Pretty sure they are talking about mounted on the brake pedal itself on the left side.
2-step for stock ignition systems
- Thread starter TurboBob
- Start date
Pretty sure they are talking about mounted on the brake pedal itself on the left side.
jasjamz
THS Racer
- Joined
- Sep 30, 2004
Not on the floor, on the left side of the Brake Pedal, Boost up with your right foot and position your left foot so that while holding the brakes, the left edge of your foot is on the Two Step button. At the edn of the run you right foot is in the brake, on the opposite side of the pedal away from the button. Dave... two words, More Coffee:tongue:
Hey Dave,
I have done the button in the brake pedal thing on a different car a few years ago (Impala SS with single turbo) it worked really well. Without some retard and cylinder cut you could not get any boost on the brakes without spinning the rears. With the cut and retard activated you could get 5 psi or so.
On non transbrake cars the setup of the unit depends on the turbo size and torque converter.
With a loose converter you can set the unit for full cylinder cut and less retard and use it to control launch RPMs. On launch you will get some additional flash stall from the converter.
With a tight converter or large turbo, you can set the unit for partial cylinder cut and more retard to create more heat in the exhaust. Then at launch you get rapid boost rise.
And, in addition to all this, trans brake or not. The alky guys will get extra protection from the upper RPM limit protecting them from the ECM's fuel cutoff limiter.
That switch is the best I have found for this application, I think it will be offered as an accessory.
Bob
I have done the button in the brake pedal thing on a different car a few years ago (Impala SS with single turbo) it worked really well. Without some retard and cylinder cut you could not get any boost on the brakes without spinning the rears. With the cut and retard activated you could get 5 psi or so.
On non transbrake cars the setup of the unit depends on the turbo size and torque converter.
With a loose converter you can set the unit for full cylinder cut and less retard and use it to control launch RPMs. On launch you will get some additional flash stall from the converter.
With a tight converter or large turbo, you can set the unit for partial cylinder cut and more retard to create more heat in the exhaust. Then at launch you get rapid boost rise.
And, in addition to all this, trans brake or not. The alky guys will get extra protection from the upper RPM limit protecting them from the ECM's fuel cutoff limiter.
That switch is the best I have found for this application, I think it will be offered as an accessory.
Bob
Interesting question.
Generally, this is the way 2-steps are. The purchaser gets to figure out how he wants to trigger the unit.
I'm wondering if the cruise control "SET" button could be used. It would make a cool, invisible installation. (It would still also work for the cruise control).
You can connect it to the brake light circuit, but the release would be a little slower. This might be fixable with a spring on the pedal or careful adjustment of the brakelight switch.
Bob
Generally, this is the way 2-steps are. The purchaser gets to figure out how he wants to trigger the unit.
I'm wondering if the cruise control "SET" button could be used. It would make a cool, invisible installation. (It would still also work for the cruise control).
You can connect it to the brake light circuit, but the release would be a little slower. This might be fixable with a spring on the pedal or careful adjustment of the brakelight switch.
Bob
I thought about the brake light circuit also, but concluded the release would be too slow. Even adjusting the switch. It would likely have to be adjusted too far down. Which would make cruise disengagement a little scary.
Cruise button's not a bad idea. I'm leaning toward a shifter mounted button or something similar.
The brake pedal mounted button isn't a terrible idea either if I understand it correctly.
Cruise button's not a bad idea. I'm leaning toward a shifter mounted button or something similar.
The brake pedal mounted button isn't a terrible idea either if I understand it correctly.
The brake pedal mounted button is very stealthy and un-intrusive. It works very well. I also considered putting a small button on the side of the console away from the driver. That way you could grab the console with your right hand and click the button when staged.
Steering wheel buttons are very 'old school'.....
Bob
Steering wheel buttons are very 'old school'.....
Bob
protracracing
Member
- Joined
- Oct 1, 2001
Bob where did you get the switch you are using on the pedal?
Thanks
Dennis
Thanks
Dennis
supramantrm
Member
- Joined
- Jul 19, 2003
ash tray
what about in the ash tray on one of the panels sold by TR ?Hey most of us are OLD!
what about in the ash tray on one of the panels sold by TR ?Hey most of us are OLD!
sent you a PM.
protracracing
Member
- Joined
- Oct 1, 2001
Got your PM
Thanks
Dennis
Thanks
Dennis
I also considered putting a small button on the side of the console away from the driver. That way you could grab the console with your right hand and click the button when staged.
Steering wheel buttons are very 'old school'.....
Bob
OMG you are gonna laugh when you see where I mounted my transbrake button a few weeks ago.
(screwed to the side of the console)In 20 years racing, I've NEVER mounted a button on my steering wheel.
I always just lay the cord over the console so it's easy to reach and out of the way.
When racing, I just drop the cord and grab the shifter after letting go of the button.
OMG you are gonna laugh when you see where I mounted my transbrake button a few weeks ago.
In 20 years racing, I've NEVER mounted a button on my steering wheel.
I always just lay the cord over the console so it's easy to reach and out of the way.
When racing, I just drop the cord and grab the shifter after letting go of the button.
What's wrong with mounting your button on the shifter, then no "dropping and grabbing".
It shouldn't be too difficult for me to mount a switch on mine.
Attachments
If you have a car that 60ft's hard enough, having your hand on the shifter when you launch is a no-no. (with a rev man VB)You may accidentally find yourself n 2nd gear sooner than you'd like.
Been there, done that... many years ago.
Line locks are for burnouts! I would NEVER hook mine to the rears.
The reason I can foot brake to very high boost levels (higher than the tires I use could ever handle BTW) is because the rear brakes are kept cold during the burnout, because of the line lock.
- Joined
- Feb 18, 2006
Nice cockpit Dave. A switch in your shifter would be sweet. I'm still thinking about what kind of switch to run. I like the brake pedal switch concept. Only problem my brake pedal literally moves about 1/4" then your through the windshield.
There is no travel but that may be a good thing. 
