Lol I heard my name?
In reality a "favorite" turbo depends entirely on the users preference in terms of power levels, purpose of the build, and what kind of powerband they want.
My choices for a practical "street" car (read 300-550hp) power level depending, are the following for 1.8-2.0l engines.
STC Hunter (53lb/min)
STC Silver Surfer mk3 (59lb/min)
GT(X)2860R (sub 400hp with quick response and broad power)
EFR 7163 (perfect all around turbo IMO, compressor flows up to 60lb/min but responds faster than a 3071R)
TD05HR-16G6 (twin scroll, perfect for an uber-responsive build up to 375hp or so, plentiful aftermarket support in terms of upgrades, requires custom manifold though)
TD05H-18G/TD06SL2-20G (these are highly efficient turbos, the 18G is good over 350 and the 20G is a solid 450hp turbo with the cast compressor wheel)
T3/T04E 50 trim (the all around turbo for those on a budget that still want quality, proven over 400hp with decent response all at an economical price)
Obviously other factors are important like turbo manifold design, proper turbo sizing, how aggressive the tune is, fuel choice, water/methanol injection, pressure ratio (I've been noticing a trend where most Honda guys are afraid to run high pressure levels and would much rather run a larger turbo at lower pressures to make the same power a smaller turbo at high pressure would make with much slower response), engine specifics and efficiency, and so on.
Now my personal turbo collection is something like 23 strong but at the moment my personal builds are getting the following:
Accord F22A1- TD06SL2-20G. Motor will be 12:2 static on E85, head work, cam, K series RSP intake manifold, Forced Performance cast 4G63 turbo manifold (fits F series motors with a few holes slotted), 400hp minimum. Turbo is getting a billet extended tip compressor wheel, ported shroud TD06 compressor cover, possibly a 9 bladed lightweight turbine wheel. Compressor wheel has been proven to [email protected]
with a slightly larger TD06H turbine wheel and 14cm T3 turbine housing.
SVT Focus - modified GT2871R. Initially the stock motor will be boosted. 2l 10.2:1 static compression, somewhere between 300-400 initially depending on how the motor behaves and what the tuner thinks. Eventually I will build another motor... Higher compression ratio, forged internals, ported head, cams (head and cams might go on stock engine to see what happens), water/methanol injection (although I don't think the OEM plastic intake manifold will like it so I need to find an alternative). Turbo will be getting a billet extended tip wheel, ported shroud T04E compressor cover, ceramic bearing upgrade, STC Investment Cast turbine housing, SPA cast turbo manifold, TiAL 38MVS, etc.
Civic will likely run a Silver Surfer at 400-450ish. Initial motor is a stock sleeve rod/piston LSV. 10:1 static compression, Neukin mini ram, TiAL MVS, Stock port B16 head, GSC T1 cams, Skunk2 Pro IM (not sure on intake manifold yet... ITBs and a Skunk2 Ultra are being debated), Megasquirt 3 pro, coil on plug, flex fuel E85/93, PWR or Bell intercooler, and so on.
I'll be using this engine just to get the car running and shaken down as I'm building a 2 liter VTEC motor with Muckmans old block... 12:1-12.5:1 static, BME aluminum rods, reworked OEM 89mm crank or lightweight aftermarket 89mm crank, VTEC head, 4Piston or Endyn port work, whatever intake manifold I use on the other engine, JDL divided T3 manifold, E85/93, methanol injection, individual cylinder EGT/AFR, etc. 500+hp.
Once the "big" engine is done I'll pull the stock sleeve LSV out and save it for a dedicated track ****, probably a CRX due to their low curb weight when totally gutted.
Still not sure on what turbo my SR will get that's going in my S13 coupe. I have 2 choices for the 800+hp VG30DETT that I'll be putting in an S13 hatch.
I have a few more projects in the works if everything works out. Although it's not like I need additional projects but if could make the ones I'm looking at a certainty I would unload a few I have now. Although again if everything works out like it should I could have them all lol.