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The mkiv Supra Owners Club

Which clutch ?


zorglub

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RPS,Ive had one fitted in mine,They are a bit of a bitch to get used to but they are good when you do get used to them,They are slightly heavier than stock but then my girlfriend who is tiny basically gets straight in and drives it no problem!

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For BPU you shouldn't need anything more than a stock one. If you have plans for bigger power then maybe consider an aftermarket one. Some of the RPS pressure plates can result in a heavy pedal feel, to retain a stock feel try something without too much increase on the pedal pressure.

 

I went for a Southbend one (thanks to the advice from Vortex) as it was only very slightly heavier than stock yet has a lot more power handling.

 

One word of warning - make sure your flywheel is 100% okay, last thing you need is to fit the clutch to find the flywheel is shagged! It's worthwhile getting this replaced when a new clutch goes in.

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Did that include an RPS pressure plate and bearing? I heard these are a have a fair bit more clamping pressure than stock (25%+).

 

everything but the bearing,i used a stock toyota bearing,dont think they do a bearing,at least there wasnt one in my kit,its a real easy clutch to use though.

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The RPS line is a bit confusing because there are two parts to the name, one for the pressure plate and one for the disc. There are 2 types of pressure plate, Max and Sport. The Max is 38% stiffer that stock and the Sport is 10%. Then there are 2 types of disc, street which is just a standard Toyota one, and a 6 puck one.

 

So there's actually no such thing as just a RPS street. There is the Max Street and the Sport Street which both have a standard Toyota disc but with different pressure plates. Sport Street is supposedly good for 525 ft/lbs or torque, Max Street 660 ft/lbs. Then there are the Sport with 6 puck which is supposed to hold 600 ft/lbs and the Max with 6 puck which is 825.

 

So probably some of the people who are saying they have a RPS street have the Sport one and some have the Max one. The Max definitely feels pretty stiff.

 

The other thing you need to think of with clutches is whether you have the standard flywheel or a lightweight one. If you have the standard fly you want an unsprung disc. If you have a LW fly you want a sprung disc. The street clutches from RPS are unsprung (as they use the normal Toyota disc). If you want a sprung one you have to go for the 6 puck versions, which come as either sprung or unsprung versions. It's the same with SouthBend, they have sprung and unsprung versions.

 

I had a sprung SouthBend kevlar clutch and the pressure plate was great, felt just the same as stock. But the sprung disc was rubbish, it broke up where the springs were mounted - there's a photo on here somewhere. I think if I was buying a new one now I would ideally go for a South Bend pressure plate with a different disc, something like the Horsepowerfreaks bronze one. If you're just BPU though a standard one will be fine, or a South Bend pressure plate with a standard disc.

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