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#1
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I would like to know what racers think the best transbrakes are and why. I'm thinking about putting one in and would appreciate any help on selecting one. Thank's
------------------ Outlaw Pontiac Racers Association "For Those Who Live The Legend" www.outlawpontiacs.com JBP 416ci on Gasoline #16 Dports 10.8-1 Compression Weight - 3275 10.5 - 29.5 TIRE Best ET: 60ft=1.39 1/8 =6.49@104mph 1/4 =10.29 @ 129mph [This message has been edited by Craig Berkheimer (edited 10-19-2000).]
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Outlaw Pontiac Racers Association "For Those Who Live The Legend" www.outlawpontiacs.com |
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#2
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I think that the transbake only works when your in 1st gear, not 2nd or third. It's still a good idea to have a safety installed. ... Eric.
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Runner Up Q16 Norwalk 2013! |
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#3
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I am also thinking about going to a brake. I've been told by several fellow racers that I will need a delay box. I usually cut lights somewhere in the .5 teens (we run on a .500 full tree). I'd like a few opinions.
Thanks ------------------ Bill
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Bill 64 GTO, tube chassis w/606" IA tall deck, PG & a pro geared Fab 9". 2750 lbs. [email protected]/4, [email protected]/8, 1.1981-60-ft. 8/10/08
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#4
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Does anyone have a contact # or website for Hipster Transbrakes. Can Scott Esterle at Summit get them? Thanks in advance.
You know why they call it "PMS"? Because "Mad Cow Disease" was taken |
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#5
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Boy that was a while back! Since then I have re-built my own TH400 with a JW brake. I followed the instructions on the B&M trany kit and the JW tans brake. The trany works great and the Brake hits like Jack the Bear! I've had two seasons on it and it's still going strong. Have gone 9.89 in a 3900# GTO. ...Eric.
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Runner Up Q16 Norwalk 2013! |
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#6
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When I originally put the converter in the car the engine would run to about 4600 WOT on the trans brake. This is a function of the torque the motor produces. As I made mods to the motor the stall number has gone up to it's current 5000 rpm. Based on past calculations using tire circumference, rear gear ratio, finish line RPM and trap speed from the ET slip, I have estimated about 94 - 95% converter efficiency at the big end. Although my converter is from one of the "big" companies, TCI, it was a custom ordered deal. After a conversation with Butler he gave me numbers to ask for in my order from TCI for fin angles etc. Took about 4 weeks to get it if I remember. The brake will shock the tires harder but lot's of cars running a 10.5 slick are hooking up well with a brake. a 1.40 60ft isn't anything to sneeze at. Again, good adjustable shocks are a must in my opinion. It's also important to scale the car to determine corner weights and front to rear distribution. Usually I run about 10 pounds of air in my slicks and I have about 1/2 turn of preload in the upper paasenger side 4 link bar and I tighten up the rebound setting on the drivers side shock to get a straight launch.
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#7
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Well, I finally went for it and had a double throw-down TH400 race trans w/brake built to replace my slipping junkyard w/kit unit. Come to find out my trans case was cracked! (that 'splains the leak that keeps getting worse
You know why they call it "PMS"? Because "Mad Cow Disease" was taken [This message was edited by Guy Mazza on February 01, 2003 at 09:47 AM.] |
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#8
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I have a Trans-King Pro transbrake, but I have only had the car out three times. I have nothing to compare it to and I don't have it dialed in yet. It is supposedly very fast. The only downside is that you must activate the button to be in reverse. When the button in pushed it goes into reverse, no matter where the shifter is. This is kind of a nuisance as it makes it hard to back up and steer the car at the same time that you keep the transbrake switch depressed.
------------------ Jim |
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#9
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I run a Select Performance brake too, and don't have to push a button for reverse, an will only work if I'm in first gear, don't have to worry about accidentally hitting the button. Mine most be the older one. The thing has work great, it's actually the same one ATI sells, they copy Selects Brake. The
ballooning problem happens when your going through the traps, and throw it into nutual. That's a No No! I run a Coan convertor, and agree about the other company's using off the shelf , as close as they can get convertors, not saying their bad companys, but if you say street, your in trouble. Craig, my opinion, you won't pick up anything by going to a trans brake, but better reaction times.The only thing that will help you is more ponys.What happens lots of times with a brake it will un-load the tires. unless your making the power to provent that from happening. The trans brake is made to shock the chassis, on a car that doesn't want to lift the front end allot, and carrier the wheels up for say 30-40', the front end drops to quickly, and un-loads the rear tires. Thats when you'll get un-consistent 60's, won't be much. Of course I don't know how good your car works. But it sounds like it pretty much have it dial in for the hp your making.
