Hi Everybody,

It's been a while since I had a Miata, so here's my history:
Had a stock '94 in Germany until I sold it in '99.
I then moved to the States and soon helped a friend put an FM II kit in his '99. Now I'm taking over the car from him, so I'm back in the Miata game!

I'm a mechanical Engineer, just made it past 40 and not new to working on cars. Some of the fun ones in my past:
- from 1987 to 1992: 1983 Golf GTI 1.8l
- 1994 to 1999: '94 Miata
- 1995 to 2000: 1984 BMW Alpina B7/1 Turbo. This one used to be my dad's when it was new and I got lucky and bought it from the 3rd owner!
- 1999 to 2006: 1969 Big Block Corvette Convertible
- And now I'm driving a 2010 Audi A4 Station Wagon. Not acceptable! But at least it's a turbo :-)

And that's where we stand:
- It's a '99 (actually could be a '00 - not sure any more).
- Flyin' Miata FM II kit
- It uses the old "Link" piggyback computer
- Has two additional injectors in the intake pipe that are controlled by the "link"
- It has a boost control valve that is also controlled by the "link"
- Ignition timing is controlled by the link- at least in the boost region. Not sure about below 3000rpm.
- SS exhaust from Flyin' Miata: No back-pressure please!
- Last I remember the max boost was dialed in at 195KPa (approx. 14 PSI) on the REALLY GOOD gas you can get in Miami
- No other engine mods - internals are all stock
- Wilwood brakes from Flyin' Miata
- Stronger clutch from Flyin' Miata

And here are my questions:
- I live in PA near Philly- how testy are cops and emissions control people around here when it comes to mods?
- I don't think I can run at 14psi on the pump gas available around here. What's reasonable?
- That link controller seems waaaay out of date. I'd like to install an MSII. With that I can probably get rid of the additional injectors and just install bigger main injectors- right? 44lbs or so sounds reasonable.
- One of the reasons I want to use Megasquirt is that one of my future projects is adding a turbo to an old 3.5l 5 Series BMW and the most successful ones seem to be running MS, so I don't want to learn different systems if I don't have to.
- I've been reading up on the MSII, but there is just so much information, I never know what I have or need. Is there somebody here who did that conversion (FMII with link -> FMII with MSII on a '99 or '00)?

Thanks and I'm looking forward to some MT fun!

ST

 

Welcome, stefanst!

 

Hi stefanst, enjoy your stay :)

 

Welcome man, For ms... unhook the wastegate, unhook the link and all the other crap that came with it. Now it should be "stock" however dont over do it on stock ecu as the turbo will still probably spool enough at high rpms. Install MS and street tune it. Toss new injectors on, street tune again. Hook the waste gate, street tune again on low timing, then dyno tune for fine tunning. I believe there is a group buy on PNP MS2 units. Also 14 psi on E85 is common.

 

Thanks!
Sometimes you don't think of the simple things, like going back to stock. Duh.

 

I only have one picture, but here it goes. Still 4 weeks until pick-up. Can't wait!

 

October 15th there is a dyno day in Mt. Airy MD. There will be a good number of miata guys from the north east out with a wide range of setups. You should come check it out. We will most likely me more of willing to answer questions for you.

 

Thread-self-revival!

My old vented block and oil-pan are finally out. But there are some obstacles to just putting the head of my old-old original '99 onto my new-old '97 bottom end. The main obstacle was the 16-angle valve job it has- all 16 valves sticking out at different angles. On cylinder #1, where the piston had chosen freedom over being tethered by a rod I wasn't real surprised. But the other three I had thought would be OK. WRONG!

No problem- right? Just pull the valves from the '97 head and put them on the '99 head. They are after all the same. Guess what, the previous owner of the '97 was apparently not a fan of rev-limiters and enjoyed the occasional valve-bending excursion to >7500rpm.

I may be able to find 16 usable valves between the two heads, but what's the point really. So new valves it must be. Fellow forum member dstn2bdoa had some for sale at 1mm over, including springs at a decent price. So now I'm upgrading the valve-train which I had NOT planned to start with. The head is going to the machine shop as soon as the valves arrive.

Mission-creep is setting in. Let's see where it takes us. I am already committed to going from an FM Link piggyback to a standalone MS3/MS3X. Now a valve-train upgrade. Urgh. I am NOT touching the bottom-end. I swear! Unless I find some rods and pistons at a decent price

Let's see!

 

So that's whats left of the original engine...


high-flow oilpan

vented block 1

vented block 2

Anybady need a crankshaft? That may still be usable

 

Shoot me a PM I want your old stock rods from that motor.

 

Wow. Looks worse than mine. Did you ever pinpoint the cause?

 

Welcome to the forum and welcome to the man club of blowing engines

 

Raw power!
Well, the best guess seems to be too much torque for the stock rods. Pistons looked OK. All rods bent outta shape.

Edit: Come to think of it, somebody must have revved a little high or missed a gear. Otherwise I doubt the valves would be bent.