Updated info: TT hg/pistons
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Updated info: TT hg/pistons
I asked the moderators to lock this thread: https://www.clublexus.com/forums/sho...5&pagenumber=1
While it contains some good info, I found a mistake that's a little difficult to recover from. My calculations are correct, but my claim that TT pistons contribute 4cc's to the clearance volume is just plain wrong. Read Lance's write-up about Motorola Cup specs concerning the head volume, squish, and piston dish, and you'll notice it's actually 13.8cc's.
There's still hope, however. If you can find a 4cc dished piston, then 8.6:1 is what it comes out to. Arias pistons makes a well-respected piston in the 9:1 range which means the dish volume is < 14cc's. (They advertise it at 9.6:1, but that was incorrect because they used an improper dome volume when computing the C/R).
In the end... one TT hg goes a long way at making the NA motor turbo friendly. I just wish TT pistons were the right volume to close the deal.
Sorry guys... my bad.
-scott
While it contains some good info, I found a mistake that's a little difficult to recover from. My calculations are correct, but my claim that TT pistons contribute 4cc's to the clearance volume is just plain wrong. Read Lance's write-up about Motorola Cup specs concerning the head volume, squish, and piston dish, and you'll notice it's actually 13.8cc's.
There's still hope, however. If you can find a 4cc dished piston, then 8.6:1 is what it comes out to. Arias pistons makes a well-respected piston in the 9:1 range which means the dish volume is < 14cc's. (They advertise it at 9.6:1, but that was incorrect because they used an improper dome volume when computing the C/R).
In the end... one TT hg goes a long way at making the NA motor turbo friendly. I just wish TT pistons were the right volume to close the deal.
Sorry guys... my bad.
-scott
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