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Old 05-10-2018, 05:34 AM   #401
Venlonaer
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Quote:
Originally Posted by Mbeas96 View Post
I'm very close to going thru with the wasted spark install. I have the bosch 2x2 coil and miata power stage, im a few days away from ordering the wasted spark board.

A few questions first,
I deleted my last post on here because I see it was answered earlier, but just to be sure...
Using a gold chippable ezk with a custom chip installed should not have any adverse effects, correct? I have access to a ezk that does not have the daughter chip, but I would like to keep the option to adjust/have other people adjust my ezk tune.

Plus, while helping with my brothers install, he used 18 gauge IIRC (tho it might have been 16) on the board to ezk connections and it would of been a lot easier if we went with a smaller wire. These are just signal wires right? So what's the smallest wire one could use, like 22 gauge?

Then, wires that go from the wasted spark board to the power stage and from power stage to coil? I would guess bigger gauge for those, but I'm no expert in wires.

Any help is appreciated!
I used 20 awg, it's perfect. I also used 20 awg for the rest
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Old 05-10-2018, 09:18 PM   #402
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For the wires within the EZK box, almost anything is big enough. Ask your office computer support person for a bad Ethernet patch cable, or a couple feet of stranded cat5 cable, pull the inner wires out and you'll have plenty of easy-to-work-with 24ga wire. For the power stage to coil, 18ga is ok.

And yes, wasted spark with or without chipping the box is OK.
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Old 05-10-2018, 10:38 PM   #403
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Awesome, I picked up some 20 gauge the other day, and I have 18 laying around. I have the board now as well, the only thing holding me back is mounting location...
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Old 05-23-2018, 12:01 PM   #404
bugjam1999
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Some progress...

I've got the board mounted inside the EZK box and all connected up, just a few more things to collect before I start mounting things in the car...

I've made a stand off plate to go above the rocker cover - how long do I need the long nuts to be to hold the plate high enough to clear the curve of the rocker cover and the part of the Bosch 2X2 coil that hangs through the plate?

Yes I know, easy to measure - but I'm away from the car and hoping to get everything together for next time I go and work on it. If anyone could measure for me, that'd be great - thank you!

Cheers
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Old 05-23-2018, 12:43 PM   #405
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Originally Posted by bugjam1999 View Post
Some progress...

I've got the board mounted inside the EZK box and all connected up, just a few more things to collect before I start mounting things in the car...

I've made a stand off plate to go above the rocker cover - how long do I need the long nuts to be to hold the plate high enough to clear the curve of the rocker cover and the part of the Bosch 2X2 coil that hangs through the plate?

Yes I know, easy to measure - but I'm away from the car and hoping to get everything together for next time I go and work on it. If anyone could measure for me, that'd be great - thank you!

Cheers
This pdf has dimensions on the last sheet, but not the one you're looking for. I can take a measurement for you later today.

http://www.finjector.com/verkkokaupp...0221503407.pdf
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Old 05-23-2018, 01:06 PM   #406
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Thanks - I've got the coil here, I can measure the distance the coil extends below the mounting point height... just checked it's 15mm. So take off the 3mm thickness of my sheet, leaves 12mm protruding down below the sheet.

I'm wondering how high the nuts have to be to be so that the bottom of the coil clears the curve of the rocker cover?

if the rocker cover was flat then in theory 12mm long nuts (add in some extra for a bit of clearance of course) would be enough, but the rocker cover is curved...

cheers
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Old 05-23-2018, 01:22 PM   #407
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[/QUOTE]


Actually this is clearer - what's the combined length of nuts in this pic?

Cheers
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Old 05-23-2018, 05:15 PM   #408
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I used 35mm.

Something like this:
https://www.ebay.co.uk/itm/M6-SW10-3...QAAOSwmUdUW9DN
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Old 05-23-2018, 05:16 PM   #409
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But my coil, like the one in that photo, does not protrude below the mounting plate.
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Old 05-24-2018, 04:22 AM   #410
bugjam1999
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Great- thanks

Perhaps your coil is a slightly different version? Mine is the same and the one in the link below and has a bulge on the bottom.

https://cflomoto.com/products/bosch-...-2x2-coil-pack

Cheers
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Old 05-24-2018, 04:42 AM   #411
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You are quite right.
Having now got off my arse and actually taken a look, I realise my recollection does not match reality. I have the same coil which is mounted to a flat plate with similar stand-offs so that the bottom is above the plate.
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Old 05-24-2018, 08:07 AM   #412
bugjam1999
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Quote:
Originally Posted by crogthomas View Post
You are quite right.
Having now got off my arse and actually taken a look, I realise my recollection does not match reality. I have the same coil which is mounted to a flat plate with similar stand-offs so that the bottom is above the plate.
Ok great- and 35mm standoffs are enough?

I shall order some more bits and pieces...

Cheers
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Old 05-25-2018, 06:41 PM   #413
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I was going to go with 40mm and hope that was enough. My plate is 3 or 4 mm thick. If you go with 35 mm let me know!
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