9Ks) I can only imagine what a 1000HP machine would feel like, whooow :)

Here are the Dynos , brown PT6262 new tune, it is a different car to drive. The quad clutch is no longer a problem with the extra torque down low, just love it :)

Going to have a custom exhaust system installed as it is bit restrictive, Walbro 460LPH fuel pump and a Haltech Pro R34GTR ECU , the ECU is because my Apexi FC is playing up and nothing to do with trying to get low end power.

After this has been completed and on the Dyno I will post the new chart, hope it is what I am after, a gutsy street car.

post-134126-0-87228200-1399714359_thumb.jpg

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The real NISMO1 Enthusiast

The real NISMO1

Posted
Posted

Totally different car, early response, smooth power on bends and keeps going. It was good to find out how good they can be and if I want, I can make it even better, well the $ can :)

I never had much of a chance to drive it after the work was done, 3 hours into the trip home the Apexi ECU lost the new Tune, about 45 Klms from home on a bush road, cars eh, haha

Will be interesting to see how much more responsive the new exhaust system makes it, any extra will be great.

With the fuel supply upgraded it can be tuned up as the motor has been worked and the extras added to support the power it is capable of. But I am not after top end power, just early and whatever else comes with the new work.

gtr jet Veteran

gtr jet

Posted
Posted

I think you'll be pleasantly surprised how much better the car will be again once you fit up the new exhaust and fix the fuel system.

Should be able to grab another 70 -100kw out of it too if your keen to wind the boost up :)

  • 1 month later...
The real NISMO1 Enthusiast

The real NISMO1

Posted
Posted

What is it with these cars, once you start playing with them it is hard to stop until you get close to what you wanted.

I want more Torque, still do and looking into getting a Nitto 3.2lt Stroker kit,from what I have read I have many of the mods needed to support any extra KW/HP and it will give me the Torque that I am after.

If I do this, did I waste the money I just spent changing to the PT6262 and the Poncams B.

I am still doing my homework, been looking on SAU and got nothing so far but I am sure it is here somewhere??

Piggaz Grand Master

Piggaz

Posted
Posted

Well if you're going to all the effort of fitting a stroker, you'll be sorting the head out too. Really, you won't be dicking around with "drop in's". Relieve the head and get some lift up it.

GTRNUR Grand Master

GTRNUR

Posted
Posted (edited)

I disagree.

A PT6262 on a 3.2 will drive like a monster in low end, and still produce a good final power figure easily.

Set up a 3.2 with a 9:1 compression ratio. Port you head and keep your B Poncams. You'll be surprised just how good it will perform on low end. If the budget permits the get some more lift like Paul suggests.

The larger you go in displacement, the angrier the cam you can get away with in a street car.

Edited by GTRNUR
The real NISMO1 Enthusiast

The real NISMO1

Posted
Posted

I disagree.

A PT6262 on a 3.2 will drive like a monster in low end, and still produce a good final power figure easily.

Set up a 3.2 with a 9:1 compression ratio. Port you head and keep your B Poncams. You'll be surprised just how good it will perform on low end. If the budget permits the get some more lift like Paul suggests.

The larger you go in displacement, the angrier the cam you can get away with in a street car.

This is basically what Jim said because I am after low end response and utilize all of my recent mods and use the existing head, I will ask if he intends to port the head.

He is working towards what I want, response for a tough DD and keep the costs down where he can without jeopardizing the build . One that can be changed if I ever wanted to go for power up top.

I know there are many ways to go with this and I could get some serious HP but I do not really want it up top so I will go with what he has recommended for my requirements.

I will ask about getting some more lift and see what he has to say. We have only spoke about this today and there probably be other suggestions to look at as we tie up the loose ends and get a better idea of the cost involved, that is the scary part,haha

Thank you all for your input

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