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

Points & Condensor Help

Thread Tools
 
Search this Thread
 
Old May 28, 2010 | 09:31 PM
  #1  
73Tahitian's Avatar
73Tahitian
Thread Starter
Intermediate
 
Joined: Mar 2010
Posts: 34
Likes: 0
Default Points & Condensor Help

'73 BB Stock

Ok, so I went to install the standard points and condensor and the condensor on the car looks nothing like the standard stock. There is no wire coming out of the end. It looks to be screwed in to the points bracket. Can I just install the stock one's that I picked up at the store? Anyone know what points and condensor set this is?

Thanks,
Ryan



Reply
Old May 28, 2010 | 09:37 PM
  #2  
my 76 ray's Avatar
my 76 ray
Melting Slicks
15 Year Member
 
Joined: Mar 2007
Posts: 2,520
Likes: 11
From: Hinckley OH
Default

I don''t know what those points and condenser are, but you should be able to use the stock condensor. It should have a hold down that screws to the distributor plate and the wire connects at the same place the black power wire connects.
Reply
Old May 28, 2010 | 10:41 PM
  #3  
7T1vette's Avatar
7T1vette
Team Owner
15 Year Member
Community Builder
Community Influencer
Top Answer: 5
 
Joined: Jan 2006
Posts: 37,637
Likes: 3,114
From: Crossville TN
Default

That's just an aftermarket set that has points and condenser mounted together and already wired. You can remove that and install standard [separate] components or find a similar unit to replace it. The function is the same. Lars recommends a specific brand and model of points and condenser, but you would have to e-mail him for that info {V8fastcars@msn.com}.
Reply
Old May 29, 2010 | 02:19 AM
  #4  
73Tahitian's Avatar
73Tahitian
Thread Starter
Intermediate
 
Joined: Mar 2010
Posts: 34
Likes: 0
Default

Thanks guys...I will reach out to Lars
Reply
Old May 29, 2010 | 08:51 AM
  #5  
capevettes's Avatar
capevettes
CF Community Team
Supporting Lifetime
20 Year Member
Active Streak: 90 Days
Active Streak: 120 Days
Conversation Starter
 
Joined: Oct 2004
Posts: 19,350
Likes: 5,240
From: Cape Cod, Mass.
2025 C6 of the Year Finalist - Unmodified
2025 C8 Z06/7/E-Ray of the Year Finalist - Unmodified
2023 C3 of the Year Finalist - Unmodified
2021 C8 of the Year Finalist Unmodified
2020 Corvette of the Year Finalist (performance mods)
2019 C1 of Year Winner (performance mods)
2017 Corvette of the Year Finalist
2016 C2 of Year
2015 C3 of Year Finalist
Default

I use the Accell points and condenser. They are well made and have the separate/correct points and condenser. Looks like yours are the so called uni-points.
Reply
Old May 29, 2010 | 08:59 AM
  #6  
mrvette's Avatar
mrvette
Team Owner
Active Streak: 120 Days
Liked
Loved
Community Favorite
 
Joined: Jul 1999
Posts: 65,492
Likes: 230
From: Orange Park Florida
Default

Also watch out for that little short black wire going from the points plate to the dizzy body, it's a grounding wire, very necessary or you will have nothing but troubles with start/running.....

held by two screws....they are available, and made from really thin stranded 'flex' wire, ordinary wire will not last long....

Reply
Old May 29, 2010 | 09:45 AM
  #7  
jackson's Avatar
jackson
Le Mans Master
 
Joined: Sep 2001
Posts: 7,739
Likes: 630
From: Unreconstructed, South Carolina
Default

Originally Posted by 7T1vette
That's just an aftermarket set that has points and condenser mounted together and already wired. You can remove that and install standard [separate] components or find a similar unit to replace it. The function is the same. Lars recommends a specific brand and model of points and condenser, but you would have to e-mail him for that info {V8fastcars@msn.com}.

they're often referred to as "UNI-POINT" & they're AOK for most folks.

NAPA sells ECHLIN brand ignition and it's very good. Pretty sure Accel ign parts made by Echlin.

Other stores sell STANDARD IGNITION brand ignition ... it has a premium segment called BLUE STREAK that's very good. My hunch: Ryan's unipoint is blue streak DR-3575CX.

fyi ... standard sells the thin ground wire (DDL-21) ... & dang near every other small ign part ... they have a quirky but useful online eCatalog w/pics but they do NOT sell online ... get em at your local parts house.

http://www.standardbrand.com/Online+...g/Content.aspx

Last edited by jackson; May 29, 2010 at 10:00 AM. Reason: moinfo
Reply
Old May 29, 2010 | 10:46 PM
  #8  
lars's Avatar
lars
Tech Contributor
Supporting Lifetime Gold
25 Year Member
Conversation Starter
Photogenic
Top Answer: 3
 
Joined: Aug 1999
Posts: 14,366
Likes: 6,346
From: At my Bar drinking and wrenching in Lafayette Colorado
Default

I test a heckuva lot of distributors on my SUN distributor machine, and I run stuff on the dyno. Here is my recommendation:

The NAPA/Echlin CS786 points with the RR175 condensor will accurately fire the plugs beyond 6,000 rpm with excellent reliability and outstanding service life. The NAPA/Balkamp line sells a GM distributor hardware kit with the points and condenser hold-down screws for those distributors that have had the "UniPoints" installed and the hardware discarded... I don't have the part number handy at this posting - if anyone needs the part number, e-mail me and I'll get it for you.

