FASTdan
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| posted on 18/9/09 at 12:02 PM |
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MX5 box on a duratec
Is this a practical alternative to forking out the £300 for a bellhousing to suit the type 9?
Will any of them fit, or only the latest ones?
Are they a strong box? Any other major issues?
Not sure how the prop interface would work - custom prop, half and half?
Just thinking out loud......
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blakep82
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| posted on 18/9/09 at 12:04 PM |
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all type 9s are the same (except the length of inpput shaft on the v6 ones)
they're fairly strong, whats a power of a mx5?
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matt_claydon
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| posted on 18/9/09 at 12:14 PM |
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The Mazda box has the sweetest gearchange of all time and it's much better than a Type 9 so I'd go with that. Can't help with which
ones have the right bolt pattern though I'm afraid.
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Guinness
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| posted on 18/9/09 at 12:20 PM |
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I believe it is only the latest 6 speed gearbox from the current model MX-5 that fits the duratec.
Obviously I could be well far of the mark here, so don't quote me on that.
To use older boxes, you'll need an adaptor plate.
HTH
Mike
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James
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| posted on 18/9/09 at 12:24 PM |
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I think a Duratec-T9 bellhousing is more like £200 or maybe £150 2nd hand.
But agreed that it looks like poor Flak is having a lot of trouble getting fly/clutch/etc. to fit for a reasonable price.
But the MX5 box is something Id damn like to try! 
What sort of power are they up to? And are the ratios any use with our sort of diffs?
Cheers,
James
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"The fight is won or lost far away from witnesses, behind the lines, in the gym and out there on the road, long before I dance under those lights."
- Muhammad Ali
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l0rd
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| posted on 18/9/09 at 01:08 PM |
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i believe that only the latest one will fit.
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D Beddows
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| posted on 18/9/09 at 01:46 PM |
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and from the prices I've seen you wont be getting and awful lot of change from £300... but at least you will start off with a stronger box and
better ratios than a type 9
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James
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| posted on 18/9/09 at 01:58 PM |
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quote:
Originally posted by D Beddows
and from the prices I've seen you wont be getting and awful lot of change from £300... but at least you will start off with a stronger box and
better ratios than a type 9
Are there clutches and the like up to decent power?
Cheers,
James
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"The fight is won or lost far away from witnesses, behind the lines, in the gym and out there on the road, long before I dance under those lights."
- Muhammad Ali
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Stuart_B
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| posted on 18/9/09 at 03:54 PM |
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hi all, does anybody got the dimsions of this box?
and will it fit in an mk tunnel?
cheers
stuart
black mk indy, 1.6pinto on cbr600 bike carb's.
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flak monkey
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| posted on 18/9/09 at 04:31 PM |
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It is only the very latest MX5 box which will fit as others have already said.
They usually sell secondhand for around £400, and are quite hard to find at the moment.
Also look to be quite chunky compared to a type 9.
Sera
http://www.motosera.com
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dave1888
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| posted on 18/9/09 at 04:54 PM |
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What Flak said, they are a bit chunkier i have a 5 speed in mine and the gearchange is nicer than the type 9.
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ss1turbo
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| posted on 18/9/09 at 06:32 PM |
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Type 9 bellhousing here at
£200, but apparently you also need their flywheel @ £200  but it allows you running the stock "Pinto" clutches - which are just about
the cheapest available in uprated spec..
Long live RWD...
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D Beddows
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| posted on 18/9/09 at 09:03 PM |
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quote:
Are there clutches and the like up to decent power?
If you're tuning an MX5 engine the recommended route is some kind of forced induction and the forums are noticeably lacking in tales of woe
about gearboxes exploding so they look to be easily strong enough for a n/a duratec
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FASTdan
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| posted on 19/9/09 at 06:23 PM |
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hmm so it sounds like moneywise your looking at a similar outlay either way - but the MX unit might provide the overall best solution?
what work is there in the prop interface? I've not really looked at how the prop connects on either box.
I like the fact that the MX unit means you can run standard flywheel/clutch arrangements.
Is the MX a hydraulic clutch though? I'd prefer to keep the mechanical if pos.
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NOTE:This user is registered as a LocostBuilders trader and may offer commercial services to other users
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mconley3
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| posted on 30/9/09 at 10:36 AM |
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I'm in the states, but I think this applies. I lucked into a NC 6-speed cheap when the MX-5 cup racers were having problems with them and
switching to the 5-speed. Mine was pulled out of a new car that was being turned into a race car. As it turned out, the 5 speed was more of a
problem than the 6 and they figured out how to make the 6-speed reliable. Keep in mind, these problems occur under racing conditions, I'm not
aware of any problems for street cars. Here is a good post about the NC 6-speed.
http://forum.miata.net/vb/showthread.php?t=237737
Mark
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