electric choke conversion
Thread Starter
Burning Brakes
Joined: Nov 2004
Posts: 1,028
Likes: 0
From: San Antonio Texas
electric choke conversion
converting my 79 from hot air choke to electric choke. where's the best place to connect the choke? i hear most people run to the alternator but that means a long "ugly" wire.
my MSD ignition is connected to switched 12 volt through the key switch wire (used to go to "Bat" connection in cap coil). it's connected with their jumper wire that has a "spare" female connection. is there any problem just running from choke back to jumper wire.
my MSD ignition is connected to switched 12 volt through the key switch wire (used to go to "Bat" connection in cap coil). it's connected with their jumper wire that has a "spare" female connection. is there any problem just running from choke back to jumper wire.
Le Mans Master
Joined: Aug 2003
Posts: 7,720
Likes: 12
From: Chattanooga TN
You want it switched so I wouldn't get it from the alternator. I also wouldn't get it directly from the ignition circuit. Not sure how much current it needs, but I might trigger a relay with the ignition wiring and pull power (fused somehow) from the starter + post. If not that then a wire from the fuse box on an "acc" terminal.
Tech Contributor
Joined: Aug 1999
Posts: 14,380
Likes: 6,390
From: At my Bar drinking and wrenching in Lafayette Colorado
Run a wire from the wiper motor terminal. The wiper motor goes "hot" any time the ignition is on, and it's easy to conceal the additional wire with the rest of the harness in the firewall area. This also gives you the fringe benefit that you can pre-open the choke when you don't need it by switching the key to the "acc" position for a minute prior to start - this will shorten the choke cycle a bit on warmer days.
Burning Brakes
Joined: Dec 2002
Posts: 1,069
Likes: 2
From: Sherwood Park AB
Originally Posted by lars
Run a wire from the wiper motor terminal. The wiper motor goes "hot" any time the ignition is on, and it's easy to conceal the additional wire with the rest of the harness in the firewall area. This also gives you the fringe benefit that you can pre-open the choke when you don't need it by switching the key to the "acc" position for a minute prior to start - this will shorten the choke cycle a bit on warmer days.
I followed Lars' advice after I originally had it hooked to the oil pressure wire. 
My oil pressure gauge would flutter around, and I think the extra voltage from the choke wire was causing it. 
Corvette Stories
The Best of Corvette for Corvette Enthusiasts
Top 10 Most Expensive Corvettes Ever Sold on Bring A Trailer
Brett Foote
10 Things Every Corvette Owner Needs (2026 Edition)
Michael S. Palmer
8 Most "Only Corvette Owners Understand" Quirks and Problems
Pouria Savadkouei
10 Reasons the C6 Z06 is Still A Performance Benchmark After 20 Years
Joe Kucinski
How Much Horsepower Every Corvette Engine "LOST" in 1972
Joe Kucinski
Top 10 DOs and DON'Ts for Protecting Your Convertible Top!
Michael S. Palmer
Top 10 Most Explosive Corvettes Ever Made: Power-to-Weight Ratio Ranked!
Joe Kucinski
150 hp to 1,250 hp: Every Corvette Generation Compared by the Specs That Matter
Joe Kucinski