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JantzenOKC · 10-01-2015, 03:19 PM

Well since I'm down a motor and the racing season is almost over here anyway, I'm thinking about building a forged motor. What does everyone think the best compression ratio would be for the LFX with twin turbos? Since I would be getting a custom set of pistons made, I could probably make it whatever I wanted. I know Gretchen had some made and was at 10:1 but I don't know if I would really need to be that low or not since we have direct injection. I remember him saying it was missing a little power when not in boost. I wonder if he could do it over again if he would have still went with 10:1 or would he have went a little higher..

Thoughts?

10-01-2015, 03:19 PM	#1
JantzenOKC Drives: '13 2LT/RS Twin Turbo Join Date: Aug 2012 Location: Edmond, Oklahoma Posts: 3,073	Optimal compression ratio for boost? Well since I'm down a motor and the racing season is almost over here anyway, I'm thinking about building a forged motor. What does everyone think the best compression ratio would be for the LFX with twin turbos? Since I would be getting a custom set of pistons made, I could probably make it whatever I wanted. I know Gretchen had some made and was at 10:1 but I don't know if I would really need to be that low or not since we have direct injection. I remember him saying it was missing a little power when not in boost. I wonder if he could do it over again if he would have still went with 10:1 or would he have went a little higher.. Thoughts? __________________ 3.6L Twin Turbo V6 Garrett GT28 turbos -- Jacfab forged connecting rods -- Diamond forged pistons(10.5:1) -- Alky Control Methonal Injection -- CircleD 2E triple disc torque converter -- BMR suspension 10.75 @ 131mph