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Supercharged K20a2 Vtec - Race Spec


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#166 cptkirk

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Posted 08 June 2009 - 07:39 AM

looking good
just one thing when all the wiring is done you need to cut all the bullet connectors off and solder all the wires or proper plugs, as they get corroded and will cause you problems in the future.


Thanks for the heads up on that, some will need to remain for ease of removal of parts (need to invest in proper plugs) but most will get soldered and heat shrinks.


Nice one Andy, wiring defintely requires patience and a steady head... Looking real nice though..

What exactly is the "multi function relay unit"? Is that a Honda part or something you can use in place of several relays to switch different loads? i.e. one power into the unit, but several switched powers out controlled by several inputs...


Correct. The Multi function relay unit is a part supplied by the guy that I bought the charger and ECU from, it is a load of relays in a little box that easily connected to the ECU using a proper Honda plug. Rather than doing a load of splicing into the engine loom. I believe it is a Rover part, but dont quote me on that. It for things like reverse switch relay, start button relay and stuff like that. It is a good little unit.


wring i love wiring actually one of the few things im good at hahahaha other than spannering and use of big hammers and choice words lol


Love big hammers and choice words, two of my favourite pass times, especially when using a f*ckin great big c*nt of a hammer....

#167 cptkirk

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Posted 08 June 2009 - 08:06 AM

Progress Report:

A busy weekend, but not all of it spent doing the car.

Mostly wiring still, placement of switches and stuff like that, not many pictures taken as its pretty boring stuff at the moment. Hope to get onto some more productive, sticking stuff on kind of work soon, even just getting to the stage putting the lights in will be a sense of acheivement.

So much to do, so little time...........

#168 dougie1142

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Posted 17 June 2009 - 06:28 PM

is there an instruction manual for the wiring?

#169 cptkirk

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Posted 18 June 2009 - 09:58 AM

is there an instruction manual for the wiring?


Not as such, no.

There are a few sheets of A4 naming what each wire on the Zcars loom is but thats about it. As for the fuse board its a case of trial and error to find out which fuse goes with what wire.

Trust me when I say it is no easy task and if you dont have a clue then leave it to the Auto Electricians, I am going to have someone look over my work once it is done, just for peace of mind.

#170 rick.spi

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Posted 18 June 2009 - 07:59 PM

all i can say is WOW... looks profesionally done! :thumbsup:

#171 cptkirk

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Posted 23 June 2009 - 09:17 PM

Right been a long time since I posted anything with pretty pictures, so here goes.

I got my expansion tank back from the welders (cheers Barrie), there was a slight mistake along the way and it doesnt look quite like what I planned but it'll do the job just the same.

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#172 cptkirk

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Posted 23 June 2009 - 09:38 PM

Radiator Cowling:

This one has been a long time in the making, I decided not to go with extra holes in the bonnet to increase the air flow to the radiator so decided to amke the most out of what I had. The idea is to make as much of the air that enters the opening for the radiator actually flow through it and then direct as much air as posiible back up and out of the scooped bonnet, rather than having a underbonnet full of hot air. I started out by modeling the radiator and then designing the fan mounting plate and cowling to match. I got a friend to lay me up a carbon/fibreglass sheet, the same angles as the dash as that was what I had laying around to take dimensions from. Then I had to get the fan plate and the front and rear cowlings laser cut. I would like take this opportunity to thanks Stuart at Wessex Metalcraft for the laser cutting, good rates and very helpful. Then got my old mate Barrie to weld the sides to the fan plate (once I had pre-bent them), as you can see from the series of photo's it worked out quite well.......

The Model in AutoCAD:

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The front cowlings:

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The fan mounting plate:

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Offered up to the radiator in situ.

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Then mounted the fans:

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Then Mounted the new carbon cover thats gonna force the air through the radiator:

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Then fitted the bonnet - looking goooood.......

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#173 irishdude

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Posted 24 June 2009 - 05:12 AM

looking great. Nice idea on the Radiator, you're going to need everything to keep that baby cool once you are tearing down the road :gimme:

#174 cptkirk

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Posted 24 June 2009 - 11:27 AM

I did a bit of work to the dash as well over the last couple of weeks, its now a 3 peice dash.

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Then I fitted my 52mm Gauges (was going to go for overhead mounting but Lyle (PhotoguyUSA) beat me to it).

The pod for the tacho/speedo is still to come (another thing to get done...aaarrrgh)

You may notice some new switches in place, and still loads of wires everywhere - slowly but surely..........

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#175 cptkirk

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Posted 24 June 2009 - 11:42 AM

looking great. Nice idea on the Radiator, you're going to need everything to keep that baby cool once you are tearing down the road :gimme:


Cheers Brian

Yer thats what I figured, especially with the forced induction, thats going to raise the temperatures a bit. As they say on the Tescos advert over here - Every Little Helps.......

#176 joe_m

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Posted 24 June 2009 - 11:55 AM

Just look through the hole thread!
Love it, amazing work mate. .

#177 cptkirk

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Posted 24 June 2009 - 03:51 PM

Just look through the hole thread!
Love it, amazing work mate. .


Thankyou, tantalizingly close to getting it running, cant wait to give it a blat up the road.......

#178 Saxo-Fiesta-Mini

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Posted 24 June 2009 - 04:14 PM

no no no its not fair ur making me want to cry again ur fabrication is awesome and the way youve angled the tank to flow more air threw the vent is specatular when i one day meet u and this beast ur gonna realised you inspired my plans :D

#179 cptkirk

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Posted 25 June 2009 - 11:25 AM

no no no its not fair ur making me want to cry again ur fabrication is awesome and the way youve angled the tank to flow more air threw the vent is specatular when i one day meet u and this beast ur gonna realised you inspired my plans :)


Thanks - although I have to admit that the tank is Zcars design and is an option when buying the kit, I just added a little extra to the basic design to maximize is potential.

Still not completely finished up the front end yet, I have a few other bits n peices that I want to design into it but unsure if I'll get them done right away.

#180 Gingerjoe

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Posted 25 June 2009 - 09:01 PM

this thing gets more unreal by the second




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