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05-02-2018, 03:25 PM | #1 |
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8ba distributor
hey guys, quick question on an 8ba distributor. when you disconnect the vacuum line, what happens with the advance?? is it just locked out or?? I ask because I am going to be driving a vintage mod that had a stock 8ba distributor put in it when the electronic unit fried. want to know what to expect.
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05-02-2018, 03:37 PM | #2 |
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Re: 8ba distributor
You will have a fixed timing...no advance...
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05-02-2018, 05:34 PM | #3 |
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Re: 8ba distributor
The Load-O-Matic ignition system uses venturi vacuum to function the change in advance. It is a system that requires the carburetor be set up for it and the distributor with correct spring calibration. There is no centrifugal advance in this distributor.
It would have to be set at max advance to work at all so there would be no retard for starting or for pulling a load. It would likely kick back during starting with no retard and it would get poor fuel mileage at road speeds. |
05-02-2018, 05:48 PM | #4 |
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Re: 8ba distributor
Exactly what I wanted to hear. It's set at max timing and doesn't kick back, so when on the track or will run fine. As long as I keep the rpms down lol
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05-03-2018, 07:03 AM | #5 |
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Re: 8ba distributor
one more question if I may, what is the RPM limit on the single points on these distributors?? two reasons...
don't want point float on the track Sometime down the line I was contemplating a possible EFI system. if you run the stock distributor it could be used as a trigger for an EFI ignition. either with points or converted to electronic pickup. |
05-03-2018, 07:28 AM | #6 |
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Re: 8ba distributor
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The first time I saw a chevy dist in a Flathead was at the track, back in the 60's. |
05-03-2018, 08:01 AM | #7 | |
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Re: 8ba distributor
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05-03-2018, 10:35 AM | #8 | |
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Re: 8ba distributor
Quote:
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05-03-2018, 11:00 AM | #9 |
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Re: 8ba distributor
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05-03-2018, 12:54 PM | #10 | |
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Re: 8ba distributor
Quote:
condensor: Fa66 cap: : Fa 73 rotor : Fa67 |
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05-03-2018, 08:48 PM | #11 |
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Re: 8ba distributor
I like that Echlin stuff, went and looked at the ignition parts I'd bought for my 8BA. 3 sets I think I have. My numbers are the same as Bubba mentioned except my condensers are marked FA76. Now I gotta worry about the difference. I've had piss poor luck with condensers on some of my other non Ford ignitions.
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05-15-2018, 08:14 AM | #12 | |
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Re: 8ba distributor
Quote:
hey Ron, just talked to the car owner last weekend about the build of the motor. sounds like it's a pretty mild engine. pretty much a stock 8ba with a "mild" cam that he couldn't name. has 59a style offy heads and a regular dual intake with two 97's. fired it up after sitting and as soon as it got fuel it ran good. He didn't have a timing light and mine is a dial back with a suspect dial so I'm waiting to see where it's currently timed at. last time the car ran on the track they had overheating issues which I'm thinking was related to the mallory unilite distributor it had. hoping to time it so we don't have this issue going forward. |
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05-15-2018, 11:01 PM | #13 | |
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Re: 8ba distributor
Quote:
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05-16-2018, 06:10 AM | #14 | |
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Re: 8ba distributor
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05-16-2018, 10:36 AM | #15 |
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Re: 8ba distributor
Actually you still need advance on a stock car , just doesnt need to return to zero as rpm is mostly up.... Set the timing at 18 -24 at 2500 etc and spin then the engine and turn ign on while cranking to start..........
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05-16-2018, 10:59 AM | #16 | |
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Re: 8ba distributor
Quote:
not saying it wouldn't be better, I ran a midget with an aircooled vw in it and everyone else ran either minisprints with clutches and transmissions or other vw's with magnetos. the minisprints would use the clutches to chug the direct drive vw on starts, I was using a msd distributor with a custom curve to get smoother starts. made a big difference there. this car is a vintage class deal, obviously it would be easier with a curve, but its what he has in it and I'm not paying the bills. |
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