Line-lock staging

[jsmcortina]

Does anyone stage with a line-lock in a manual?

A customer was asking about it the other day as he has some clutch drag and can roll the beams if not careful.

It seems like it would be quite tricky to manage manually on the line with too many buttons to press. ECU control would make it usable.

James

[tpsretard2]

We have a line lock, but it was a pain and not reliable under manual control.

We just use the hand brake.

However that said, he needs to sort the clutch out..

[nathaninwa]

Sometime I use my line lock. I have it on a push button on the shifter positioned for my index finger. I release the button when in slide the clutch out. So far all seems ok

[jsmcortina]

I added a new feature for this. The input button toggles the output on off. Coming out of launch mode turn the output off. For testing I used a relay in parallel with my line-lock switch.

James

[nathaninwa]

My tranny is apart getting a replacement mainshaft. I'll load this code and for sure try this out

[chips60bug]

So this line lock staging feature is meant to be tied to the 2 step limiter? Not the 3 step? I am trying to figure out how to wire a line lock into my system, to be used for burnouts only. I want to use the 3 step to limit burnout RPM to a safe zone(no tachometer). I can't hook the line lock directly to the switch that I have for my 3 step. It is meant for very low current, and was only ever intended to switch the MS to ground, and I can't change my switch as it is part of my steering wheel now.

I have plenty of inputs and outputs to play with on my 4 cylinder turbo car and have no problem wiring up a relay to an output of some sort. I guess I either need to know how to activate the LL staging feature, using the the 3 step. Or how to activate an output when the 3 step input is activated using the generic outputs page. Anybody have any thoughts on this?

Thanks for any help that you can offer!

MS3Pro, using the latest and greatest beta 1.4
I/O Extender is in play as well

[JAM]

Not sure i follow exactly the situation but have used 1 button for 2 functions in the past- burnout rev limiter and launch rev limiter. I simply used a second toggle switch with 3 positions that would swap the ground path from 1 input to another. The solenoid generally does not draw much current but if it's too much you can just run it through a relay - use button to ground one an input and relay simultaneously

[jsmcortina]

The feature is line-lock staging. I don't know about you, but I try not to do a burnout while staging.

James

[chips60bug]

I have a staging brake for staging. It's hydraulic, and hand pulled to activate. I don't want a solenoid to lock my brakes on the line. I want to control the brake pressure and my clutch to maintain a good preload on the transmission, without rolling through the beams.I guess I should have started a new topic rather than taint this one, sorry.

Here is my current situation.
I have a switch on my clutch pedal, this controls the 2 step. I roll up to the line, grab the staging brake and use it and the clutch to load the car and put it on the limiter. When I want to GO I release the clutch and let go of the brake with my hand, and away I go. This system works good for me. The clutch switch then allows for flat shift stuff as well.

Obviously I can't do a burnout with the clutch on the floor, so that switch is no good for that function. Neither is it wise to use my hydraulic staging brake for a burnout, since it is hooked to my driven wheels. The switch I have I good to handle 10mA, is that enough to trigger an input? I can't imagine that is enough to fire a relay though.

James, the very last section of my original question asked how to do this using there generic output settings. Is it possible to activate an output when an input, say whatever input my 3 step is connected to, is triggered. I would gladly do that. I just don't understand the process needed to activate it in the software. Does that make sense?

[aidandj]

Any reason you can't just have the normal rev limiter do burnout limiting?

[chips60bug]

I don't really need the car to retard timing to build boost while putting the crazy load that a burnout can on the engine. It will make plenty of boost the second I take my foot off the clutch.

No matter though. I have this issue solved.