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-   -   Chris's new build of an MX5 based car (http://www.haynes.co.uk/forums/showthread.php?t=6206)

CTWV50 19th April 2014 08:45 PM

Just business premises, opening a shop front for our I.T. repair business. Hard Work. No Easter for me. :)

CTWV50 27th April 2014 09:09 PM

Managed to get a few hours outside with my car this Sunday. Played around with the body work to see if these mirrors I bought would work. They do but only just so I'll probably fit a pair of 'e' marked ones that came off one of my old mans mobility scooters lol. Got a bit carried away taking pictures of it.









Had to cut the scuttle around my peddle box, tricky bit of work that so I made an mdf template first and with a few adjustments it went on ok and I could pin down it's final position. I'll be able to use the original mx5 column shroud with no big gap between it and the dash which was handy.

CTWV50 29th April 2014 11:41 PM

Got carried away with the body panels, fitting them long before I should be. Thank god I resisted the urge to get the rivet gun and drill out.:roll eyes:


dubzter 30th April 2014 09:18 PM

Just read this entire thread, some great work, car is looking fantastic. Really makes me want to get cracking with a build of my own.

flyerncle 1st May 2014 01:01 PM

Too many pictures are never enough. :p

CTWV50 1st May 2014 05:00 PM

Quote:

Originally Posted by dubzter (Post 96841)
Just read this entire thread, some great work, car is looking fantastic. Really makes me want to get cracking with a build of my own.

Glad it's inspired you, we all need as much motivation as possible to finish these cars I think.

Quote:

Originally Posted by flyerncle (Post 96850)
Too many pictures are never enough. :p

Agreed!:D

CTWV50 4th May 2014 09:11 PM

EYES?

TaDa!



There's loads more pictures on the stream.

To fit lights i had to do this to a brand new 21mm spanner!



As you can see I've moved the light up and forward to get the indicators in a IVA legal position, mimicking Caterham's design.


CTWV50 11th May 2014 11:27 PM

I am doing the wiring.................the end! :|

CTWV50 13th May 2014 11:36 PM

After 25 hours in the garage my horn now works, well one of them anyway!;)

Tomorrow night I should have the headlights and front indicators wired up and the fuse box and relays finalised.

Leaving the dash wiring and the rear light wiring until the body work and tunnel is fitted although it will all be tested beforehand.

All the steering column is wired up along with the mx5 brake switch and instrument cluster.

I've made the wiring loom so that is can be unplugged from the engine loom for when I fit another engine. I've also used the mx5 wiring diagrams so that I can easily, lol, find faults in the future.

Wgroove 15th May 2014 12:51 PM

Nice work !!!
I also bought the caterham style indicators and headlights. Now i've got a very good example how to do it.(nice pics in your photostream)
Thanks,

Wim.

CTWV50 16th May 2014 12:37 AM

Quote:

Originally Posted by Wgroove (Post 97065)
Nice work !!!
I also bought the caterham style indicators and headlights. Now i've got a very good example how to do it.(nice pics in your photostream)
Thanks,

Wim.

No problem. I used chopped up front mx5 brake calliper pistons and 12mm mild steel round bar, big washers and chopped up coach bolts to mount to the old mounting points.

Wiring update.

After getting the fuse box all sorted and neat and all the wires needed to the front of the car, I discovered I had a popped 20Amp fuse in the (ad) fan location, I stupidly assumed this was the rad fan being tired at around 10:30pm and spent an hour looking for the problem. Couldn't find the issue and went to bed. Spent another hour in the morning looking at it again and then realised it wasn't the cooling fan fuse at all! Just some f***ng random fuse that doesn't appear anywhere in the wiring diagrams and is for the fan if you have Aircon. WTF the car never came with aircon why did they fit a fuse that's some how now pops whenever it's replaced. Bit p***d off about that.

Anyway I ended up checking all my wiring out sort of and couldn't find a single problem which I suppose is good.

Tonight I never got into the garage till 9pm, two hours later i had fully functioning head lamps !

