Quote:
Originally posted by 90gs
how do the turbo #s work.. i dont get it.
t72 is huge?
t3/4 is too big for a 4 cylinder?
t28 is small?
shouldnt it follow in order?
|
It's a different brand of turbo. When people talk T3 and T4, thats Garret turbos. It's the most popular brand. T25 is generally the smallest, T4 is the biggest turbo you want to use on a 4 cylinder. The T3/T4 is a Hybrid turbo, it uses the exhaust housing of a T3, and the compressor housing of a T4 - this way with the smaller exhaust housing it spools quicker, and with the T4 compressor it pumps more air(CFM).
T3/T4 is not to big for a 4 cylinder, it's just not justifyable to use for low boost applications because it takes longer to spool up as apposed to a T25 or T28.