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#10
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Thanks for the help guys. Bracket Racer, what are your 60ft with the brake and without it. What you discribed is what I'm lookin for!! That must be a killer ride.
------------------ Outlaw Pontiac Racers Association "For Those Who Live The Legend" www.outlawpontiacs.com JBP 416ci on Gasoline #16 Dports 10.8-1 Compression Weight - 3275 10.5 - 29.5 TIRE Best ET: 60ft=1.39 1/8 =6.49@104mph 1/4 =10.29 @ 129mph
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Outlaw Pontiac Racers Association "For Those Who Live The Legend" www.outlawpontiacs.com |
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#11
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Craig, I'm going to a Hipster brake for next season. The guys I have talked to say it is the most consistant releasing brake they have used. It also has a few features others don't have.
As far as having to push the button to go into reverse that has to do with if it is a protree brake or not. All protree brakes that I'm aware of you have to push the button to make the car go into reverse. With a standard brake all you do is put it in reverse. In my opinion you would be better off staying away from a protree brake since they release so fast, unless you are going protree racing or are going to a delay box. You will find it hard enough not to redlight for a while with a standard brake. It doesn't look like you are having a problem in the traction area and I doubt you will with a brake. You may hit the tires a little harder with the brake but not much harder than you already are. If you leave off of the top of the converter like BR does it actually hits the tire easier than if you were to leave at 3200 with the same 5000 stall converter. The reason is that by leaving at 3200 the converter will jump right to the stall of 5000 and shocks the drivetrain and tires harder. That's why a majority of the really fast cars (4 and low 5 sec. 1/8 mile cars) leave off of the top of the converter. All depends on how your car is set up. Some cars need to hit the tires hard to plant them. Others leave better not hitting them so hard. Just need to try different launch rpm's. The one thing to remember is to buy the best converter you can afford. I run a BTE 8" and believe it is the best converter for bracket racing. My 60' rarely vary more than .006 all day. The main thing you will gain is more consistant reaction times and ET's with a transbrake. Once you switch to a transbrake you will wonder how you ever raced without one. [This message has been edited by PROBRD (edited 10-23-2000).]
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455: 1/8th mile 6.52 @ 104 1/4 mile 10.43 @ 128 |
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#12
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I would like to know what racers think the best transbrakes are and why. I'm thinking about putting one in and would appreciate any help on selecting one. Thank's
------------------ Outlaw Pontiac Racers Association "For Those Who Live The Legend" www.outlawpontiacs.com JBP 416ci on Gasoline #16 Dports 10.8-1 Compression Weight - 3275 10.5 - 29.5 TIRE Best ET: 60ft=1.39 1/8 =6.49@104mph 1/4 =10.29 @ 129mph [This message has been edited by Craig Berkheimer (edited 10-19-2000).]
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Outlaw Pontiac Racers Association "For Those Who Live The Legend" www.outlawpontiacs.com |
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#13
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B.R. is right! Transbrakes are fun and cutting lights seems to get more consistant. My first transbrake was a TCI. Worked O.K., but I blew that trans (T400 ) in about 10 passes. Then we put in the "good" one, expensive as well, it's a Griner, I'm not sure about spelling, but the good trany shops will know about them. What I was told the difference is - alot of T-brakes are just modified valve bodies that were cast as original equipment- then redrilled and modified to be reverse w/t-brake. The good ones are billet assemblies that are designed and cut to be reverse w/t brake from the start. The size of the passages is important for fluid pressures, including the infamous "balloning" of the torque converter which has been known to wipe out thrust bearings. By starting over with the design (as in the billet ones) a lot of the problems have been solved. Make sure the rest of your drive train is rock solid, cause when it hits --POW-- you know it!! Bill Meyer
------------------ GT37
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GT37 3625lbs..Fastest bench seat, column shift, all steel,no power adders car at Norwalk 1.35 w/29.5x10.5x15 6.42 @ 109 10.09 @ 133 |
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#14
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My dad runs a 455 JBP E-Head Roller motor- 79T/A 3500lbs.-Turbo 350 A-1 converter-A-1 valve body-A-1 brake-10" slick-10 bolt rear 3.90 gears, moser axels,moser spool,C-clip elem.NPW cover W/ Truss system-Competition Eng.Slapper bars.Super strength u-joints drive shaft.
