Timing Advance Q

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Aug 21, 2017 | 08:34 PM

#21

Jims427400

Racer

Joined: Sep 2011

Posts: 444

Likes: 35

From: Michigan

I first tried a BorgWarner B26 then tried a B20. The B20 worked best for me. Purchased them from Autozone for around $15 a pc.

Aug 21, 2017 | 08:49 PM

#22

redbarchetta74

Thread Starter

Instructor

Joined: Feb 2017

Posts: 145

Likes: 6

From: Roswell, Georgia

Quote:

Originally Posted by Jims427400

I just went through the same issue with my 67 tripower. Turned out the vacuum can was bad (held no pressure, I could blow right through it.) Replaced it with a new can that worked according to my manifold pressure(rule of 2) and it is now back to normal.

So, if I'm pulling 15-16 at idle, I'd be looking for a can that is all-in by 13-14, correct?

Quote:

Originally Posted by Jims427400

I first tried a BorgWarner B26 then tried a B20. The B20 worked best for me. Purchased them from Autozone for around $15 a pc.

Searching around, it looks like the B20 and B26 both pull 8 by 11-13, correct? Was it just trial/error for you? I'm running a stock 1971 LT-1 EXCEPT for a replacement points distributor.

Aug 21, 2017 | 08:58 PM

#23

Jims427400

Racer

Joined: Sep 2011

Posts: 444

Likes: 35

From: Michigan

13-14 is correct. I knew I needed either a B20 or 26 so I ordered them both. A stock 427/400hp from what I've read does better with a B20 which is what I stayed with.
I googled a lot of information on my specific configuration and it helped me dial things in correctly. I'm running pertronix on my 67 and a stock TI unit on my 68.
Not sure if it's different for your solid lifter LT1.

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