Organized Drag Racing and Autocross Drag racing and autocross discussions and questions. Techniques, tips, suggestions, and "what will I run?" questions.

manual brakes

Thread Tools
 
Search this Thread
 
Old Apr 22, 2005 | 03:29 PM
  #1  
zdrag28's Avatar
Thread Starter
Member
 
Joined: Feb 2005
Posts: 130
Likes: 0
From: michigan
Car: 85 z28
Engine: 327
Transmission: th350
Axle/Gears: ford 9in 4:56 to 1
manual brakes

I am converting to manual brakes for room reasons
but want to know if they will have enough stopping power
at the track?
also going to use a s10 cylinder I have herd that there is no diff. in the manual or power mc's is that true?
Reply
Old Apr 22, 2005 | 07:55 PM
  #2  
AlkyIROC's Avatar
Moderator
25 Year Member
Liked
 
Joined: Jul 1999
Posts: 17,268
Likes: 170
From: 51°N 114°W, 3500'
Car: 87 IROC L98
Engine: 588 Alcohol BBC
Transmission: Powerglide
Axle/Gears: Ford 9"/31 spline spool/4.86
If you relocate the pushrod on the brake pedal like you're supposed to, you won't really notice any difference.

I've converted to manual brakes and if I hit the brakes hard enough, I can still make the first turnoff at the end of the 1/4 mile. I usually don't push them that much and coast down to the end.
Reply
Old Apr 23, 2005 | 01:50 PM
  #3  
mod313's Avatar
Member
 
Joined: Apr 2002
Posts: 322
Likes: 0
From: Hanover, MA
Car: Camaro
Engine: 305-150/254 combo
Transmission: TH350 or T200
Axle/Gears: Srange 12 bolt; 5.14 or 5.38
Also, you will need to switch to the S10 manual brake rear wheel cylinders. The stock Camaro cyl's are 3/4" dia vs the S10 manual's 7/8" piston. I would suggest you look at both of the 85 S10 master cyl's and use the one with the larger piston, you'll find it gives you better holding power if you stage really hard (3300-3500 rpm's, this is not the converter stall speed).
Reply
Old Apr 26, 2005 | 02:36 PM
  #4  
five7kid's Avatar
Moderator
25 Year Member
iTrader: (14)
 
Joined: Mar 2000
Posts: 43,187
Likes: 43
From: Littleton, CO USA
Car: 82 Berlinetta/57 Bel Air
Engine: L92/LQ4 (both w/4" stroke)
Transmission: 4L80E/4L80E
Axle/Gears: 12B-3.73/9"-3.89
I did a non-power front disk brake conversion on the '57 last year (3850 lbs going down the track). It gave me fits all last year, and cost me the race in the National Finals when the car crept in the beams when I staged for the finals. The troubles started with a cheap master cylinder and improper proportioning valve. I slowly improved things while the season progressed, but it still wasn't right in November at Pomona.

The calipers came off my '86 Camaro donor car. I got some of the "better" non-fade pads for it, and found they need some heat to hold properly. This spring I put in the cheapest pads I could find, and it's holding much better in the beams now.

Whatever you do, stay away from non-US parts. My original MC was of Chinese origin, and I'm lucky I didn't kill myself. I finally got one from Master Power Brakes, and it's worked great. Same with the prop/combination valve. I finally trust the brakes again.

I was turned on to MPB http://www.mpbrakes.com by a post on TGO - now that I think about it, I can't remember if it was on the Brake forum or racing forum, but I believe I ended up getting the same MC as the TGO member did for his manual brakes. But, at any rate, the guys on their Tech Help Line got me going down the right track. Wish I could justify their rear drum brake upgrade setup...

Last edited by five7kid; Apr 26, 2005 at 02:38 PM.
Reply
Related Topics
Thread
Thread Starter
Forum
Replies
Last Post
1992 Trans Am
History / Originality
27
May 10, 2023 07:19 PM
Terrell351
Engine/Drivetrain/Suspension Parts for Sale
5
Jun 13, 2021 01:13 PM
Vintageracer
Camaros for Sale
12
Jan 10, 2020 05:33 PM
kyleb24
Camaros for Sale
2
Aug 15, 2015 08:24 AM
1992 Trans Am
Engine/Drivetrain/Suspension Parts for Sale
1
Aug 8, 2015 08:16 PM




All times are GMT -5. The time now is 07:08 PM.