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Join Date: Oct 2006
Location: Scott AFB, IL
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While I have no vibrations...I have the 5x non-modular and it slipped the first time out at the track WOT shifting. To this day it still slips when my car is in HOM and WOT shifting. I can granny shift in HOM going WOT and it's fine. I can also WOT shift while OFF of HOM and it's fine.
I just spoke with SBC and they want me to send it back so "they can tweak it for maximum clamp load". Thing is my car will be down this whole time. Fuck that.
My biggest thing is this: Stage 5 and 5x have a 6-puck feramic disc. Stage 4 has a full face feramic disc. How in the hell is a Stage 5/5x supposed to hold more power if it's the same material? Coefficient of drag is the same between Stage 4 and 5 because the material is the same. IMO, Stage 4 will hold more power period because there is more surface area. Cooling wise, Stage 5 will have the advantage but thats it.
There is no way my car will just sit for weeks while SBC "tweaks" my pressure plate just to see that this clutch MIGHT hold up on a WOT shift.