Sunday, December 15, 2013

Comp Cams XE250H Camshaft

I happened to find a Comp Cams XE250H camshaft on sale in FMOC forum and decided to buy it. It had been installed in an engine but had not been ran so it was basically new. According to Comp Cams webpage, it offers "very strong torque, excellent mileage, smooth idle". Sounds good so I compared the specs a bit.

Parameter Original XE250H
Intake duration 266 250
Exhaust duration 244 260
Intake duration @ 0.050" 198 206
Exhaust duration @ 0.050" 198 212
Intake valve lobe lift 0.2303" 0.289"
Exhaust valve lobe lift 0.2375" 0.296"

I found the original cam specs from an online discussion so I'm not sure how accurate they are.

The XE250H seems to have more lift and duration when compared to the original but it is still a really tame camshaft that will probably run out of steam at about 5000 RPM. Oh well, my engine probably will not see those RPMs often so it should be fine. Especially with original intake, heads and exhaust. We'll see when the engine runs next time...

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