MSD tach adapter?

84_GT350 · 05-15-2001, 04:00 AM

Ever since I installed my MSD 6A box my tach has been dead and I haven't been able to getting going again. Can I use one of these adapters on a car without TFI? I've got an MSD ditributor also and no control module (except the 6A) but I've cut the tach wire from the old control harness and used to have it wired to the coil, which made the tach work. Will these "white wire trigger" adapters work on my car and, if so, how do I install them?

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1984 1/2 GT350 (#842 Hatchback w/ T-tops), 302HO, Comp cams Xtreme Energy cam, Carter 625cfm carb, Weiand Stealth intake, MSD distributor, MSD coil, FMS 9mm wires, 1 5/8" MAC unequal shorties, 2 1/2" MAC Prochamber H-pipe, Flowmaster 2 chambers, KYBs, 16"x8" 4 lug Cobra Rs, Falken 245/45ZR16s

red82gt · 05-15-2001, 01:29 PM

Somebody let us know, I'm in the same boat, except my autogage tach doesn't work either.

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GT-40 heads (ported, polished, + milled), B303 cam, 1.7rr's, JE pistons, Offy intake, Carter AFB 625cfm carb, Flowtech 1 5/8" shortys, Flowtech X-pipe, MAC Flowpath exhaust, MAC pulleys, 373's, subframes, Eibachs+Tokicos, B+M ripper, FMS Clutch, Zoom Quadrant+cable, 17" CSA Ultra rims, 235/45ZR17 Yokohama AVS S4's, MSD 6A ignition+coil, FMS 9mm wires, Carbed, Naturally Aspirated, and Nasty!

84_GT350 · 05-15-2001, 07:28 PM

Yeah...I'm with Red82GT. Life's a b!tch without a tach.

------------------
1984 1/2 GT350 (#842 Hatchback w/ T-tops), 302HO, Comp cams Xtreme Energy cam, Carter 625cfm carb, Weiand Stealth intake, MSD distributor, MSD coil, FMS 9mm wires, 1 5/8" MAC unequal shorties, 2 1/2" MAC Prochamber H-pipe, Flowmaster 2 chambers, KYBs, 16"x8" 4 lug Cobra Rs, Falken 245/45ZR16s

[This message has been edited by 84_GT350 (edited 05-15-2001).]

shovelnose · 05-16-2001, 01:35 AM

Ditto. I installed a Crane Hi-6 and have the same problem. I've tried to wire the tach directly to the neg terminal of the coil and also to the tach signal on the ign. box. My monster tach works fine of course, but I am curios myself.

------------------
82 Mercury Capri 302.
Comp. Cams
Tremec 3550
3.73's
12.8@106 N/AKevin's Capri

05-15-2001, 04:00 AM	#1
84_GT350 Registered Member Join Date: Apr 1999 Location: Overland Park, KS, USA Posts: 1,631	MSD tach adapter? Ever since I installed my MSD 6A box my tach has been dead and I haven't been able to getting going again. Can I use one of these adapters on a car without TFI? I've got an MSD ditributor also and no control module (except the 6A) but I've cut the tach wire from the old control harness and used to have it wired to the coil, which made the tach work. Will these "white wire trigger" adapters work on my car and, if so, how do I install them? ------------------ 1984 1/2 GT350 (#842 Hatchback w/ T-tops), 302HO, Comp cams Xtreme Energy cam, Carter 625cfm carb, Weiand Stealth intake, MSD distributor, MSD coil, FMS 9mm wires, 1 5/8" MAC unequal shorties, 2 1/2" MAC Prochamber H-pipe, Flowmaster 2 chambers, KYBs, 16"x8" 4 lug Cobra Rs, Falken 245/45ZR16s

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05-15-2001, 01:29 PM	#2
red82gt Sober voice of Reason Join Date: Nov 1998 Location: Kelowna, B.C., Canada Posts: 1,514	Somebody let us know, I'm in the same boat, except my autogage tach doesn't work either. ------------------ GT-40 heads (ported, polished, + milled), B303 cam, 1.7rr's, JE pistons, Offy intake, Carter AFB 625cfm carb, Flowtech 1 5/8" shortys, Flowtech X-pipe, MAC Flowpath exhaust, MAC pulleys, 373's, subframes, Eibachs+Tokicos, B+M ripper, FMS Clutch, Zoom Quadrant+cable, 17" CSA Ultra rims, 235/45ZR17 Yokohama AVS S4's, MSD 6A ignition+coil, FMS 9mm wires, Carbed, Naturally Aspirated, and Nasty!

05-15-2001, 07:28 PM	#3
84_GT350 Registered Member Join Date: Apr 1999 Location: Overland Park, KS, USA Posts: 1,631	Yeah...I'm with Red82GT. Life's a b!tch without a tach. ------------------ 1984 1/2 GT350 (#842 Hatchback w/ T-tops), 302HO, Comp cams Xtreme Energy cam, Carter 625cfm carb, Weiand Stealth intake, MSD distributor, MSD coil, FMS 9mm wires, 1 5/8" MAC unequal shorties, 2 1/2" MAC Prochamber H-pipe, Flowmaster 2 chambers, KYBs, 16"x8" 4 lug Cobra Rs, Falken 245/45ZR16s [This message has been edited by 84_GT350 (edited 05-15-2001).]

05-16-2001, 01:35 AM	#4
shovelnose Registered Member Join Date: Oct 2000 Location: Ontario, Canada Posts: 234	Ditto. I installed a Crane Hi-6 and have the same problem. I've tried to wire the tach directly to the neg terminal of the coil and also to the tach signal on the ign. box. My monster tach works fine of course, but I am curios myself. ------------------ 82 Mercury Capri 302. Comp. Cams Tremec 3550 3.73's 12.8@106 N/AKevin's Capri