Pro Vs Full Trans Brake?

TonyNewberry7274 · 12-27-2007, 02:02 PM

I am looking to do some .400 tree racing (ss/sg) with a 3600 lb, big block, p/g, chevlle. BTE 1.80 straight cut 5500 stall 5:29 gear, 15/33.5 tire. I need to pick the cars reaction time up. Was wondering if anyone has some info on what I might pick up by going to a pro brake.

Dave Steltz · 12-27-2007, 02:04 PM

In my supergas car, I went from an ATI bracket brake to a Hipster and picked up about .030...you can also shim out the solenoid and get a little....

TonyNewberry7274 · 12-27-2007, 02:13 PM

With the hipster do you have to hold down the button to back up. And does anyone make one that you don't have to.

Dave Goob Cook · 12-27-2007, 02:22 PM

The difference for me between a Coan Standard and Pro brake was about .020.

Rich Biebel · 12-27-2007, 03:41 PM

Most pro treeT-brakes require the solinoid to be activated to backup and that includes the Hipster. ATI had an internal solinoid style valve body as well as an external solinoid style valve body and both were faster than the average bracket style brake and neither of those two needed the solinoid activated for reverse.

Adger Smith · 12-27-2007, 09:02 PM

If the brake change doesn't work put a deeper low gear in it. Make sure you have all the Rev passage dump holes sized right (large) & you have better (stiffer) rev piston springs.
Do you do your own transmisssion work?

TonyNewberry7274 · 12-28-2007, 10:24 AM

No, but I have a friend that does. I run a 28.0 front tire, I was told to put a smaller front tire and change the brake and that would pick me up a lot. I have the car set to run super-pro. I have also been told you can't set the car up to run both, but I don't see why.

TS310C · 12-28-2007, 11:27 AM

Sure you can. That is what they make delay boxes for. Set the car up for a pro tree and add delay when you run a full tree.

There are several things you can do for a quicker reacting car:
1. Pro Brake
2. Shorter front tires
3. Raise launch RPM
4. Change 4 link settings
5. engine location
6. Stiffer side wall in your slicks
7. Practice!

Dave Steltz · 12-28-2007, 12:02 PM

Tony, just cause I'm curious....
How much delay are you running in you car now on a full tree ?

Are you gonna run some local races on the .400 tree or divisional/national events ?
Reason I ask about what events, is, here in the east its really a .370 tree, not sure how to explain that, but the tree was sped up for the pro's to keep them from going red, and back here it rolled over to the divisional events also...So even us guys who were hitting the .400 tree ok had to do some work to hit the .370 tree in light SG cars...and you say (ss/sg) keep in mind the Super Street tree is .500...

Also is the front tied down ?

Adger Smith · 12-28-2007, 01:51 PM

Take note of what everyone has said & remember converter selection has quite a bit to do with reaction time. You usually have to work with your combination. It's a package deal.

12-27-2007, 02:02 PM	#1
TonyNewberry7274 Junior Member Join Date: Sep 2007 Location: Weiner Arkansas Posts: 7 Likes: 0 Liked 0 Times in 0 Posts	Pro Vs Full Trans Brake? I am looking to do some .400 tree racing (ss/sg) with a 3600 lb, big block, p/g, chevlle. BTE 1.80 straight cut 5500 stall 5:29 gear, 15/33.5 tire. I need to pick the cars reaction time up. Was wondering if anyone has some info on what I might pick up by going to a pro brake.

12-27-2007, 02:04 PM	#2
Dave Steltz Member Join Date: Nov 2003 Posts: 323 Likes: 0 Liked 0 Times in 0 Posts	Re: Pro Vs Full Trans Brake? In my supergas car, I went from an ATI bracket brake to a Hipster and picked up about .030...you can also shim out the solenoid and get a little.... __________________ Dave Steltz 135G SG/SP/SST BIAECH Racing Team

12-27-2007, 02:13 PM	#3
TonyNewberry7274 Junior Member Join Date: Sep 2007 Location: Weiner Arkansas Posts: 7 Likes: 0 Liked 0 Times in 0 Posts	Re: Pro Vs Full Trans Brake? With the hipster do you have to hold down the button to back up. And does anyone make one that you don't have to.

