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is a ground on the TPI as good as a ground on the head?

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Old 07-18-2001, 04:34 PM
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Car: 1987 Camaro IROC-Z
Engine: 305TPI
Transmission: 700R4
is a ground on the TPI as good as a ground on the head?

temporarily i'd like to bolt the grounds onto my TPI setup rather that on the rear of my head. Unfortunately, the rear of the head is very hard to get at without removing the distributor, could I ground to the TPI for testing or would I not get a good ground there?

Thanks,
Colin

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Old 07-18-2001, 04:52 PM
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Car: 1987 Camaro IROC-Z
Engine: 305TPI
Transmission: 700R4
i used copper anti-sieze on the intake bolts so i should be able to because copper conducts electricity really good, right?

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Old 07-18-2001, 05:11 PM
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Car: 89 IrocZ
Engine: L98-ish
Transmission: 700R4
It should be fine. The bolt heads on the intake and the threads on the bolts themsleve pulling on the heads, should have adequate continuity.

If in doubt, you could run a ground strap, like the one going to the firewall, to the exhaust/header bolt...wouldn't look too out of place.
Old 07-18-2001, 08:09 PM
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Car: 1987 Camaro IROC-Z
Engine: 305TPI
Transmission: 700R4
Fixed!

The ECM is now being grounded and oh my GOSH...

this is the car I remember, rubber straight through first!!! w00t!

not bad for a 305, then again I guess the 4.11s in the back help out

still have a few vacuum leaks, and this persistant misfire, i dunno where that's coming from but it's annoying as hell..

ah well, it's serious fun now, just need iron out the bugs..

thanks for your help, Mike

Colin

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Old 07-19-2001, 09:54 AM
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Car: 89 IrocZ
Engine: L98-ish
Transmission: 700R4
Glad to hear it, I was getting tired of you posting Q's
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