#1  
Old 01-23-2023, 09:16 PM
grandville455's Avatar
grandville455 grandville455 is offline
Ultimate Warrior
 
Join Date: Jan 2003
Location: Chippewa Falls,WI 54729
Posts: 10,836
Default Crank trigger bracket

This is for all my Pontiac friends that have motor plates with a crank trigger and trying to mount it with the plate.A friend drew this up on his cad and his son then machined it,it turned out killer! I’m mounting mine on the drivers side but can be milled so it mounts on the passenger side like most do also! I’m gauging interest in how many people would like this done for theirs,he’s still deciding on a cost to do it also at this time,let me know if interested! I talked to his dad and he said if u can include a return shipping label,he can do them for $125

https://drive.google.com/file/d/1H7m...5nyHjYQKR/view
Attached Thumbnails
Click image for larger version

Name:	0BA28DAD-1834-4341-B195-B43FC4499CB7.jpg
Views:	195
Size:	65.4 KB
ID:	605867   Click image for larger version

Name:	B5F7B265-69A2-4EDA-8C48-39E86DD57B7C.jpg
Views:	195
Size:	79.6 KB
ID:	605868   Click image for larger version

Name:	1C4C02E4-14A6-4626-A5DF-BB35295345C8.jpg
Views:	171
Size:	82.3 KB
ID:	605869  

__________________
Darby
74 Grandville 2Dr 455 c.i 4550#
2011 1.60 60 ft,7.33@94.55-11.502@117.74


2017, 74 firebird -3600 lbs (all bests) 1.33 60 ft, 6.314@108.39 9.950@134.32
M/T 275/60 ET SS Drag Radial

2023,(Pontiac 505) 1.27 60 ft, 5.97@112.86, 9.48@139.31.... 275/60 Radial Pro's
  #2  
Old 01-23-2023, 10:36 PM
R 70 Judge's Avatar
R 70 Judge R 70 Judge is offline
Ultimate Warrior
 
Join Date: Mar 2002
Location: San Diego, CA
Posts: 2,691
Default

That’s rad! Very nice piece

__________________
James
1970 Trans Am

Spotts Built 484" IA2, Highports, EFI Northwind
Terminator X sequential EFI fabrication and suspension by
https://www.funkhouserracecars.com/
  #3  
Old 02-13-2023, 11:44 AM
grandville455's Avatar
grandville455 grandville455 is offline
Ultimate Warrior
 
Join Date: Jan 2003
Location: Chippewa Falls,WI 54729
Posts: 10,836
Default

The fit in this is Awesome,he’ll also mill off 1/8” on sensor bracket so it aligns on trigger wheel perfectly!!
Attached Thumbnails
Click image for larger version

Name:	D35716C9-418D-4A64-9A4F-CBA93CD790BB.jpg
Views:	153
Size:	52.6 KB
ID:	607127   Click image for larger version

Name:	0712B921-CDB7-47DE-AA2B-1ADB7EB8A12A.jpg
Views:	147
Size:	58.9 KB
ID:	607128  

__________________
Darby
74 Grandville 2Dr 455 c.i 4550#
2011 1.60 60 ft,7.33@94.55-11.502@117.74


2017, 74 firebird -3600 lbs (all bests) 1.33 60 ft, 6.314@108.39 9.950@134.32
M/T 275/60 ET SS Drag Radial

2023,(Pontiac 505) 1.27 60 ft, 5.97@112.86, 9.48@139.31.... 275/60 Radial Pro's
The Following User Says Thank You to grandville455 For This Useful Post:
  #4  
Old 02-14-2023, 09:19 AM
Don 79 TA Don 79 TA is offline
Ultimate Warrior
 
Join Date: Sep 2007
Posts: 1,668
Default

does he offer anything to fit a non-motor plate setup, with stock cover?
so how much better is a crank trigger vs distributor?
more better for higher rpm?
i spin 6k-6500
wondering if i'd gain anything going to a balancer with magents and going crank trigger
but i don't want to deal with pulley alignment issues and what not
my setup is more pro-street and strip when/and if i can
I don't really see timing bouncing or anything with my current setup
is a crank trigger more beneficial with a solid type of cam?
just checking to see what others results were when changing to one
sorry don't mean to hijack this

  #5  
Old 02-25-2023, 05:23 AM
chuckies76ta's Avatar
chuckies76ta chuckies76ta is offline
Ultimate Warrior
 
Join Date: Jun 2004
Location: Canada
Posts: 3,078
Default

Quote:
Originally Posted by Don 79 TA View Post
so how much better is a crank trigger vs distributor?
more better for higher rpm?
i spin 6k-6500
wondering if i'd gain anything going to a balancer with magents and going crank trigger
but i don't want to deal with pulley alignment issues and what not
my setup is more pro-street and strip when/and if i can
I don't really see timing bouncing or anything with my current setup
is a crank trigger more beneficial with a solid type of cam?
just checking to see what others results were when changing to one
sorry don't mean to hijack this

Don: The Crank trigger will give you rock solid timing when looking at it with the timing light. No timing bouncing around on the balancer.

