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Anyone have info on running a solid roller cam with hydraulic lifters. I may be changing my cam in my 418 ls3. I had Patrick G spec the cam I have now and it works great. I had him re spec a cam to see if I could get a little more out of the combo. He recommended going to a solid roller on hydraulic lifters. Also recommended lighter valves. Looking for more of a motor cam but still take a heavy hit of spray. My motor makes power to 6400 and falls off. I think if I could get it to pull higher I could gain some ET.
Current setup
LS3 418 ci
AFR 225s
Fast 90/ 90
12 to1
1 7/8 to 2 stepped headers
direct port and plate N20
cam I have now (Patric G cam)
251/258 .660”/.595” 111LSA +4 advance
Comp LSK/XE high lift lobes
2133R/3663R 111LSA +4 advance (107 installed intake center line)
This is the cam Patrick recently spec ed
Kris,
Here's the solid roller camshaft recommendation that you can run with hydraulic
lifters. This cam will set up just like a hydraulic cam, but you will get more rpm
capability out of it. These are more "endurance" type of lobes than your old cam.
Cam recommendation: 2001 Corvette w/forged 11.7:1 418, AFR 225 heads, ported FAST intake, M6, 4.10 gear, 1 7/8” to 2” stepped headers with no cats, 7000 rpm shift point, 7200 rpm rev limiter, 400 shot N2O.
253/262 .656”/.648” 113LSA +4 advance (with 1.7 ratio rockers)
Comp SP/RP solid roller lobes 54-000-11 3 bolt cam core
4789R/2518R SR113LSA +4 advance (109 installed intake center line)
I gave him the wrong head gasket thickness is the reason the compression is different.
I dunno, but I wonder if you lightened up the valvetrain and stiffened the valve springs, if you might pull higher with the cam you already have. Things get real critical when you start getting that high in RPM's.