Timing
10-29-2004, 05:03 PM
#1
TECH Veteran
Thread Starter
iTrader: (6)
Join Date: Nov 2003
Location: Tallahassee, FL
Posts: 4,397
Likes: 0
Received 0 Likes
on
0 Posts
Timing Anyone mind giving me an explanation of what increased timing is providing?
Why do modifications (ex. heads,cam) throw off timing? Most bump it back up with the increased air flow of a ported set of heads, or larger duration'd camshaft.
I think my understanding of timing is a bit off, and I'm pretty sure I understand why a camshaft swap, affects max timing but not cylinder heads.
Kyle
Why do modifications (ex. heads,cam) throw off timing? Most bump it back up with the increased air flow of a ported set of heads, or larger duration'd camshaft.
I think my understanding of timing is a bit off, and I'm pretty sure I understand why a camshaft swap, affects max timing but not cylinder heads.
Kyle
10-29-2004, 05:31 PM
#2
The right spark advance is the one that starts combustion early enough such that cyl pressure is at its peak at the right time relative to the piston being at TDC.
Too late, and you leave some power behind.
Too early, and you leave some power (and p
Too late, and you leave some power behind.
Too early, and you leave some power (and p
10-29-2004, 05:39 PM
#3
TECH Veteran
Thread Starter
iTrader: (6)
Join Date: Nov 2003
Location: Tallahassee, FL
Posts: 4,397
Likes: 0
Received 0 Likes
on
0 Posts
Ah ok, cylinder pressure.
So, a camshaft that lets in more air, needs more timing advancement. Is this the way it works?
What about cylinder heads. Just more efficient...more air entering? Add timing
So, a camshaft that lets in more air, needs more timing advancement. Is this the way it works?
What about cylinder heads. Just more efficient...more air entering? Add timing