C3 Tech/Performance V8 Technical Info, Internal Engine, External Engine, Basic Tech and Maintenance for the C3 Corvette
Sponsored by:
Sponsored by:

Tach Drive Distributor

Thread Tools
 
Search this Thread
 
Old Jul 3, 2009 | 12:07 PM
  #21  
wytevette's Avatar
wytevette
Advanced
 
Joined: Nov 2008
Posts: 99
Likes: 0
Default

Originally Posted by 7T1vette
I think it's clockwise; but to be honest, I can't remember for sure. But running the drill at low speed the wrong way should not do any damage...that would just simulate backing-up (which should free-spin, rather than moving backwards).
I don't think our motor runs in reverse when we back up. Mine doesn't anyway. Some Ski Doo snowmobiles do though.

I tried one of those electronic gizmos (don't remember who made it) in the distributor that you replace the points with an HEI module. The car would run, but it was very hard to start, almost as if the starter motor was taking away too much juice from the ignition for it to work properly.

It was disappointing because I used one of those same modules to replace the points in my old "Farmall A" tractor and it worked so great I thought it would work well in the 'vette. I should have spent the 100 or so dollars toward a HEI tach drive distributor.
Reply
Old Nov 19, 2009 | 11:16 PM
  #22  
Two Red Vettes's Avatar
Two Red Vettes
Burning Brakes
Active Streak: 30 Days
Active Streak: 60 Days
Active Streak: 90 Days
Liked
 
Joined: Oct 2009
Posts: 1,066
Likes: 57
Default

Originally Posted by oldboat
i put a hei tach drive distributor on my '69 about fourteen years ago. every ignition problem i ever had immediately went away. it is one of the best things i have ever done for my car.
Does it fit under the chrome ignition shielding?

Thanks
Reply
Old Nov 20, 2009 | 06:28 AM
  #23  
GM73VETTE's Avatar
GM73VETTE
Advanced
 
Joined: Jul 2006
Posts: 93
Likes: 0
Default elec distributer

I have been looking at the elec dist with cable tach drive and found this info just what I was looking for. However, when I click to e-bay, the vendor site or ? has been dropped.
Does anyone have an update on the source and brand?
From the previous notes, the distributor is of excellant quality and the price is right.
Thanks for the help,
gm
Reply
Old Nov 20, 2009 | 07:30 AM
  #24  
FB007's Avatar
FB007
Burning Brakes
 
Joined: Dec 2007
Posts: 952
Likes: 0
Default

Originally Posted by wytevette
I don't think our motor runs in reverse when we back up. Mine doesn't anyway.
I'm glad someone else picked up on that.
Reply
Old Nov 20, 2009 | 09:18 AM
  #25  
fgp73's Avatar
fgp73
Thread Starter
Advanced
 
Joined: Jun 2009
Posts: 66
Likes: 1
From: Akron Ohio
Default

Originally Posted by GM73VETTE
I have been looking at the elec dist with cable tach drive and found this info just what I was looking for. However, when I click to e-bay, the vendor site or ? has been dropped.
Does anyone have an update on the source and brand?
From the previous notes, the distributor is of excellant quality and the price is right.
Thanks for the help,
gm
I'm pretty sure this is the one that I used http://cgi.ebay.com/ebaymotors/SBC-C...item518bab64ab
Reply
Old Nov 20, 2009 | 09:26 AM
  #26  
baxsom's Avatar
baxsom
Le Mans Master
15 Year Member
Liked
Loved
Top Answer: 1
 
Joined: Jun 2008
Posts: 5,284
Likes: 235
From: Rockledge FL
Default

i have the dragonfire HEI tach drive on my 454. when i went to a retro roller cam i called the allignition company and they gave me the part #s of the cam gears that would be compatible. i went with the comp cams polymer. it fit with no problems.
Reply
Old Nov 21, 2009 | 07:13 AM
  #27  
jackson's Avatar
jackson
Le Mans Master
 
Joined: Sep 2001
Posts: 7,739
Likes: 630
From: Unreconstructed, South Carolina
Default

Originally Posted by drspencer
Does it fit under the chrome ignition shielding?

Thanks
HEI is much larger dia than points cap. HEI really don't fit points chrome box-lid... but you can beat on it & force it ... results can vary.

Instead, look at chrome top shield-lid & brackets for 75 thru 77 (they have OE HEI) ... many of the vette vendors offer them.

Your radio/stereo does not require ignition shielding if you run spiral core plug wires; though aesthetics may demand it.

Last edited by jackson; Nov 21, 2009 at 07:16 AM.
Reply
Old Nov 21, 2009 | 07:38 AM
  #28  
msandym's Avatar
msandym
Burning Brakes
10 Year Member
 
Joined: May 2006
Posts: 865
Likes: 53
Default Tach drive

I used a HEI with mechanical tach drive from Star Performance . They are a catalog house like Jegs , Summit . Reasonable price , 120 or so , new in box . www.starperf.com . Been working great for 2-3 years now .
Reply
Corvette Stories

The Best of Corvette for Corvette Enthusiasts

story-0

10 Ugly Corvettes That We Still Kinda Love

 Joe Kucinski
story-1

Top 10 Most Expensive Corvettes Ever Sold on Bring A Trailer

 Brett Foote
story-2

10 Things Every Corvette Owner Needs (2026 Edition)

 Michael S. Palmer
story-3

8 Most "Only Corvette Owners Understand" Quirks and Problems

 Pouria Savadkouei
story-4

10 Reasons the C6 Z06 is Still A Performance Benchmark After 20 Years

 Joe Kucinski
story-5

How Much Horsepower Every Corvette Engine "LOST" in 1972

 Joe Kucinski
story-6

Top 10 DOs and DON'Ts for Protecting Your Convertible Top!

