will i run into problems?
Thread Starter
Registered User
Joined: Feb 2007
Posts: 1,097
From: smithtown, NY
will i run into problems?
with 12:1 compression and a comp cc305? i know its a small cam and i was a little concerned the cr is too high. think ill have to mix in some race gas? or play with timing? any inputs appreciated
Administrator
Joined: Nov 1998
Posts: 71,109
From: Hell was full so they sent me to NJ
Have you calculated the dynamic compression ratio (DCR)? That's what will determine the engine's octane requirements, moreso than the static compression ratio. If you are under 9:1 DCR you will probably be OK on 93-octane pump gas. Over that and you may have a problem.
You'll need to find an online DCR calculator, and you will need to have the details of the cam event timing.
You'll need to find an online DCR calculator, and you will need to have the details of the cam event timing.
Thread
Thread Starter
Forum
Replies
Last Post
dbusch22
Forced Induction
6
Oct 31, 2016 11:09 AM