everyone knows i'm a GM guy that owns a mustang ...lol now i know how to set base timing at idle , but i wanna set my total timing to 34 deg on my new MSD Dist ,and adjust the advance cuve ,do i leave the plug in and hold the gas to 3000 , with the timing light and adjust it that way or do i pull out the plug and adjust it ,..thanks
On a carbed application that would work. On a injected motor it won't. The computer usually adds around 20*-25* based on load. Some guys at the track used to pull the spout connector out and leave it out then set their total timing. They then reinstalled the spout and backed it back down for the ride home.
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337 C.I.D.
390 R.W.H.P.
362 R.W.T.Q
11.44@120 in the 1/4
7.35@ 95 in the 1/8
1.60-60'
N.A.
1988 L.X. Hatch 5.0L 5-Speed, 85,000 original miles
On a carbed application that would work. On a injected motor it won't. The computer usually adds around 20*-25* based on load. Some guys at the track used to pull the spout connector out and leave it out then set their total timing. They then reinstalled the spout and backed it back down for the ride home.
oh ok , so on a EFI car you can't set total timing it's all done on base timing and the computer advances it ? and are there no advance springs to change on MSD EFI Dist ?
Correct. Most of the 5.0L guys will crank up the initial or base timing to 14*-18* and let the computer do the rest. The computer will adjust the total timing based on engine load. There are no advance springs or weights in a F.I. distributor.
-- Edited by Retro FIVE O at 21:05, 2008-01-08
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337 C.I.D.
390 R.W.H.P.
362 R.W.T.Q
11.44@120 in the 1/4
7.35@ 95 in the 1/8
1.60-60'
N.A.
1988 L.X. Hatch 5.0L 5-Speed, 85,000 original miles
Correct. Most of the 5.0L guys will crank up the initial or base timing to 14*-18* and let the computer do the rest. The computer will adjust the total timing based on engine load. There are no advance springs or weights in a F.I. distributor.
IMHO, 16* on pump gas is a little ambitious. I would start at 12-13* with spout out & take it for a cruise under high load conditions ie; 3rd gear pull from 1500 rpm on up. If no audible pinging is heard, repeat step 1.
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Death is my art and I'm about to paint my masterpiece.
IMHO, 16* on pump gas is a little ambitious. I would start at 12-13* with spout out & take it for a cruise under high load conditions ie; 3rd gear pull from 1500 rpm on up. If no audible pinging is heard, repeat step 1.
I used to run 17º initial on my motor before the turbo's; this was with an air/fuel ratio of about 12.5:1. Hell, I used to run 14º base w/ 87 octane, with no signs of detonation.
337 C.I.D.
390 R.W.H.P.
362 R.W.T.Q
11.44@120 in the 1/4
7.35@ 95 in the 1/8
1.60-60'
N.A.
1988 L.X. Hatch 5.0L 5-Speed, 85,000 original miles
