higher/lower compression
2nd Gear Member
Joined: Jul 2006
Posts: 379
From: FL
RE: higher/lower compression
ORIGINAL: HARFORD
what kind of heads will up the compression or whatnot on my 98 v6? or even lower it? any kind of performance heads? or from another car, that iss a complete bolt on.?
what kind of heads will up the compression or whatnot on my 98 v6? or even lower it? any kind of performance heads? or from another car, that iss a complete bolt on.?
The other goodway to gain/lose compression is with different pistons. Pistons that make the combustion chamber smaller mean higher compression, and those that make the combustion chamber larger mean lower compression.
2nd Gear Member
Joined: Dec 2006
Posts: 379
From:
RE: higher/lower compression
ORIGINAL: Blainestang
Just have the heads milled... height shaved off the bottom... and you'll gain compression.
The other goodway to gain/lose compression is with different pistons. Pistons that make the combustion chamber smaller mean higher compression, and those that make the combustion chamber larger mean lower compression.
ORIGINAL: HARFORD
what kind of heads will up the compression or whatnot on my 98 v6? or even lower it? any kind of performance heads? or from another car, that iss a complete bolt on.?
what kind of heads will up the compression or whatnot on my 98 v6? or even lower it? any kind of performance heads? or from another car, that iss a complete bolt on.?
The other goodway to gain/lose compression is with different pistons. Pistons that make the combustion chamber smaller mean higher compression, and those that make the combustion chamber larger mean lower compression.
why do you want to raise.. or lower your compression?
Thread Starter
2nd Gear Member
Joined: Mar 2007
Posts: 301
From:
RE: higher/lower compression
well accually i guess i wanted to know wher any kind of performance heads, or heads i could yank off of another car is to gain hp. the honda guys have faster cars if they raise their comprresion, which would help as higher rpms and **** i believe, so i guess its not really just to rais compression but another motor i could take the heads off and put onto mine for more horsepower.
Gentleman's Relish
Joined: Feb 2005
Posts: 13,189
From: AZ
RE: higher/lower compression
ORIGINAL: HARFORD
what kind of heads will up the compression or whatnot on my 98 v6? or even lower it? any kind of performance heads? or from another car, that iss a complete bolt on.?
what kind of heads will up the compression or whatnot on my 98 v6? or even lower it? any kind of performance heads? or from another car, that iss a complete bolt on.?
There's no reason to lower compression unless you are looking to add forced induction up the wazoo.
4th Gear Member
Joined: Aug 2006
Posts: 1,581
From: Terre Haute, Indiana
RE: higher/lower compression
We don't have Honda engines though. They have a competely different type of engine than we do in our V6's so their engines respond differently to modifications than ours do.
Gentleman's Relish
Joined: Feb 2005
Posts: 13,189
From: AZ
RE: higher/lower compression
ORIGINAL: HARFORD
well accually i guess i wanted to know wher any kind of performance heads, or heads i could yank off of another car is to gain hp. the honda guys have faster cars if they raise their comprresion, which would help as higher rpms and **** i believe, so i guess its not really just to rais compression but another motor i could take the heads off and put onto mine for more horsepower.
well accually i guess i wanted to know wher any kind of performance heads, or heads i could yank off of another car is to gain hp. the honda guys have faster cars if they raise their comprresion, which would help as higher rpms and **** i believe, so i guess its not really just to rais compression but another motor i could take the heads off and put onto mine for more horsepower.
Yes you can gain some HP/TQ by increasing compression but you also reduce your ability to do anything with FI and it's not the best way to increase the power on your pushrod engine.
If you want more power, work on getting better flowing heads. Try supersixmotorsports.com and check out their 'power paks'.
4th Gear Member
Joined: Jan 2007
Posts: 1,758
From: Eureka, Ca.
RE: higher/lower compression
I would do like Derf00 said and get the heads to flow better with a port and polish job and back cut the intake valves but if you really want to increase compression the cheapest way is to try and find thinner head gaskets. it'll do the same as shaving the heads but for a lot less money.
Thread Starter
2nd Gear Member
Joined: Mar 2007
Posts: 301
From:
RE: higher/lower compression
We don't have Honda engines though
is it hard to take off the heads out of a 98?