So I guess this little modification worked



Clocks at night



Main Beam



side lights in the garage


Wgroove 19th May 2014 12:30 PM

Quote:

Originally Posted by CTWV50 (Post 96919)
EYES?

TaDa!



There's loads more pictures on the stream.

To fit lights i had to do this to a brand new 21mm spanner!



As you can see I've moved the light up and forward to get the indicators in a IVA legal position, mimicking Caterham's design.


I'm a bit confused about the position of the front indicators. Can you explain the 80° rule for IVA ?

Regards,

Wim.

CTWV50 19th May 2014 10:20 PM

Quote:

Originally Posted by Wgroove (Post 97126)
I'm a bit confused about the position of the front indicators. Can you explain the 80° rule for IVA ?

Regards,

Wim.

Well you have to be able to see 50% of the indicator reflector lens at 80˚ from the direction of travel of the car on the indicators' side and 20˚ to the opposite side.



All light wiring for me is now done. One trunk of 16mm split conduit takes the wiring from the steering column to the fuse box and then back out to the front, back and clocks. Worked out quite neat but have had to order more 16mm p-clips, some ballast resistors for the led side repeaters and some 6mm split conduit to finish it off. I put the pump wiring into this conduit to the rear. When the bodywork is on I'll finish the wiring at the rear. I'll take some photos of the wiring when it's finished.

As it stands currently, flattened the battery leaving the ignition on!



I've made a start on the side panels for the tunnel and ordered some foam and black vinyl. I also have some carbon fibre look ABS plastic for the dash. Can't really get my head around the fact I'm thinking about interior trim! Weird! Am I really that far along? I must of missed something out!:rolleyes:

CTWV50 26th May 2014 07:59 PM

Started tunnelling but first the back panel vinyl glueing.



Quite like the rivets showing through.



Did the drivers side too but never got round to take pictures. I will definitely fix it all in place this week after I've convince myself I won't need to go in there again soon.


Davidbolam 27th May 2014 04:09 PM

Your build is coming along really nicely,

Have you decided on a suitable aeroscreen yet?

I was waiting for AGM to develop his but its all gone a bit quiet..


David

CTWV50 27th May 2014 05:43 PM

Quote:

Originally Posted by Davidbolam (Post 97184)
Your build is coming along really nicely,

Have you decided on a suitable aeroscreen yet?

I was waiting for AGM to develop his but its all gone a bit quiet..


David

Cheers, still got the saturn one but it doesn't fit. Might chop the ends off so it does unless I can come up with an alternative.

CTWV50 28th May 2014 09:23 PM

Got the interior tunnel sides buttoned up.





Wiring to rear is secured and got carried away fitting the drivers 4 point harness



Today I removed the light and wing brackets and painted them. Starting to get difficult to put off fitting the side panels and rear tub. Weird! :confused:

CTWV50 30th May 2014 10:25 AM

Tidied up the tank removing the old drain route brackets. Nervous work with a full tank of fuel!



New drain route.






CTWV50 30th May 2014 10:26 AM

Tank wiring route finalised.



Seat trim. Might spray the seat backs as they look a bit crap.




CTWV50 30th May 2014 11:20 AM

Oh yes a picture of the front. Painted the rad fins, wing stays, light mounts, horns etc. matt black.



black, black, black I say! Like the Japanese hair, I'm hiding in

jason 82 30th May 2014 01:42 PM

Hi Chris, making really good progress now fella ! Did you need to cut the prop after ? Or is it a perfect fit without modification ?:D

CTWV50 31st May 2014 01:54 AM

Quote:

Originally Posted by jason 82 (Post 97211)
Hi Chris, making really good progress now fella ! Did you need to cut the prop after ? Or is it a perfect fit without modification ?:D

Yeah you need have the prop shortened leaving about an inch of movement in it. Costs about £60.

jason 82 31st May 2014 05:07 PM

Quote:

Originally Posted by CTWV50 (Post 97220)
Yeah you need have the prop shortened leaving about an inch of movement in it. Costs about £60.

