#1  
Old 07-04-2021, 07:18 AM
grivera's Avatar
grivera grivera is offline
Ultimate Warrior
 
Join Date: Feb 2005
Location: Just south of Baltimore
Posts: 5,871
Default

This is an interesting system. At engine speed, is there ever any contact with the lifter guide plate and the lifter body?

__________________
Will Rivera

'69 Firebird, 400/461, 290 Eddy D-Ports, HR 230/236, 4l80E, 8.5 Rear, 3.55 gears
'69 LeMans Vert, XS 350, #47 heads, TH400, 10 Bolt 3.23 gears, work in progress
‘66 Lemans, 455, 310 KRE D-Ports, HR 236/245, TH400, GV OD, 12 bolt 3.73 gears - see it here:
https://youtu.be/RP_s1wJKm_Y?si=K0NZxoTyaGcj8Dcb
  #2  
Old 07-04-2021, 11:10 AM
GoatZillaRacing's Avatar
GoatZillaRacing GoatZillaRacing is offline
Chief Ponti-yacker
 
Join Date: Feb 2018
Posts: 571
Default

Quote:
Originally Posted by grivera View Post
This is an interesting system. At engine speed, is there ever any contact with the lifter guide plate and the lifter body?
No contact. The lifters ride squarely on the cam lobes. The plate simply prevents the lifter from rotating when and if it bleeds down due to the engine not running for a while.

__________________
Randy Repp
1964 GTO "GoatZilla"
1964 GTO "Injunuity" A/FX Nostalgia Super Stock
220" Rear Engine Pontiac Powered Dragster
https://www.facebook.com/PontiacSpeedShop/
https://www.facebook.com/GoatZillaRacing/
https://www.facebook.com/groups/RebuildExcitement/
https://www.facebook.com/Call1844RacersRV/
https://www.facebook.com/groups/INJUNWARS/
  #3  
Old 07-04-2021, 02:03 PM
67Fbird's Avatar
67Fbird 67Fbird is offline
Chief Ponti-yacker
 
Join Date: Mar 2021
Location: GA
Posts: 527
Default

will it clear over a megabrace? and or be capable of functioning due to the the megabrace is at the top of the lifter bore already (IIRC). I guess if needed the megabrace could be machined .060 on the top side so as to allow a below flush height to the lifter bore tops.

  #4  
Old 07-04-2021, 03:04 PM
GoatZillaRacing's Avatar
GoatZillaRacing GoatZillaRacing is offline
Chief Ponti-yacker
 
Join Date: Feb 2018
Posts: 571
Default

Quote:
Originally Posted by 67Fbird View Post
will it clear over a megabrace? and or be capable of functioning due to the the megabrace is at the top of the lifter bore already (IIRC). I guess if needed the megabrace could be machined .060 on the top side so as to allow a below flush height to the lifter bore tops.
If you use countersunk allen head bolts you should be fine. See attached
Attached Thumbnails
Click image for larger version

Name:	51KMTEK1q9L._AC_SL1000_.jpg
Views:	215
Size:	42.2 KB
ID:	569227  

__________________
Randy Repp
1964 GTO "GoatZilla"
1964 GTO "Injunuity" A/FX Nostalgia Super Stock
220" Rear Engine Pontiac Powered Dragster
https://www.facebook.com/PontiacSpeedShop/
https://www.facebook.com/GoatZillaRacing/
https://www.facebook.com/groups/RebuildExcitement/
https://www.facebook.com/Call1844RacersRV/
https://www.facebook.com/groups/INJUNWARS/
  #5  
Old 07-04-2021, 04:08 PM
Lee's Avatar
Lee Lee is offline
Ultimate Warrior
 
Join Date: Dec 1999
Location: Crosby, TX (East of Houston)/Texas/USA
Posts: 2,108
Default

Quote:
Originally Posted by GoatZillaRacing View Post
No contact. The lifters ride squarely on the cam lobes. The plate simply prevents the lifter from rotating when and if it bleeds down due to the engine not running for a while.
Or if somebody over-revs the motor, and the lifter leaves the lobe.

__________________
'73 T/A (sold). Low budget stock headed 8.3:1 455, 222/242 116lsa .443/.435 cam. FAST Sportsman EFI, 317rwhp/385rwtq on 87 octane. 13.12 @103.2, 1.91 60'.

'67 Firebird [sold], ; 11.27 @ 119.61, 7.167 @ 96.07, with UD 280/280 (108LSA/ 109 ICL)solid cam. [1.537, 7.233 @93.61, 11.46 @ 115.4 w/ old UD 288/296 108 hydraulic cam] Feb '05 HPP, home-ported "16" D-ports, dished pistons (pump gas only), 3.42 gears, 275/60 DR's, 750DP, T2, full exhaust
  #6  
Old 07-05-2021, 09:24 AM
grivera's Avatar
grivera grivera is offline
Ultimate Warrior
 
Join Date: Feb 2005
Location: Just south of Baltimore
Posts: 5,871
Default

Quote:
Originally Posted by GoatZillaRacing View Post
No contact. The lifters ride squarely on the cam lobes. The plate simply prevents the lifter from rotating when and if it bleeds down due to the engine not running for a while.

Is this system only effective for a given range of lift using the Sealed power lifters on your website? SPL-2148P

__________________
Will Rivera

'69 Firebird, 400/461, 290 Eddy D-Ports, HR 230/236, 4l80E, 8.5 Rear, 3.55 gears
'69 LeMans Vert, XS 350, #47 heads, TH400, 10 Bolt 3.23 gears, work in progress
‘66 Lemans, 455, 310 KRE D-Ports, HR 236/245, TH400, GV OD, 12 bolt 3.73 gears - see it here:
https://youtu.be/RP_s1wJKm_Y?si=K0NZxoTyaGcj8Dcb
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 01:42 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