Hi miataturbo, I'm not strictly a complete noob (see here Hello - new member from Yorkshire
) but this is my first post back on here after a few years.
In the past I've had an NA (in that post) then an NB, loved both. Since had a Toyota MR2. Which is a bit, well, porky. And the roof doesn't come off. Because here in Britain, where it pisses it down all year and the sun never comes out, its really important that the roof comes down
After test driving S2000, Boxster etc, I just wasn't excited about the running costs, parts, need to be going a billion mph before they come alive etc. I realised that a turbo roadster wasn't out my system yet, so I've picked up this. I'm looking forward to getting stuck into this one, body shop first, sort the nasty interior out etc, but it should make a fun road car (Also has the requisite suspension, roll bar, blah blah which is why I bought it - lots of the expensive bits already done, just needs finishing properly and to a better standard.).
I know the MX5 very well, I'm happy with all the 'normal' stuff and had my old ones in millions bits, engines out, clutches, suspension rebuilds etc plenty of times - no problems there. This post purely relates to the stuff under the bonnet that makes it go.
The car has been built by previous owner over a few years. Spec, roughly, from what I can work out is -
UK 1600 NA.
Greddy Manifold and Turbo (TD04 based, but not quite, I believe?)
Greddy downpipe, custom exhaust from there on - nice, quiet-ish, looks well made.
Greddy E-manage blue.
1.8 Red injectors.
Gizzzmo Electronic boost control.
Front mount IC.
Vortech rising rate pressure regulator.
Greddy MAP sensor.
Bosch knock sensor and some kind of whopping knocklight on the dash.
Various other stuff. In some ways. I think he's done a half decent job for the budget -wideband, good quality boost gauge, electronic boost control, knock sensing. Oil drain into the pan, good stainless feed, etc etc. They owned it for a long time and used it daily, wife used it etc, which is a good sign.
Day 1 Engine bay
, on Flickr
Day 1 Bay hotside
, on Flickr
Day 1 Bay coldside
, on Flickr
In many other ways, Its lacking. I'm a vehicle design engineer by day (Buses though, nothing fun like race cars!)so there's a whole load of stuff I don't like, that I tell people off for at work.
Generally, the pipework, hoses, vac hoses, etc, are a mess, haphazardly placed, badly mounted, bits rubbing etc. Cheapo pipe clips used. Some of the silicone hoses are kinked (particularly the small take off to the idle control under the throttle.
He liked his zip ties. He also liked to run wires the shortest distance possible - see boost solenoid wiring dragging over plug leads.
The car will be run as my daily eventually, so I need to get it reliable and safe first.
My immediate short term list of things to fix goes as follows -
Wiring - generally tidy up.
Throttle cable - slack as.
'Heated washer bottle' (I.E. a bit melty).
Stock 20yr old radiator and hoses seriously concerns me.
No oil cooler.
Medium term list goes -
Get hold of a laptop and cable, start doing some logs on road/dyno
Start looking at optimising whats fitted.
Ditching AFM etc? Re-arraning intake/piping/turbo orientation
Decide whether to continue mess about with Emanage, or bin it all and go MS of some variation.
Regards the map - I've only driven it 100 miles or so, in the snow. So far
it seems safe, though possibly exhibiting a bit of the lean tip-in problem. Parts for an o2 clamp shall be bought. But I don't *think* its on the brink of blowing up, afr's are vaguely ok and boost is smooth-ish and feels strong, So I'm happy with that side of things as a starting point at least.
ETA - Longer term plan. Moar Power. I wont lie!
Other than things I've pointed out, I wonder if anyone can spot any absolute clangers in the install?
Safe to say Miataturbo is firmly back on favourites list, lots of reading to be done!
Just as a close, here it is minutes after buying it, looking cool and sheddy. The photo seriously flatters the paint quality!
Day 1 Washed_B
, on Flickr