View Full Version : cam motion rocks
Well i decided to go to a roller camshaft so i called a place in baton rouge that custom grinds camshafts called Cam Motion. He asked me all the details on my motor, truck, transmission and all internals. The more info the better.. well he called me back and told me the camshaft specs he had come up with for me. 660 lift!!! i was floored, told him i didnt think my motor would clear it. He told me that based on his calculations and based on what i had told him i should have around .080 clearance on the intake and .100 on the exhaust but to check it and make sure. So i got the fancy lil checker springs and the dial indicator and went to work. i checked it four times and came up with the same figures each time. i had .083 on the intake and .097 on the exhaust. HE NAILED IT. i highly recommend these guys and the best part is...i got the camshaft, springs, titanium retainers, and lifters for 750 bucks from them...great price also. give these guys a call for any cam needs lol
Ray
spacecadet
11-15-2005, 06:42 PM
Did you get it together yet? How does it run? Whens the power \"come on\". That sounds like a lot of lift.
Space.
grimpuppy
11-15-2005, 07:17 PM
In my mind thinking this was a 406 CI motor. I just realized it is a 350, the BORE was 4.06 Man that is serious power from a 350. It should be a rocket.
Knanthrup
11-15-2005, 10:22 PM
Wow that is a huge cam for a 350! Let us know how it works
fatts
11-16-2005, 06:58 AM
Cammotion does a BUNCH of turbo cams for guys going silly fast. A guy named Ira is going 5.50-5.60 in the 1/8 wich is around an 8.50 in the 1/4 with a JUNKYARD turbo and a cammotion solid roller.
MARKYMARK
11-16-2005, 05:38 PM
my cam in my 355 has 630 lift and 276 duration at 050 it runs like a beast but has a whopping 75 lbs of cylinder presure at cranking. i thought i put the cam in wrong but i double checked . 12.5 to 1 comp little low i thought , bought it on ebay for $ 75
fatts
11-29-2005, 05:34 AM
Hey markymark...That does seem a little low. I had a cam with 260* @.050 and only 10 to 1 compression and I had 165 psi cranking compression. What is your intake closing point? That plays a big part in cranking psi. If you have a wider lobe seperation that will cause lower cranking compression because the intake valve closes later than with a tighter lobe seperation. With your cranking psi I would bet your intake closes somewhere around 70 -80 *abdc or more. My cam had a 106* lobe seperation which helped cranking compression. Mine closed at around 64*abdc
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