Here’s more questions I have about rules for FB that involve a trans brake, 2 step or Launch control.

If you have a Transbrake in the car and you are FB what are the rules?

If you have a 2 step and FB what are the rules?

Can you have a button or switch on the brake pedal to activate a Launch wire in Digital control when in FB?

Ours has just gone back to foot brake. You can not use a 2 step in any way unless you are racing a stick car. No buttons or switches of any kind can be used launching the car.

quote:

Originally posted by CURTIS REED:
Ours has just gone back to foot brake. You can not use a 2 step in any way unless you are racing a stick car. No buttons or switches of any kind can be used launching the car.

As it should be. Just the opinion of a top bulb racer

quote:

Originally posted by Big Steve:

quote:

Originally posted by CURTIS REED:
Ours has just gone back to foot brake. You can not use a 2 step in any way unless you are racing a stick car. No buttons or switches of any kind can be used launching the car.

As it should be. Just the opinion of a top bulb racer

Steve, I agree. We just went back to No-E from No-Box. Now Div 4 is the only ones who are No-E I believe. Even Div 1 is now No-Box.

quote:

Originally posted by CURTIS REED:
Ours has just gone back to foot brake. You can not use a 2 step in any way unless you are racing a stick car. No buttons or switches of any kind can be used launching the car.

In FB, would you be allowed to have a switch on the brake pedal that indicates when the pedal is depressed or released as an input to an ignition control? It would not activate the transbrake and it would not limit the engine rpm like a 2-step rpm limiter when activated. It would have no control in launching the car.

496~850ish corrected dyno HP
3008 last time scaled
5.87-6.0x depending on track elevation etc.
~2500
PG/5600 Spragless converter

TB in car is ok, delay boxes must be removed if equipped.
No 2-step, not sure about if it's a stick car?

At a track or event that is pure footbrake you cannot use a 2 step for a launch RPM control, only exception I;ve seen is for a manual transmission car. Many cars have transbrakes in them, they just cannot be used in pure footbrake and some tracks,events don't allow a button on the steering wheel. Some have pro brakes that require activation of the solenoid to back up so you can have a button in the car, just not on the wheel.
A brake light switch, whether pure mechanical or hydraulically activated are legal

440 ci mopar, 550 hp?
3000 with driver
6.45 to 6.50
2000 rpm
To 727, 2.45 1st gear, 4.10 rear, 31 X 10.5w mt

1. 396 cid/ 375 hp
2. 3200 lbs (I think)
3. 7.50 1/8 mile
4. 750 rpm idle
5. TH400

Take care. Tom Worthington

I know of one footfeed racer that triggers the launch wire thru a switch on the brake pedal. He shifts on RPM. He’s not using the launch retard, just Uses the switch to indicate “launch” in the data log.
He runs several big footfeed events a year, far as I know his setup is 100% legal. He’s never been questioned, his grid is on the dash out in the open so it’s not like he tries to hide it.

quote:

Originally posted by markemark:

quote:

Originally posted by CURTIS REED:
Ours has just gone back to foot brake. You can not use a 2 step in any way unless you are racing a stick car. No buttons or switches of any kind can be used launching the car.

In FB, would you be allowed to have a switch on the brake pedal that indicates when the pedal is depressed or released as an input to an ignition control? It would not activate the transbrake and it would not limit the engine rpm like a 2-step rpm limiter when activated. It would have no control in launching the car.

I believe you would be legal by the rules but it could be argued as not by some. I have a wide open switch on my carb that I am going to use to trigger my data recorder instead of using rpm or driveshaft speed to trigger it so I don't see it as any different.

Data recorders are now legal in NHRA Pro class and they all need a trigger. I just bought one of the Digital Delay RPM / Time shift controllers so I can shift on time and I may trigger it with the W/O switch also instead of using rpm.

Curtis

If I were inclined to install all of this stuff I would just go top eliminator racing. And no one is policing it anyway, you just stick it in there and as long as no one complains go ahead......should make a person real proud.

quote:

Originally posted by markemark:
Here’s more questions I have about rules for FB that involve a trans brake, 2 step or Launch control.

If you have a Transbrake in the car and you are FB what are the rules?

If you have a 2 step and FB what are the rules?

Can you have a button or switch on the brake pedal to activate a Launch wire in Digital control when in FB?

