Author Topic: FED & Transbrake  (Read 7369 times)

Offline opa1

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FED & Transbrake
« on: May 07, 2019, 02:08:01 PM »
Ok guys, I've had my FED for sale for a while. No one has bought it yet. So I'm thinking about taking it out and using the transbrake this time around. I have methanol stack fuel injection. What's the best way to approach this? Set the two step and floor it? I need to take out a bit of frustration! lol

Offline THE FRENCHTOWN FLYER

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Re: FED & Transbrake
« Reply #1 on: May 07, 2019, 02:29:11 PM »
Around here most of the fast guys in REDs w/ BBCs use a two-step set at around 4K RPM. I think I'd start there.

Offline tony1966

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Re: FED & Transbrake
« Reply #2 on: May 07, 2019, 04:51:04 PM »
I set the limiter to 3800 and floor it. Works so far. Btw, make sure to put you head back against the roll bar or headrest before letting go of the button.  ::)

Tony

Offline Supercat

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Re: FED & Transbrake
« Reply #3 on: May 07, 2019, 07:09:59 PM »
The use of a wheelie bar is advised at this time........
Have fun

Offline opa1

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Re: FED & Transbrake
« Reply #4 on: May 08, 2019, 09:16:06 AM »
I have a 6ft. wheelie bar. Just wasn't sure on the flooring of the throttle. Thanks for the tips.

Offline Paul New

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Re: FED & Transbrake
« Reply #5 on: May 08, 2019, 01:00:52 PM »
How much HP, what size of tires, and 2 step?

Offline AF150

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Re: FED & Transbrake
« Reply #6 on: May 08, 2019, 01:04:59 PM »
I liked to leave  between 3K & 4K rpm with or without a 2-step. Even when using the 2-step, very little throttle opening is required. You don't want the throttle blades wide open with no pump speed. It will be lean and may hesitate. Stage it above idle (about 3500 rpm) and let go the trans brake button and mat the gas at the same time. We got 1.08 -1.10 60 ft. times and reaction times around .030 sec. if I was paying attention.

Mike
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Offline wideopen231

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Re: FED & Transbrake
« Reply #7 on: May 08, 2019, 01:24:44 PM »
 Cpl opptions. One is as stated using two step at lower rpm and have it release when brake does if not running delay box. You can also go with SLE which I have and not sure about running or not. I Use to run my Nova as follows. I would stage Bring rpm up to about 4500 and on third bulb i would nail it as I released the button. Regardless what a lot of folks will tell you you can be consistent doing that way too.  That car was dead consistent even with nothing more than a transbrake and a driver staging ND changing gears,believe it or not thats what drivers do.LOL Now days they push brake and let go of button.
Relecting obama is like shooting right foot because it did not hurt enough when you shot left foot

Offline opa1

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Re: FED & Transbrake
« Reply #8 on: May 09, 2019, 04:37:58 AM »
How much HP, what size of tires, and 2 step?
Goodyear D2585/ 8-3/4 mopar 4:86/ Msd box. Not sure on HP. Currently running 5:60- rich and footbrake.

Offline mfracing

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Re: FED & Transbrake
« Reply #9 on: May 20, 2019, 12:33:35 PM »
I have the two step set in the mid 4000 range.  First bulb, I roll into the throttle to full.  Works every time.  Tried leaving on the floor, but the car doesn't like it.  Faster 60 ft times getting the wheel speed up.

Offline denverflatheader

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Re: FED & Transbrake
« Reply #10 on: May 21, 2019, 05:03:46 AM »
Hi Mark - have you looked out the window yet, you’d think we’re in the middle of Winter here.  Alan

Offline Curly1

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Re: FED & Transbrake
« Reply #11 on: May 22, 2019, 06:11:41 AM »
I would like to know how it runs leaving off transbrake.

Offline opa1

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Re: FED & Transbrake
« Reply #12 on: May 22, 2019, 07:00:51 PM »
I'll report if and when I get the chance to take it back out. :(

Offline gregm784

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Re: FED & Transbrake
« Reply #13 on: May 23, 2019, 09:45:01 AM »
Where your two step is, is directly related to where your converter stalls.  Everything I've read over the years, is max effectiveness is roughly 500 rpm under your stall rpm. 

Beyond that, you can tune your reaction times with where the two step is. 
Greg
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Offline George

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Re: FED & Transbrake
« Reply #14 on: May 23, 2019, 11:23:41 AM »
Where your two step is, is directly related to where your converter stalls.  Everything I've read over the years, is max effectiveness is roughly 500 rpm under your stall rpm. 

Beyond that, you can tune your reaction times with where the two step is.

Yep. Ran the FED with trans. brake. Foot on the floor, left at 5800. Convertor stalled at 6200. Shifted with rpm module and electric solenoid from 6600-7000 depending on track. Most of the tuning was with tire pressure and wheelie bar height.
« Last Edit: May 23, 2019, 11:27:39 AM by George »