Camshafts

[Under Pressure]

My engine: bored .040 over Wisco pistons, big valves ported head,square intake, Van meter, 62lb injectors with chip, t-3 .63AR 15lb boost. I am having my valve guides & seals replaced. I'm going with a hydraulic slider cam. I want a cam with about 270 duration .400 lift about .205 @.050 both intake and exhaust and mainly lobe seperation between 112-114. It's for street driving only. What slider cams do you use and like?

[svono50]

While I am currently using a Motorsport A237 roller, I have used in the past a couple of Engle cams that I would recommend. For your particular combination I would go with the TCS-111H cam. Engle offers a TCS-55H cam as well, but with your injector potential you might as well put in something you won't have to replace later. Both cams have 114 deg lobe centers and have great idle characteristics along with being turbo friendly. I made the most HP with the '111' cam back in my drag racing days based on my trap speeds with each cam. I would recommend combining any aftermarket cam with an adjustable cam pulley, so you can tailor your HP/TQ peaks to where it is most useable for your application. I was able to 'tweak' my ET's by as much as 0.5s by adjusting my cam timing, even though the MPH would remain dead steady. Below are the scanned cam cards from both units. I am sure folks here will have several units for you to choose from, good luck.

7841

[Under Pressure]

I do have a adjustable timing sprocket, It's a Ford Motorsport one that you have to pull off to change position. I haven't changed it much as other things stopped those test. Would you recommend 0* for street or 2* retarded since I've got big turbo? That cam looks good and I know a lot of people used them Thanks Rick

[svono50]

Kind of a tough call, it will be hard to tell the difference between the two settings by the old butt-o-meter. From my old drag racing notes, looks like my best times with the TCS-55H cam was with it set at 2deg retarded. My combo at the time was a 3" DP without cat, ported/polished head/intake/exhaust mfld, modified compressor housing on a stock turbo, which netted a best ET of 14.1's @ ~96mph. You could start there and see how it goes.

[Under Pressure]

I ordered the Engle 55H. Chris at Engle said it's a nice street grind. I will start with the 2*. I'm usually driving in the 3K range which should offer me both Power & 23-28MPG when I stay off the Boost. That's very hard to do. I now have to order new Followers. RockAuto has 3 Clevites $3.40 ea. Summit Crane $91.00, Esslinger $180, Crower $190 On one of the 4 cyl. Ford flat track site Esslinger typed in some of the followers from some places are cheap Chinese steel. I am going to reuse the SCE copper head gasket.