compression ratio ?
Thread Starter
Launching!
Joined: Aug 2003
Posts: 216
Likes: 0
From: Phoenix, AZ
compression ratio ? Whats the highest compression ratio you can go on LS1 and still run 93 pump gas. I'm not trying to get a complicated answer telling me about how you could go higher with a huge cam with alot of overlap and by messing with the timing. Just a basic guideline for a car with a mild cam and basic tune.
TECH Senior Member
Joined: Nov 2001
Posts: 9,246
Likes: 3
From: Troy, AL
Re: compression ratio ? Cats or no cats (big factor here)? What altitude? 160 degree thermostat? Cooler plugs? Cold or hot climate? 12.5:1 air fuel ratio or more like 13.3:1? Timing advance?
I'm seriously not trying to get too technical but the answer to this question could be 10:1 or it could be 13:1.
I'm seriously not trying to get too technical but the answer to this question could be 10:1 or it could be 13:1.
Re: compression ratio ? The engine builders I have spoken to stick to around 11:1 when designing a street motor unless they have specific reason to do something else.
Some of us would be overjoyed to find 93. Im running 11:1 and I dont get better than Ethanol'ed 92 at the pump. (and Im not allowed to pump my own gas)
chris
Some of us would be overjoyed to find 93. Im running 11:1 and I dont get better than Ethanol'ed 92 at the pump. (and Im not allowed to pump my own gas)
chris
