Whats up everyone? I drive a 90 miata.. currently getting it ready for some autocross.. trying to figure out what size turbo to go with

Anyways some friends told me about the site figured I'd check in.

 

Yo....

 

pics!

 

welcome, more info on here than you'll ever want to read...good luck with your build

 

hi. any turbo is better than no turbo.

 

Up until a few years ago, I was an active autocrosser. My '91 miata has a FM3 turbo system with a Garrett T28 sleeve bearing turbo, 0.49 A/R turbine and 0.48 A/R compressor (system is for sale, btw). I think the slightly lower A/R lent itself to wanting to spool up quickly. Lag has never been a problem for it, not even for autocrossing. Modulating the throttle to deliver the right amount of power to the tires takes a little experience but it's not a problem. In our relatively small region, we had at one point a fairly large SM2 crowd with mostly turbo miatas. It wasn't uncommon to have 5-6 turbo miatas and a couple RX7's competing in that class at an event, all running very close times.

Good luck w/ the car and getting it ready to autocross. Have fun and welcome to the forum. I'm new here too.