Cheers for that. Who do you recommend ?:cool:

CTWV50 1st June 2014 09:24 AM

You'd really need to have everything in it's final position and measure the distance between, bugger to get right otherwise. I can measure mine is you like. Oh who, sorry. I used A1 propshafts in Liverpool, did it for £60 mostly does things like bus and lorry props i think, turned it around in a week all balanced, lovely welding.

CTWV50 2nd June 2014 11:48 PM

Sunday! I should of stayed in bed. Opened the garage door and one of the cables let go. Tried to fix it as I have done in the past, made it worse and lost all the spring tension, having fixed it before about 8 times in the last 3 years I said "no more" and spent the next hour finding a replacement to buy on the internet. Guess what I'll be doing next weekend!

Anyway, calmed down enough to have a go at the tunnel cover. I'm doing it in sections as I can't get my head around doing it all in one go. This was the first attempt, too much foam and a bit weak on top but I gave it to the wife hoping she'd be able to do a good job covering it in vinyl! Sorry luv it was crap!



At this point I almost gave up for the day but I decided to simplify it and strengthen it and try again.



Recognise the the button fixing? oh yes Mazda genuine items.:cool:



It's very comfortable, just the right height. Used 1/4" high density foam and just covered the top in the end.

Doing around the hand brake is going to be a t**t of a job, me and my great ideas hey.

edit: Oh yeah, edged the seats too for the very sensitive IVA ( it's a bit rough for me, I want it nice and smooth like a babes bottom) man. I have to say I hate the IVA man!!!!!

CTWV50 4th June 2014 01:07 AM

The things you find yourself buying at 1am. Mr IVA man and his big balls:eek:

CTWV50 4th June 2014 01:19 AM

Oh the other day I was after some rubber edged trim. Scroll down a bit!:eek:

CTWV50 5th June 2014 11:53 AM

So it appears a good read and clear interpretation of the IVA manual regarding the interior projections is time well spent. I thought I'd be messing around with the pedals, steering column, and making all sorts of awkward cover panels in this area but it appears they mostly fall within the exempt zone of the steering wheel or are in fact exempt themselves.

"Visually check (using the measuring equipment as necessary) the vehicle interior surfaces, fittings and design features to ensure that contactable edges have an acceptable radius or have “Blunted edges” as required. Note the following are “exempted items” the surface of a window, seat controls, seat runners, seat belt locking mechanisms and the vehicle control pedals."





Have a feeling on my car the rear seatbelt fixings are also within the exempt zone.

Will I dare to test the theory though. I recon If I can get my switches, fog and hazard and the exempt zone I only really have to worry about the dash fixings and lower edge on the passenger side. :cool:

skov 5th June 2014 12:44 PM

May I direct you to Section 16 - Exterior Projections.
It reads:

Where a vehicle is not fitted with a roof the areas referred to in section
12 Annex 1 shall be assessed to the requirements of this section. The
exempted areas detailed in annex 1 of section 12 still apply to roofless
vehicles if a windscreen is fitted.


Which I believe means that those areas are not exempt on a roofless windscreenless car, but tested against the exterior projection rules :o

CTWV50 5th June 2014 01:10 PM

Quote:

Originally Posted by skov (Post 97275)
May I direct you to Section 16 - Exterior Projections.
It reads:

Where a vehicle is not fitted with a roof the areas referred to in section
12 Annex 1 shall be assessed to the requirements of this section. The
exempted areas detailed in annex 1 of section 12 still apply to roofless
vehicles if a windscreen is fitted.


Which I believe means that those areas are not exempt on a roofless windscreenless car, but tested against the exterior projection rules :o

LOL Bloody Hell! :rolleyes: I really hate the IVA man!!!

skov 5th June 2014 01:13 PM

Ha ha, I thought you'd like that one :p

I love how they sneak these little snippets into the manual where you'd least expect them :D

CTWV50 5th June 2014 01:16 PM

So all the car has too comp to exterior 100mm ball test and requirements. No 165mm ball test at all.

If any pedestrian I knock over finds his knee under my side of the dash then I doubt he'll be particularly concerned about his friggin knee! I'll be bloody concerned because he'll be sitting in my bloody lap! If his heads down then there then that's really worrying!:eek:

CTWV50 16th June 2014 11:18 PM

This ball is becoming quite a problem for me.



