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

Davidbolam 22nd June 2012 12:55 PM

Please can you see if he has two :)

chrisponter 22nd June 2012 01:07 PM

I'd be interested aswell if he has enough :)

ozzy1 22nd June 2012 04:37 PM

I will give him a ring tomorrow and see how many he has left.

Johno 22nd June 2012 09:37 PM

Hi Ozzy1,
I guess Toyota's are popular down your'e way. I haven't actually ordered this part yet but would be interested if he has any to part with... :)

Johno

PorkChop 22nd June 2012 11:53 PM

I would be very interested in buying one as well Ozzy.

chrisponter 23rd June 2012 12:22 AM

Just found a breakers which specialise in Toyotas, sent them an email and they will sell what they call a 'good condition second hand one' for £18 plus VAT, that includes delivery.

http://www.tcbparts.co.uk/

Not on the site as far as I can tell.

ozzy1 24th June 2012 08:54 AM

I have left him a message and asked how many he has.I have asked for 4 and just waiting for a reply.As soon as i know i will post the reply.

ozzy1 25th June 2012 10:21 AM

Ok got the info. These are second hand but very good condition only downside is he only has 1 left. I think Ctwv50 was first off the mark so first choice has to go to him if interested.

CTWV50 25th June 2012 11:28 AM

Quote:

Originally Posted by ozzy1 (Post 75051)
Ok got the info. These are second hand but very good condition only downside is he only has 1 left. I think Ctwv50 was first off the mark so first choice has to go to him if interested.

Is paypal ok? Let me know how much and who to and I'll paypal over assuming the postage isn't ridiculous.:) Thanks Ozzy!

CTWV50 30th June 2012 02:55 AM

So my enormous exhaust silencer arrived earlier this week. So I've spent most of this week's evenings messing around with sketchup trying to learn how to use it and figure out an exhaust. It's been a really useful exercise.



Worked out I need only two bends of 90˚ and around 115˚ or 65˚ depending on how you look at it!







Exhaust seems well made too, and it bloody should be at the price!

ozzy1 30th June 2012 07:20 AM

Just one thing i would check is the end of the silencer relative to the rear wheelarch as the exhaust end is not a 90' it obviously extends further back.There was a measurement posted i think by HandyAndy with a measurement from the wheel centre to the outer of the wheelarch.

skov 30th June 2012 07:26 AM

Fook me, I know you said it was big... :eek: :D

CTWV50 30th June 2012 10:40 PM

Quote:

Originally Posted by ozzy1 (Post 75282)
Just one thing i would check is the end of the silencer relative to the rear wheelarch as the exhaust end is not a 90' it obviously extends further back.There was a measurement posted i think by HandyAndy with a measurement from the wheel centre to the outer of the wheelarch.

Yes I have measured it but may move it forward anyway for ease of passenger entry.

Quote:

Originally Posted by skov (Post 75283)
Fook me, I know you said it was big... :eek: :D

Haha I know but it was only £12 more than the 5" one. And who wouldn't pay £12 for an extra couple of inches, especially in girth!!!:D

CTWV50 30th June 2012 10:52 PM

It's a straight through pipe so completely unrestricted flow of gasses down a 2.25" bore pipe for my little 1.6 should give it a throaty rumble. lol

Today I got a few hours in the garage so I removed the collector lambda bung by making myself a 23mm spanner from a 13/16th of an inch spanner. Never met a 23mm nut before!

And then removed the heat shield to discover two shield mounting brackets had cracked during removal. We'll we all new that would happen. And then noticed some cracking in one of the tubes near the collector. So this was a good excuse to get the welder out and repair the crack, beef up the rest of the collector weld, weld the pipes together higher up to add strength and remove the rest of the shield brackets.






CTWV50 1st July 2012 11:37 AM

I remember reading something about this over a year ago so i decided to keep the heater matrix and use it as a radiator. Don't know how effective it will be but I suppose if this is a problem and we are all using a a smaller radiator than the standard car and binning the heater matrixes some sort of reroute will be required.


Johno 10th July 2012 08:54 PM

Hi chris hows things?
Going to be doing my cooling system soon and as upto yet not really researched it. If the heater matrix is going to help would it be better near a cool airflow source?
So is there anything you can't find a use for...LOL:D

ps... Simon had the samething on his exhaust manifold (had black soot on the outside of the 4 into 1 branch) not a good thing but at least you found it.:eek:

Excellent job Chris........

