For quite some time it has been my understanding that the Valeo LTx pressure plate can NOT be made stronger, this is due to the diaphragm spring and overall design. It has also been my understanding that the only way to make higher performance LTx clutches is to use better clutch linings on the clutch disk itself. I know that many people on the board share this understanding.

I decided to call Spec clutch and Clutchnet.com to ask them about their Ltx pressure plates.

Spec informed me that their LTx pressure plates are high clamp and not the same spec as the conventional Valeo. They insisted that they are stronger. Every Spec PP I have seen looked like a conventional Valeo with Blue paint.

Clutchnet.com informed me that their LTx pressure plate has the Valeo diaphragm spring heat treated and the fingers tweaked to provide more clamping power. They told me that their red LTx PP had a force rating of 3220 pounds and would cost $450.00. I am not sure what a stock Valeo measures.

My Local clutch maker stated that the Valeo PP can not be made stronger and was calling BS on the above statements. He said that there was no way to tweak the diaphragm spring or relocate the lever fulcrums like normal pressure plates.

As of now I am still convinced that Spec, Mcleod, Centerforce, Ram, Zoom, Maddog, and everbody else uses the exact same non-upgradeable pressure plate. I base this on internet research but I will confess I have not seen all of the above PP's.

Does anyone have any irrefutable knowledge that the after market clutch manufacturers are able to make the Valeo pressure plate stronger than OEM spec?

Thanks.

 

Great question that I have asked myself at times. Please post if someone gives you an answer off post.

 

I am running the SLP PP and it is identical to the LT4 except for the holes, I verified this by having it pressure checked.

 

I never found anything other than the valeo...I ran that with a RAM 6130 disc.....it normally lasted around 100 passes. Don't try to run it in a street car, its not very friendly

 

Any other thoughts?

 

i think this thread brings up to good of a point to be this overlooked, i too am looking for info on this topic and am happy to bring up a year old thread for the answer. i have the same conclusion as WRD1972 when he says

because thats what all of the facts state. i would love to be proven wrong, who can do it though?

any feedback appreciated.

 

I got into a heated discussion on LS1tech with Jeremy from Spec. He swears they mod the pressure plates and showed a picture of a Spec PP on a pressure testing machine. I ripped apart a stock LT1 PP and an old Spec PP and te fulcrum points were the same.

I will not believe Specs claim till I see a newer Spec PP fulcrum points sompared to LT4. I still beleive that all of the Valeo PP's are the same.

 

I am also calling BS on both SPEC and Clutchnet's claims. ALL companys use the same Valeo LT Pressure plate. Stock Pressure I beleive is 2400#