Not anymore...







Not my best work but who's going to see it down there. And if the MAN wants to wave his balls around my undercarriage he's going to be disappointed. Obviously I have to do a bit more finishing off. This job is NOT my favourite bit!

CTWV50 16th June 2014 11:20 PM

Classic bodging!;)


CTWV50 17th June 2014 10:06 AM

Arrived this morning.....



So my vehicle should follow the flow diagram path, yes, yes, no. Assuming it fails the BET test, which is likely.



Any haynes built using an engine from a vehicle manufactured during 1995, before or after July 1995, will have an Engine manufacture 'Effective Date" of 1st January 1995 if you can prove the engines date of manufacture as the letter above does. Useful to know for other builders as older mx5 cars get rarer, which will probably happen soon I think the way the sills rust through.


skov 17th June 2014 03:40 PM

No CAT for you :D

CTWV50 23rd June 2014 11:51 PM

I've kind of got carried away after having to replace the garage door. I'm now replacing the rotten window and have already rewired the garage, fitted an alarm and it's now brighter than the sun in there when you turn on the lights. Oh and a tool board with shelving. I thought I'd make the garage more usable now I've nearly finished building this car! :rolleyes:

CTWV50 24th June 2014 12:42 PM

Piccy. Someone gave me some MDF and it was taking up space in the garage making it smaller so I reversed it into making the garage bigger! Needs more tool hangers (small screws) .


CTWV50 2nd July 2014 11:27 PM

So I'm in the process of attaching lots of little bits of rubber and plastic to my car in a most unenthusiastic way. Not enjoying this bit at all.


Decided to do a compression test on the engine. Probably out of pure boredom but it's good to know where you stand with an engine before you put it back on the road after 5+ years without any regular miles.



Happy with that. Couldn't get my head round the high numbers as 9.0 CR x 14.7 is around 130 odd psi

bit of digging.....

Quote:

Compression Tests

1.6 Miata has a compression ratio of 9.4 to 1. So 14.7 psi times 9.4 equals 138 psi. But the Shop Manual lists 192 psi due to heat raise from dynamic compression. Cam timing also affects the pressure reached on the gauge. The longer duration the cam, the less the pressure.

From 1992 Mazda workshop manual (1.6L).
Compression ratio: 9.4:1 (manual), 9.0:1 (auto).
Compression pressure for both;
Standard; 192 psi,
Minimum; 135 psi,
Maximum difference between each cylinder; 28 psi.

From 1995 Mazda workshop manual (1.8L)
Compression ratio; 9.0:1 (manual and auto)
Compression pressure;
Standard; 182 psi,
Minimum; 128 psi,
Maximum difference between each cylinder; 28 psi.

in Mk2 1.8 209 is standard, 146 is minimum, max difference between cylinders 28 PSI.
Explains a lot....

CTWV50 2nd July 2014 11:28 PM

In other news I've spoken to the new wizkid at work and he things this is doable..

Quote:

Originally Posted by alga (Post 97571)
Lukasz, here's the schematic:



You can use Arduino Uno or whatever to test, but then to embed something smaller like Nano or Pro Mini is more convenient.

If you look at the source, https://github.com/alga/shiftlight/b...shiftlight.ino , you'll see that the pin numbers of the input and outputs, as well as RPMs for each led and for the blinking warning are spelled out in the constant definitions.

In order to set the switchover RPMs on a button press you'll need to add a button that grounds one of the free input pins, set the mode for that pin to INPUT_PULLUP, and in the loop check if the pin is LOW, and if it is, fill in the thresholds array with the new values based on current RPM. You'll need to delete the const specifier from the variable definition in order to be able to modify the array. Piece of cake.

So I have someone to hold my hand if/when I have a go at this. I did, rather impulsively buy this at the weekend and hooked it up tonight. Works well. Instructions for setting it up are a bit rubbish but it's straight forward really. If I can make my own I'd use that instead and integrate it into the dash somehow.


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