carb & rpm
Thread Starter
7th Gear
Joined: Jan 2009
Posts: 7
Likes: 0
carb & rpm
with my 79 vette it doesn't really start to really pull until i hit 4000rpmi talked to a guy in the local speed shop and he said to try liter springs in the vacumnopener for the secondry,s does this sound right
Thread Starter
7th Gear
Joined: Jan 2009
Posts: 7
Likes: 0
Burning Brakes
Joined: Aug 2005
Posts: 1,164
Likes: 1
From: Europe, France
I think you should check your timing first...
You should have about 36 degrees ( initial + mechanical ), all in at 2800-3000 RPM.
If you are more than +/- 2 or 3 degrees from these values, or if you get it at too high RPM ( too late ) it could explain this kind of problem...
What kind of intake manifold do you have ?
You should have about 36 degrees ( initial + mechanical ), all in at 2800-3000 RPM.
If you are more than +/- 2 or 3 degrees from these values, or if you get it at too high RPM ( too late ) it could explain this kind of problem...
What kind of intake manifold do you have ?
Le Mans Master
Joined: Nov 2008
Posts: 5,691
Likes: 12
From: columbus oh
I think you should check your timing first...
You should have about 36 degrees ( initial + mechanical ), all in at 2800-3000 RPM.
If you are more than +/- 2 or 3 degrees from these values, or if you get it at too high RPM ( too late ) it could explain this kind of problem...
What kind of intake manifold do you have ?
You should have about 36 degrees ( initial + mechanical ), all in at 2800-3000 RPM.
If you are more than +/- 2 or 3 degrees from these values, or if you get it at too high RPM ( too late ) it could explain this kind of problem...
What kind of intake manifold do you have ?
Drifting
Joined: Aug 2008
Posts: 1,381
Likes: 11
You need to provide more info in order to get anything useful back.
Engine size?
Camshaft -duration at .050 and lift?
Heads?
Compression ratio?
Trans type?
Rear gear ratio?
Carb number?
Ingition type and timing numbers?
Intake manifold?
Last tune up?
What do the plugs look like?
Manifold vacuum at idle? - this will help determine how big the cam is.
Your question is similar to asking "how much does a fat boy weigh?"
Engine size?
Camshaft -duration at .050 and lift?
Heads?
Compression ratio?
Trans type?
Rear gear ratio?
Carb number?
Ingition type and timing numbers?
Intake manifold?
Last tune up?
What do the plugs look like?
Manifold vacuum at idle? - this will help determine how big the cam is.
Your question is similar to asking "how much does a fat boy weigh?"
