C4 Tech/Performance L98 Corvette and LT1 Corvette Technical Info, Internal Engine, External Engine

First TPI Manifold - Distributor Question

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Old Jul 16, 2013 | 11:19 AM
  #1  
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Default First TPI Manifold - Distributor Question

Interested to know if anyone here is running this manifold?


How does the OEM distributor fit or did you have to convert to something else? I am in the process of gathering all of my parts for y rebuild and am ordering a DUI Distributor but don't want to order the OEM style if a conflict might exist.

I contacted First and they said it is tight BUT should work.
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Old Jul 16, 2013 | 01:15 PM
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I do not have one, but have read up on it quite a bit. It seems most just go with a small cap dizzie to make everything easier, including future timing adjustments, but I'm sure others will chime in. I know there are members here that have this, but I don't recall any of their names.

Good luck with the install and let us know what you think once its completed!
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Old Jul 16, 2013 | 01:31 PM
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Thanks. I checked with DUI Distributors and they gave me the info on the smaller unit. Looks like it is 8 pin module and the large cap is 7 pin. Need to search for an article on a conversion to see how the wiring goes.
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Old Jul 16, 2013 | 02:24 PM
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I did the conversion, read this.

http://forums.corvetteforum.com/c4-t...r-hsr-mod.html
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Old Jul 16, 2013 | 08:15 PM
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Originally Posted by kevingib
Need to search for an article on a conversion to see how the wiring goes.
Small cap reuses all the same existing large cap HEI wiring with different connectors
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