LQ9 compression ?
01-29-2015, 07:53 PM
#1
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LQ9 compression ? i found this for the LQ4
looking for something similar for the LQ9
the plan is 69 cc combustion chamber 243 on LQ9
also need some cam suggestions this is going in a truck
have intensions of adding a little spray latter also
looking for something similar for the LQ9
the plan is 69 cc combustion chamber 243 on LQ9
also need some cam suggestions this is going in a truck
have intensions of adding a little spray latter also
Last edited by bcearley; 01-29-2015 at 08:28 PM.
01-29-2015, 08:22 PM
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A Chevy Luv truck or a quad axle dump truck ??? 2006 crew cab 1500 Z71
trans 4L80
converter Stock
gears 3.43
weight ?
tires oversized mud tires
intended usage towing mostly
how much spray ?
what intake stock truck intake
headers/exhaust not sure yet
stock 243s or ported ported
hand or CNC CNC
what head gaskets stock LQ9 gaskets
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trans 4L80
converter Stock
gears 3.43
weight ?
tires oversized mud tires
intended usage towing mostly
how much spray ?
what intake stock truck intake
headers/exhaust not sure yet
stock 243s or ported ported
hand or CNC CNC
what head gaskets stock LQ9 gaskets
Help us help you
01-29-2015, 08:23 PM
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Add 0.70:1 compression to the table you have and it applies to the lq9. Cant confirm but you should have 10.96:1 compression using stock lq9 bottom end with stock head gaskets and stock 243s.
01-29-2015, 09:32 PM
#5
so quite heavy vehicle....6000lbs or so/ heavier when towing
medium gears made even worse with bigger taller tires
no stall converter
stock exhaust
about the only thing helping you is some decent heads and bumped up comp
I'd call Geoff at EPS and plan for a small fuel efficient torque cam in the 212-218 @ .050 range with 570"-580" beehive friendly lift
medium gears made even worse with bigger taller tires
no stall converter
stock exhaust
about the only thing helping you is some decent heads and bumped up comp
I'd call Geoff at EPS and plan for a small fuel efficient torque cam in the 212-218 @ .050 range with 570"-580" beehive friendly lift