Trident's Exocet Build

[trident]

Nov 25, 2014 19:25:41 GMT snowbird1 said:

Nov 25, 2014 15:48:51 GMT trident said:

Looking for some conformation before I cut a wire…..

I'm looking at adding a starter button…… now is it the blue and black wire that I need to cut on the ignition and connect to the switch or am I wrong and it's one of the others..? 
 

Yep, blue/black wire switched to batt+ will crank engine. Note the starter solenoid is energized directly i.e. no relay, make sure the switch and wires are rated for the solenoid current (sorry don't know what that is without checking but must be at least 30amps).

Cheers Snowbird1

So I'm half way there with the blue black wire but I was thinking about it last night. Will I also need to connect another wire from the ignition?  or will I just need to cut the blue black wire extend it and have the wire from the ignition to the input and the one to the starter to the output ? As you can see the switch is a 50amp push switch. 

Thanks for your help.

 

[mawdo81]

The ignition starter on the barrel normally cuts power to lights etc to reduce the load on the battery whilst the starter is making such a draw. Are you going to handle that?

[snowbird1]

Are you doing away with the key switch completely?
Do you need any of the circuits on the acc/cigar fuse, key position #1 black/white wire?
Also the black/red wire is powered in key position #2 - that powers wipers, heater/AC and windows, will you use any of those circuits?
If not switching white (batt+) wire to blue wires(s) will power all the circuits you need to start/run.

[trident]

I am keeping the key switch as I need a steering lock to be able to pass the iva test in Uk. The plan was to just use key to turn on to position two and disengage the steering lock, then use the starter button for starting instead of the final turn of the key to start.

[trident]

Nov 26, 2014 18:19:44 GMT trident said:

I am keeping the key switch as I need a steering lock to be able to pass the iva test in Uk. The plan was to just use key to turn on to position two and disengage the steering lock, then use the starter button for starting instead of the final turn of the key to start.

Ok I think I have worked it out but please ….. someone correct me if I'm wrong or confirm if I'm correct….

The white wire is a constant 12v feed. If I tap into this and run a wire to the start button input connector (connection 2 on the switch) and then cut the blue black wire which is the starter wire and connect this to connector 1 on the switch, then when I press the start button the engine should start.  + add an earth wire from the switch ( connection 3 ) to the chassis.

[biggunz]

What is the ground for? Is there some sort of LED on the switch? The rest of what you said seems right.

Shaun

[snowbird1]

Interesting that the IVA requires a steering lock, I have a new 2013 Mazda 3 with keyless starting and it has no steering lock. What happens if you are using a pre 1970 donor without a steering lock (or a Saab with a gearshift lock)?

[nitram]

From the manual:

1. A vehicle MUST be fitted with either a mechanical anti – theft
device or an electronic immobiliser

2. If fitted to the Vehicle, an anti – theft device

a. must be operational

b. must not operate on any part of the braking system

3. If it incorporates a mechanical part that acts upon a system used to
control the vehicle

a. It must Deactivate before the engine can be started

b. It must be deactivated while the engine is running

c. It must have a actuation which is a distinct and separate
function from that of stopping the engine

Where the vehicle has no mechanical anti - theft device fitted:

4. An electronic immobiliser must be fitted.

[trident]

Sorted the start button.

Shaun - yes the switch lights up when pressed. See video below 

Snowbird1 - Good point and having read Nitram's post ( Thanks Nitram ) I obviously didn't read the manual 100% as because I have an immobiliser I don't need the steering lock.. however I will keep it so I have two layers of security in order to stop any one that might want an Exocet without the need to build or pay for one.  




I've also re fitted the electric 



And the front side panels of the centre console 





In order to keep water out from the top of the electrics under the bonnet I added some foam to create a water tight seal.





 

[jgilbert]

Trident,

Looks good, are thoughs switch safety covers IVA compliant? I was looking at some but wondered if they would pass?

[trident]

Nov 27, 2014 21:57:41 GMT jgilbert said:

Trident,

Looks good, are thoughs switch safety covers IVA compliant? I was looking at some but wondered if they would pass?

No  I don't think they do as they protrude more than 9.5mm and I'm not sure if there would be any sharp edges or they would retract if subjected to 40kgf…. and I'm not going to try it either, but fear not I have a back up plan already at hand.  

From the manual...

All switches, control knobs etc which are mounted on the instrument panel which are within the "specified zone", contactable by a 165mm diameter. Sphere and protrude from the instrument panel by more than 9.5mm must be likely to retract or detach with no sharp edges when subject to an impact of 40kgf.

[scooby1929]

Love the starter button very Honda S2000.

[trident]

In order to make sure that I don't fail iva on the buttons I have not used the starter button or the toggle switches. The wires are there but I've decided to act safe. Instead I have just used two switches that I know at 100% iva safe.
  


Both light up red when the lights are turned on. As I have a Uk spec donor the dash has a warning light to show the fogs are on so no need for any other indication to show the fogs are on or off.





Managed to get a bargain off e-bay in the form of a steering wheel.  £30 for a MOMO Millenium Evo steering wheel. Cheapest on e-bay new is £199.99 - RESULT   I also think it really suits the Exocet with the triangle shape centre.





 

[jgilbert]

What diameter did you go for?

[trident]

Dec 1, 2014 22:55:19 GMT jgilbert said:

What diameter did you go for?

It wasn't so much the diameter I went for it was more of a case of that was the diameter of the steering wheel..

In answer to your question.  The one I got is 350mm (about 13 1/2" for the US guys) which I think is a really nice size. The original MX5 one on my car is 370mm ( about 14 1/2").  The trouble with my original wheel is that the top part of the steering wheel rubber has de bonded from the internal frame meaning I can twist the rubber back and forth. So no good for iva.