Proportioning valve bypass, to stalling converter at the track.
08-20-2002, 02:08 AM
#1
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Thread Starter
Join Date: Apr 2002
Location: Eau Claire, WI, USA
Posts: 20
Proportioning valve bypass, to stalling converter at the track.
Hello,
I am curious about bypassing the proportioning valve to the rear brakes with a normally closed solenoid valve. This will give me full rear brake pressure allowing me to stall up the converter, when I activate the solenoid with a momentary switch. Currently I can stall to about 2100 RPM in a 97 Camaro with a 2800 converter.
Anyone done this mod? If so where can I get the parts? I can deal with the wiring and the brake lines, but where can I find the solenoid valve that will work with an automotive brake system and work with 12 volts? Any ideas or information would be appreciated!
Courtney
I am curious about bypassing the proportioning valve to the rear brakes with a normally closed solenoid valve. This will give me full rear brake pressure allowing me to stall up the converter, when I activate the solenoid with a momentary switch. Currently I can stall to about 2100 RPM in a 97 Camaro with a 2800 converter.
Anyone done this mod? If so where can I get the parts? I can deal with the wiring and the brake lines, but where can I find the solenoid valve that will work with an automotive brake system and work with 12 volts? Any ideas or information would be appreciated!
Courtney
08-20-2002, 03:30 PM
#2
Registered User
Join Date: Jul 1999
Location: Six Mile, SC, USA
Posts: 2,054
Try these guys:
www.ronscustomauto.com
they did an article in GMHTP and I talked to them at length. I am going to try my TC out first before doing this mod but it sounds alot better than a Tbrake, this is a buick turbo trick that has been out for a while.
let me know if it works.
------------------
Old Setup was:
94 Z28 A4(3.73)
LT4 H/I/HOT cam
1.69/12.27@108
www.ronscustomauto.com
they did an article in GMHTP and I talked to them at length. I am going to try my TC out first before doing this mod but it sounds alot better than a Tbrake, this is a buick turbo trick that has been out for a while.
let me know if it works.
------------------
Old Setup was:
94 Z28 A4(3.73)
LT4 H/I/HOT cam
1.69/12.27@108
08-20-2002, 07:47 PM
#3
Registered User
Join Date: Dec 1969
Location: Pacific North West
Posts: 1,431
Biggest problem would be the ABS system. But I guess if you dump it(the ABS) you should be fine
------------------
Ellis
Team Captain
Team North West F-Body
www.teamnwfbody.org
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Ellis
Team Captain
Team North West F-Body
www.teamnwfbody.org
08-20-2002, 08:28 PM
#4
Registered User
Join Date: Mar 2000
Location: 51°N 114°W, 3500' elevation
Posts: 2,037
Vehicle brakes will not hold a car to the converter's full stall. They just can't hold back the torque put against them. The only way you can go to full stall is with a transbrake. By locking 2 gears at once there's no way for power to go out of the tranny.
------------------
Stephen's racing page
or check out the race car
87 IROC SuperPro race car
461 big block
Best ET on a time slip: 11.418
Best MPH on a time slip: 117.01
Best corrected ET: 11.051
Altitude corrected rear wheel HP: 468
Best 60 foot: 1.595
Member of the Calgary Drag Racing Association
------------------
Stephen's racing page
or check out the race car
87 IROC SuperPro race car
461 big block
Best ET on a time slip: 11.418
Best MPH on a time slip: 117.01
Best corrected ET: 11.051
Altitude corrected rear wheel HP: 468
Best 60 foot: 1.595
Member of the Calgary Drag Racing Association
08-20-2002, 11:11 PM
#5
Registered User
Join Date: Dec 2001
Location: Hanover, MA
Posts: 177
Easy mod is to do away with the prop valve entirely and go with largest dia piston manual m/c you can find to fit, usually s10, and if rear drums get the larger wheel cyl's.
This set up holds great on line and you can usually stage at higher rpm's. bBut like what was just said, staging rpm's and stall speed will never equal on a footbrake car.
This set up holds great on line and you can usually stage at higher rpm's. bBut like what was just said, staging rpm's and stall speed will never equal on a footbrake car.
08-22-2002, 03:59 PM
#6
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Thread Starter
Join Date: Apr 2002
Location: Eau Claire, WI, USA
Posts: 20
<font face="Verdana, Arial" size="2">Originally posted by Shon Herron:
Try these guys:
www.ronscustomauto.com
they did an article in GMHTP and I talked to them at length. I am going to try my TC out first before doing this mod but it sounds alot better than a Tbrake, this is a buick turbo trick that has been out for a while.
let me know if it works.
</font>
Try these guys:
www.ronscustomauto.com
they did an article in GMHTP and I talked to them at length. I am going to try my TC out first before doing this mod but it sounds alot better than a Tbrake, this is a buick turbo trick that has been out for a while.
let me know if it works.
</font>
Yes,
That is the same article I saw. I think it would be a good mod. I will try it. Thanks for the reply.
Courtney
08-22-2002, 04:04 PM
#7
Registered User
Thread Starter
Join Date: Apr 2002
Location: Eau Claire, WI, USA
Posts: 20
<font face="Verdana, Arial" size="2">Originally posted by OneFlyn95z28:
Biggest problem would be the ABS system. But I guess if you dump it(the ABS) you should be fine
</font>
Biggest problem would be the ABS system. But I guess if you dump it(the ABS) you should be fine
</font>
Courtney
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