Rb26/30

[nugget400hp]

G'day guys.

Just wondering who on here is running a 26/30 in thier car, what bottom end and bolt ons you have and what power you are producing.

Just curious because I'm currently building one for my vl street/drag car, I'm looking for mid 9s.

I'm also undecided on which turbo to use, my choices are a 1000hp plain bearing ta45 76wheel and .91 rear ot a 1.00 rear t04z.

Also, I'm unsure on how far to go with the head, springs, valves etc and also cam specs.

I want something that is going to run the times at the track, whilst not being too laggy for street use.

I have a very tough jatco auto behind her which is going to sap the power a bit but it will make up for it with times.

So far my setup consists of...

26 head and standard plenum

cp forged pistons

forged rods

nitrided crank

grub screwed

o-ringed

etc

rochester 1000cc injectors

eXtm custom exhaust manifold

turbosmart 45mm gate

3.5" from turbo back

I'm also undecided on an ECU, can anyone help me there?

With this setup and say the 1.00 t04z would it be unrealistic to expect 450-500rwhp on around 24psi and pump fuel with a good head and set of cams?

What setup are you guys using on the 26/30 and what sourt of power is it producing?

cheers

brad

[TTT]

lazy lazy man!!!

[R31Nismoid]

All the results are here

http://www.skylinesaustralia.com/forums/in...howtopic=104332

[nugget400hp]

ive read that, i wanted a couple of answers, for head, cams, turbo choice etc

[R31Nismoid]

So do you have questions or do you want comparisons?

Because all you did was ask for results, and they are in the sticky

There arent a lot of users on here with a 26/30. And those that have *most* have posted up in the sticky thread.

Also, checking the RB26 dyno sticky will help aswell.

A few people are using T04Z's and have posted up, so obviously a bit of lateral thought application and you can come up with some expected results & parts listed

[nugget400hp]

yeah i just wanted to know, what size cams i should be using and how far to go with the head, also it looks like ill be using the t04z with 1.00 rear so I want to know how far i have to go with the head to make 450-500rwhp comfortably on pump fuel

[Spoolup]

Im using a T04Z with .82 rear - makes full boost at 4100 rpm, so a 1.00 rear will prob be a bit of a lag monster on the street.

[nugget400hp]

is that on a 26/30?

I dont mind too much about lag, as long as i see some posetive pressure by 4,000rpm im happy

I may swap the rear housing for a .91 im pretty sure they come in???

[discopotato03]

I think you would be far better off running a GT3582R at that power level , even then your not really stressing the thing . Running a larger turbo than necessary for a set power level merely lifts the on boost power range upwards . You would expect the boost enhanced torque to be happening under 3500 rpm even with the 1.06 A/R GT35 turbine housing .

Cheers A .

[Spoolup]

go the T04Z :-) - you can always go for more power and know your turbo will be up for it. My aim is to get between 550 - 600 rwhp and that is why I choose it.