AJ/FormS
68 Formua-S fastback clone 367/A833/GVod/3.55s
- Joined
- Jan 19, 2014
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So then if you set the total all-in to 34*, then the idle-timing will be 34 less 17 = 17 idle-timing. That's a pretty good start.
So then if you set the total all-in to 34*, then the idle-timing will be 34 less 17 = 17 idle-timing. That's a pretty good start.
So I spent some time yesterday tuning on the engine. I set the initial at 16deg, and it looks like my total is 35deg. The motor pulls very strong, considering how mild it is.
However, after driving it around awhile and it gets hot, it doesn't wanna restart easily. It's very hard to turn over and it sometimes trips the 100amp breaker I have in line with the positive cable.
Also, it doesn't wanna idle below 1k rpm as is either. My brother in law thinks the timing is too high, but it pulls great and doesn't ping up to 5800rpm, which is as high as I've turned it.
Suggestions?
So I played with the timing some today as well as the basic carb adjustments. First off, I found out that my timing light was FUBAR, so I borrowed a good one and ended up putting the initial timing at a true 16deg. Idle air screws on the carb ended up 1.5 turns out. Idle is about 900rpm right now, I wanna get it a little lower to 800rpm.
Took it out for a 30mile test drive. It runs really strong, and cruises fine, however it runs warmer than I'd like. At a steady 50mph/2000rpm the SW mech temp gauge shows around 200-205deg. At idle it'll creep up to nearly 220deg. I'm not sure if that's ok or normal, considering it is a 0.060" over 360. I'm running a 180deg Tstat, an aluminum 22" radiator from Northern Rads, and an electric fan.
I also found out that if I roll into the throttle in 1st gear, it's fine. However if I snap the throttle off idle it develops a traction issue den at part throttle. Weird, right?!
The fan is some no name 16" puller that claims 3000cfm. I'd bet it's more like 2000cfm.