HOME FORUM RULES CONTACT
     
   
   

Go Back   CLASS RACER FORUM > Class Racer Forums > Stock and Super Stock Tech


Reply
 
Thread Tools Display Modes
Old 05-02-2013, 10:03 PM   #1
brent flynn
Senior Member
 
brent flynn's Avatar
 
Join Date: Apr 2011
Location: Middletown, IN
Posts: 593
Likes: 0
Liked 0 Times in 0 Posts
Default Strange Engineering Master Cylinder

Can anyone recommend what # Strange master cylinder, for me, to run? I cant remember if drum(4 corners) require a bigger bore or smaller bore, than disc fronts...
I have '68 Firebird, with 4 wheel drum... tired of the Orielly's junk thats on there now... Since i put it on, its never felt right...I know there is a Chrysler part, that compares to the Strange, but not sure what it is... THanks!
__________________
1968 Bird/TRW 455/Home ported 13's, '70 Qjet,Holley Street Dominator manifold, Comp Solid FT, 10.817/122.30/1.440
Workin' on E/SA combo 3119 E/SA

Last edited by brent flynn; 05-02-2013 at 10:19 PM.
brent flynn is offline   Reply With Quote
Old 05-02-2013, 11:24 PM   #2
Todd Hoven
VIP Member
 
Join Date: Jul 2007
Posts: 1,329
Likes: 876
Liked 720 Times in 151 Posts
Default Re: Strange Engineering Master Cylinder

With the 4 wheel drum brakes, use the stock 7/.8 master. Best holding and stopping power with that. In my opinion.
__________________
Todd Hoven 1035 Stock
Todd Hoven is offline   Reply With Quote
Old 05-03-2013, 07:00 AM   #3
brent flynn
Senior Member
 
brent flynn's Avatar
 
Join Date: Apr 2011
Location: Middletown, IN
Posts: 593
Likes: 0
Liked 0 Times in 0 Posts
Default Re: Strange Engineering Master Cylinder

7/8 bore? The problem im having, is, pedal is hard with no real feel, and it wont hold in burnout box, again... i thought i had that problem fixed, last year. Whole brake system is new... I have a strange on the '62, but dont know what model it is...it works great... Napa or Carquest might have a NEW cylinder...rebuilt ones , are junk...
__________________
1968 Bird/TRW 455/Home ported 13's, '70 Qjet,Holley Street Dominator manifold, Comp Solid FT, 10.817/122.30/1.440
Workin' on E/SA combo 3119 E/SA
brent flynn is offline   Reply With Quote
Old 05-03-2013, 07:46 AM   #4
rallye bob
Member
 
rallye bob's Avatar
 
Join Date: Sep 2006
Location: Genoa, Illinois
Posts: 488
Likes: 8
Liked 6 Times in 4 Posts
Default Re: Strange Engineering Master Cylinder

Quote:
Originally Posted by brent flynn View Post
I have '68 Firebird, with 4 wheel drum...
This may be the reason for this issue......
Quote:
Originally Posted by brent flynn View Post
The problem im having, is, pedal is hard with no real feel, and it wont hold in burnout box
rallye bob is offline   Reply With Quote
Old 05-03-2013, 09:00 AM   #5
kdanner
Member
 
kdanner's Avatar
 
Join Date: Nov 2003
Location: Austin, TX
Posts: 219
Likes: 47
Liked 34 Times in 14 Posts
Default Re: Strange Engineering Master Cylinder

That does sound like it may be an oversize master. Look on a site like rockauto.com where they have pictures of the part and give the bore size. As I recall a 93 Lebaron is a 7/8" of the sterotypical Mopar style dual cap master and a 95 Dakota is 15/16".
kdanner is offline   Reply With Quote
Old 05-03-2013, 09:33 AM   #6
Richard Grant
Member
 
Richard Grant's Avatar
 
Join Date: Jan 2002
Location: West Monroe, La.
Posts: 301
Likes: 9
Liked 13 Times in 7 Posts
Default Re: Strange Engineering Master Cylinder

Have somone pump the petal while you bleed the lines. It sounds like you may have an obstruction in a line. You should get a high pressure squirt at each wheel if everything is correct. A stock master should work fine with drum brakes. Have you replaced all the stock lines? For drum brakes 7/8's master should be the ticket. If you changed from power to manuel brakes then your problem is the petal ratio. Power brakes have a much lower petal ratio and you must redrill the petal and increase the ration for manuel brakes. It may also require relocating the master for a straight shot from the petal thru the rod to the master.
__________________
Richard Grant 4988 STK
Richard Grant is offline   Reply With Quote
Old 05-03-2013, 01:20 PM   #7
Tom Goldman
VIP Member
 
