Competition Engine Build
#11
Formerly ScreamingL
Would not want the heavy valves for that combo so stick with the 799s
Also LS7 lifters will be fine, ive built more then enough combos with Ls7 lifters spinning over 7000rpms
At 8000rpm youre gonna have oiling issues as the pump design for LS motors wont be happy
If you can stay under 7500 youll be better off
Intake from 07+ will support what youre trying to do
Have the stock exhaust manifolds extrude honed
Also LS7 lifters will be fine, ive built more then enough combos with Ls7 lifters spinning over 7000rpms
At 8000rpm youre gonna have oiling issues as the pump design for LS motors wont be happy
If you can stay under 7500 youll be better off
Intake from 07+ will support what youre trying to do
Have the stock exhaust manifolds extrude honed
#13
Staging Lane
Thread Starter
So likely the best bet for me to is to set the limiter at 7,500RPM. I would like to stay away from Solid Roller Setups to avoid the extreme costs. While this is a Competition Build, I don't wanna break the bank entirely. Also, what do you guys recommend for a camshaft for a build like this? Staying stock cubic inches for at least two years, looking to mill .050" off 799 Heads and fly cut pistons. Large Race Camshafts that top out around 7,500RPM and will work with stock components
#14
Formerly ScreamingL
i personally would not mill the heads .050,
how is the target CR?
any cam that is going to work well up top is going to lack all bottomend needed to move that sled, this one will be a hard one
a cam along lines of 242/244 610/612 110 comes to mind....Its referred to as Trex its a cam that makes all power above 5000 and pulls to 7000 and some have shifted this at 7400
its a old thunder racing setup, the 110 will keep it peaky and tight RPM range which youll need since youll be at high rpm
down fall is youll need a piston with a good deep valve relief and milling is out of question
cam works great with 11-11.5 cr
originally intended for all out motor application back in early 2000s and for longest time held the cam only record for fastest LS motor
sounds mean as **** to
how is the target CR?
any cam that is going to work well up top is going to lack all bottomend needed to move that sled, this one will be a hard one
a cam along lines of 242/244 610/612 110 comes to mind....Its referred to as Trex its a cam that makes all power above 5000 and pulls to 7000 and some have shifted this at 7400
its a old thunder racing setup, the 110 will keep it peaky and tight RPM range which youll need since youll be at high rpm
down fall is youll need a piston with a good deep valve relief and milling is out of question
cam works great with 11-11.5 cr
originally intended for all out motor application back in early 2000s and for longest time held the cam only record for fastest LS motor
sounds mean as **** to
#15
Staging Lane
Thread Starter
I was looking at the EPS 236/248 I believe camshaft because I have seen them have good results and the split seems to make good power down low. Also, I was considering bumping compression up around 12.5/13:1 with 799 Heads and DSS +15cc Dome Valve Relieved Pistons and Scat Rods as a cheap alternative to bump compression and add reliability
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