Dknapp10 said:
if you want to use all 4 brakes that would be called foot braking just use the pedal. the whole point of a line lock is to lock the fronts with no backs being used to aid in holding the car in the water box.
Need Some Feedback on Line Lock/Roll or Stage Control
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if you want to use all 4 brakes that would be called foot braking just use the pedal. the whole point of a line lock is to lock the fronts with no backs being used to aid in holding the car in the water box.
Yes I am aware of what a line lock is SUPPOSED to be and normally used for. This is a car that I drive to the track and race. Due to the class times regulations I will be running with cars cutting good lights on a button. The reputable people that I have talked to do not recommend putting a transbrake in a 3100LB car with a 700r. Which brings me to this idea. I am only asking for feedback concerning on how to make this work. I am not asking you what you would do. I do not plan on making the car slower to run other classes and I do not want to to replace the transmission. Thank You.
You and everyone that has put one in has tried to do the same thing you are thinking of doing. I won't work. You are putting a different trans in so just put a trans brake in a th350 or a glide and go from their.
I accept it completely, and I appreciate the advice given. I am trying to find an in expensive way to run something similar to a transbrake and this seems to be the most common way and it sounds like it is a better suite for a street car anyways. With all do respect I have no care in the world with what anyone on here does with their car or prefers. I am simply trying to find an alternative to a transbrake; something that allows me to have my gas pedal to the floor and launch with a button at any rpms. Apologies for any confusion.lilbowtie said:
Honestly the best way to do that without a transbrake is with an aftermarket ignition system. I have an MSD digital 6 and I can set any rpm I want and once I engage it (simple 12v input) the MSD cuts my ignition at that RPM and varies which cylinder it drops so as not to load up the fuel and my foot can be WOT and the engine just lugs at that set RPM until I release the 12v and then rockets back to full power and launches. Depending on your class that is not always allowed, but works great. I have also seen tracks that outlaw using line lock at the line and only legal for burnouts, so verify rules before you invest in whichever route you go. Good luck.
You asked for feedback and you got it. The general consensus from reading the feedback is that it will not work. And that's not even considering my earlier post about my experience with exactly what you are trying to do.
You obviously have your mind made up so the next post on this topic should be you letting the rest of us know how it worked out for you.
Good luck with your project.
You obviously have your mind made up so the next post on this topic should be you letting the rest of us know how it worked out for you.
Good luck with your project.
CWPottenger said:
I am not familiar with the MSD Ignition system, or line lock obviously. I'll try to do my homework on it but feel to give some detail about it and or advice. I appreciate it. The class I was previously running is strictly footbrake. The class I will have to run now is button friendly unless it's a top bulb car. I've only heard of people running line locks for staging and launching. From what I understand (which is not a lot) They use some sort of 2 step limiter. One step set at low rpms that the breaks can hold at the lights and launch when the line lock button is released. Second step set however the driver wants, more than likely whatever the cam pulls to I would assume.
Chris Van said:
I apologize for anything I've said that is misleading, I'm trying, emphasis on trying to keep an open mind. I appreciate everyone trying to help, sharing experience, and giving advice. It really does help out a lot. I am far from making a decision on what I will do. I would like to find a cheaper alternative to launch my car on a button so that I can keep up with these guys on the tree. And I do not plan on changing my transmission. I love my overdrive as it helps keep my car more streetable and would like to maintain it.
Dknapp10 said:
What I described w/ the MSD rpm limits is a 2-step. they can be used in varying ways. One way is what you want where you engage by holding a button and put your foot on the pedals with throttle WOT. When you release button engine jumps to full power and since you are off idle and just below converters stall rating the car leaves the line quicker and more consistently. They can also be used to limit RPM's in the lower gears to keep from breaking the tires loose and not having to worry about feathering throttle off the line to reduce wheel hop. Generally speaking if you are only looking to hold the car @ the converter's stall rating the brakes should hold it. If your running skinnies then that will be tough to hold under any real torque.
The best advise I could give you is walk around in the pits and talk to the locals. I know at my local track most all of the racers are helpful and like most car guys love to talk tech and be helpful. Also if you don't have one yet get the NHRA rule book and your tracks local rules as they sometimes differ from NHRA class rules being either more or less restrictive.
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