GT2860

compressor
AR 0.42
IN 44.
EX 60.0
trim 50
Turbine
AR 0.64
IN 53.08
EX 46.2

GT2860 OPTION A
compressor
AR 0.60
IN 44.
EX 60.0
trim ?
Turbine
AR 0.64
IN 50.0
EX 46.2
TRIM ?

GT2860 OPTION B
compressor
AR 0.60
IN 44.
EX 60.0
trim ?
Turbine
AR 0.64
IN 53.08
EX 46.2
TRIM ?

* I would like best spool for 1/4 mile and mid range power for track days
* less Lag
support FMIC; 380 CC iNY , 255 WALBRO, NO CAT , FULL 2.5 EXHAUST, gtech 2, electronic boost control

the views of all of you are very precious to me
thanks

Hi. All the turbos have the same comp. trim (54 going by the measurements, not 50 as stated).

The first a nd 3rd have different comp. a/r's, but the effect of compressor housing a/r is minor enough to be not really worth considering - you rarely have a choice anyway.

The first and 3rd turbos have 85 trim turbines. Whereas the 2nd has a 76 trim turbine.

Go for the 2nd turbo. The slightly smaller turbine will allow the turbo to spin up mariginally faster than the others. The compressor is small so it doesn't need the extra "grunt" available from a larger turbine inducer.

for me is Access denied.

Kj16v
the explanation was very educational, clear and precise answer to my question

Item sold so thread has been deleted

I believe there are various hybrid options out there...

Flea does a cracker so I hear.

That'll be my option when mine finally gives up the will to spin!