You take your distributor and lock it out. You adjust timing with the crank trigger sensor.

The balancer with the magnets will definitely help with pulley alignment as the crank trigger plate with magnets is like 1/4" thick moving pulleys forward.
After installed you phase you distributor cap to the rotor with your timing light. You cut a hole in distributor cap so you can see where the rotor contact point it when it fires.

__________________
68 Firebird. IA2 block, 505 cu in, E-head, Solid roller 3650 weight. Reid TH400 4:11 gear. 29" slick.
Best so far 10.12@133 mph. 1.43 60 ft.
76 Trans am, TKX .81 o/d, 3.73 Moser rearend,
468 with KRE D-ports, Doug headers, 3" Exh.
The Following User Says Thank You to chuckies76ta For This Useful Post:
  #6  
Old 02-25-2023, 09:28 AM
Dragncar Dragncar is offline
Ultimate Warrior
 
Join Date: Mar 2004
Location: Humbolt County California
Posts: 8,283
Default

Ken at the old PPR had a dyno. He made some runs and then made a change, crank trigger.
It was worth 7 HP.

  #7  
Old 02-25-2023, 10:34 AM
chuckies76ta's Avatar
chuckies76ta chuckies76ta is offline
Ultimate Warrior
 
Join Date: Jun 2004
Location: Canada
Posts: 3,078
Default

Quote:
Originally Posted by Don 79 TA View Post
so how much better is a crank trigger vs distributor?
more better for higher rpm?
i spin 6k-6500
this

Don, So I was thinking about this, this morning.

A crank trigger signal for timing is much better in my opinion as like I've stated it's rock solid. Reason is you eliminate the timing chain and sprockets, distributor gear, Cam gear, out of the equation. This is was causes the timing to bounce around as the engine shakes when running. In the higher RPM's, maybe not so much bouncing around but I seen it with a timing light. Your taking a solid signal from the crank as it turns and sending it directly to the msd box or distributor. Hope this makes sense.

__________________
68 Firebird. IA2 block, 505 cu in, E-head, Solid roller 3650 weight. Reid TH400 4:11 gear. 29" slick.
Best so far 10.12@133 mph. 1.43 60 ft.
76 Trans am, TKX .81 o/d, 3.73 Moser rearend,
468 with KRE D-ports, Doug headers, 3" Exh.
  #8  
Old 02-25-2023, 10:35 AM
slowbird's Avatar
slowbird slowbird is offline
Ultimate Warrior
 
Join Date: Jan 2001
Location: Montgomery, IL
Posts: 10,638
Default

Quote:
Originally Posted by Dragncar View Post
Ken at the old PPR had a dyno. He made some runs and then made a change, crank trigger.
It was worth 7 HP.
That seems like a lot, wonder how much play he had in his dist.

  #9  
Old 02-25-2023, 05:49 PM
Scott Stoneburg's Avatar
Scott Stoneburg Scott Stoneburg is offline
Ultimate Warrior
 
Join Date: Sep 2007
Posts: 2,179
Default

Quote:
Originally Posted by Dragncar View Post
Ken at the old PPR had a dyno. He made some runs and then made a change, crank trigger.
It was worth 7 HP.
Not saying that he didn't see 7hp increase, but that had to be from just getting the timing where the motor liked it, not just from changing to a crank trigger. All your doing it switching from one trigger mechanism to another.

  #10  
Old 02-26-2023, 12:42 AM
Jack Gifford's Avatar
Jack Gifford Jack Gifford is offline
formerly 'Pontiac Jack'
 
Join Date: Dec 2004
Location: Phelps, NY 14532
Posts: 10,176
Default

Quote:
Originally Posted by chuckies76ta View Post
... You take your distributor and lock it out. You adjust timing with the crank trigger sensor...
The position of the crank sensor determines just one aspect of timing. It requires appropriate electronics to provide advance functions. Don't forget to take the advance into account as you set rotor phasing.

__________________
Anybody else on this planet campaign a M/T hemi Pontiac for eleven seasons?
... or has built a record breaking DOHC hemi four cylinder Pontiac?
... or has driven a couple laps of Nuerburgring with Tri-Power Pontiac power?(back in 1967)
  #11  
Old 02-26-2023, 10:06 AM
chuckies76ta's Avatar
chuckies76ta chuckies76ta is offline
Ultimate Warrior
 
Join Date: Jun 2004
Location: Canada
Posts: 3,078
Default

Quote:
Originally Posted by Jack Gifford View Post
The position of the crank sensor determines just one aspect of timing. It requires appropriate electronics to provide advance functions. Don't forget to take the advance into account as you set rotor phasing.

Yes that true. I was just generalizing and trying to help the guy out and get him started in the right direction since he posted on the 14th and no one offered up any help. I use a 6AL-2 programmable box to tailor my timing. This guy explains how to set timing with the 6al-2 box. I scratched my head when I first was setting mine up. I finally figured out you have to subtract timing on the curve.
https://www.youtube.com/watch?v=FvLkCpq8y7o


Thanks for the info Jack.