 Michael S. Palmer
story-7

Top 10 Most Explosive Corvettes Ever Made: Power-to-Weight Ratio Ranked!

 Joe Kucinski
story-8

150 hp to 1,250 hp: Every Corvette Generation Compared by the Specs That Matter

 Joe Kucinski
story-9

8 Coolest Corvette Pace Cars (and Replicas) of All Time

 Verdad Gallardo
Old Jan 12, 2016 | 03:27 PM
  #29  
ralc's Avatar
ralc
Heel & Toe
 
Joined: Jun 2011
Posts: 18
Likes: 0
Default tach drive distributor

nelson specialties 7046626600 has numerous OEM units in stock. Many of the aftermarket HEI units (Chinese) have an undersized housing causing low oil pressure
Originally Posted by fgp73
I have a '73 Vette that had its distributor replaced with a non tach drive distributor. I sure would like to have it replaced with one that will drive the tachometer. Is there a consensus on what type would be best?

Any info would be helpful
Reply
Old Jan 12, 2016 | 03:31 PM
  #30  
ralc's Avatar
ralc
Heel & Toe
 
Joined: Jun 2011
Posts: 18
Likes: 0
Default Bronze gear

Bronze gears are made for most OEM and aftermarket distributors although many aftermarket units have a different shaft diameter
Originally Posted by UBETRUN
Can the ebay tach drive distributor be changed to a bronze gear for a mechanical roller cam? I know I can order the bronze gear for other distributors, just don't know if they are all the same.
Reply
Old Jan 12, 2016 | 06:16 PM
  #31  
redvetracr's Avatar
redvetracr
Race Director
25 Year Member
Photogenic
Photoriffic
Shutterbug
 
Joined: Aug 1999
Posts: 18,126
Likes: 174
From: WI
Default

Originally Posted by ralc
Bronze gears are made for most OEM and aftermarket distributors although many aftermarket units have a different shaft diameter

are you aware you are posting to a six year old thread?
Reply




All times are GMT -4. The time now is 07:56 AM.

story-0
10 Ugly Corvettes That We Still Kinda Love

Slideshow: 10 ugly Corvettes that we still kinda love.

By Joe Kucinski | 2026-06-03 10:34:17


VIEW MORE
story-1
Top 10 Most Expensive Corvettes Ever Sold on Bring A Trailer

A lot of money has changed hands at the online auction house over the years.

By Brett Foote | 2026-06-03 10:21:50


VIEW MORE
story-2
10 Things Every Corvette Owner Needs (2026 Edition)

Slideshow: 10 great gifts Corvette enthusiasts actually want for Father's Day!

By Michael S. Palmer | 2026-06-03 15:43:40


VIEW MORE
story-3
8 Most "Only Corvette Owners Understand" Quirks and Problems

Slideshow: These are the quirks, annoyances, and oddly lovable problems that every Corvette owner eventually learns to live with.

By Pouria Savadkouei | 2026-05-28 09:31:39


VIEW MORE
story-4
10 Reasons the C6 Z06 is Still A Performance Benchmark After 20 Years

Slideshow: 10 reasons why the C6 Z06 is still a performance benchmark after 20 years.

By Joe Kucinski | 2026-05-27 17:20:09


VIEW MORE
story-5
How Much Horsepower Every Corvette Engine "LOST" in 1972

Slideshow: How much horsepower every Corvette engine lost in 1972.

By Joe Kucinski | 2026-05-27 16:54:53


VIEW MORE
story-6
Top 10 DOs and DON'Ts for Protecting Your Convertible Top!

Slideshow: How to Protect A Convertible Top: 10 DOs & DON'Ts

By Michael S. Palmer | 2026-04-03 00:00:00


VIEW MORE
story-7
Top 10 Most Explosive Corvettes Ever Made: Power-to-Weight Ratio Ranked!

Slideshow: The 10 most explosive Corvettes ever built based on power-to-weight ratio.

By Joe Kucinski | 2026-05-20 07:23:03


VIEW MORE
story-8
150 hp to 1,250 hp: Every Corvette Generation Compared by the Specs That Matter

Slideshow: From C1 to C8 we compare every Corvette generation by the numbers.

By Joe Kucinski | 2026-05-12 16:54:12


VIEW MORE
story-9
8 Coolest Corvette Pace Cars (and Replicas) of All Time

Slideshow: Some Corvette pace cars became collectible legends, while others perfectly captured the look and attitude of their era.

By Verdad Gallardo | 2026-05-11 09:50:51


VIEW MORE