so, IS there a difference between the 12a and GSLSE 13b distributer?
#1
so, IS there a difference between the 12a and GSLSE 13b distributer?
i have a 12a and a GSLSE dizzy. they have different numbers stamped on the sides. i dont know if that means anything or not.
so, IS there a difference between the two dizzys or not? if so, what?
so, IS there a difference between the two dizzys or not? if so, what?
#3
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My (uneducated) reaction was they would be different but the internet suggests they are the same....
http://www.blackdragonauto.com/icatalog/rx/0081.asp
edit** 81-85 are the same anyways
http://www.blackdragonauto.com/icatalog/rx/0081.asp
edit** 81-85 are the same anyways
#5
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I think the 13B dizzy had slightly more total advance to it between the vacuum advance and mechanical advance. Unless you intend to use both advance devices, there's really not much difference.
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#8
Lapping = Fapping
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Not enough to make a difference.
I've rebuilt a couple distributors and the GSL-SE has a curved advance slot while the 12A has a straight advance slot. Also the springs are different. This causes the advance to happen at a different RPM and I think the curved slot allows for a few more degrees. Maybe 5 more or something.
I swapped distributors in the GLC and I couldn't tell a difference.
I've rebuilt a couple distributors and the GSL-SE has a curved advance slot while the 12A has a straight advance slot. Also the springs are different. This causes the advance to happen at a different RPM and I think the curved slot allows for a few more degrees. Maybe 5 more or something.
I swapped distributors in the GLC and I couldn't tell a difference.
#10
Lapping = Fapping
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I wonder how hard it would be to hook up a normal dizzy to act like a 12A turbo dizzy. Let's say you're boosted (SC or turbo) and you hook the vacuum things up to manifold pressure/vacuum. As the boost rises, the diaphrams push the pickups one direction, thus retarding them. Under vacuum, they pull the usual other direction for vacuum advance.
I tried this once on my bro's SC RX-4. It showed promise, but I was in a hurry to get it to the point where he could drive it so I ditched the boost retard/vaccum advance and just left the vacuum diaphrams open and plugged the manifold. I might try it again some day.
I tried this once on my bro's SC RX-4. It showed promise, but I was in a hurry to get it to the point where he could drive it so I ditched the boost retard/vaccum advance and just left the vacuum diaphrams open and plugged the manifold. I might try it again some day.
#12
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