can some one please help me
#1
can some one please help me
I have a lq4 and I'm waiting to do a 12.1 compression can I do this on pump gas or do I.have to have 110.octane , if not what the highest compression , I can run on pump gas?
#3
On my 408 I'm running 12.5:1 dcr, but 8.22:1 dcr with my cam (255/263 .624/.624 115lsa) on pump gas with no problems.....full 26 degrees timing and 0 knock spinning to 8,000
From everything I've searched and read 8.5:1 dcr, and about 200psi cylinder pressure is about max for pump gas
From everything I've searched and read 8.5:1 dcr, and about 200psi cylinder pressure is about max for pump gas
#4
On my 408 I'm running 12.5:1 dcr, but 8.22:1 dcr with my cam (255/263 .624/.624 115lsa) on pump gas with no problems.....full 26 degrees timing and 0 knock spinning to 8,000
From everything I've searched and read 8.5:1 dcr, and about 200psi cylinder pressure is about max for pump gas
From everything I've searched and read 8.5:1 dcr, and about 200psi cylinder pressure is about max for pump gas
#5
When running a bigger cam you need to raise your static compression to keep your dynamic compression up.....the later your intske valve closes the lower your dcr will be.
At or over 8.5:1 sec is where you will hsve to start pulling timing and still might have troyble with knock on pump gas.
#7
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#8
Do you plan on driving this on the street? If I were you I would stick with 91 Octane fuel. Many pumps DO NOT have 92-93+ octane. Places like Utah barely have 90!