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Old 2010-10-13, 22:12   #1
Jsarnold
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Flamethrower Dist and Roller Cam?

The Pertronix catalog lists the FlameThrower distributor for sbf, EXCEPT 5.0. No listing for a 5.0.

When I asked about a steel gear for a roller cam, I got this response.

Quote:
Since the catalog printing we have confirmed the distributor fits the 5.0 liter engine. We also had the distributor gear tested with the factory roller cam on a spin tron machine at a cam manufactures plant. We found our gear works fine with Ford factory roller cam. However if it makes you feel safer then you can change the gear to a ford gear OEM gear as the distributor shaft is the same size at the gear.


I guess I believe them. Anyone using one of those distributors with a roller tappet cam?


Last edited by Jsarnold; 2010-10-15 at 21:51.
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Old 2010-10-13, 22:59   #2
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as long as its a steel/bronze/composite i dont see any problems with running it in a roller motor. But of course cast iron is a no no.
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Old 2010-10-15, 20:18   #3
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Actually a cast iron gear would be fine - BUT the sintered iron gears will shread against the steel cam. (sintered iron is powdered iron formed under pressure)
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Old 2010-10-15, 20:29   #4
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I also thought they were cast.... It even states it in the description when you buy a distributor. So there sintered iron?
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Old 2010-10-15, 20:33   #5
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Yep! they are sintered iron - just crack one and you can tell.
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Old 2010-10-16, 11:13   #6
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Thank you for the info Paul.
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Old 2010-11-25, 18:45   #7
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So Many Options ...

OK, so I was settled on a Duraspark/HEI hybrid as my second ignition for the Maverick. (I want an extra ignition in the trunk for road trips.) Lining up the parts, I find a rebuilt '85 GT 5-speed Duraspark for $50. HEI module is $22. Then, with more reading, I learn I should also get a better coil to get the advantage of the hotter ignition.

So, why not just buy a second HEI distributor and have the same wiring for the primary and backup ignitions. How about this one for $40? http://cgi.ebay.com/ebaymotors/ws/eB...MakeTrack=true

Sure would make it simpler to swap out in case of a failure and I'm not bothered by the size of the HEI.

I asked the seller which gear it has. If its bronze or steel, I think I'll go for it.
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Old 2010-11-25, 22:25   #8
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those distrbtors use gm hei moduels. you shouldnt need to carry a complete distributor, just the moduel. unless your worried about the gear wearing out. it shouldnt if its the right one for the cam.
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Old 2010-11-26, 08:28   #9
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Not worried about the gear but I like the idea of swapping out the entire ignition (module, coil, cap, rotor, ...) if I have a problem on the road. Then I can find the problem and fix it when I get home. I do appreciate your comments.
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Old 2010-11-26, 12:01   #10
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HEI Dizzy Upgrade

Quote:
Originally Posted by Jsarnold View Post
Not worried about the gear but I like the idea of swapping out the entire ignition (module, coil, cap, rotor, ...) if I have a problem on the road. Then I can find the problem and fix it when I get home. I do appreciate your comments.
I chked out that HEI setup. I like what I see. At that price u can afford 2 new units. I have the DuraSpark on my car but considering the change over. I wud like the setup where I get 12v to coil setup and eliminate the box under the hood. If you go this route I wud like to know what u think of this upgrade.
I have seen others here using similiar if not the same setup and kind of confused abt the dizzy gear issues. Im not clear on what gear I wud need in order not to do any damage internally. I suppose all the DuraSpark dizzy's have the same gear material. Maybe some of the folks here can provide me some feedback on this question?
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