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

How high can you footbrake your engine?

Thread Tools
 
Search this Thread
 
Old Jan 7, 2004 | 05:23 PM
  #1  
muggsyjack's Avatar
Thread Starter
Member
 
Joined: Feb 2002
Posts: 296
Likes: 1
From: Florida
Car: 1992 RS Camaro bracket car
Engine: 350
Transmission: TH-350
How high can you footbrake your engine?

How high can you footbrake your engine against torque converter/brakes? At what RPM does your wheels break loose?
Reply
Old Jan 7, 2004 | 06:35 PM
  #2  
WaOnFiRe's Avatar
Supreme Member
 
Joined: May 2002
Posts: 1,014
Likes: 3
From: Quebec, Canada
Car: 1988 Pontiac Firebird Formula 350
Engine: 5.7L
Transmission: Automatic 4 speeds
Axle/Gears: 2.77
Mine does it at 1800RPM...
Attached Thumbnails How high can you footbrake your engine?-468344_17_full.jpg  
Reply
Old Jan 7, 2004 | 06:35 PM
  #3  
WaOnFiRe's Avatar
Supreme Member
 
Joined: May 2002
Posts: 1,014
Likes: 3
From: Quebec, Canada
Car: 1988 Pontiac Firebird Formula 350
Engine: 5.7L
Transmission: Automatic 4 speeds
Axle/Gears: 2.77
I mean I begin to lose traction at 1800, not do a burnout like on my pic...
Reply
Old Jan 7, 2004 | 07:29 PM
  #4  
MdFormula350's Avatar
TGO Supporter
 
Joined: Nov 2001
Posts: 11,634
Likes: 3
From: Maryland; USA
never looked hard but i think it flirts with around 1,500 rpm, its not high at all, i need a torque converter.

Last edited by MdFormula350; Jan 7, 2004 at 07:34 PM.
Reply
Old Jan 7, 2004 | 07:44 PM
  #5  
1QWIKZ's Avatar
Member
 
Joined: Oct 2001
Posts: 383
Likes: 0
From: S.Jersey
Car: 88 Camaro
Engine: 355
Transmission: TH-350
2400 w/POS G.E.R. converter......
Reply
Old Jan 7, 2004 | 08:09 PM
  #6  
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
About 4000 rpm but my converter stalls on the transbrake at 5700.
Reply
Old Jan 7, 2004 | 08:12 PM
  #7  
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
That varies from engine to engine, car to car, tranny to tranny - combo to combo.

I can't foot-brake the Camaro above 2100, but with the park brake on first, I can get it to 2300. I can hold the '57 at 3000, foot brake and just the primaries. But the converter will stall to 3500 if I have the park brake on and open the secondaries. More cam and it probably won't stall that high (but, maybe it would...).
Reply
Old Jan 8, 2004 | 02:05 AM
  #8  
EvilCartman's Avatar
Supreme Member
iTrader: (1)
 
Joined: Apr 2000
Posts: 5,321
Likes: 4
From: Northern CA.
Car: '82 Z28
Engine: 350
Transmission: TH400 4,000 stall
Axle/Gears: Currie 9", 4.56 gears
I can hold mine at about 3000... any more than that the car moves or the wheels spin.
Reply
Old Jan 8, 2004 | 05:36 PM
  #9  
muggsyjack's Avatar
Thread Starter
Member
 
Joined: Feb 2002
Posts: 296
Likes: 1
From: Florida
Car: 1992 RS Camaro bracket car
Engine: 350
Transmission: TH-350
I was curious.....I can hold 2200 to 2300 RPM with foot brake and 3500 RPM with foot brake and emergency brake. Looks like I am going to need to do the proportioning valve trick.
Reply
Old Jan 8, 2004 | 08:32 PM
  #10  
mw66nova's Avatar
Supreme Member
20 Year Member
iTrader: (13)
 
Joined: Jun 2002
Posts: 13,576
Likes: 30
From: Harford County, MD
Car: camaro sportcoupe
Engine: 7.0L
Transmission: G-Force GF5R
Axle/Gears: Moser 9"
mine was stock and the wheels would spin at like 1400rpms...
Reply
Old Jan 9, 2004 | 12:01 AM
  #11  
25thmustang's Avatar
Supreme Member
 
Joined: May 2003
Posts: 2,839
Likes: 0
From: CT
Car: Mustang
Engine: Bolt Ons
Transmission: Stock
Axle/Gears: 3.73
6250, then it hits the limiter...

OOOOH in an auto!
Reply
Old Jan 9, 2004 | 07:14 PM
  #12  
IHI's Avatar
IHI
Supreme Member
iTrader: (1)
 
Joined: Apr 2002
Posts: 4,671
Likes: 1
From: Waterloo, Iowa
Car: 86 firebird with 98 firebird interi
Engine: pump gas 427sbc Dart Lil M 13.5:1
Transmission: Oldani TH400 w/ BTE 9" convertor
Axle/Gears: 31 spline Moser/full spool/4.11Rich
car @ 2600 truck at 4900 with old convertor 5000 with new convertor only t-brake it at 3600 though
Reply
Old Jan 10, 2004 | 12:54 AM
  #13  
Motor City Mike's Avatar
Senior Member
 
Joined: Jul 2003
Posts: 509
Likes: 0
From: Detroit, MI, USA
Car: '82 Trans Am
Engine: Blown 540 BBC
Transmission: TH475
Axle/Gears: Dana 60, 4.10 w/spool
About 2300 rpm, standing on the brakes. With my supercharged BB engine/tight torque converter/lots of traction combo, this thing wants to GO. I could never break the rear tires loose with the brakes on, unless I used the line lock and/or the rear tires are in water. It has so much low end torque, when cruising on the street, I just leave it in third gear all the time (manual valve body).
Reply
Old Jan 10, 2004 | 04:29 PM
  #14  
iroczguy's Avatar
Junior Member
 
Joined: Jan 2001
Posts: 29
Likes: 0
From: Flint,Mi USA
oh about 2800-2900 that all
Reply
Old Jan 10, 2004 | 07:47 PM
  #15  
JERRYWHO's Avatar
Supreme Member
 
Joined: Oct 1999
Posts: 1,259
Likes: 1
From: So-cal.
I have a Yank ss3600 converter it will go 3100 N/A and 4025 with a 200 shot.

Jerry
Reply
Related Topics
Thread
Thread Starter
Forum
Replies
Last Post
Azrael91966669
DIY PROM
25
Jun 20, 2017 04:04 AM
Spyder_TheGamer
Tech / General Engine
1
Dec 25, 2015 05:07 PM
E Rod
LTX and LSX
5
Aug 28, 2015 05:17 AM
bradleydeanuhl
DFI and ECM
4
Aug 12, 2015 11:48 AM




All times are GMT -5. The time now is 08:45 PM.