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Old 06-11-2010, 12:03 AM
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HEI pickup coil into TBI distributor.. possible?

if i modified the two wire plugs is there any other reason why an HEI pick up coil cant fit and work in a small style TBI distributor?

resistance values of them are virtually identical


DR106 .687 - .990 HEI
DR132 .683 - .984 TBI

wondering..... curious..

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Old 06-11-2010, 08:26 AM
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Quote:
Originally Posted by fast68
if i modified the two wire plugs is there any other reason why an HEI pick up coil cant fit and work in a small style TBI distributor?

resistance values of them are virtually identical


DR106 .687 - .990 HEI
DR132 .683 - .984 TBI

wondering..... curious..
It does matter- I see a number of pu coils that are identical- except for a slight difference on the ohms measured across the two terminals. Yet they carry a different p/n.
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Old 06-11-2010, 11:13 AM
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ok thats good then while we are on this subject i have two 4.3L tbi distributors


i checked resistance of the pickups in both with ohms scale, but i had no choice as to what scale. it is a double AA powered digital multi meter



in one i got .001

the other i got .800

whats goong on with that?

the 4.3L runs with both these coils

thanks!
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Old 06-11-2010, 12:26 PM
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Quote:
Originally Posted by fast68
ok thats good then while we are on this subject i have two 4.3L tbi distributors


i checked resistance of the pickups in both with ohms scale, but i had no choice as to what scale. it is a double AA powered digital multi meter



in one i got .001

the other i got .800

whats goong on with that?

the 4.3L runs with both these coils

thanks!
If the pickup coils were both disconnected and the meter was used by touching just the two meter leads to the terminals: one meter lead to one, the other meter lead to the other, it should read about 0.8Ω. If each terminal of the p-u coil is checked to ground, there should be infinite resistance.

What you may be seeing (providing the 0.001Ω reading is correct, and not because the contact between the terminals and the leads wasn't good), is your meter is "self-ranging", and will use whatever scale it "thinks" is appropriate.

So, if the digital readout says ".001Ω", you'd also need to look to see what scale it's using. On the R X 1000 scale, 0.001Ω would actually mean 1Ω.

Otherwise, I don't know why it would work if the readings are actually .8Ω for one (which is good), and 0.001Ω for the other- which should mean it's bad! lol
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Old 06-12-2010, 08:56 PM
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yeah i have no clue what scale because this meter doesnt have any choices of scales

it only has one and i havent had time to look into it and see what it is

hmm

so 500 to 1500 ohms i saw on the internet, that is acceptable range isnt it?

also if the batteries were weak/low in the meter do you think it may have lower than actual results when testing resistance of parts like this?
possibly?

thanks!
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Old 06-13-2010, 02:00 AM
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What I recall seeing was 0.7 Ω to about 1.0 Ω. This was for a '77 "generic" Camaro w/350 SBC and was used just for an example of what a lot of guys run. Your pickup coil might have a different ohm rating.

From another post:
"There should be somewhere between .687 - .990 ohm resistance. The p/n for a "generic" p-u coil (from a '77 Camaro w/350) is DR106- that's what the value shown above is for. If it's another p/n, look it up then find the values for it HERE."

The listing and link is for a Wells part.
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Old 06-14-2010, 12:27 AM
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howdy there

hmm..... well.. the ones i am messing with here are the DR132 ones..

i wish i had a multi meter tester here that has several different settings for resistance in ohms, hmmmmmm.,,,,,,,,,



thanks!


Last edited by fast68; 06-14-2010 at 12:54 AM.
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