Thank you, Sir.
So where do you want me to start? lol I don't know anything about the car or it's setup.
I know you will find a TON of information on www.miataturbo.net , but be warned, they are a serious group over there and you really have to mind you Ps and Qs until you establish yourself. I'd suggest reading as much as you can on there before posting (if you decide to do so). It really is the best resource.
By what I can go on, you really need to get engine management under control. I'm guessing you're running a PowerCard to control fuel right now. Without a standalone ECU, you can't adjust timing...and adjusting timing is where the power and reliability comes from. You are lucky that DIY is over in Suwannee. I'm sure you can get a base map from someone on MT or from the guys at DIY for the MS. Your best bet for tuning would either be at DIY or Ed over at Balanced Performance (he did my tuning).
After getting that sorted, I'd get a good 15x8/15x9 wheel (and no 0-offset garbage either) and some Hankook RS3s. You want to know what grip feels like?
Does the car have a LSD?
Is the car burning oil or anything? What makes you suspect valve stems? You should probably check compression and do a leakdown test...as well as the oil + compression test. With the lack of timing control, if it has detonated under boost, you could have a ring issue. Luckily BP longbocks are pretty cheap and the swap is very straight forward, if you end up in the worst-case scenario.







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