12-27-2007, 02:22 PM	#4
Dave Goob Cook Member Join Date: Dec 2006 Location: Indy Posts: 422 Likes: 0 Liked 0 Times in 0 Posts	Re: Pro Vs Full Trans Brake? The difference for me between a Coan Standard and Pro brake was about .020.

12-27-2007, 03:41 PM	#5
Rich Biebel VIP Member Join Date: Jun 2007 Location: Northern New Jersey suburbs Posts: 2,314 Likes: 25 Liked 544 Times in 213 Posts	Re: Pro Vs Full Trans Brake? Most pro treeT-brakes require the solinoid to be activated to backup and that includes the Hipster. ATI had an internal solinoid style valve body as well as an external solinoid style valve body and both were faster than the average bracket style brake and neither of those two needed the solinoid activated for reverse. __________________ Rich Biebel S/C 1479 Stock 147R

12-27-2007, 09:02 PM	#6
Adger Smith VIP Member Join Date: Dec 2001 Location: Texarkana Ark/TX Posts: 2,446 Likes: 575 Liked 880 Times in 311 Posts	Re: Pro Vs Full Trans Brake? If the brake change doesn't work put a deeper low gear in it. Make sure you have all the Rev passage dump holes sized right (large) & you have better (stiffer) rev piston springs. Do you do your own transmisssion work? __________________ Adger Smith (Former SS)

12-28-2007, 10:24 AM	#7
TonyNewberry7274 Junior Member Join Date: Sep 2007 Location: Weiner Arkansas Posts: 7 Likes: 0 Liked 0 Times in 0 Posts	Re: Pro Vs Full Trans Brake? No, but I have a friend that does. I run a 28.0 front tire, I was told to put a smaller front tire and change the brake and that would pick me up a lot. I have the car set to run super-pro. I have also been told you can't set the car up to run both, but I don't see why.

12-28-2007, 11:27 AM	#8
TS310C Member Join Date: Sep 2003 Location: Morton, IL Posts: 323 Likes: 0 Liked 0 Times in 0 Posts	Re: Pro Vs Full Trans Brake? Sure you can. That is what they make delay boxes for. Set the car up for a pro tree and add delay when you run a full tree. There are several things you can do for a quicker reacting car: 1. Pro Brake 2. Shorter front tires 3. Raise launch RPM 4. Change 4 link settings 5. engine location 6. Stiffer side wall in your slicks 7. Practice!

12-28-2007, 12:02 PM	#9
Dave Steltz Member Join Date: Nov 2003 Posts: 323 Likes: 0 Liked 0 Times in 0 Posts	Re: Pro Vs Full Trans Brake? Tony, just cause I'm curious.... How much delay are you running in you car now on a full tree ? Are you gonna run some local races on the .400 tree or divisional/national events ? Reason I ask about what events, is, here in the east its really a .370 tree, not sure how to explain that, but the tree was sped up for the pro's to keep them from going red, and back here it rolled over to the divisional events also...So even us guys who were hitting the .400 tree ok had to do some work to hit the .370 tree in light SG cars...and you say (ss/sg) keep in mind the Super Street tree is .500... Also is the front tied down ? __________________ Dave Steltz 135G SG/SP/SST BIAECH Racing Team

12-28-2007, 01:51 PM	#10
Adger Smith VIP Member Join Date: Dec 2001 Location: Texarkana Ark/TX Posts: 2,446 Likes: 575 Liked 880 Times in 311 Posts	Re: Pro Vs Full Trans Brake? Take note of what everyone has said & remember converter selection has quite a bit to do with reaction time. You usually have to work with your combination. It's a package deal. __________________ Adger Smith (Former SS) Last edited by Adger Smith; 12-28-2007 at 01:52 PM. Reason: SP