Small Turbos?

[jamesm]

Originally Posted by SamS

Hi guys, first post here.

I don't have a BRZ/FR-S, but I've been researching them quite a bit lately.
I used to have a 1996 Miata which I turbo'd, and Miata people including myself seemed to use a lot smaller turbos.

I had a GT2554R (actually from an AVO kit my dad and I previously installed on his Impreza 2.5TS) on my 1.8L Miata and enjoyed instant boost from about 1800rpm and up with ~220 whp vs 120 stock.
It seems like no one is offering below a T3/T4 50 trim for these cars. The Miata head was way older technology so I'm sure the FA20 head flows way better which should help spooling earlier. I admit I don't know much about T3 sized turbos, would a 50 trim give good torque by 2000-2500 rpms?

Also, are T3/T4's only oil cooled? Are people installing turbo timers? It was nice having water cooled with the GT2554.

i've owned couple of flyin' miata turbo kits and a mazdaspeed nb, and my gtx28 fr-s spools faster than any of them. the gt2554r on the 1.8 was pretty close in terms of spool but absolutely no comparison up top. the fr-s blows it away.

the stock turbo on the msm spooled slow as hell, so even after all of the supporting mods (fm 'big enchilada' setup), the gtx28 spools probably 1000rpm sooner and has much better response.

the only miata i've ever owned that was cooler than my fr-s (with the turbo of course) had 8 cylinders

[Sellout]

Originally Posted by jamesm

the only miata i've ever owned that was cooler than my fr-s (with the turbo of course) had 8 cylinders

CO of the hospital ship 'Mercy' has one of those. Looks like a blast. I stare every time I walk past...

[jamesm]

Originally Posted by Sellout

CO of the hospital ship 'Mercy' has one of those. Looks like a blast. I stare every time I walk past...

i didn't get to keep the car long, my father-in-law and i built it as a project and sold it soon after. it was fun to have around for a while though .