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Rb26 What Can It Handle?

25 to life
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25 to life Newbie

25 to life

Posted
Posted

i am interested in using an RB26 in my next build up in circuit racing. but to be honest i have no experience with the motor. i just want to know how much HP can the stock internals hold.?????? what can it be bored out to? block quality?? thick cylender walls?? stock red line?? red line with good rods, rod bolts, rods exetra, also how much can the man. tranny hold??( are there two diff. available. one RWD and one for the AWD set up, who makes the tranny). so you know i usually shoot for around 700 rwhp with great response that can handle the 8000-9000 rpm range.

hate to seem like a dummy. but i just want to get a plan together. i have look all over forums and on the web but cant find this simple info. can i get those rates in US specs? please dont hate me cuz i am from the us. if it makes you feel better my familys from down south as well. the south pacific. Tonga. i also have a lot of fam in Australia. i am just messing around now, i know you guys dont care about that.

but back on the subject. thanks for any info given on said engine and tranny.

s/t more, whats up with the rear end, diff, cv joints. etc.??? strong?? weak points to consider????

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Duncan Grand Master

Duncan

Posted
Posted

what sort of power are you looking to run? which turbos?

At up to say 250-300kw and 8500rpm standard internals work fine if you build the motor properly.

More than that and you start needing some changes

25 to life Newbie

25 to life

Posted
  • Author
Posted
what sort of power are you looking to run? which turbos?

At up to say 250-300kw and 8500rpm standard internals work fine if you build the motor properly.

More than that and you start needing some changes

as stated i usually run 700 whp.

what does 250-300 kw stand for in horse power

25 to life Newbie

25 to life

Posted
  • Author
Posted
what sort of power are you looking to run? which turbos?

At up to say 250-300kw and 8500rpm standard internals work fine if you build the motor properly.

More than that and you start needing some changes

are there better years or block numbers than other years??????? or other advantages over others???

ferni Grand Master

ferni

Posted
Posted

Don't think theres any difference between the block years. You can get an N1 block which is suppose to be a bit stronger.

1HP = .75KW to help you convert since we usually talk in KW here.

so up to around 400rwhp on stock internals ( you can push more but it probably wont last long).

700rwhp is up over 500rwkw, thats bit power.... I think you'd be better going for a 3litre bottom end with an RB26 head and but it won't be easy. Good Luck.

R31Nismoid Grand Master

R31Nismoid

Posted
Posted

So saying 6k... when the kit required is the biggest of them all (over 10k in parts) probably isnt a decent example as its not 6k at all... its over 10k

And also putting it in with the example of Ant's car which most certainly is not using the 6k kit either... over 10k i would imagine

ER3498GTT Enthusiast

ER3498GTT

Posted
Posted

If the car is going to be used for circuit then usually tyres, suspension and brakes are the things people play with...

Horespower in circuit racing...often too much of it is counter productive. Good torque, moderate power I'd be going for along with the right set up (tyres, suspension and brakes)

Duncan Grand Master

Duncan

Posted
Posted

500kw in a race GTR eh? bigger than most drag cars? I'm sure it will be a real dream to drive.

I think you will find the group A cars had under 400awkw

What have you raced where you "shoot for 700rwhp?"

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