If you are spinning your engine beyond 6,000 rpm, run the Mallory 102 points. I just ran one of my engines on the dyno with these points in a stock distributor triggering an MSD 6AL system, and we ran it past 7,000 rpm with no misfire at all. The Mallory points do see a little more rubbing block wear than the CS768 points due to spring tension, so you'll need to check dwell at least every 10,000 miles...

("Oh, Gawd... "points" are SOOO unreliable.... I'm going to switch to "PerTronix" so I don't have to do all that MAINTENANCE once every 5 years.")

If anyone posts that, I'll call you a *****.

Lars
V8FastCars@msn.com

Last edited by lars; May 29, 2010 at 10:55 PM.
Reply
Corvette Stories

The Best of Corvette for Corvette Enthusiasts

story-0

Top 10 Corvette Engines RANKED by Peak Torque (70+ Years of Muscle!)

 Joe Kucinski
story-1

Corvette ZR1X Will Be Pacing the Indy 500, And Could Probably Race, Too!

 Verdad Gallardo
story-2

Top 10 Corvettes Coming to Mecum Indy 2026!

 Brett Foote
story-3

Top 10 C9 Corvette MUST-HAVES to Fix These C8 Generation Flaws!

 Michael S. Palmer
story-4

10 Revolutionary 'Corvette Firsts' Most People Don't Know

 Joe Kucinski
story-5

5 Reasons to Upgrade to an LS6-Powered Corvette; 5 Reasons to Stay LT2

 Michael S. Palmer
story-6

2027 Corvette vs The World: Every C8 vs Its Closest Competitor

 Joe Kucinski
story-7

10 Most Common Corvette Problems of the Last 20 Years!

 Joe Kucinski
story-8

5 MOST and 5 LEAST Popular Corvette Model Years in History!

 Joe Kucinski
story-9

2027 Corvette Buyer's Guide: Everything You Need to Know!

 Joe Kucinski
Old Jun 2, 2010 | 12:11 PM
  #9  
Grinchia's Avatar
Grinchia
Pro
10 Year Member
 
Joined: Oct 2003
Posts: 641
Likes: 2
From: Storm lake Iowa
Default

Now I'm curious...I bought my car from bubba 7 years ago, knowing nothing about old cars but planning to learn. I have stuck with the condenser setup on the car when purchased. I seem to have that 'integral' condenser installed near the points, AND an 'external' condenser mounted on the side of the coil mounting bracket, with a black wire going to the positive (?) side of the coil. Are both necessary, or is this bubba? Please forgive my ignorance :o
Reply
Old Jun 2, 2010 | 12:40 PM
  #10  
lars's Avatar
lars
Tech Contributor
Supporting Lifetime Gold
25 Year Member
Conversation Starter
Photogenic
Top Answer: 3
 
Joined: Aug 1999
Posts: 14,366
Likes: 6,346
From: At my Bar drinking and wrenching in Lafayette Colorado
Default

There should be a single condenser only - not two. The wire should go from the condenser to the points. There is a second wire that goes from the points to the "-" side of the coil. The "+" side of the coil goes to the ignition switch. There should not be any wire from the distributor to the "+" side of the coil.
Reply
Old Jun 2, 2010 | 12:44 PM
  #11  
Mike Ward's Avatar
Mike Ward
Race Director
10 Year Member
 
Joined: Jul 2001
Posts: 15,892
Likes: 42
Default

Originally Posted by lars

("Oh, Gawd... "points" are SOOO unreliable.... I'm going to switch to "PerTronix" so I don't have to do all that MAINTENANCE once every 5 years.")

If anyone posts that, I'll call you a *****.

Lars
V8FastCars@msn.com
Followed by 'it's so much fun swapping the points back in after getting stranded on a dark and stormy night'.

