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The mkiv Supra Owners Club

5 speed Twin Turbo


Guest Supraman3.0

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Guest Supraman3.0
why not convert the car you got?

 

yes, I'm planning.

 

5 speed gearbox into my tt. is the power from the tt engine to high for the gearbox?

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depends what 5 speed box you are running, most likely to be the w58. Im using the w58 with my TT and its taking it fine, other people shred them to bits!!

 

suposanly they can take 400hp, but not constant thrashing. Soon as i save enough im buying the r154 gearbox which is the stronger option.

 

there is alot more than just the Gearbox you need by the way, clutch and so on.

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Depends what power you are pushing out. The w58 (stock na box), depending on condition can hold 400 bhp 400 torque, with a decent clutch flywheel. Abuse it and it will die suddenly. Whifbitz sell good clutches for this conversion.

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As welshbuddy says mate. The R154 is a better option, or preferably a Getrag 6 spd, although they are pricey.

I also have a w58 in my TT, with a stage 4 competition clutch, and stock flywheel (at the moment)

Handles it fine and im more or less bpu.

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Mine is the Stage 4 ceramic mate. Handles it very well. Around the same price. The one you are looking at will be fine too I expect. Best thing to do is what I did, and discuss it with Paul Whiffin (Whifbitz owner) and he will suggest the best one for the job you want it for :)

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Guest Supraman3.0
On stock torque it will be fine ( its torque that kills boxes not power, and lots of drag starts)

 

and bpu?

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As welshbuddy says mate. The R154 is a better option, or preferably a Getrag 6 spd, although they are pricey.

I also have a w58 in my TT, with a stage 4 competition clutch, and stock flywheel (at the moment)

Handles it fine and im more or less bpu.

 

As previously stated

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I have a good strong W58 and lightweight flywheel and 6 puck clutch kit in the forsale section, ive been running a single turbo mild power at 450 and its been great, ive just upgraded to R154 so now selling the W58 kit, pm me if your interested.

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