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Rb20 Drivetrain Strength

blitzr32
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blitzr32 Newbie

blitzr32

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Posted

hi all,

just wanted to know how much power an r32 rb20det drive train can take. I'm looking for around 400 bhp @ f/wheel. I've heard i need an r33 25t g/box but what about the prop ,diff and halfshafts?

I want to keep costs down but i'm getting a clicking noise and backlash from the drivetrain.

I don't want to get stranded so is it best to upgrade everthing?

thanks for the advice.

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Simon-S14 Grand Master

Simon-S14

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Posted
hi all,

just wanted to know how much power an r32 rb20det drive train can take. I'm looking for around 400 bhp @ f/wheel. I've heard i need an r33 25t g/box but what about the prop ,diff and halfshafts?

I want to keep costs down but i'm getting a clicking noise and backlash from the drivetrain.

I don't want to get stranded so is it best to upgrade everthing?

thanks for the advice.

box will be your weakest link, everything else will hold up just fine.

Tho wehen you start pushing 300 rwkw's and take it to the strip you might find you'll start snapping half shafts with slicks.

blitzr32 Newbie

blitzr32

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Posted

^^^^^ totaly agree with Simon-R32 my rb20 makes 300rwkw and i snapped 3 drive shafts b4 I went to r32 gtr diff and drive shafts no probs since also use rb25 box

thanks alot guys, all i wanted to know. I'll be pushing the limit with 300kw.

BHDave Grand Master

BHDave

Posted
Posted

It depends on usage.

Drift and drag has some pretty high shock loading and will kill the box and drive shafts (and the stock viscous center as well if it's not already dead).

If you are doing circuit days then it's just the box and diff center that need swapping. The rest holds up fine.

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