Horsepower Gain from Pertronix Ignitor III - Pontiac GTO Forum
User Tag List

Reply
 
LinkBack Thread Tools Display Modes
post #1 of 22 (permalink) Old 12-28-2009, 12:12 PM Thread Starter
 
xcmac26's Avatar
 
Join Date: Nov 2008
Posts: 489
Mentioned: 0 Post(s)
Tagged: 0 Thread(s)
Quoted: 5 Post(s)
Horsepower Gain from Pertronix Ignitor III

I've heard and read the claims of increased HP from the ignitor III (which makes perfect sense) but haven't found a dyno chart anywhere online. Anyone have an idea of the actual gain from one of these units? Preferably someone who's done a before and after dyno run.

xcmac26 is offline  
Sponsored Links
Advertisement
 
post #2 of 22 (permalink) Old 12-29-2009, 10:04 PM
 
66tempestGT's Avatar
 
Join Date: Nov 2009
Location: montevallo,al
Posts: 1,373
Mentioned: 0 Post(s)
Tagged: 0 Thread(s)
Quoted: 0 Post(s)
much like the claims some spark plug manufacturers make, the only way you will gain horsepwer is if your old points system was faulty or out of adjustment. a properly tuned points system will produce equal HP to an electronic ignition. the benifit of electronic ignition is that there is no tuning. no dwell meter etc. SIMPLICITY RELIABILITY. no hp gain.
66tempestGT is offline  
post #3 of 22 (permalink) Old 12-29-2009, 10:08 PM
 
66tempestGT's Avatar
 
Join Date: Nov 2009
Location: montevallo,al
Posts: 1,373
Mentioned: 0 Post(s)
Tagged: 0 Thread(s)
Quoted: 0 Post(s)
they may have addressed this, but the ignitor i ran back in the day had stiff wires running to it. when the vacuum advance moves the ignitor it caused the wires to flex back and forth and eventually break.
66tempestGT is offline  
 
post #4 of 22 (permalink) Old 12-30-2009, 08:30 AM
Former Moderator
 
68greengoat's Avatar
 
Join Date: Sep 2005
Location: Northern Wisconsin
Posts: 3,523
Mentioned: 0 Post(s)
Tagged: 1 Thread(s)
Quoted: 1 Post(s)
Here's the claim:

'The Pertronix Ignitor III is the advanced points replacement kit. It is literally an ignition box inside your distributor. It features multiple sparks throughout the entire RPM range and a high resolution REV limiter accurate to +/- 50 RPM which is set by the user. The Ignitor III module generates 5 times more spark than points. This of course means more spark energy creating more horsepower and better mileage. Ignition box performance without the box."

By reading the above, it appears to me that, how could it not increase hp. A hotter spark that generates a better more complete burn should equal more hp, IMO. Exactly how much is another story. You would have to dyno before and after to get exact numbers like was originally asked by the OP. With this unit you also need to run a hotter coil......

They did address the stiff wires.



SOLD.....
462ci, 4spd
Performer Intake, Mild Cam
Pertronix Ignitor III
Accel Super Coil, Accel 8.8mm Wires

Last edited by 68greengoat; 12-30-2009 at 10:07 AM.
68greengoat is offline  
post #5 of 22 (permalink) Old 12-30-2009, 11:40 AM
 
Old Goat 67's Avatar
 
Join Date: Feb 2009
Location: Louisiana, Original Owner
Posts: 48
Mentioned: 0 Post(s)
Tagged: 0 Thread(s)
Quoted: 0 Post(s)
Sounds like P T Barnum is still alive.
Old Goat 67 is offline  
post #6 of 22 (permalink) Old 12-30-2009, 01:20 PM Thread Starter
 
xcmac26's Avatar
 
Join Date: Nov 2008
Posts: 489
Mentioned: 0 Post(s)
Tagged: 0 Thread(s)
Quoted: 5 Post(s)
spark is spark, you'll get it from any plug, wire, ignition system, etc. however, spark advance at higher rpm WILL increase HP. That's how little 600cc motorcycles are pumping out over 120 horses these days at 16000+ rpm.

so...anyone have an answer?

xcmac26 is offline  
post #7 of 22 (permalink) Old 12-30-2009, 02:21 PM
Former Super Moderator
 
