Tripower & distributor size (HEI??) - Pontiac GTO Forum
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post #1 of 6 (permalink) Old 11-20-2017, 07:00 AM Thread Starter
 
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Tripower & distributor size (HEI??)

I am currently using a standard GM HEI unit on a tripower setup and cannot get enough rotation with the distributor to properly set timing . I have tried numerous times to "walk" the distributor and be able to get the timing set, but the HEI cover is so large I have very little room for adjustment. I am wondering if there is a smaller unit that won't hit the back carb and will work well. (I'd really like to use an HEI unit if possible.) Thanks in advance


Chris

1965 GTO Convertible 3 speed tri-power drum brakes originally

Current setup:
400 cu in with tri-power
4 speed Muncie
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post #2 of 6 (permalink) Old 11-20-2017, 01:19 PM
 
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There are lots of small cap options. But, I think they all require a remote coil. Some like a factory points type dist with one of the Pertronix Ignitor elec conversions installed. The Ignitor III has a built in rev limiter.

The MSD Ready-to-Run is popular.

https://www.summitracing.com/parts/msd-8528/overview/

https://www.summitracing.com/parts/s...00-1/overview/

https://www.summitracing.com/parts/p...0700/overview/

There are some dist that require a box. I had to buy a replacement box. So, I don't recommend the box, for street cars. Just one more part to go bad. IMO

Last edited by bigD; 11-20-2017 at 01:36 PM.
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post #3 of 6 (permalink) Old 11-20-2017, 06:41 PM
 
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HEI and tripower do not go together as you learned. This has been covered in a number of posts and you might find a recommendation within one of the many posts. Use the SEARCH option in the upper right.

I like Pertronix and got one of their electronic distributors and matching coil because I wanted a factory look and not the big HEI cap. If you rather not spend the money on a billet distrib., I would simply get a factory distributor and go with the Pertronix electronic conversion - also have done that and have been satisfied with the results.
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post #4 of 6 (permalink) Old 12-05-2017, 06:58 AM Thread Starter
 
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Thanks guys! I installed a rebuilt distributor and converted to the Pertonix setup with external Pertronix coil, installed new wires, set the timing (easy), and the car screams .

1965 GTO Convertible 3 speed tri-power drum brakes originally

Current setup:
400 cu in with tri-power
4 speed Muncie
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post #5 of 6 (permalink) Old 12-05-2017, 06:16 PM
 
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Originally Posted by cij911 View Post
Thanks guys! I installed a rebuilt distributor and converted to the Pertonix setup with external Pertronix coil, installed new wires, set the timing (easy), and the car screams .
Perfect. Just make sure you have 12volts going to the Pertronix as the instructions say. Factory wiring/points uses a resistor wire and drops voltage down to around 8-9volts.
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post #6 of 6 (permalink) Old 12-05-2017, 09:11 PM Thread Starter
 
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Perfect. Just make sure you have 12volts going to the Pertronix as the instructions say. Factory wiring/points uses a resistor wire and drops voltage down to around 8-9volts.
Yeppers

1965 GTO Convertible 3 speed tri-power drum brakes originally

Current setup:
400 cu in with tri-power
4 speed Muncie
cij911 is offline  
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