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Gtr Boxes?

GTR 94
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GTR 94 Mentor

GTR 94

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Posted

just a quick question, wondering wat sort of power a stock gtr gearbox (roughly 100,000kms) is capable of holding before you start pushing it to its limit??

i know there are a few ppl that will say, depends wat clutch you got? and depends how you change gears?

but im just looking for a rough idea.

thank you.

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GTR 94 Mentor

GTR 94

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yeah ok thanks. i was just crusing around the forums and found a lil info on some boxes and stuff. just so you have more of an idea, im running a t51r, 2way lsd and a giken triple plate. i didnt really wanna push it past 400rwkw, but am starting to think, why such a turbo if im not gonna open it up, so im now trying to work out wat box to run. a friend of mine has a trust 6 speed straight cut (quiaf or watever) for sale, but am concerned about rumours that i need to rebuild it every 5000km??? this is somthing that i am not keen on, should i be concerned?

the car will be mainly street driven on special occasions, but will hopefuly make a few track meets and drag events, if all holds together. :thumbsup:

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Fitzpatrick Speed Works Mentor

Fitzpatrick Speed Works

Posted
Posted (edited)

Your combo is a recipe for lunched boxes, haha no disrespect just as you are obviously aware the standard item isnt going to be up to that turbo, clutch or diff!!!

PPG from personal experience are awesome.

OS are good and economical so make a good option and would suit your purpose.

Trust had no personal experience so I wont comment on hear say!!

Edited by Fitzpatrick Speed Works
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monga Experienced

monga

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Posted

Depending on how you change and what clutch you have can factor in how long your box will last, power shouldnt matter unless your going over 600rwhp and wanting to blast gears

I destroyed box1 with 390rwhp with exedy twin plate shifting to fast and dropping the clutch

I destroyed box2 with morehp with the same clutch shortly after the drags, first started the noises from box then bang when i shifted

The third box has being fine and lastest for ages because iv treated it nice and shifted normal ..

once there into gear there fine

treat it with love and your fine

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