Anatomy Of An Rb20det-r

[Dorigecko]

Hey guys, just saw an incredible video which I practically exploded over.

Mark Skaife's R31 GTS-R race car.

RB20DET-R.

Yeah I know it's rare as hens teeth. but my question is... why?

What is so different about the RB20DET-R that sets it apart from the RB20DET? And how can it rev to a billion RPM without blowing the f**k up?

Any info would rock, thanks guys.

[R31Nismoid]

You are looking at a race car mate, not a road car.

The road going variants and the race car variants were very very differnet.

The RB20DET-R was a red top and came in the HR31 GTS-R only. So not that many made. 800 GTS-R's were made for homologation, so 800 motors at least, but i wouldn't say there would have been heaps of spares made.

However everything that was bolted to the motors was not factory (manifold, coolers etc), so i would imagine the internals would have been of similar tweaking.

So whatever you saw in a video of a race car, was race spec, not street issue.

All RB20's with no exhausts, tubular exhaust manifolds and big turbos scream like banshee's and sound like they are doing 12,000rpm, when infact they are not.

[Dorigecko]

So, internally an RB20DET-R is the exact same? is that what you're saying?

[R31Nismoid]

The same as to what?

[Dorigecko]

... as an RB20DET.

They cannot be the same engine if they're a race-only engine.

[R31Nismoid]

I never said they were the same.

I said the race going version of the RB20DET-R and the road going version of the RB20DET-R were not the same.

They are not the same as a red top ECCS or NICS RB20. The turbo, manifold, ECU are different.

As to anything else, arguable, i've never seen any proof cams, internals were different in the road versions.

[joeyjoejoejuniorshabadoo]

skaify's RACE CAR is not the same as a STREET CAR

the sodet-r is not some freak that can rev to 18,000 from factory.

just like the v8's you see at bathurst these days are not the same motors you can buy in an ss / xr8

[Nic_A31]

So, same internals and shit, just external mods are different?

You could make a 20DET just as hypo using different manifolds, turbo, etc ?

I was under the impression the 20DET-R were forged differently and stronger than regular blocks like the 26s..

[bozodos]

RB20DET-R also had a awesome cool turbo (TO4E IIRC) which had mega lag. Would be good fun to drive I imagine

R31House sell some form of RB20DET-R and can also supply you with a handmade exhaust manifold and Garrett T04E made to their custom specs

They also have a "RB25DET-R" motor which I have no idea has in it.

[R31Nismoid]

So, same internals and shit, just external mods are different?

You could make a 20DET just as hypo using different manifolds, turbo, etc ?

I was under the impression the 20DET-R were forged differently and stronger than regular blocks like the 26s..

What do you mean by just as hypo?

Its been stated quite clearly the only differences are BOLT ON PARTS.

Stuff you can buy off the shelf any day of the week.

[89CAL]

wouldnt they run stronger internals to cope with the constant strains that a race going engine would have to put up with?

Ive seen the R32 that skaife ran, its a wicked looking setup, would love to take it for a drive

[R31Nismoid]

wouldnt they run stronger internals to cope with the constant strains that a race going engine would have to put up with?

Ive seen the R32 that skaife ran, its a wicked looking setup, would love to take it for a drive

Is is stupid week or something?

However everything that was bolted to the motors was not factory (manifold, coolers etc), so i would imagine the internals would have been of similar tweaking.

So whatever you saw in a video of a race car, was race spec, not street issue.

[The Dan]

Is is stupid week or something?

Slap em!

[The Dan]

It's not hard to make a 20 go hard. Have done it many times. Most people think you need to ditch them but they have a heap of potential.

[Dorigecko]

I wanted to know what the difference was between an RB20DET-R, and a normal road-going RB20DET. INTERNALLY.

the answer i've been given is 'nothing'. all you're saying is that the race and the street version are different - not how.

*gives up*

[joeyjoejoejuniorshabadoo]

[Dorigecko]

Had to be a 33 owner to give the absolute least input.

[Nic_A31]

GTS-T JDM spec R33 infact

[esky_mad]

it has JE pistons and nismo rods for starters... followed by custom grind cams of which i dont no specs on, all wrapped up in a nissan motorsport block...

so no its not the same as your typical RB20.

Edited October 29, 2009 by esky_mad

[joeyjoejoejuniorshabadoo]

jdm spec and proud