Markemark, I underlined a couple sections of your question, because these are topics that 'may' be questionable to some FB racers, tracks, or sanctioning bodies.
While I am interested and curious about your experiment, I think the biggest challenge is going to be the wide variations in rules between tracks, "XHRA" divisions, and geographical regions. While you do use the expression "Footbrake", there has been some confusion for many years about the differences between "Bottom Bulb", "No-Electronics", "Sportsman", and FB. In it's purest form, Footbrake means just that - Staging, launching, and driving the car with your eyes, your two feet, your hands, (for shifting and steering only), and nothing else. No buttons, no "Driver Aids" such as 2-step, trans brake, line-loc, idle control solenoids, computer-controlled ignition or other electronic boxes, (unless factory installed), etc. The NHRA and IHRA have both muddied the water by having no single set of rules for all of their divisions. (And by periodically changing those rules about what is allowed in their bottom-bulb categories).
Some footbrake classes have evolved to the point where they do allow automated (electric or pneumatic) shifters and electronic shift controllers, some tracks or divisions allow RPM limiters at the start line, as long as you still leave with your feet. I guess my point is, it's kind of a big mess, and whatever deal you come up with, it may be able to be used widely, or perhaps find very limited acceptance. Some racers are hard-set on what they think Footbrake rules mean, others (like myself) don't care so much, and will run against whoever, doing our best and playing by whatever rules are in place that day. But please share info if/when you decide to make the new program public.

quote:

Originally posted by ferndaleflyer:
If I were inclined to install all of this stuff I would just go top eliminator racing. And no one is policing it anyway, you just stick it in there and as long as no one complains go ahead......should make a person real proud.

I am, very much so.

quote:

Originally posted by Dbl.O.Five:
[ 2019 05:41 AMHide Post1985 Ed Quay Camaro (pic in avatar)1. 582 1000hp2. 25203. 5.20’s 4. 4200-4500 depending on rollout and track 5. PG, but car will take a 400 or Lenco as well (was a former comp car)Rob Robertson

Rob: You must have a really loose converter or big 4 wheel drum brakes to hold 4500...?![/QUOTE]

It has four wheel Lamb disk brakes and an FTI 9" converter that is probably 6700 Stall.

1968 Dodge Dart

1. 502 cid/ 750+ hp
2. 3045 lbs with me in it.
3. 5.80 1/8 mile
4. 1000 rpm idle
5. Powerglide


I have my car set up for footbrake, no box, or box.

1. 352 cu. in., HP?
2. 3025 w/driver
3. 7.20's deep staged
4. leave at 1500-1600
5. PG starts in 1st

1. 358 CID approx 380 hp
2. 3100 lbs
3. 7.40 shallow to 7.50s deep staged what we have to do to cut a light.
4. We have a pretty loose converter stage up to 3600 rpm 4.56 gear.
5. Powerglide 1.76 gearset.

1. 511bbc 800hp
2. 2180 w/driver
3. 5.40s
4. 2700-3000. Convertor stall 6000
5. PG with 1.80 gears.

My car is setup for Box, No box, super gas and footbrake.

The issue with using a button on the pedal it is legal, as long as it doesn't activate a TB/2-step...in D4, but someone is going to "question" it all the time. Eventually you will be checked somewhere if someone see's it. If it is feasible with the grid, I would just setup a "toggle" switch you flip before you pre-stage to begin recording data. This way, there is never a question of it.

quote:

Originally posted by MadMax4040:
My car is setup for Box, No box, super gas and footbrake.

The issue with using a button on the pedal it is legal, as long as it doesn't activate a TB/2-step...in D4, but someone is going to "question" it all the time. Eventually you will be checked somewhere if someone see's it. If it is feasible with the grid, I would just setup a "toggle" switch you flip before you pre-stage to begin recording data. This way, there is never a question of it.

This is not about starting the Data Acquisition Record feature in Grid. This is about Arming and Starting the “Time From Launch Timer” (TFLT) at the exact moment the foot brake is released without having to manually activate this feature that I wrote about in my Grid for FB Tips tutorials. Nothing to turn ON, Always ON.

The Grid TFLT is what controls some programmable functions during a run that is desired by racers. The starting time of this feature can be very important in FB racing mode depending on the programing being used.

If wanting to manually start the Data Acquisition Record feature in Grid, one only needs to wire a momentary push button with +12v and wire to any Step function and program appropriately.