Torque Of 25/30 On A Rb25det Box

[drgnball34]

rb25/30 NEO with all the fruit to match. Using t04z 1.00 a/r turbo and npc twin plate. Only time it will be pushing high boost is on the dyno. 99% of other time is sensible street driving on low psi. I want to push the turbo to the limits and see what the engine can achive. Hoping for 620rwhp. Is the box going to totally crap itself at this level? Many factors to account, but for argument sake, perfect condition box. What kind of power level are other people getting away with?

[Adriano]

If your only loading it up on the dyno, it will be fine, as dyno pulls are done in 4th which is 1:1 where there is minimal load on the box. Just try to minimise the shock loading and make sure you cleanly engage the gears on the street(especially 3rd)

[drgnball34]

cool thanks for for input. Anyone have or known of other simliar setups pushing what kind of power levels? Was also told that nismo engine mounts wont do and that the engine will have to be chained down!

[2rismo]

cool thanks for for input. Anyone have or known of other simliar setups pushing what kind of power levels? Was also told that nismo engine mounts wont do and that the engine will have to be chained down!

The gearbox and the engine mounts will be fine - especially if it's a dyno queen. The VL boys are running mid-nines with R33 5-speeds now and they're copping more load than you could ever put through a box on the dyno.

[Ruffels]

yeah a guy i know is professionally drifting his rb25/30 on a standard rb25 box

making about 400rwkw and 800nm of torque i believe, with the shock loadings that drifting puts on all the components

and it has been standing up for ages just fine!!

[drgnball34]

thanks guys for the input. Its reassuring to know because i also got a nos system and want to crack 700rwhp once its fired up.