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The mkiv Supra Owners Club

Os giken rebuild or RPS max street?


Rinus
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Hi guys,

 

at first got stock clutch...

then came the oppertunity to fit second-hand

os giken twinplate, think now it's time to rebuild the clutch

because the pedal is very deep and when fitting it

the discs they where a bit worn already.

 

rebuilding it wil be as much as rps max street with streetdisc...

 

the maximum what I ever will get out of the engine will

not be more than 500hp (when stock turbo's die, I will go small single)

 

*os giken is a bit to rattling (at lower revs) and

when shifting quickly the tranny bangs a bit...

at the traffic lights it like's to go really slow (no gas, only clutch release and then on to gas) or fullpull...

 

- Am i stupid if I take the rps clutch instead of the os giken??

like to go 2 times a year nordschleiffe and 3/4 drift days a year,

what is the best option for me??

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I have the RPS triple-carbon clutch. DOn't know what exactly the model anme is, just saw it when we dismantled my car before (got it 2nd hand with the clutch already in). I love it, previous owner told me that RPS told him (yeah, maybe load of bull) that if you don't drag or drift the car everyday, the clutch should last forever.

 

IMHO pretty happy with my RPS clutch, although the rattle can be very very annoying. But perfectly streetable, softer than stock. :)

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I think I will go for stock flywheel (absorbs the rattling)and

rps streetmax...

would like to take the carbon but is much more expensive,

isn't it?

also new bearing indeed don't take that risk

and make the clutch pull again,

os giken is with a system that push the clutch...

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I think I will go for stock flywheel (absorbs the rattling)and

rps streetmax...

would like to take the carbon but is much more expensive,

isn't it?

also new bearing indeed don't take that risk

and make the clutch pull again,

os giken is with a system that push the clutch...

 

exactly what i have hear and works like a dream not hard to take off easy either in traffic as some people said to me it would be a pain

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ok than will take rps...best of both worlds

cause I don't think will go any further than 550hp,

is there good upgrade for the "weak" j-spec turbo's

and I don't mean uk-turbo's, cause than has to change the

exhaust manifold...

like to make more than 1.2bar(thats max for these turbos),

also need a little bit bigger injectors I think,

and will the walbro 255ltr do the job?

 

I'm running 1.0 bar now...

 

1st cat empty, 2nd decat(hks),catbackhks,

NO restrictor ring:blink:,

with ring 0.8bar

 

I emtied 1st cat, because I bought complete

uk exhaust and that didn't fit at the turbo elbow...

could not wait anylonger,

first fitted it with ring cause was thinking it would spool up

the turboos too much,

0.8....

so tried it without the ring and that was the best

upgrade till now:d

 

 

 

*maybe better new topic??

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