Anatomy Of An Rb20det-r

[sneakey pete]

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*

Think if it as 3 different engines.

Regular Rb20det, sold in regular r31's:

regular stuff

Rb20det-R: sold in a few gts-r's that nissan sold so they could race them:

slightly more than regular stuff, but nothing crazy, someone else can tell you the specifics, because i don't know

Rb20det-r, "race spec": used in the r31's that were raced:

Heaps of insane stuff to make them last longer, put out more power, etc. Again, ask an expert.

Basically, the det-r sold to the public is a step up from a det, but not what they used in the racecars.

(well, i hope i got that right, i'd look silly if i didn't)

Edited October 29, 2009 by sneakey pete

[Dorigecko]

jdm spec and proud

it's an import dude. bought from the "Japanese Domestic Market. it was JDM they day it was built. you saying it's JDM is just retarded.

thanks eskydude. not that i don't trust you, being a stranger on the internet, but could you confirm that?

i don't know much about nissan motorsport history - interests me quite severely. thanks though.

thank you also pete. shedding some light on topic.

Edited October 29, 2009 by Dorigecko

[esky_mad]

quoted (to a degree) from the member on this forum who owns the car.....

[Nic_A31]

He's got a Ceffy - so we'll assume he doesnt talk through his ass ?

x2 for Jason, can you confirm? Nismo back in those days??

[esky_mad]

so much uncertainty for something so pointless. remember that these cars were raced in japan aswell...

exact quote from the owner of the aforementioned car, if this doesnt help you, nothing can......

Motor basics below.....the rest of the driveline also plays a big part in the performance of the car.....hope this helps.

R31 GTS-r intercooler(sort of....there a GMS story behind it)

8:1 compression for the high comp motor. 7:1 compression for the low comp motor

21PSI on the high comp. 23PSI on the low comp

Nissan Motorsport Block

Custom grind cams(have fun finding blanks)

JE pistons

Nismo Rods

Standard Crank

Garret 3/4 turbo(non BB)

Titanium Exhaust Valves

Stainless Inlet Valves

GMS Sump

Electromotive ECU(Go Motec.....we have to run the original ECU)

PWR Radiator

[R31Nismoid]

lol @ RB20DET-R's having a Nismo block with Nismo Rods and American pistsons...

Does this honestly look like a car with a forged motor???

The RB20DET-R made less power than the silver top for gods sake. There is nothing special internally about it other than bolt on goodness to pass homologation requirements.

And then even after that all the parts were changed anyhow as is what happened back in the GrpA days.

If there were some mystically awesome internals the internet would be littered with information, however people that have pulled down original RB20DET-R's have never noted anything out of the ordinary down.

I think the only thing was the butterflies in the plenum like a NICS motor (even though it was ECCS). Which is nothing to get excited about and i can promise you would not have been in the race-spec motors.

[R31Nismoid]

Dorigecko - You asked why they were rare

1. It is because only 800 were made for homologation.

You then asked why Skafie's was different:

2. Because it was race-spec.

[R31Nismoid]

so much uncertainty for something so pointless. remember that these cars were raced in japan aswell...

exact quote from the owner of the aforementioned car, if this doesnt help you, nothing can......

Motor basics below.....the rest of the driveline also plays a big part in the performance of the car.....hope this helps.

R31 GTS-r intercooler(sort of....there a GMS story behind it)

8:1 compression for the high comp motor. 7:1 compression for the low comp motor

21PSI on the high comp. 23PSI on the low comp

Nissan Motorsport Block

Custom grind cams(have fun finding blanks)

JE pistons

Nismo Rods

Standard Crank

Garret 3/4 turbo(non BB)

Titanium Exhaust Valves

Stainless Inlet Valves

GMS Sump

Electromotive ECU(Go Motec.....we have to run the original ECU)

PWR Radiator

That is the RACE SPEC not the normal RB20DET-R you would buy from a wrecker (if you could find one).

Dorigecko has clearly become confused, so im making nice and clear - that above specs ARE NOT THE FACTORY ONES.

[esky_mad]

the quote im giving is from the ex-skaife car.... not a road going version.

EDIT: which im fully aware of.... it would seem to me that after he saw the video he wanted to know the specs on THAT motor, not the road going version...

Edited October 29, 2009 by esky_mad

[Dorigecko]

nismoid, tone down the arrogance dude. it's discussion time, not 'i'm right you're wrong shutup' time. chill the f**k out.

so, i've gathered now -

RB20DET-R was in race-spec vehicles, with race-spec external modifications.

800 units were made, some of which used and built as group A race engines here in oz, some used in japan for race, rest kept as standard red-top eccs in GTS-Rs. yeah?

Skaife's was f**king boss.

The hard-revving sound isn't actually hard revving.

[joeyjoejoejuniorshabadoo]

it's an import dude. bought from the "Japanese Domestic Market. it was JDM they day it was built. you saying it's JDM is just retarded.

actually.... you being ignorant to the fact that the acronym JDM has been colloquially applied to a particular form of styling is retarded

[Dorigecko]

actually.... you being ignorant to the fact that the acronym JDM has been colloquially applied to a particular form of styling is retarded

what, a massive cannon and a sticker saying jdm-spec?

get outta my thread because you clearly don't know a goddamn thing about its content.

Edited October 29, 2009 by Dorigecko

[joeyjoejoejuniorshabadoo]

nismoid, tone down the arrogance dude. it's discussion time, not 'i'm right you're wrong shutup' time. chill the f**k out.

so, i've gathered now -

RB20DET-R was in race-spec vehicles, with race-spec external modifications.

800 units were made, some of which used and built as group A race engines here in oz, some used in japan for race, rest kept as standard red-top eccs in GTS-Rs. yeah?

Skaife's was f**king boss.

The hard-revving sound isn't actually hard revving.

ok....

race spec rb20det-r were in race spec cars

street spec rb20det-r were in street spec cars sold to public

2 different things

[joeyjoejoejuniorshabadoo]

what, a massive cannon and a sticker saying jdm-spec?

get outta my thread because you clearly don't know a goddamn thing about its content.

lol... try, mostly go fast mods, not much cosmetic, low, fitment.

car makes 320rwkw

pretty sure that's JDM right there

so back on track then...

[Dorigecko]

try, mostly go fast mods, not much cosmetic, low, fitment.

car makes 320rwkw

sounds familiar:

fully JDM right there hey.

[Dorigecko]

http://www.youtube.com/watch?v=L2jbS3t77Fw...feature=related

this is ultimately a sound I want to achieve - or rather would like to make nic achieve.

[joeyjoejoejuniorshabadoo]

no fitment but yeah... lol... i'll pay that

[joeyjoejoejuniorshabadoo]

http://www.youtube.com/watch?v=L2jbS3t77Fw...feature=related

this is ultimately a sound I want to achieve - or rather would like to make nic achieve.

strip your car and you're half way there... srsly

[Nic_A31]

No, I wnat that sound, but I want to keep my JDM interior.

OK no shit, I am interested in getting a hypo 20, Jason is interested about 100x more and has me at gunpoint on the matter, BUT I want to keep my true JDM import semi driveable for street, ie, include interior and shit.

[Dorigecko]

try this one perhaps. this is ex-skaife, and it sounds HORN.

and dude you're not funny. go'way please. don't care how fully sik powerfulz your car is, i want history and you're giving me pretty much nothing.