BKD

I've always wanted a rear wheel drive Japanese car, to drive every day and to take it to the local track (Zandvoort) sometime (too bad there's no mountain passes around here for the real Eurobeat feeling lol.) So I always loved Miata's, specifically NA's, and I decided to go for one now that they're still affordable, and I found this 1991 Turbo Miata (Mazdaspeed3 K0422 Turbo, at 20 psi.. I know..) The engine has been revised and upgraded with forged rods, Torsen diff, cooling etc. And a seemingly (thus far) good tune with flatshift and launch control, which feels pretty sick in an NA haha! It also has a little electronic a boost controller so perhaps I should turn it down a bit. By the way, is any further ecu tuning required if I where to lower the boost pressure? The speed is quite addictive though, not sure if I want to lower the boost pressure now 😂
pics, not the best quality, I know:



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JCline

Welcome to the forum! Nice Miata!

collin

If you have any experience tuning at all then you would probably be completely safe to just turn down the boost since all the fuel and ignition and already tuned below it.

If not, it my be a safe bet to have a professional do it just to be safe. Learning to tune on a boosted car is not a cheap way to learn. (Ask me how I know.)

BKD

Okay thanks, I've got a little experience, not with boosted cars though, I'll let the guys at the local tuning garage take a look at it.