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R154 Clutch slipping?

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Old 08-06-14, 09:24 AM   #1
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Default R154 Clutch slipping?


I have an SC300 with a 2JZGTE/R154 with PT6266. I just got my car tuned and it made 560whp and 490tq. I also recently purchased and installed the Driftmotion Stage 4 clutch kit thats supposed to be good for up to 600tq.

Now whenever I do hard pulls and shift quick from 1st to 2nd or 2nd to 3rd it feels like the clutch is slipping. Boost is there, RPMs rise up quickly, and the wastegate is screaming but the car doesnt move.

If i do a hard pull and shift slowly everything works fine and the car moves like a freight train.

Is this a clutch problem or is it something else?

here is the clutch kit that i bought

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Old 08-06-14, 01:37 PM   #2
gte & na-t
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Clutch my friend you need a better clutch.

That's weird though , because act usually holds the power even though they are one of the crappiest clutch ever.
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Old 08-06-14, 01:56 PM   #3
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"This kit utilizes an Action 6 puck ceramic/metallic disk with an ACT Extreme 3000lb pressure plate"

so the clutch itself is an Action 6 puck. what clutch do you guys suggest i go with? a twin disk?
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Old 08-06-14, 01:56 PM

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