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tb4.2 EFI conversion

Tech Talk for Nissan owners.

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tb4.2 EFI conversion

Post by itufgq »

i have a gq with a tb4.2 carby and am sick of it cutting out on hills so i was thinking bout doing a EFI conversion to it i am just wondering would it be easyer to put all the EFI stuff on my engen or just put a EFI motor in and how hard is it to do wat problems am i going to be facing and is it woth it


cheers
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Post by PGS 4WD »

The EFI loom goes intothe dash. If I were you I'd wire in an aftermarket ECU like a Wolf, you get a new loom, not a 20 year old brittle one, you can do away with the restrictive MAF and go to a speed density system, MAP/IAT. If you are going to the effort you might as well get something you can tune for peak performance.

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Post by big goltzz »

i cant even seem to find a efi kit for mine as am looking at doign the same thing
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Post by itufgq »

My plan was to just by a stuffed efi motor and take the efi gear off it and then run some kind of after market ecu but was just wondering if it is legal to run one
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Post by PGS 4WD »

Basically aftermarket ECU's present hurdles from an emissions standpoint. Generally you will need to satisfy an engineer that the engine complies, he may want some data to back it up and possibly the ECU locked from further modification.

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Post by BadMav »

I'm looking at a single point throttle body injection set up off an EA Falcon, apparently it's fairly straight forward and the parts are cheap as chips. Just a slight adjustment to make it fit without an adaptor. Not sure on using the Falcon computer tho.

Also, throw your points away and install a PERTRONIX igntion to your distributor. You don't need to pull the dizzie out to do it and it's the best way to fix that classic TB42 1200 RPM stumble.
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RN
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Post by RN »

BadMav wrote:I'm looking at a single point throttle body injection set up off an EA Falcon, apparently it's fairly straight forward and the parts are cheap as chips. Just a slight adjustment to make it fit without an adaptor. Not sure on using the Falcon computer tho.

Also, throw your points away and install a PERTRONIX igntion to your distributor. You don't need to pull the dizzie out to do it and it's the best way to fix that classic TB42 1200 RPM stumble.
Megasquirt ECU?
I am the Nightrider! I am the chosen one. The mighty hand of vengeance, sent down to strike the unroadworthy!
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Post by PGS 4WD »

Not suggesting an unroadworthy modification RN are you??

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Post by PGS 4WD »

Not suggesting an unroadworthy modification RN are you??

Joel ;)
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