I hate to start another cam thread, but I'd like a camshaft recommendation.
This is for a 64 Lemans convertible, it will be a street only cruiser, driven to work a few days a week on the interstate, local cruises/car shows. 2.93 posi, M20, Pypes 2.5, R/A manifolds, 65 Tri-power, power brakes, full roller rockers (ratio depends on what you recommend, I have 1.5s now). I want the engine to be all done by 5500 RPM and run on 89. We have 91 octane here now but...
I just bought a fresh never fired 75 400. +.040 TRW, XE262, recon stock rods w/ARP bolts, balanced, pistons are .015 in the hole (I've only measured one so far). It has fresh 6X-8 with no port work, stainless valves 1.77 exh.
I plan to ditch the 6X-8 and use my other fresh 6X-4's, they have some heavy bowl work done and are gasket matched. I plan to disassemble the engine and have the block decked and squared to about .005 down in the hole. I plan to mill the heads to achieve 9:1 static.
I was leaning towards a XE268 cam or a voodoo, before I started looking hard a Sandoval Performance's website and reading more about hydraulic roller cams. Now I'm torn, confused and tired of thinking about it.
I was looking at his L/C2 206/
[email protected] 110 LSA or L/C3 214/
[email protected] 108 LSA rollers or "the daily driver" 224/
[email protected] on 108LSA
It seems that there are only positives with a HR, more torque, less wear, decent idle. Are there any draw backs to having a roller cam with the tri power? Will I see a big drop off in fuel economy with a high lift roller? I'd like to get at least 17 MPG if possible.
The more I read about XE versus VooDoo, I was leaning towards a VOODOO Part Number: 10510702
•Advertised Duration (Int/Exh): 262/268
•Duration @ .050 (Int/Exh): 219/227
•Gross Valve Lift (Int/Exh): .468/.489
•LSA/ICL: 112/108
•Valve Lash (Int/Exh): Hyd/Hyd
•RPM Range: 1300-5500
So what would you do? Is there a good HR that will fit the bill for what I'm trying to do? Or will the roller kill my MPG, (the reason I chose 2.93 axle). Am I better with one of the HFT? Which one?
I do not want a max effort, squeeze every hp out engine.
I've kind of steered away from the OEM grinds because of the low 9:1 compression. Should I just stick a 068 in and be done? I have a crower 60916 on the shelf but I don't think I have enough compression for it either.
Thanks for any recommendations and advice to help un-confuse me.
Dean