Johno

CTWV50 10th July 2012 09:54 PM

Quote:

Originally Posted by Johno (Post 75759)
Hi chris hows things?
Going to be doing my cooling system soon and as upto yet not really researched it. If the heater matrix is going to help would it be better near a cool airflow source?
So is there anything you can't find a use for...LOL

ps... Simon had the samething on his exhaust manifold (had black soot on the outside of the 4 into 1 branch) not a good thing but at least you found it.

Excellent job Chris........

Johno

Hi John,

Not really getting too many hours in the garage but a 90 degree silicone hose and two straight connectors turned up today so I'll be updating with images probably end of this week.

Yeah the matrix is not in the best location but it's the thought that counts! :D

I have been distract of late by my mountain bike, been spending a few quid on that and the wife's comfort mtb. Going on holiday soon to Wales and need the bikes up to scratch.:)

Yes the exhaust I think will be taking a bit more strain so a bit of extra welding can't hurt. Just think 18 months ago I'd have chucked it and bought a new one BUT NOW I can fix exhausts. :cool: I love welding it opens so many possibilities to a skin-flint like myself!:D

CTWV50 23rd July 2012 11:18 PM

Been a while thought I better make a post, keep the momentum. Been busy upgrading my mountain bike and ended up building nearly a new one!:rolleyes:

And then upgrading/ fixing the rest of the families bikes for the summer now it's finally arrived!:o

Here's my Speedo drive adapter from Ozzy1 all the way from Oz! Thanks Steve.



And here's some not great images of my airbox setup....


CTWV50 23rd July 2012 11:21 PM





I've cut down and modified the original plastic pipe, keeping the expansion chamber and idle pipes



Heed to brace some of this stuff when the engine comes out.


CTWV50 23rd July 2012 11:22 PM





I did laugh out loud when the original airbox snorkel magically fitted, with a little modification, to get a good blast of cold air from higher up at the front of the radiator. Pure luck!

Need to get back out there and finish this off, been 2 weeks now with no progress.

skov 24th July 2012 09:12 AM

Nice one Chris.
I gave up trying to fit that bl00dy massive airbox in!

CTWV50 24th July 2012 10:26 AM

Quote:

Originally Posted by skov (Post 76358)
Nice one Chris.
I gave up trying to fit that bl00dy massive airbox in!

I nearly did as well, a proper little puzzle.:)

Johno 25th July 2012 08:36 PM

A wee bit of a tight fit there Chris..:eek:
I didn't even attempt to try and fit that lot as I thought it was not possible. Once again Chris you are the exception....:D
So doing away with a lot of the black plastic is good or bad for the engine? Like whats the "Dynamic chamber" for?

Is that speedo cable drive still from a Toyota, looks like you will still need to trim the PPF bracket to get it pointing in the right direction.

Good job once again,,,,Johno:)

skov 25th July 2012 09:16 PM

Quote:

Originally Posted by Johno (Post 76412)
So doing away with a lot of the black plastic is good or bad for the engine? Like whats the "Dynamic chamber" for?

I can only imagine it's a bad thing! I can't help thinking the clever guys at Mazda knew what they were doing when they designed it.
and I've got a sneaking suspicion we'll find out the resonant chamber thingy was there to iron out a massive flat spot in the midrange!

alga 25th July 2012 11:38 PM

Or they might have done that to reduce intake noise.

CTWV50 26th July 2012 12:19 PM

Don't really know why it's there, was thinking of leaving it out but as I needed the plastic housing for the idle air I decided as there was space to put it back in. I was thinking it was there to stop the MAF housing plate from fluttering but that might be a load of bollox. :shrug:

The adapter from Ozzy1, (Steve) which has no part numbers should allow me to not have to modify the gearbox, but it will go up rather than down which is probably more useful due to ground clearance etc.

I'll post a pic later but flickr's down at the mo'.

CTWV50 26th July 2012 09:27 PM


CTWV50 20th February 2013 11:01 AM

So came out of hibernation early yesterday afternoon. Cleared out the garage rolled the car out and finished the steering column. Managed to get a straight run from column to rack without any clearance issues.








CTWV50 20th February 2013 11:03 AM




ayjay 20th February 2013 02:50 PM

I am not sure a straight run from column to rack is a good thing. I think its a safety issue:confused:

CTWV50 20th February 2013 04:30 PM

Quote:

Originally Posted by ayjay (Post 88666)
I am not sure a straight run from column to rack is a good thing. I think its a safety issue:confused:

Yes I thought that, but as I understand it if your using a modern column and it has safety features like being collapsable then that's fine. Quite clearly you don't want a solid rod of steel pointing at your bollocks so I've used 1mm walled steel tube and left a gap inside the tube between the upper mx5 shaft and lower escort shaft so it will hopefully buckle under impact.

