LQ4/Milled L92's/PTV question
03-27-2011, 05:42 PM
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LQ4/Milled L92's/PTV question Those who have run this combo, my heads are milled .030 (66cc chambers), MLS gasket, and am looking to go with the 219/227 .607/.614 on 112+5 and am wondering about possible PTV clearance issues. Thanks!
03-28-2011, 10:10 AM
#2
That is a decent amount of milling off of those heads. I know you have a dished piston there but the problem would be the edge where the L92 valve would sit. I would definitely measure clearance before firing it over to make sure you don't have any issues. I really couldn't say for sure if you will have clearance problems or not.
03-28-2011, 11:35 PM
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Well I know the TSP 231/236 LS3 cam is on a 111lsa (unknown advance) with .644 intake lift and no flycutting had to be done on a stock LQ4/L92 combo. I would think with the difference in duration and the less lift/lsa that it would probably be ok.... What do you think about the setup I posted John for a carbed setup in a weekender?
04-04-2011, 01:09 AM
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After doing some research, I've come to the conclusion of what I want for my build...
Stock LQ4 bottom end
L92's milled to 64cc chambers
223/231 .610/.617 on 112lsa, 107icl
MLS gasket
825 BG carb
2004r trans, 3k stall, 3.73's, 3700lb car
Should give a dynamic compression ratio of 8.22:1
Opinions?
Stock LQ4 bottom end
L92's milled to 64cc chambers
223/231 .610/.617 on 112lsa, 107icl
MLS gasket
825 BG carb
2004r trans, 3k stall, 3.73's, 3700lb car
Should give a dynamic compression ratio of 8.22:1
Opinions?