Tom Goldman's Avatar
 
Join Date: Jan 2003
Location: Allentown,PA
Posts: 2,433
Likes: 769
Liked 696 Times in 201 Posts
Default Re: Strange Engineering Master Cylinder

Richard's probably got the right answer.
Most power brake pedals have a hole that gives about a 4 to1 ratio.
If thats the case, just calculate the distance to get about 6 to1 and drill a new hole in the pedal.
Definatly 7/8" -15/16" for drum / drum system
__________________
Tom Goldman 1500 SG , 1506 STK
Tom Goldman is offline   Reply With Quote
Old 05-03-2013, 05:42 PM   #8
brent flynn
Senior Member
 
brent flynn's Avatar
 
Join Date: Apr 2011
Location: Middletown, IN
Posts: 593
Likes: 0
Liked 0 Times in 0 Posts
Default Re: Strange Engineering Master Cylinder

Richard, my car is factory manual brakes... all system is new...i didnt bother to check the piston size, when i installed the Master Cyl, about 1 1/2 yrs ago... ive since changed line locks, thinking that was the problem, but i believe its just the wrong master cyl. Or, its just a piece of junk. We used the Chrysler part, on my brother's 10.00 car, and it worked perfect. I just couldnt remember what car it came off of... All you have to do , is , notch the holes out , a bit, make a new pushrod, and you are in business....Ive bled brakes several times... doesnt help... BTW, the car drives like a Caddy, with the Global west stuff, adjustable Baer tie rods, and moroso springs... lifts straight, now. It used to twist on launch. 1.485 60fts , with bracket engine and 4.11 gears, bias slicks, 2400 footbrake...
__________________
1968 Bird/TRW 455/Home ported 13's, '70 Qjet,Holley Street Dominator manifold, Comp Solid FT, 10.817/122.30/1.440
Workin' on E/SA combo 3119 E/SA
brent flynn is offline   Reply With Quote
Old 05-04-2013, 09:20 AM   #9
Richard Grant
Member
 
Richard Grant's Avatar
 
Join Date: Jan 2002
Location: West Monroe, La.
Posts: 301
Likes: 9
Liked 13 Times in 7 Posts
Default Re: Strange Engineering Master Cylinder

I would install a brake pressure guage on the front brakes. If you do you will love it when doing a burnout. You can pump the brakes to a set level each time. I usually set mine at 900 for my burnout.
You are running factory steel lines? AN lines do not work well for brakes. You can the brakes pressure guage to determine if the backs are ok also. You should get about 5 to 6 hundred pounds on the first stab if everything is correct.
No one that I know of has had a problem with the factory master when staying with drum brakes. Make sure that your master is not bigger than 7/8's. If it is that could be your problem. You may have chosen a master that was designed for disk brakes if you don't know the size or application.
__________________
Richard Grant 4988 STK
Richard Grant is offline   Reply With Quote
Old 05-04-2013, 12:24 PM   #10
brent flynn
Senior Member
 
brent flynn's Avatar
 
Join Date: Apr 2011
Location: Middletown, IN
Posts: 593
Likes: 0
Liked 0 Times in 0 Posts
Default Re: Strange Engineering Master Cylinder

Quote:
Originally Posted by Richard Grant View Post
I would install a brake pressure guage on the front brakes. If you do you will love it when doing a burnout. You can pump the brakes to a set level each time. I usually set mine at 900 for my burnout.
You are running factory steel lines? AN lines do not work well for brakes. You can the brakes pressure guage to determine if the backs are ok also. You should get about 5 to 6 hundred pounds on the first stab if everything is correct.
No one that I know of has had a problem with the factory master when staying with drum brakes. Make sure that your master is not bigger than 7/8's. If it is that could be your problem. You may have chosen a master that was designed for disk brakes if you don't know the size or application.
Yeah, I have all steel lines, and new rubber lines... I will pull master cyl, and measure it... Maybe, i should go to Napa, for a brand new one? (If this one checks out too big, or otherwise.) Im gonna put a brake pressure guage on the car...a good friend of mine, is giving me one. My Dad, had a '68 Bird(back halved) with 14.5/32's and never had a prob doin burnouts, and it had factory master cyl, was also manual brake car...
__________________
1968 Bird/TRW 455/Home ported 13's, '70 Qjet,Holley Street Dominator manifold, Comp Solid FT, 10.817/122.30/1.440
Workin' on E/SA combo 3119 E/SA
brent flynn is offline   Reply With Quote
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 06:11 AM.


Powered by vBulletin® Version 3.8.11
Copyright ©2000 - 2024, vBulletin Solutions Inc.
Copyright © Class Racer.com. All Rights Reserved. Designated trademarks and brands are the property of their respective owners.