Indy Evo, I know exactly how this thing works as I had an identical setup drawn up several years ago. You guys are bringing it to market, and I applaud you for that, but as has been stated, this is nothing new. Further, not every DIYer is a hack. Let's face it, every single professional out there was likely once a DIYer.

This piece comes into play on the shifts and that is why you have to release the button now before the 1-2 shift. The issue is deactivating the bleeder circuit. Obviously, you have to be able to deactivate the bleeder portion to prevent the clutch from being slipped on a shift. I personally didn't like the idea of having to hold a switch and release it after the launch but before the 1-2. I'm sure it's a simple enough thing to do on the current setup. But add in the push button launch and something more sophisticated has to be implemented. You would need a button to control when it is activated and then a second switch to control when the car launches.

Now, you could use an ECU output to control activation and a pushbutton to control the launch. Simple and elegant, but doesn't meet everybody's needs as it requires programmable outputs. You could also implement a simple latch circuit with an IC or two. Now something based of the clutch pedal switches... That could work out well for everybody and not require any active circuits. There are probably lots more ways to effectively deal with the issue and that's why I said it will be interesting to see how you guys implement "version 2."

David, I understand that most Evo guys don't race competitively. You could see that at any NHRA event over the last 4 years when the only car in SRWD was Easy Street. Looking at the rules, I don't think this is technically legal and it's merely something I would pass by NOPI/NHRA tech guys before I tried to run it.

I've been to a lot of national sport compact events. If it's one thing I've learned, if you are doing something you aren't suppose to be doing, or even something that's just pushing the envelope, you will get called out on it if you are winning.

For those not looking to race in national events then obviously it doesn't apply to them. The claim was made that this is NHRA legal for the sportsman classes and I doubt it is as a friend was looking at doing this a couple years back in SFWD and it wasn't legal then. The rules have just gotten more strict since. But I do not know for sure at the current time and thus would recommend contacting the sanctioning body before purchase.

 

Edited....

 

Vids of this in action please.

 

can we get some clarification on how it's actually used. Do you depress the button once or do you hold it while you launch, when do you let go?

 

You press the clutch down then push (hold) the button while you launch the car.
You release the button when you shift into second gear.
It's really simple,the purpose of the valve in cockpit is to regulate the pressure(slippage) when you let out the clutch.you have to adjust the (knob) to dial in the amount of slippage to get the perfect launch.

 

Still Excited about this.

 

gotcha, that's what I thought, thanks for the clarification.

 

Its kind of similar to the stockm restrictor pill in theory only its A - Fully adjustable and B only active when you are launching the car

 

I'd just have to remember to let go of the button

 

There is a lot of ways to set it up so you don't have press the buttton - e.g. with a relay or from the AEM etc etc

Although preessing the button is not such a big deal

 

Couldnt you wire it into the factory clutch switch like the factory 2 step uses?

 

that crossed my mind as well, it's quite possible but how would it know not to be active in every gear?

I have a remote low/high boost switch I can use on my steering wheel if I wanted to get fancy about it. I think holding the button in first gear will be fine after some practice

 

Yes my switch is mounted on the steering wheel left side,works perfectly there.

 

aghh i cant wait to see it and test it out. well have to line up LOL.

 

U2SLO, Anyway we can get some pics of how you mounted your button?