BTDT, still got the greasy old t-shirt

To save myself time, I pre-swapped my points back into the dizzy to save myself the trouble later on.
Reply
Old Jun 2, 2010 | 12:49 PM
  #12  
...Roger...'s Avatar
...Roger...
Race Director
 
Joined: May 2006
Posts: 16,528
Likes: 53
From: Dayton, Ohio
Default

Originally Posted by Grinchia
Now I'm curious...I bought my car from bubba 7 years ago, knowing nothing about old cars but planning to learn. I have stuck with the condenser setup on the car when purchased. I seem to have that 'integral' condenser installed near the points, AND an 'external' condenser mounted on the side of the coil mounting bracket, with a black wire going to the positive (?) side of the coil. Are both necessary, or is this bubba? Please forgive my ignorance :o
The condenser on the side of the coil bracket going to coil + is a radio suppressor. It keeps pops out of the radio (AM I believe).
Reply
Old Jun 2, 2010 | 12:52 PM
  #13  
...Roger...'s Avatar
...Roger...
Race Director
 
Joined: May 2006
Posts: 16,528
Likes: 53
From: Dayton, Ohio
Default

Originally Posted by lars
I'll call you a *****.
Shame on you , this supposed to be a family friendly forum.
Reply
Old Jun 2, 2010 | 01:18 PM
  #14  
Grinchia's Avatar
Grinchia
Pro
10 Year Member
 
Joined: Oct 2003
Posts: 641
Likes: 2
From: Storm lake Iowa
Default

Originally Posted by ...Roger...
The condenser on the side of the coil bracket going to coil + is a radio suppressor. It keeps pops out of the radio (AM I believe).
Aha! Since I have no radio whatsoever, and since I clearly have a condenser built in to the distributor, with a black wire coming over to the coil, I don't need the 'extra' unit attached to the coil bracket. I shall remove it and see if there is any noticeable effect. Lars, I suspect the distributor wire does indeed go to the negative side of the coil, I'll check when I get home though.
Reply
Old Jun 2, 2010 | 01:30 PM
  #15  
lars's Avatar
lars
Tech Contributor
Supporting Lifetime Gold
25 Year Member
Conversation Starter
Photogenic
Top Answer: 3
 
Joined: Aug 1999
Posts: 14,366
Likes: 6,346
From: At my Bar drinking and wrenching in Lafayette Colorado
Default

Sorry, I misread your post - I thought you had 2 condensers installed in the distributor. If you have the Unipoints with an attached condenser in the distributor, that's fine. From your points, there will be a single wire to the "-" side of the coil. On the "+" side of the coil will be a radio noise supression condenser along with 2 wires - 1 from the starter "R" terminal and 1 from the ignition switch. You have nothing to gain by removing the noise suppression condenser on the coil.
Reply
Old Jun 2, 2010 | 03:36 PM
  #16  
Solid LT1's Avatar
Solid LT1
Le Mans Master
10 Year Member
 
Joined: Dec 2003
Posts: 5,727
Likes: 38
From: Fremont CA
Default

Lars if you really knew your Echlin ignition line you would go for the CS89 or CS7860 points sets both have higher tension springs than the CS786 points.

That being said, I'll keep my Pertronix!

If anyone really loves points and high RPMs, I have a NOS Sig Erson Delco pionts cam for high rpm use, $75 to the first bidder (should be stable through about 7500-8000RPM.)

I even have a NOS Delco Z/28 Camaro high RPM breaker cam, guaranteed to burn any points set within 3000 miles just like my old Camaro did back in the 70's before I went to a K-66 TI unit triggering a MSD box. Finding that the MSD box was voltage sensitive and moved the timing around, I then did a Perlux Ignitor conversion on it in 1982 which was on it and still working strong when I sold it in 2004 (yes it would run to 7000RPM on new points but, I don't want to go back there!)

I even have some vintage NOS Echlin points sets in my Echlin Service cabinet if I can find them (last time I checked they were around $20 a set, I used to sell them for $4 back in the days.)

Me, I'm going to run a MSD 6AL-2 Programmable unit using a crank trigger on my "bullet" that is presently going togehter, I have too much time and money invested in it to trust it to anything else.

Last edited by Solid LT1; Jun 2, 2010 at 03:43 PM.
Reply
Old Jun 2, 2010 | 09:58 PM
  #17  
vettes4evr's Avatar
vettes4evr
Racer
 
Joined: Jan 2010
Posts: 402
Likes: 1
From: Medford NJ
Default

I installed a brand new set of Delco points in my LT-1 and couldn't get it to run stable or adjust the dwell past 25. I replaced them with a cheap $6 set of Borg Warner points from Advance Auto and it runs fine with full adjustment of the dwell. No more Delco points for me.
Reply

Get notified of new replies

To Points & Condensor Help

Old Jun 3, 2010 | 09:27 AM
  #18  
lars's Avatar
lars
Tech Contributor
Supporting Lifetime Gold
25 Year Member
Conversation Starter
Photogenic
Top Answer: 3
 
Joined: Aug 1999
Posts: 14,366
Likes: 6,346
From: At my Bar drinking and wrenching in Lafayette Colorado
Default

