Push Button Starter Button

[Mesa Mike]

I want to add a push button starter button. Seems the Honda S2000 is very popular. I'm not sure how to wire. I will have an ignition w/key. Therefore I think I should put the starter wiring from ign switch on the run post and then to one side of the starter button and the other side to the starter. Does it need a relay or other electrical parts between the button and the starter? To turn off the engine I will use the key?

[2FAST4U]

I have this engine start button from Cole Hersee. I wired the 'IGN ON' portion of the keyed switch to this push button switch. There are only two wires on the push button switch so it's easy to wire

http://www.partdeal.com/cole-hersee-spst-weatherproof-push-button-start-switch-w-black-start-button-90047-01.html

My dash
http://i23.photobucket.com/albums/b373/GT40_Bill/IMG_2315_zpshe8ffivj.jpg (http://s23.photobucket.com/user/GT40_Bill/media/IMG_2315_zpshe8ffivj.jpg.html)

[fastzrex]

Here is another 'push to start' option from Watson Streetworks. Have used their switches on a couple previous builds, works reliably. They now have an option for a 'proximity' key fob for security. I haven't used that product. Link below:

http://www.watsons-streetworks.com/ignition/ignition-systems/hot-dot-all-in-one-ignition-switch

[wareaglescott]

Jazzman is installing the Watson street works switch with the proximity fob. Check out his build thread.

[DaleG]

Looks like you can just replace your keyed switch with a streetworks push button; and use the same hole in the dash.

[Papa]

I was looking at this: https://www.amazon.com/dp/B00K5ZS5WU/ref=wl_it_dp_o_pC_S_ttl?_encoding=UTF8&colid=TU1R4N1KFE6A&coliid=I3SAOS9AXFNOKT

[Mesa Mike]

Thanks everyone. I want to keep is simple and not so pricy. Think I'll just go with a Honda s S2000 and wire as I outlined above.

[CraigS]

I hope someone w/ direct knowledge of the honda button will respond. I am concerned that on a honda it is used to control a relay or something solid state and may not have the capacity to operate a solenoid.

[jharris]

Mike,

This blog post will show you how to wire the Honda S2000 button with our Infinitybox system.

http://infinitybox.com/wiring/s2000/

You can follow the wiring details to wire in a relay to engage the starter solenoid if you're not using our system.

Jay

[karlos]

I use to own an S2000 and still have my factory service manual. I took a quick look at the wiring diagram and see that Honda utilizes a relay between the start button and the starter solenoid. At work now, but will be happy to scan and post the diagram later today if it would help.

[edwardb]

Google "Honda S2000 pushbutton start" and you'll get a bunch of information and schematics. It's obviously a pretty common part to be used for custom builds. Most, BTW, do appear to have a relay in the circuit.

[mikepward]

http://i23.photobucket.com/albums/b373/GT40_Bill/IMG_2315_zpshe8ffivj.jpg

Did anyone notice that 2FAST4U's turning almost 3,000rpm on the kitchen table?

[johnnybgoode]

2X on the Cole Hersee push button. It's inexpensive and simple to connect, no relay required. I also think it looks a bit more period correct on these cars, but that's just personal preference. I have it wired in parallel with the ignition switch so I can bump the motor with the ignition off which is handy and also lets me build some oil pressure before throwing the ignition after any extended storage. Scott

[2FAST4U]

http://i23.photobucket.com/albums/b373/GT40_Bill/IMG_2315_zpshe8ffivj.jpg

Did anyone notice that 2FAST4U's turning almost 3,000rpm on the kitchen table?

Hahahahaha

[ehansen007]

This post title is redundant and repetitive. ;)

[Big Blocker]

Mike,

To the best of my single cell brains memory, the Honda button won't take direct connections due to it's "electronic" switching capabilities - it won't take the amperage that is required to pull in a solenoid, you'll fry it.
Wire it up to activate a relay that will pull in your solenoid.

Hopefully, someone that has actually used the Honda switch can chime in here.

Doc

AS far as 2Fast4U's running at 2800, it won't last long . . . no oil pressure and he's out of gas . . .

[2bking]

I originally had a key switch and start button on my dash layout. After thinking it through, I decided that after the effort of inserting a key, the start button was being put there for "looks only" because it required an extra step to get going. I ditched the keyed ignition switch and opted for a one button start/stop with a key fob for security.

[Dlirium]

I originally had a key switch and start button on my dash layout. After thinking it through, I decided that after the effort of inserting a key, the start button was being put there for "looks only" because it required an extra step to get going. I ditched the keyed ignition switch and opted for a one button start/stop with a key fob for security.

Which system did you go with? Happy with it?

[NAZ]

Instead of guessing if you need a relay between your start switch and the starter solenoid you can calculate the starter solenoid current requirements. As long as you know the amp rating of the switch and the amp draw of the solenoid you can determine if a relay is required. Take an ohm reading of the coil on the solenoid and divide that number into 12 (12 volts) to get the amp draw of the solenoid coil. Say you measured the ohms at .8 then divide that into 12 and you get 15 amps. If your switch is rated for 15A or more you don't need a relay. This also allows you to size the starter wire for the current.

This works for conventional switches, for some wiz-bang electronic switch you'll have to figure that out.