RB Engine Series Basic Infomation

[spd-dmn]

ca18 4cyl carb'd sohc

[icydude]

yeah thats the one, i liek the iron block it has but i wouldn't settle for anything less than a ca18det.

Damien

[tyndago]

With each model change, the RB26 got more torque. That would lead me to believe that, unrestricted, they would also make more power. Call it technological advancement, better efficiency, whatever, they made them better over the span of 10 years.

Call it more boost..... more boost=more torque...................... and the same horsepower ?

[funkymonkey]

you forgot the RB24S
2.4L 6 cylinder carby engine. Came in Cefiros sold in Asia, and thus is dubbed the Taxi Engine

Also worth noting, R32 poverty models came with the awesome CA18i engine (SR20DET conversion platform anyone?)

[TeeDub]

With each model change, the RB26 got more torque. That would lead me to believe that, unrestricted, they would also make more power. Call it technological advancement, better efficiency, whatever, they made them better over the span of 10 years.

Call it more boost..... more boost=more torque...................... and the same horsepower ?

I just figured that if they weren't restricted from the factory, theyd probably make more power too. Isn't HP just the result of an equation using torque? I can't remember.

[funkymonkey]

also the different specs of the engines.

RB25DE and RB25DET all come in a few variants...
first variant without variable valve timing, same PTU as R32
second variant without variable valve timing, smaller PTU and ignition timing controlled by ECU
third variant with variable valve timing
fourth being the NEO engine

RB20E also had the non VVT to VVT and then the NEO-isation, but it didn't have modifications to the PTU from memory.

[got_boost!]

Also, didn't the technological advances in the R34 RB make it easier to get hp out of? I thought I read somewhere that all it took to get 800hp out of the R34 GTR was a chip and some tunning.

[tyndago]

Also, didn't the technological advances in the R34 RB make it easier to get hp out of? I thought I read somewhere that all it took to get 800hp out of the R34 GTR was a chip and some tunning.

I have never heard that falseity anywhere......

Don't believe what you read, but how about someone thats worked on a few GT-R's.

The motor is the same as the R32-R33. The differences are the centerline of the cams, the cam sensor, ignitors built into the coils, and the turbos are a little different. Still ceramic exhaust wheel. Still the same pistons and rods.

[funkymonkey]

I thought I read somewhere that all it took to get 800hp out of the R34 GTR was a chip and some tunning.

wtf? must've been some US mag that's never seen a real RB tuned lol.

[MNW]

I thought I read somewhere that all it took to get 800hp out of the R34 GTR was a chip and some tunning.

wtf? must've been some US mag that's never seen a real RB tuned lol.

LOL

[got_boost!]

Meh... that's why I put it out there. Thanks for the clarification guys

[klys]

can someone clarify this:

I've read somewhere that the RB20DET in the GTS-4 had less HP than in GTS-T..

I know it sounds silly, but I've been wondering about that for a while

thanks

[assman]

same engine

i would image that it puts less hp to the wheels as a gts-t, but at the flywheel it's the same

[icydude]

yeah more drive train loses with 4wd.......

rwd drive i believe is about 17.3% loss fro mthe flywheel.

[funkymonkey]

the GTS4 has 2 diffs rather than 1 for the GTSt therefore the power is more spread out and hence less.

Also the engine turns the flywheel, which goes to the gearbox, and then two shafts turn a diff in the front and the back. So theoretically at the fly the engine should produce the same. But there's other factors like different ECU, different car structure (GTS4's front chassis design being significantly different to a GTSt) etc.