10:1 pistons, should I use 1 stock gasket or wisecos gasket?

[sledfvr]

So I have 10:1 pistons in my sled and I just put heavy head studs in. I'm wondering if I should use the 3 layered wiseco gasket that comes with the piston kit or just get a stock yammi gasket. I had a wiseco gasket in it last year and it was leaking on my last ride. Probably due to the fact that I hit 26lbs of boost early in the year. I'm surprised it made it that long with stock studs. At least it held until the end of the season.

 

[rxrider]

I have the Wiseco but have never put it one so I'm not sure how it would work, but stock head gasket works great.

 

[mulot30th]

But in his sig he is big bore...

Would the stock gasket be okay for big bore?

 

[sledfvr]

Wiseco sends the same gasket for the big bore as the stocker.

 

[mulot30th]

Wiseco sends the same gasket for the big bore as the stocker.

okay for wiseco

but is it the same hole size as stocker?

 

[sledfvr]

They do. Stock is 74mm and I'm bored to 75mm. The gasket is listed for 74-75mm. If I was bored anymore than that then it would be different gasket.

 

[rxrider]

mulotTurbo - Not reading the sig... bummer !!!

sledfvr - would you care measuring the inner diameter of the gasket so we can compare it to a stock one?

 

[sledfvr]

My digital caliper has as dead battery right now so I don't have a readout, but the sled had a stock gasket in it with the big bore when I got it and I just compared the two and they are both the same diameter. Wiseco's website lists it as part number w6112 for 74-75mm rx-1. I'm just wondering what the difference in compression might be. The stocker is only 2 piece and the wiseco is a 3 piece and seems quite a bit thicker. When I tested it with the stock gasket it had around 178psi in each hole, which seems a little high for a turbo. When I checked it with the wiseco gasket it was only 135psi, but I don't think the rings were seated fully yet. I was thinking of putting a stock gasket in to keep it responsive, but I pull long hills at wot and I don't want to heat soak the motor either. Just seems like a big jump from 178 to 135.