Vacuum Advance unit?
Thread Starter
Safety Car
Joined: Aug 2000
Posts: 3,943
Likes: 44
From: Florham Park NJ Port Credit Ontario
Vacuum Advance unit?
What brand should I buy? I've seen adjustable ones at Summit. Are these the way to go or is it just one more thing to screw around with? My original one barely moves so I figure it is shot.
I am rebuilding my distributor and this is the last step.
Stew
I am rebuilding my distributor and this is the last step.
Stew
Thread Starter
Safety Car
Joined: Aug 2000
Posts: 3,943
Likes: 44
From: Florham Park NJ Port Credit Ontario
Re: Vacuum Advance unit? (CF6873)
Yeah, I did read that, but I had no idea what the hell he was talking about. I was looking for something that said " buy brand X"...couldnt find it.
Stew
Stew
Racer
Joined: Jan 2000
Posts: 397
Likes: 13
From: Pittston PA
Re: Vacuum Advance unit? (Stewart's74)
I think he recomends a Delco unit, even gives a NAPA part # Before I read his paper I bought a Crane adjustable unit (came with new springs also to taylor the mechanical advance) aprox. $21.00 The vac. canister is also adj.
Instructor
Joined: Jun 2002
Posts: 140
Likes: 0
From: Houston Tx
Re: Vacuum Advance unit? (Leo001)
If you have an adjustable timing light, know that you're timing marks are in the correct place (i.e TDC really is TDC), have a vacuum gauge, and want to get your engine running at exactly the best advance curve, buy the adjustable one from Summit. The vacuum advance is simply a tool to fine tune your advance curve. If you really want to get the "perfect" advance curve it is convenient to have an adjustable vacuum unit. But you'll also might need different springs and will have to do a lot of "seat of the pants" tuning. If you want to have any dyno tuning done, the shop will thank you for having an adjustable vacuum advance.
Russ
[Modified by 77-4speed, 9:18 AM 7/3/2002]
Russ
[Modified by 77-4speed, 9:18 AM 7/3/2002]
