318 cam

YY1 said

What would be great is if someone who understands the intricacies could look at that 6900 and compare it to say....the comp 250 and explain what the differences are and more importantly what they mean and why you might want one over the other in certain situations.

Click to expand...

I'm no expert, but to me looks like similar cams and output wouldn't be to far off from each other, the xe250h has a tighter lsa and faster ramps so probably a better under the curve performance,, but I'd imagine the differences wouldn't be overly huge. I'd would go with xe250h mainly cause of the 110 lsa. There basically similar to a stock 340 cam.


Brand:
COMP Cams
Manufacturer's Part Number:
CL20-220-3
Part Type:
Camshaft Kits
Product Line:
COMP Cams Xtreme Energy Cam and Lifter Kits
Summit Racing Part Number:
CCA-CL20-220-3
UPC:
036584046813
Cam Style:
Hydraulic flat tappet
Basic Operating RPM Range:
800-4,800
Camshaft Use:
Street/Strip
Intake Duration at 050 inch Lift:
206
Exhaust Duration at 050 inch Lift:
212
Duration at 050 inch Lift:
206 int./212 exh.
Advertised Intake Duration:
250
Advertised Exhaust Duration:
260
Advertised Duration:
250 int./260 exh.
Intake Valve Lift with Factory Rocker Arm Ratio:
0.432 in.
Exhaust Valve Lift with Factory Rocker Arm Ratio:
0.444 in.
Valve Lift with Factory Rocker Arm Ratio:
0.432 int./0.444 exh.
Lobe Separation (degrees):
110
Grind Number:
XE250H



Brand:
Summit Racing
Manufacturer's Part Number:
SUM-6900
Part Type:
Camshafts
Product Line:
Summit Racing™ Classic Camshafts
Summit Racing Part Number:
SUM-6900
UPC:
190861036260
Cam Style:
Hydraulic flat tappet
Camshaft Use:
Street/Towing
Camshaft Manufacturers Description:
Smooth idle, excellent low-end torque/horsepower, towing, good fuel economy in stock engines. Good camshaft for turbocharging.
Basic Operating RPM Range:
1,200-5,000
Intake Duration at 050 inch Lift:
204
Exhaust Duration at 050 inch Lift:
214
Duration at 050 inch Lift:
204 int./214 exh.
Advertised Intake Duration:
278
Advertised Exhaust Duration:
288
Advertised Duration:
278 int./288 exh.
Intake Valve Lift with Factory Rocker Arm Ratio:
0.421 in.
Exhaust Valve Lift with Factory Rocker Arm Ratio:
0.444 in.
Valve Lift with Factory Rocker Arm Ratio:
0.421 int./0.444 exh.
Lobe Separation (degrees):
112