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hey guys, iv got an r32 with 30/25 in it and at the moment it has a hr31 box on it.

im looking at putting a 33gtst box on it as the motor maks around 400rwhp. and id

like something a little tougher...

so 1st question would be, does anyone whos done this think its a good box to use?

if not what else would be a good opption?

and if 33 box seems to be the way to go, what has to be done to fit it?

cheers beau

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I don't know about converting from R32 to R33 gearbox, BUT, the R33 gearbox will bolt direct to the motor, no issues there, you MIGHT need to change tail shaft, gearbox mount to chassis and clutch stuff though.

The R33 RB25DET gearbox is excellent behind an RB25/30DET.

My engine at the fly is making some where between 450 and 610HP... Car can't keep traction in 4th on the rollers... (Top figure is calculated from the fuelling it's using) and I drive it on the track and at motorkhanas... Shifting hard alot at full tilt... Hasn't died yet.

  • 2 weeks later...
I don't know about converting from R32 to R33 gearbox, BUT, the R33 gearbox will bolt direct to the motor, no issues there, you MIGHT need to change tail shaft, gearbox mount to chassis and clutch stuff though.

The R33 RB25DET gearbox is excellent behind an RB25/30DET.

My engine at the fly is making some where between 450 and 610HP... Car can't keep traction in 4th on the rollers... (Top figure is calculated from the fuelling it's using) and I drive it on the track and at motorkhanas... Shifting hard alot at full tilt... Hasn't died yet.

ahh k i will try do some more research on tail shaft, box mounts and speedo sender etc thanks for help mate

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