Rukee's Avatar
 
Join Date: Feb 2007
Location: South Central Wisconsin
Posts: 9,919
Mentioned: 0 Post(s)
Tagged: 0 Thread(s)
Quoted: 21 Post(s)
You're missing the point, it provides MULTPUL sparks per compression stoke. This burns more of the fuel in the cyl making more power.
Every person I've installed an MSD unit into was impressed with the faster starts and increased seat of your pants performance indicator. No dyno runs though.
Rukee is offline  
post #8 of 22 (permalink) Old 12-30-2009, 03:04 PM
64-67 Expert
 
geeteeohguy's Avatar
 
Join Date: Feb 2008
Location: Fresno, California
Posts: 8,474
Mentioned: 0 Post(s)
Tagged: 0 Thread(s)
Quoted: 99 Post(s)
I think it would not increase power UNLESS you had a marginal points/condensor set-up to begin with. If your plugs are all firing, and you have no sign of misfire, multiple sparks at the same time would make no real difference. I Ithink if you had partially fouled plugs, the hotter multiple spark set-up would give you an advantage. In cold weather, it would probably give a faster start-up and more complete burn. Probably. Sort of like synthetic oil: no real advantage, except when it gets really hot: mineral based oil cokes up at high temps, synthetic doesn't, so if you overheat, you have an extra margin of safety for your engine. I run stock Delco DP!!2P points in both of my GTO's, and have for thirty years without problems. Problem now is finding quality ignition points these days! Main advantage I see is no maintenence, no dwell change as points wear, and convenience. Probably a good upgrade, just one I never seem to get around to.
geeteeohguy is online now  
post #9 of 22 (permalink) Old 12-30-2009, 10:07 PM
 
646904GTO's Avatar
 
Join Date: Feb 2008
Location: Lake Stevens, Wa
Posts: 235
Mentioned: 0 Post(s)
Tagged: 0 Thread(s)
Quoted: 3 Post(s)
The advantage of the electronic trigger over the points/condenser set is that the 'dwell' (look up 'coil saturation')is not variable. Thus more consistent and equal ignition time for each firing cylinder. So you get better performance because the 'burn time' of each cylinder is the same. Of course that is directly related to the carb tune and manifold flow. Short answer yes it is a better more reliable system. Happy new year all!

1964 400 4 speed Roller cammed RoadRacer
1969 400 T400 auto 2nd owner
2004 LS1 6 speed modded for roadracing
1966 GTO Altered wheelbase former 1970s show car
1973 Challenger 360/727
1931 Ford Model A
646904GTO is offline  
post #10 of 22 (permalink) Old 12-30-2009, 10:14 PM
 
66tempestGT's Avatar
 
Join Date: Nov 2009
Location: montevallo,al
Posts: 1,373
Mentioned: 0 Post(s)
Tagged: 0 Thread(s)
Quoted: 0 Post(s)
Quote:
Originally Posted by 646904GTO View Post
The advantage of the electronic trigger over the points/condenser set is that the 'dwell' (look up 'coil saturation')is not variable. Thus more consistent and equal ignition time for each firing cylinder. So you get better performance because the 'burn time' of each cylinder is the same. Of course that is directly related to the carb tune and manifold flow. Short answer yes it is a better more reliable system. Happy new year all!
Short answer yes it is a better more reliable system

the reason you dont see a dyno comparison is that there is an insignificant difference if any at all. i can assure you that if there were substantial gains pertronics would pop an engine on the dyno and show you.
66tempestGT is offline  
Sponsored Links
Advertisement
 
Reply

  Pontiac GTO Forum > The 1964-1974 Pontiac Tempest, Lemans & GTO > 1964-1974 Tempest, Lemans & GTO General Discussion

Quick Reply
Message:
Options

Register Now



In order to be able to post messages on the Pontiac GTO Forum forums, you must first register.
Please enter your desired user name, your email address and other required details in the form below.

User Name:
Password
Please enter a password for your user account. Note that passwords are case-sensitive.

Password:


Confirm Password:
Email Address
Please enter a valid email address for yourself.

Email Address:
OR

Log-in











Currently Active Users Viewing This Thread: 1 (0 members and 1 guests)
 
Thread Tools
Show Printable Version Show Printable Version
Email this Page Email this Page
Display Modes
Linear Mode Linear Mode



Similar Threads
Thread Thread Starter Forum Replies Last Post
Subwoofer Gain - DO IT NOW! tanktronic 2004-2006 GTO General Discussion 6 07-05-2007 11:43 AM
Engine Ratings Get a New Equalizer The_Goat The Lounge 2 10-03-2005 09:46 PM
'05 GTO Horsepower (?) Quizcoot 2004-2006 GTO General Discussion 7 09-19-2005 01:40 PM

Posting Rules  
You may post new threads
You may post replies
You may not post attachments
You may not edit your posts

BB code is On
Smilies are On
[IMG] code is On
HTML code is Off
Trackbacks are On
Pingbacks are On
Refbacks are On

 
For the best viewing experience please update your browser to Google Chrome