TFS 225cc Milling
Thread Starter
Instructor
Joined: Sep 2010
Posts: 244
Likes: 0
From: Cleveland Mississippi
TFS 225cc Milling
Alright guys, im looking at buying the TFS 225cc Heads and shooting for the 500+ rwhp mark. I was wondering how much I can mill them without running into ptv issues. I have heard 61cc is safe. What would that put my cr at?Would it be better if i just put a cometec .040 gasket on in without millling? what would the compression ratio then be?
My cam is EPS 234/242 .601/.605 112+4LSA. Probably slightly smaller than g6x3.
I put down 460 rwhp before the nw102 tb and 100mm maf and that was just pulling it right off the street doing a pull then pulling it right back off. Didn't check to see if there was any KR or anything. The car is probably right around 470 rwhp right now. You think I can pull 500+ rwhp with the TrickFlow Heads?
My cam is EPS 234/242 .601/.605 112+4LSA. Probably slightly smaller than g6x3.
I put down 460 rwhp before the nw102 tb and 100mm maf and that was just pulling it right off the street doing a pull then pulling it right back off. Didn't check to see if there was any KR or anything. The car is probably right around 470 rwhp right now. You think I can pull 500+ rwhp with the TrickFlow Heads?
Drifting
Joined: Oct 2004
Posts: 1,790
Likes: 29
From: STL MO
St. Jude Donor '09-'10
I think you will be good, I did 61cc and stock gaskets with the as cast 220's, should be the same head cast minus the cnc'ing. My cam is a little smaller at 235/239, I picked up 40 rwhp with a base tune my tuner did while we drove around for a couple hours. Should be putting it back on the dyno for final WOT tuning within the next few weeks. I expect to hit 496-500 as a final result. I am at 490/447 right now.
Thread Starter
Instructor
Joined: Sep 2010
Posts: 244
Likes: 0
From: Cleveland Mississippi
I think you will be good, I did 61cc and stock gaskets with the as cast 220's, should be the same head cast minus the cnc'ing. My cam is a little smaller at 235/239, I picked up 40 rwhp with a base tune my tuner did while we drove around for a couple hours. Should be putting it back on the dyno for final WOT tuning within the next few weeks. I expect to hit 496-500 as a final result. I am at 490/447 right now.
. Thank you
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Drifting
Joined: Oct 2004
Posts: 1,790
Likes: 29
From: STL MO
St. Jude Donor '09-'10