__________________
68 Firebird. IA2 block, 505 cu in, E-head, Solid roller 3650 weight. Reid TH400 4:11 gear. 29" slick.
Best so far 10.12@133 mph. 1.43 60 ft.
76 Trans am, TKX .81 o/d, 3.73 Moser rearend,
468 with KRE D-ports, Doug headers, 3" Exh.

Last edited by chuckies76ta; 02-26-2023 at 10:15 AM.
  #12  
Old 02-27-2023, 04:03 PM
Dragncar Dragncar is offline
Ultimate Warrior
 
Join Date: Mar 2004
Location: Humbolt County California
Posts: 8,283
Default

Quote:
Originally Posted by slowbird View Post
That seems like a lot, wonder how much play he had in his dist.
Seemed like a lot to me also. I would think 3-4 HP but I doubt Ken would use a sloppy distributor.

  #13  
Old 02-27-2023, 04:27 PM
Dragncar Dragncar is offline
Ultimate Warrior
 
Join Date: Mar 2004
Location: Humbolt County California
Posts: 8,283
Default

Quote:
Originally Posted by Scott Stoneburg View Post
Not saying that he didn't see 7hp increase, but that had to be from just getting the timing where the motor liked it, not just from changing to a crank trigger. All your doing it switching from one trigger mechanism to another.
It was the same total advance. The way I understand it is your timing is much more stable and accurate with a crank trigger and that is where any increase come from.
I have never run one but I do have a MSD crank trigger and a BOP front-sideways distributor setup given to me by a high level bracket racer.
He took it all off and went to a nice aftermarket HEI setup. Much more simple, works just fine and he did not see a ET difference. 5-7 horsepower it would be hard to see anyway.
So I do not know if I will ever use the stuff either just bracket racing. I did my own test at the track years ago. Used PMD distributors. One with points triggering my 7-AL and another using a distributor with a Petronix setup and their coil. I used the same exact advance springs in both.
Ran the same ET-MPH with both so I sent the Petronix stuff back. Run points to this day. I tested the points (cast iron) distributor on a Sun machine once, spun it up to the max, kinda scary standing next to it. But it never had one hiccup.
Run that distributor ever since and have not had a ignition problem in my life at the track. The points contacts do not wear with MSD. Just keep a eye on dwell and I guess the spring could wear at some point. I run the 8000RPM points and I am never going to build a engine that can make them bounce anyway.

  #14  
Old 02-28-2023, 09:29 AM
grandville455's Avatar
grandville455 grandville455 is offline
Ultimate Warrior
 
Join Date: Jan 2003
Location: Chippewa Falls,WI 54729
Posts: 10,836
Default

Hey guys lets not mess this thread up please! I get the discussion part but maybe start a new thread so this doesn't end up locked! lol

__________________
Darby
74 Grandville 2Dr 455 c.i 4550#
2011 1.60 60 ft,7.33@94.55-11.502@117.74


2017, 74 firebird -3600 lbs (all bests) 1.33 60 ft, 6.314@108.39 9.950@134.32
M/T 275/60 ET SS Drag Radial

2023,(Pontiac 505) 1.27 60 ft, 5.97@112.86, 9.48@139.31.... 275/60 Radial Pro's
  #15  
Old 02-28-2023, 09:39 AM
chuckies76ta's Avatar
chuckies76ta chuckies76ta is offline
Ultimate Warrior
 
Join Date: Jun 2004
Location: Canada
Posts: 3,078
Default

My apologies Darby..

__________________
68 Firebird. IA2 block, 505 cu in, E-head, Solid roller 3650 weight. Reid TH400 4:11 gear. 29" slick.
Best so far 10.12@133 mph. 1.43 60 ft.
76 Trans am, TKX .81 o/d, 3.73 Moser rearend,
468 with KRE D-ports, Doug headers, 3" Exh.
  #16  
Old 03-01-2023, 10:38 AM
grandville455's Avatar
grandville455 grandville455 is offline
Ultimate Warrior
 
Join Date: Jan 2003
Location: Chippewa Falls,WI 54729
Posts: 10,836
Default

Quote:
Originally Posted by chuckies76ta View Post
My apologies Darby..
Not your fault, i just was starting to see where it was going lol

__________________
Darby
74 Grandville 2Dr 455 c.i 4550#
2011 1.60 60 ft,7.33@94.55-11.502@117.74


2017, 74 firebird -3600 lbs (all bests) 1.33 60 ft, 6.314@108.39 9.950@134.32
M/T 275/60 ET SS Drag Radial

2023,(Pontiac 505) 1.27 60 ft, 5.97@112.86, 9.48@139.31.... 275/60 Radial Pro's
The Following User Says Thank You to grandville455 For This Useful Post:
Reply

Thread Tools
Display Modes

Posting Rules
You may not post new threads
You may not 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

Forum Jump


All times are GMT -4. The time now is 01:29 PM.

 

About Us

The PY Online Forums is the largest online gathering of Pontiac enthusiasts anywhere in the world. Founded in 1991, it was also the first online forum for people to gather and talk about their Pontiacs. Since then, it has become the mecca of Pontiac technical data and knowledge that no other place can surpass.

 




Copyright © 2017