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TBI to Carb distributer question

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Old Aug 5, 2010 | 02:40 AM
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From: Valparaiso,IN
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TBI to Carb distributer question

i have the LO3 in it right now but im building a carbed L98 and plan on swapping it in there during the winter.. i have zero none nada knowledge about electronics so i was just wondering what all electrically i need to do.. HEI distributer? ignition box? also i need to get an AFPR but will that be all for the fuel, or should i buy an entire new fuel pump? thanks
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Old Aug 5, 2010 | 09:08 AM
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From: Pepperell, MA
Car: 1987 Trans Am
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Re: TBI to Carb distributer question

may want to check over in the carb section of the site, but minimum you'll need to change is the distributor (HEI), rewire the fuel pump relay, and install a return-style FPR. No need for an ignition box (optional). You'll also need to get a lockup kit for the transmission.
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Old Aug 6, 2010 | 03:55 AM
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Car: 82 Z28
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Re: TBI to Carb distributer question

Originally Posted by 1ADan
may want to check over in the carb section of the site, but minimum you'll need to change is the distributor (HEI), rewire the fuel pump relay, and install a return-style FPR. No need for an ignition box (optional). You'll also need to get a lockup kit for the transmission.
And fan control
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Old Aug 6, 2010 | 04:34 AM
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From: Valparaiso,IN
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Re: TBI to Carb distributer question

Originally Posted by vetteoz
And fan control

i feel kind of stupid for asking this but wat will i need to do that?
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Old Aug 6, 2010 | 07:43 AM
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From: Not in Kansas anymore
Car: 82 Z28
Engine: 383 SP EFI/ 4150 TB
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Axle/Gears: QP 9" 3.73
Re: TBI to Carb distributer question

Originally Posted by bduffey723
i feel kind of stupid for asking this but wat will i need to do that?
Not up to speed on TBI cars but IF the computer ran the fans like on the TPI cars you now need a fan switch in the head wired to the fan(s) relay to operate the fan(s).
If TBI has fan switch already ,no changed needed

Something like one of these fan switches in the temp operating range of your choice
http://www.a1electric.com/Merchant2/...uct_Code=185TS
http://www.a1electric.com/Merchant2/...uct_Code=195TS

Last edited by vetteoz; Aug 6, 2010 at 07:51 AM.
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Old Aug 8, 2010 | 11:16 PM
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From: Valparaiso,IN
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Re: TBI to Carb distributer question

Originally Posted by vetteoz
Not up to speed on TBI cars but IF the computer ran the fans like on the TPI cars you now need a fan switch in the head wired to the fan(s) relay to operate the fan(s).
If TBI has fan switch already ,no changed needed

Something like one of these fan switches in the temp operating range of your choice
http://www.a1electric.com/Merchant2/...uct_Code=185TS
http://www.a1electric.com/Merchant2/...uct_Code=195TS
ok cool thanks alot!
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Old Aug 8, 2010 | 11:20 PM
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Re: TBI to Carb distributer question

On the fan, a better option is a seperate fan controller - I installed one 4 years ago and haven't had any overheating issues since. It's adjustable, has provisions for A/C and manual on/off toggles, probes the radiator so no more face full of coolant changing out that factory switch, and easy to wire. The one I have is a Flex-a-lite, there are others more and less expensive - but the Flex-a-lite was the best $90 I ever spent!

But on a TBI car, you don't need to do anything - the factory fan wiring has nothing to do with the ECM, and should work fine.
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Old Aug 8, 2010 | 11:42 PM
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Re: TBI to Carb distributer question

Originally Posted by camaronewbie
On the fan, a better option is a seperate fan controller - I installed one 4 years ago and haven't had any overheating issues since. It's adjustable, has provisions for A/C and manual on/off toggles, probes the radiator so no more face full of coolant changing out that factory switch, and easy to wire. The one I have is a Flex-a-lite, there are others more and less expensive - but the Flex-a-lite was the best $90 I ever spent!

But on a TBI car, you don't need to do anything - the factory fan wiring has nothing to do with the ECM, and should work fine.
i dont need to do anything? i like hearing that.. haha..

wuld i need to but a fuel pump relay in though?
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