How much torque can you get from an RB20/25/26?

[T0nyGTSt]

I've heard of 550Nm from a mild RB26.

As much as 51kg/cm^2 from an Apex AX53B70 on an RB25.

Is 450Nm to 500Nm possible with the right turbo on an RB25 thry the midrange? And why is it not usually measured on a dyno?

Be advised that huge torque is not great idea for stock gearboxes and driveline components.

T.

[meggala]

please dont take this as an sr verses rb my sr 20 made 620 nm of torque wit the trust turbo I think a 2530 or or a gt ss or rs should be able to do that. the dyno graph I have posted in other threads show this and it was measured on the dyno I used

cheers

[JasonO]

I've managed nearly 400Nm peak holding 370Nm to 6krpm, on the stock turbo.

So I can see no reason not to get 450-500Nm with a large turbo and the right support

[Bl4cK32]

My RB31DET should make close to 700Nm, or so im told.

[GTR-Ben]

I have seen over 600NM on a GTR with Twin GT2530's.

[hwystar]

hi there

i live in altona north and own a S2 liner.

i would like more street usable torque and a few more kw too.

all this within the 2500-5000rpm mark. would someone be able to

suggest ways to achieve it?

[Revhead]

T3/4, FMIC, PowerFC, cams if you're keen.

[neil_se]

I made 443N.m today on a low reading dyno. rb20 with hks2530 @11psi (164rwkw).

[maximajim]

JMS made 946N-m with their ecr33

[jmp]

What turbo was on the JMS R33 to pull such a figure? I think anymore than 600 is asking for driveline troubles..

[T0nyGTSt]

http://www.japanesemotorsport.com.au/newr33.html

TD06-25G

T.

[Bl4cK32]

What turbo was on the JMS R33 to pull such a figure? I think anymore than 600 is asking for driveline troubles..

Comparing a car that was built to be on the dyno / trashed at a drift meet cant be compared to a normal street car. If u drive it like u stole it of course it will break something eventually...

As for more than 600 Nm driveline troubles....Which part do u think will break first, the balanced motor, the OS twin plate, the r33 gearbox, the single piece tailshaft or the diff (which can be replaced with a 2 way for $500) on my setup. If the axles go, well replace the rear cradle with a GTR item.

[GTR-Ben]

Stock Gearbox won't last long with over 600NM.

The GTR I was talking about has a OS Giken Gearset, but stock bottom end. Has done numerous low 11 and some mid 10s runs.

[Bl4cK32]

I dont plan on doing numerous low 11 ans 10's...

[T0nyGTSt]

I dont plan on doing numerous low 11 ans 10's...

I wouldn't be so worried. Most likely you'll toast back tyres more than anything else.

T.

[GTR-Ben]

I dont plan on doing numerous low 11 ans 10's...

I was giving you an example of what it can stand up too..

[ajmck]

We made just over 1000Nm 2 weeks ago on AVO's dyno in our R32 GTR.

[awurth]

I made 580Nm out of my RB25 with a GT30 running a microtech. That pulled hard so I would love to feel 1000Nm!!!!!!!

[DESCR8]

Please note that a chassis dyno measures tractive effort not engine torque

[s13viper]

yes but u can work out engine torque from the tractive effort

approx anyway

my CA made bout 320nm @ the tires not bad for a 1.8