Ok,
I would like to hear comments on two cams that are currently ocupying storage space in my garage.
I'm building a weekend toy for street use, but it will also see some twisty track racing. (not 1/4 mile)
Which one should I go with, and why?
1) Eagle 46: 314 degrees advertised duration, 11,48mm lift ( .452" )2) Engle W130: 308 degrees advertised duration, 10,64mm lift ( .419" )
3) custom made, any spec: give your recommendations for a race cam that pulls strong from 3000 to 7000The engine will be built with stock ratio rockers. ( 1.1:1 )
Other engine specs:
Stroke: 78mm Bore: 90.5mm Rod: longer than stock Scat rod Pistons: forged B type, intended for 82mm stroke Heads: 40mm intake, 35.5 exhaust (relatively small, for better low end ) Valves unshrouded somewhat (not going to sacrifice compresison and squish area too much) and these have long reach plugs.
Compression will be high, haven't decided yet but if I say 11:1 then we are close. (we have high octane pump gas, and this baby could also get racing gas...:)
Rev limiter will be set to something like 8000 just in case, at least during break-in period ;)
I should say that we routinely build 1641cc engines that rev up to 9500 and 10,000 rpms and produce 150-160hp... and compression ratio can be as much as 13:1 (custom made cams). I'm targeting something like this, but BIGGER, and slightly tamed for street use.
Jan