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07-03-2024, 07:41 PM | #1 |
Registered User
Join Date: Oct 2016
Location: Dallas Texas
Posts: 3,118
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Re: Load and heat
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This is the one I have installed. It is about 7" long and beefy. https://www.summitracing.com/parts/qdb-568102 -Kevin
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67 C10 fleet fuel injected '70 402, 700r4, 3.73 posi 07 335 sport turbo 6sp 94 Trans Am GT LT1 6sp posi -- sold after 22yrs 99 540 sport V8 6sp -- sold 73 240z L24 4sp -- given to friend 68 C10 step 350/350 3.73 open -- sold |
08-11-2024, 07:05 PM | #2 |
Registered User
Join Date: Oct 2016
Location: Dallas Texas
Posts: 3,118
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Re: Load and heat
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OK well I've found the limit on my electrical system at idle. 103 outside temp while idling, my system lags bad. I can hear the interior fan slow and if it were at night I'm certain I would have seen my lights dim. Going neutral and raising the RPM to 1100 or so remedies the situation...mostly. I'm sure it's a combination of engine compartment heat and either an alt that can't handle the load or the lead wire off the alt to the bus that isn't big enough. I estimate 70 to 80 amps were being demanded on the bus bar when things went sort of south as described above. My 140A alt should be OK but I can't find an idle output spec for it so ~maybe~ not. It's single post has a 6AWG wire going into a 10AWG fusible link to the bus. I'm wondering whether 6AWG is enough. According to the wire chart, it ~might~ but without the really high operating temp accounted for. I would like to update the alt to bus wiring to 4 or even 2 gauge to just make sure. The run from alt to bus is about 4ft. What are your thoughts? Thank You! -Kevin
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67 C10 fleet fuel injected '70 402, 700r4, 3.73 posi 07 335 sport turbo 6sp 94 Trans Am GT LT1 6sp posi -- sold after 22yrs 99 540 sport V8 6sp -- sold 73 240z L24 4sp -- given to friend 68 C10 step 350/350 3.73 open -- sold Last edited by weq92f; 08-12-2024 at 10:51 AM. |
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