base timing/ vaccum ?
09-08-2008 | 11:15 AM
#1
Thread Starter
Junior Member
Joined: Aug 2007
Posts: 99
Likes: 0
From: Mass
Car: 92 Rs
Engine: 4 Bolt "010" 383
Transmission: 700R4 trans brake Hughes 3K convert
Axle/Gears: BW 9Bolt 3.70's
base timing/ vaccum ?
on a stock tbi305 whats the manifold vaccum supposed to be at idle engine hot? im getting 22 with a autometer mechanical? should it be lower?
second question...
can you adjust timing with these cars using vaccum as a parameter, the vehicle im working on doesnt have a timing tab? reason im asking is because of the computer controlled advance... etc.
any help would be awesome!
thanks
Luke
second question...
can you adjust timing with these cars using vaccum as a parameter, the vehicle im working on doesnt have a timing tab? reason im asking is because of the computer controlled advance... etc.
any help would be awesome!
thanks
Luke
09-08-2008 | 01:08 PM
#3
Member
Joined: Oct 2006
Posts: 320
Likes: 0
From: Allenhurst, GA
Car: '81 Z-28
Engine: Soon to be a 383
Transmission: Muncie
Axle/Gears: 3.42
Re: base timing/ vaccum ?
I would recommend buying a cheap timing pointer, and making sure it reads correct. All you have to do is take out the #1 plug and use a popsicle stck or something kind of soft to make sure it's close.
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