He runs 10.30s @130 all day no nitrous 1.41 60 ft..He launches at around 4500 rpm on the brake and shifts at 6600 rpm.This will be the 3rd year of racing without a problem we change the rear end gear lube every season & inspect. Marv Ripes at A-1 is a great guy to work with. I have a local machanic(Dukes Garage & Machine Columbus Oh.) build the trannies to his specs.A-1 Marv Ripes custom builds your converter so you will need to talk directly to him.We also use Crane ignition components their components are very easy on the crank & other engine components ,do to the way they fire the engine during staging & burn out.My dad is a large man 6'3"-345 lbs.so he test the strength of all of the components .He has been very happy with our setup and recomend A-1Mark.B ------------------ |
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#15
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Jegs has them in their catalog, Summet does not.
Bill
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Bill 64 GTO, tube chassis w/606" IA tall deck, PG & a pro geared Fab 9". 2750 lbs. [email protected]/4, [email protected]/8, 1.1981-60-ft. 8/10/08
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#16
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I have a Hipster brake in my T-400. When I had it installed I took it to a fellow Pontiac racer who owns and makes his living running a transmission shop. He has always run TCI brakes in his 9.80's GTO. When I picked it up from him he commented that the machine work and fit of the Hipster Brake was much better than the TCI's he had been running in his own transmissions. I don't know that it works any better than a TCI or not but I have been pleased with my Hipster for over three years now.
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#17
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Craig. I run a Select Performance pro tree brake in my glide. They are located in Valley Stream, NY. Ph # 1-888-55-SELECT. Thier brake also needs the button pushed while in reverse in order for the car to back up. It is a pain at first but you will get used to it. He also built my convertor. Gave him all the specs on car, engine parts, dyno sheets and he custom built it for me. I believe the price for the brake was around $275.00 (for a powerglide). The guy who did my trans is Tom Goldman. He is a Super Gas racer in the Allentown PA area and builds most all the local area racers transmissions. He also does rears and chassis work when he has time. I just started using the trans brake and delay box and think it is great. Hold the button, see yellow, let go of the button, put it to the floor and hold on.
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2007 Norwalk Quick 16 Winner 8.960 @152.24 8.96 dial http://www.youtube.com/watch?v=8HY_nJR9Aa0&NR=1 |
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#18
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Are there any mods to be made to the trany before you bolt in a brake? Besides the regular stuff like Hi Perf. clutches, sprags etc.
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Runner Up Q16 Norwalk 2013! |
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#19
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Don't put it on your steering wheel! It is too easy to have an accident with it. As to a safety circuit, there are controls in a delay box for that. I was paranoid about switch bounce in mine so I programmed a big delay to avoid the transbrake re-energizing for several seconds. The problem with that was that I would need to re-energize it now and then at the starting line and I would be stuck. I took the delay out, and no problems. Mine is mounted on a pedestal built off of my shift platform. The button is in the middle and the delay box is on the top. I used the large button. I also used a three step. One for burnout RPM, one for Stage RPM and one for the high RPM limit.
http://www.jimspontiac.homestead.com/Index.html
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#20
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Thanks BR. I guess you are the only transbrake user on the board. It seems that your recommendation is what I'm coming up with as well. I'm going to give Hipster a call next week.
Next question, Can anyone give me a basic or detailed description on how the tranbrake works. ------------------ Outlaw Pontiac Racers Association "For Those Who Live The Legend" www.outlawpontiacs.com JBP 416ci on Gasoline #16 Dports 10.8-1 Compression Weight - 3275 10.5 - 29.5 TIRE Best ET: 60ft=1.39 1/8 =6.49@104mph 1/4 =10.29 @ 129mph
__________________
Outlaw Pontiac Racers Association "For Those Who Live The Legend" www.outlawpontiacs.com |
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