How much cam
Thread Starter
Team Owner
Joined: Apr 2002
Posts: 62,198
Likes: 1
From: All humans are vermin in the eyes of Guru VA
Cruise-In IV Veteran
Cruise-In V Veteran
How much cam
How much cam do I need to run 11:1 compression?
I have 236/249 at .050 with a 112 LSA cam hydraulic roller.
Planning on a 383 with flat top pistons
I have 236/249 at .050 with a 112 LSA cam hydraulic roller.
Planning on a 383 with flat top pistons
Safety Car
Joined: Aug 2000
Posts: 3,711
Likes: 43
From: San Antonio TX
You can go bigger if that's your true compression. But you can also go as small as you want if you can manage the detonation with the high cylinder pressure.
But really, the question is how much compression do you need to be able to use a particular cam? You should be fine with that cam at that compression.
But really, the question is how much compression do you need to be able to use a particular cam? You should be fine with that cam at that compression.
Race Director
Joined: Apr 2000
Posts: 17,676
Likes: 201
From: Who says "Nothing is impossible" ? I've been doing nothing for years.
Yes you have it backwards, normally you pick a cam, heads etc. that compliment each other, and then you choose pistons for that the compression ratio you need to run the cam 
As stated above, you will be fine at 11:1 CR with that cam
As stated above, you will be fine at 11:1 CR with that cam
Drifting
Joined: Dec 2004
Posts: 1,345
Likes: 3
Originally Posted by Guru_4_hire
How much cam do I need to run 11:1 compression?
I have 236/249 at .050 with a 112 LSA cam hydraulic roller.
Planning on a 383 with flat top pistons
I have 236/249 at .050 with a 112 LSA cam hydraulic roller.
Planning on a 383 with flat top pistons
With a Victory Jr and 750 CFM Holley, this is a great combination. At peak measured with a G-tech, it has only 90 HP less than my new SRT-10 Viper.
