Aaaaalright. Much better. For your reference, it’s honestly a much better idea to just use the proper sized T3 frame turbocharger with this manifold (See below). In my case, I already had a T3 manifold and T2 turbo, so this will have to work. Update 7/17/16: About 2000 miles and it’s still going strong.
Per Lars, owner of MKTurbo.com (check it out, excellent budget turbo setup), this is the proven T3 you want on your Miata:
“As for which T3 China Charger to go with below are the specs. Basically you want to search eBay for “t3 turbo 2.5″ v-band .42ar” and then compare the specs in the auction to what I have below. Get the one that matches these specs exactly. CXRacing and Rev9Power are the 2 brands that I recommend and you can usually make an offer in the $190-210 range and have it be accepted. The big thing you want to make sure you do is port the waste gate hole to be larger.”
T3 TURBO CHARGER INTERNAL WASTEGATE .48ar
Intake: 2.5 inch
Inlet: 2.25 inch
Compressor trim: .42ar
Compressor Wheel diameter: 43.20 / 60.41
Turbine Wheel diameter: 45.74 / 62.86
Exhaust Trim: .48ar
Turbine flange type: t3 flange
Down pipe flange type :2.50″ v band
Cooling type: oil cool only
Horsepower rating: 325-350
Actuator setting: 8psi
