Well fuck me, that car is amazing. I really don't understand it though, are the electric motors just there to make up for the turbo lag?

My buddy bear:
https://www.miataturbo.net/attachmen...ine=1372460365

Those things are suicidal bro. They just jump out in front of cars all the time for no reason at all. Like literally they will wait by the side of the road and then at the last second jump out and get hit.

Attachment 239618

The electric motors are there to help deliver a more even torque line throughout the engine rpm. A 1.6L at 12k rpm is a very peaky motor. No way around it. The electric motors on the other hand have a fairly flat torque that falls off with rpm. Also while u're driving nicely and dont need the power from the gasoline motor, the gasoline motor just idles and keeps the batteries charged up almost like a generator.

https://www.miataturbo.net/attachmen...ine=1372478015

I can practically hear Jamie Hyneman's voice saying "Well there's your problem."

https://www.miataturbo.net/attachmen...1&d=1372481253

Over ten degrees off. No wonder the engine feels like shit, idles at 60 kPa, and is getting 17 MPG.


I also re-tested the compression with a decent quality gauge this time. The numbers were nice and even- between 140 and 155 all around, right near the bottom end of the spec.

trying to figure out what in the heck is going on in that picture
https://www.miataturbo.net/attachmen...ine=1372482310

Very precise TDC?

https://www.miataturbo.net/attachmen...ine=1372482430

Correct, hes using the height gauge to find the TDC.

https://www.miataturbo.net/attachmen...ine=1372482561

I feel like that may be overkill.

http://3ir.net/wp-content/uploads/20...ie-Hyneman.jpg

Not really, thats probably the easiest way to find it if your markings are off. A .001" dial indicator isn't that precise by comparison. At my old job we used to have one that did a .010" 360 degrees sweep.

https://i.chzbgr.com/maxW500/2593384960/h73AC9F87/

I usually just eyeball it.

https://www.miataturbo.net/attachmen...ine=1372482953

It is not overkill if you are re-indexing a pulley which has slipped. Achieving that degree of precision by feel is impossible.


https://www.miataturbo.net/attachmen...1&d=1372483096

Joe isnt there a pin in there thats suppose to prevent that?

https://www.miataturbo.net/attachmen...ine=1372483438

This is a common failure mode.

The pulley is not one solid piece of metal. It's two pieces, an inner and an outer, bonded together with a rubber ring.

As the rubber ages and hardens, it becomes possible for the two halves of the pulley to slip out of alignment. The inner part is still properly aligned with the crank (a woodruff key and pin ensure this), but the outer part is not aligned with the inner part.

https://www.miataturbo.net/attachmen...ine=1372484138


This also means that all of the careful work I did optimizing the ignition map is completely for shit.

If i design a MT 3d model will people buy it from shapeways? ...possibly a 2-3" keychain model.

Let's not get into 3d printing of guns... because you know... guns are bad.
/sarcasm


Besides, there is the gun thread for that.
I bet this guitar sounds like complete shit.
https://www.miataturbo.net/attachmen...ine=1372530564

The crank is aligned so that the pulley notch is at the "T" mark on the cover.

The black mark on the pulley indicates where TDC actually is.

https://www.miataturbo.net/attachmen...1&d=1372530077

Twenty-three degrees. That's how far that little fucker was off.

So, yeah. Miatafolk ought to check their pulleys. Cheap dial indicators and cheap magnetic bases are not expensive.