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Author Topic:   460 lift cam
racer17j
Dirt Forum Champ
Total posts: 1565
posted December 31, 2001 03:53 PM UIN: 54865418
i just got my new rules in the mail today and we are going to have a max of 460 lift on our cams this year and have to pull 14" vac@750 rpm
i've allways ran bigger cams does anybody have any suggestions on a good cam i'll be running on a 3/8 hi bank and a big half lowbank

redneck bubbas racing
Dirt Freak

Total posts: 213
posted January 01, 2002 01:57 PM
A lift rule is easy to work with. A vaccum rule is easy to work with. A vaccum AND lift rule together aint so easy. This is pretty much gonna limit you cam to around 270 advertised duration and a max rpm of 5200-5500. This is all just my opinion, and we know everybody has one of those too. Ed Iskedarian makes real good lift rule cams, maybe they could help you in this case too.

racer17j
Dirt Forum Champ
Total posts: 1565
posted January 01, 2002 03:03 PM UIN: 54865418
i have no idea how they came up with this rule anyway it's a new class at this track and there are other tracks in the that all run the same rules except for this stupid cam rule myself if i wanted to get more cars i wouldn't make up rules that would make others not able to race there

Donnie Ross
Dirt Maniac

Total posts: 109
posted January 02, 2002 07:20 PM
i dont know how much vacuum it would pull but the old z28 cam meets the lift rule with
power past 6ooo, should have vacuum as it was ground on wide lobe centers, and had to
be used with power brakes, note:this is the 70-73 cam not 67-69 it a little hairier.

oldgold
Dirt Full Roller

Total posts: 36
posted January 02, 2002 07:56 PM
competition products in wisconsin ask for the 1132 cam it is 450 lift and has good vacuum at idle and it has a duration of around 230 @50 Rick

racer17j
Dirt Forum Champ
Total posts: 1565
posted January 03, 2002 01:00 AM UIN: 54865418
thanks for the replys guys the job i was getting fell thru today so i don't have to change now thank god lol

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