RB26/30 rebuild question

[Midnight Racer]

Get rb30 block today..

How can i Build the bbotton end that can handle over 1000 bhp for long term use?? or only to use n1 block??

Thanks..

[Bl4cK32]

  Midnight Racer said:

bbotton end that can handle over 1000 bhp for long term

Thanks..

That may be asking a little too much :headspin:

[DaGr81]

spend a shit load LOL u mite get there

[Wazz]

hmm 1000hp.. you'd wanna have bloody deep pockets :S

[Midnight Racer]

I had done for research, but they do not talk about how to build for over 1000bhp

botton end, only can see nearly 550-600bhp

[R31Nismoid]

  Bl4cK32 said:

That may be asking a little too much :headspin:

not at all.

There is a car here in Vic thats been running 550awkw on the RB36/30 and its still gonig strong 2-3years now.

and thats not the most power it can make either

[doubled]

I wonder how many times he has had to rebuild it

Think about it 14ltr truck engines produce approx 500hp and you want to put 1000 through 3ltrs and want it to be reliable...... don't think so!!

[600hp]

I don't think you can make that much power and still have it driving reliably as the more you rev it and the more boost the more strain you have, therefore shortening the engines life.

Also is long term leaving it on the shelf,driving it to work,drags on week nights or a bit of club racing? or some of all of them?

[predator]

japanese build 1000hp GTR all the time.. can't be too hard (notice the tongue out). they often only use a 2.6 block too.

[Alf]

Nispro has built a 26/30 that made a tad over 1000hp.

It's not what you call a daily driver or one to cruise around town, it's more strip oriented.

The work involved in building these kind of engines is mega expensive and time consuming. Nizpro made a stronger custom crank girdle to handle, the list is endless....

[Mr_RB25DET]

sub-zero performance had built a street/drag car before & I am in the process of building one RB26/30 engine....

Nothing is impossible in this world..... hahahahaaaaa......

cheers...

[R31Nismoid]

  doubled said:

I wonder how many times he has had to rebuild it  

Think about it 14ltr truck engines produce approx 500hp and you want to put 1000 through 3ltrs and want it to be reliable...... don't think so!!

not one rebuild, you do it right, you wont have a problem.

This is not a once off either. Heaps of other cars here bet belted around the circuit often and are fine

[doubled]

Yeah just like "top secret's" 1200hp r33gtr travelled all of 400km in last 3years (hpi dvd)

I'm not saying its not possible but physics tells me that "midnight racer" might be struggling for "long term use"

[Ronin 09]

"doubled" -

*have you built any engines - yourself - not a workshop?

*are you an engineer or metallurgist - are you factually stating block strength results of empirical tests or 'seat of the pants' / 'gut feel' type evidence?

*14L truck engines do not produce much power, as they do not operate at high RPM. Note the requirement for trucks is torque to move the mass, not power

*the car R31Nismoid is talking about is empirical / physical evidence that a fully built RB26/31 is capable of long term, high stress (track work) use

[Alf]

  Ronin 09 said:

It sould to me, like many people here, you are more accustomed to watching DVDs and reading magazines / forums, taking as gospel and regurgitating.

I've witnessed it with my own eyes.

Are we talking about 1000hp on pump fuel here or something more exotic?

I have a SBC on gas and I could never afford to drive it everyday that's for sure.

[doubled]

I am a qualified mechanic, and have been out of that for a fair while, I understand that technology changes, but there is still the wear factor & reliability,

and by pushing things well past their "designed power" output i feel that there life expectancy will suffer greatly.

[doubled]

Sorry Ronin09 i didn't realise that we were talking about track work over two years as long term.

[DoughBoy]

Expensive.

[R31Nismoid]

the car has done inexcess of 400km's

And so have many other.

we are talking 20thou, 30thou... cars are still running strong.

Whats so hard to beleive if they are physically there doing it on the track at most track meets each year?

It can, and has been done, and not just once.

If your tuning is right, your servicing resiliant... and you dont have something like a fuel pump fail and starve the engine...

There is no reason why anything cant last years.

[R31Nismoid]

  DoughBoy said:

Expensive.

Does anything come cheap these days ??

(you dont have to answer that question as i know of a few things, un-car related lol)