Originally Posted by Solid LT1
Lars if you really knew your Echlin ignition line you would go for the CS89 or CS7860 points sets both have higher tension springs than the CS786 points.
I have tested all of the Echlin points, so I know them quite well - I have an inventory on hand of all the part numbers for GM distributors. Yes, there are points with higher spring tension than the CS786, and those points will spin beyond 6000 rpm. However, those points also see much faster rubbing block wear due to the high tension, and most street engines do not produce power beyond 6000, so there is no "point" in using them (pun intended). The CS786 points will reliably fire the plugs up through 6000 and see very little rubbing block wear, allowing them to run without maintenance or adjustment for 20,000+ miles. For most collector cars, that means they will last the lifetime of the vehicle with complete reliability.

I've never had to carry a PerTronix system in the trunk as a backup in case my points failed...

Lars
Reply
Old Jun 3, 2010 | 05:45 PM
  #19  
phclub's Avatar
phclub
Racer
15 Year Member
 
Joined: Apr 2004
Posts: 370
Likes: 0
New England Events Coordinator
Default

I am ready to do the points & condenser, I have no high temp lube for the points, what should I ask for at the parts store, high temp cam lube? Is there a similar product that will suffice?

Last edited by phclub; Jun 3, 2010 at 05:55 PM.
Reply
Old Jun 3, 2010 | 08:10 PM
  #20  
73jst4fun's Avatar
73jst4fun
Drifting
15 Year Member
 
Joined: Nov 2002
Posts: 1,951
Likes: 1
From: Shore NJ
Default

Originally Posted by lars
I have tested all of the Echlin points, so I know them quite well - I have an inventory on hand of all the part numbers for GM distributors. Yes, there are points with higher spring tension than the CS786, and those points will spin beyond 6000 rpm. However, those points also see much faster rubbing block wear due to the high tension, and most street engines do not produce power beyond 6000, so there is no "point" in using them (pun intended). The CS786 points will reliably fire the plugs up through 6000 and see very little rubbing block wear, allowing them to run without maintenance or adjustment for 20,000+ miles. For most collector cars, that means they will last the lifetime of the vehicle with complete reliability.

I've never had to carry a PerTronix system in the trunk as a backup in case my points failed...

Lars
I had a Pertronix unit crap out on me...good thing it happened in my driveway...that being said we used Blue Streak HD points way back when and they performed great, I dont even know if they are made anymore...
Reply



All times are GMT -4. The time now is 03:39 AM.

story-0
Top 10 Corvette Engines RANKED by Peak Torque (70+ Years of Muscle!)

Slideshow: Ranking the top 10 Corvette engines by torque output.

By Joe Kucinski | 2026-05-05 11:58:09


VIEW MORE
story-1
Corvette ZR1X Will Be Pacing the Indy 500, And Could Probably Race, Too!

Slideshow: A Corvette pace car nearly matching IndyCar speeds sounds exaggerated, until you look at the numbers.

By Verdad Gallardo | 2026-05-04 20:03:36


VIEW MORE
story-2
Top 10 Corvettes Coming to Mecum Indy 2026!

Among a rather large group of them.

By Brett Foote | 2026-05-04 13:56:44


VIEW MORE
story-3
Top 10 C9 Corvette MUST-HAVES to Fix These C8 Generation Flaws!

Slideshow: the top 10 things Corvette owners want in the C9 Corvette

By Michael S. Palmer | 2026-04-30 12:41:15


VIEW MORE
story-4
10 Revolutionary 'Corvette Firsts' Most People Don't Know

Slideshow: 10 Important Corvette 'firsts' that every fan should know.

By Joe Kucinski | 2026-04-29 17:02:16


VIEW MORE
story-5
5 Reasons to Upgrade to an LS6-Powered Corvette; 5 Reasons to Stay LT2

Slideshow: Should you buy a 2020-2026 Corvette or wait for 2027?

By Michael S. Palmer | 2026-04-22 10:08:58


VIEW MORE
story-6
2027 Corvette vs The World: Every C8 vs Its Closest Competitor

Slideshow: 2027 Corvette lineup vs the world.

By Joe Kucinski | 2026-04-24 16:12:42


VIEW MORE
story-7
10 Most Common Corvette Problems of the Last 20 Years!

Slideshow: 10 major Corvette problems from the last 20 years.

By Joe Kucinski | 2026-04-14 16:37:05


VIEW MORE
story-8
5 MOST and 5 LEAST Popular Corvette Model Years in History!

Slideshow: 5 most and least popular Corvette model years.

By Joe Kucinski | 2026-04-08 13:25:01


VIEW MORE
story-9
2027 Corvette Buyer's Guide: Everything You Need to Know!

Slideshow: 2027 Corvette buyer's guide

By Joe Kucinski | 2026-04-17 16:41:08


VIEW MORE