Exedy Brass Button Clutch & Rb25 Boxes

[baby34]

Hi guys,

Just bought an exedy heavy duty button clutch and am starting to hear stories about them destroying RB25 Boxes..

Anyone have any bad/good experience with one?

Would hate to rebuild my gearbox in the future when all i needed to do was just buy a heavy duty

Cheers.

[trel]

imho, if the car isn't being tracked very regurlarly, driven daily etc. a heavy duty will suffice. it also depends on the mod level and power of the car.

a friend of mine is in the process of replacing his clutch in an '05 STI, the workshop recommended he get an exedy standard spec clutch for his 6 speed. He runs 220awkw. According to the workshop, especially with an awd system that installing a heavy duty will increase strain on the rest of his driveline. Rebuilding a 6spd STI box costs an arm and a leg... I would rather change my clutch more frequently than have to go through the process of a rebuild!

remember the weakest link is what will go first... so generally speaking the driveline will cop more of a beating as opposed to the clutch when you upgrade to a brass button or stronger. again there are many variables in it.

good luck.

Edited October 16, 2010 by trel

[Dobz]

Apart from being a prick on the street taking of from a stand still there's no problem using a button clutch on an rb25 box. You can do damage to an rb25 box with just about any clutch if you have no mechanical sympathy ei. dumping the clutch at 7000rpm to get bitches or flat shifting gears to beat a sik dosed up vl.

[bubba]

I had one in front of my 25 box and it didn't break the box, more 2nd gear clutch drops and stabs than I can count.

Aslong as you don't have too much traction, you shouldn't really be breaking things.

[joeyjoejoejuniorshabadoo]

had one in mine for years... 300rwkw and loads of very hard abuse

now have an HHHDBC

[Spurdo]

yea with a 2wd you shouldnt have much trouble because theres far less grip so the tyres are often the weakest link. on a 4wd theres far greater traction so the gearbox takes a lot more strain on the hard launches. also given that the exedy clutches have sprung centers thats always a good thing when your wanting to make drivelines go the distance. the solid center clutches are real harsh on drivelines.

[baby34]

Thanks for all teh replies, am chucking it in next week.. can't wait <=) love the feeeling of a heavy clutchhh

[The Dan]

500+ rwhp on two R33's running standard gearbox with 5 puk button clutches and have never broken a gearbox yet.