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The difference in RX and XT6 clutches.


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Called Clutchmasters today and talked with Lonnie. I ask him the difference between the two. He put me on hold for a minute and came back and told me that from the mounting surface on the flywheel to the surface that the clutch engages is different by .012 inches.

 

The RX is 0.827 and the XT6 is 0.815.

 

He states that the difference of .012 will not let the XT6 pressure plate clamp fully onto the clutch disc and there MAY be slippage in the RPM range.

 

 

I have read that some people have used this cluch kit with the EA82 flywheel without problems.

 

I had ScotTM measure the flywheel I had lightened and resurfaced with a micrometer and he can't seem to get a consistent reading. (I'm 40 min. away) From 0.815 to 0.825.

 

Any thoughts from anyone?

 

I could take the flywheel back and have the pressure plate mounting surface milled but .... Hmmm Looking for a bit of input.

 

 

Regards,

 

Jay

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Mine is an XT6 flywheel, pressure plate, and disc inside a 5sp D/R behind an EA81HO. This is for the '86 Brat

 

I will be using the EA82 flywheel turned to XT6 specs. Only reason is this flywheel has been lightened. This one will also go inside a 5sp D/R behind an EA81HO. This is for the '85 Brat

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12 thou ain't much. I wonder what the wear tolerance is.

When the PP contacts the clutch disc, is it fully extended?

Or does it have additional travel as the disk wears?

When the flywheel is turned, do they turn the PP mounting surface too?

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even the XT6 clutch isnt enough for modded EA82Ts in my opinion, mine will sit and burn through hard launches and i still havent figured out how im going to get around that at the track.

 

its alot better than the stock unit though...ive smoked brand new ones at mild boost levels before with out really trying.

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From what I've gathered, you have to ask them to cut .012 off of the pressure plate mounting surface to get the correct depth in the "step" for the clutch disc.

 

XT6= 0.815

Ea82= 0.827

 

0.012

 

I learned of these measurements from clutchmasters, I would really like another source to verify it though.

 

Anyone?

 

Regards,

 

Jay

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