I hope the above sounds sensible unless someone know otherwise, please let me know.

If you don't have a saftey column then the SVA want to see an indirect linkage of 3 or more UJs I think.

Dualist 20th February 2013 08:27 PM

Quote:

Originally Posted by CTWV50 (Post 88668)
Quite clearly you don't want a solid rod of steel pointing at your bollocks so I've used 1mm walled steel tube and left a gap inside the tube between the upper mx5 shaft and lower escort shaft so it will hopefully buckle under impact.

I would still put another UJ in there if it was pointing at my nuts, 1mm tube still hurts especially if it's traveling in a straight line. Looking good though and glad to see you got back to work on it.

Johno 20th February 2013 08:29 PM

Hi Chris,
Good to see you're back at it:) :)
I look forward to seeing more photos soon.

CTWV50 20th February 2013 10:21 PM

Cheers guys. I'm pretty sure my plums are safe! :-)

CTWV50 8th March 2013 05:18 PM

I've been quite busy of late. check out my new flickr photostream. I've decided to make some headway towards starting the engine so unfortunately this means I have to finish some of the jobs I've started. :D

So I've sorted the cooling system with mostly new pipes but still need to get a plug for the rads original coolant temp sensor hole. Other than that it's just a few jubilee clips and a metal hose support away from testing.



Also made headway towards a usable tank. Managed to rotate the sender unit with a neat little triangular bracket made from some galvanised steel from the garage door. And bent the sender float wire so it sit neatly just above the fuel pump. But when this tank says empty it definitely is empty!! No guesswork involved, ok there will be about a litre in the sump but that's it! I've then cut the metal plates from the top of the mazda's fuel tank, cleaned them all up and used J B Weld to fix and seal them to the top of the tank. I have also used the mx5 breather system as it seemed silly not to, but I don't think I'll be using the carbon can as it's just more plumbing for no real gain other than EU emission regulations I think.



Hope to get the tank attached to the car this weekend and also finish the cooling bits and bobs. Might have to start/finish that gearbox mount I've been putting off because I can't make up my mind what to do, Hmmm!:rolleyes:

Johno 10th March 2013 04:49 PM

Quote:

Originally Posted by CTWV50 (Post 88942)
I've been quite busy of late. check out my new flickr photostream. I've decided to make some headway towards starting the engine so unfortunately this means I have to finish some of the jobs I've started. :D

So I've sorted the cooling system with mostly new pipes but still need to get a plug for the rads original coolant temp sensor hole. Other than that it's just a few jubilee clips and a metal hose support away from testing.



Also made headway towards a usable tank. Managed to rotate the sender unit with a neat little triangular bracket made from some galvanised steel from the garage door. And bent the sender float wire so it sit neatly just above the fuel pump. But when this tank says empty it definitely is empty!! No guesswork involved, ok there will be about a litre in the sump but that's it! I've then cut the metal plates from the top of the mazda's fuel tank, cleaned them all up and used J B Weld to fix and seal them to the top of the tank. I have also used the mx5 breather system as it seemed silly not to, but I don't think I'll be using the carbon can as it's just more plumbing for no real gain other than EU emission regulations I think.



Hope to get the tank attached to the car this weekend and also finish the cooling bits and bobs. Might have to start/finish that gearbox mount I've been putting off because I can't make up my mind what to do, Hmmm!:rolleyes:

Hi Chris looking good.

The MX5 breather, does it vent and allow air in when the tank is being emptied??
I was looking to use one of those £30 parts from CBS but if the MX5's works both ways I may use that as I still have my donor.

CTWV50 10th March 2013 06:19 PM

It must do I guess. :)

CTWV50 16th March 2013 09:55 AM

Bit more done! Made a plug for the rad out of an old brass mk2 golf mechanical injector insert, a 22mm copper pipe blank and plumbers lead solder with silicone sealant used to fit it.






CTWV50 16th March 2013 10:00 AM

Tank is fitted and plumbed in and filter location sorted.






alga 16th March 2013 12:42 PM

Quote:

Originally Posted by CTWV50 (Post 89066)
Bit more done! Made a plug for the rad out of an old brass mk2 golf mechanical injector insert, a 22mm copper pipe blank and plumbers lead solder with silicone sealant used to fit it.

I just got a Golf rad thermal switch which is supposed to go in that hole, it was just about £4 or so. As a bonus I got an extra thermal switch I can use :-)


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