Blower cam in a NA LS3?
05-01-2019, 08:15 AM
#2
You can use this cam but your bottom end and mid range will be kind of soggy.
Although it will spin to around 7000rpm because of the late IVC and early EVO. This is also why your bottom end and mid range won't be that good.
The supercharger would take care of power in this rpm range. a 225/244 118LSA +4 would worker better with a wider power band and excellent top end.
Ideally those specs on a 113 LSA with 3 degrees of advance would certainly work better NA and have the power come on sooner and you would make more peak torque and hp.
I have used a blower camshaft before on an NA and didn't like it.
Throttle feel was just too soft.
Although it will spin to around 7000rpm because of the late IVC and early EVO. This is also why your bottom end and mid range won't be that good.
The supercharger would take care of power in this rpm range. a 225/244 118LSA +4 would worker better with a wider power band and excellent top end.
Ideally those specs on a 113 LSA with 3 degrees of advance would certainly work better NA and have the power come on sooner and you would make more peak torque and hp.
I have used a blower camshaft before on an NA and didn't like it.
Throttle feel was just too soft.
05-01-2019, 08:34 AM
#4
05-02-2019, 06:14 PM
#8
I ground myself a 226/242 on 117+3.5 cam years ago for my 402. Very mild cam that has allowed my basic stock Ls3 top end stroker perform very well for what it is.
in general you don’t see shelf cams ground like this for NA applications as they aren’t very sexy, and don’t set butt dyno records. A tight center cam, 112+4 will peak hard and fast, go rumpity rumpity, and give a much stronger shove in the midrange where most people drive.
in general you don’t see shelf cams ground like this for NA applications as they aren’t very sexy, and don’t set butt dyno records. A tight center cam, 112+4 will peak hard and fast, go rumpity rumpity, and give a much stronger shove in the midrange where most people drive.