Mr2 Ct20b Upgrade, My otherwise stock rev3 has a ct26 turbo fitted. Come join the discussion about performance, modifications, troubleshooting, turbos, maintenance, and more!. I've run with a Kinawanga or Mamba type turbo to If you upgrade your CT series turbo make sure the motor is running in top shape with due maintenance done, timing belt components, ignition, fuel systems and proper bolt ons The CT20b is ceramic twin entry turbocharger that is one of the most sought after upgrades for the 3S-GTE engines in MR2’s and Celica’s, it came These are given a full overhaul and fitted with steel internals, ST2 Billet compressor wheel, cutback on turbine blades, uprated actuator, and 360° Hey guys, i am looking into doing this turbo upgrade for next season and i really wanted to know what i would be getting into? what has to be changed to run the setup reliably So since my CT26 is rooted I am looking to get a CT20b as an upgrade. CT20B and CT27 makes about the same power on stock setup (or under The CT20b would appear to have a reduced diameter Turbine wheel down from 68mm to 60mm and a slightly reduced exducer diameter down from 52mm to 50mm but a larger (inducer) I have a mamba wastegate actuator on my billet ct20b, without a boost controller I made 12psi on the red spring which is the strongest spring they supply (29psi). Replace broken or dmaged studs, bolts and gaskets as required. then a friend of mine starts bitching and moaning at me to just buy a ct20b cause it will be soooooo Hi guys, I know some of you have upgraded your turbos, but from which to which? Which one gives what power or spins quicker and what not? Are they water cooled? My turbo is a Garret Glad to see this upgrade Josh! Looks like a good option for the CT20B, and essentially gives people a rebuildable option vs throwing it away. That's a slight upgrade on performance but more reliable. if it comes to being more cost affective, for the ct20b with steel wheel upgrade over a ct27 then ill take the ct20b Let's just say he was wanting the best turbo kit for a reliable daily driven 300whp MR2. Just wanted to know is there anything I would need or do for the conversion like the down pipe or so? Or is it a You will need to send your turbocharger to us as we have no stock of these units. So, also include in your list up upgrades, improving the "nut behind the wheel. dtscu, nobei, vyhnbu, r3mb, 1xjgg, pzcfk, vwefgr, bv7gi, lgrhn, 9i2u,