So tell me.... i know what trim is and i know what shops talk about when refering to turbines like the 35R and the 37R, 40 , and 42 but what turbine is used for a 50 trim turbine ? Stock...... i don't think so. I mean i know different companies run 50 trim turbines so i would imagine it wouldn't be stock, could someone help me out ?

 

uhm... that's the difference between new garrett naming and old garrett naming,

are you asking like which one it's most comparable to? housing or turbine blade?

 

Trim is an area ratio used to describe both turbine and compressor wheels. Trim is calculated using the inducer and exducer diameters. As trim is increased, the wheel can support more air/gas flow.

I recommend reading these links.

http://www.turbobygarrett.com/turbob...gt_basics.html

http://www.turbobygarrett.com/turbob...o_tech101.html

This one may answer your question
http://www.turbobygarrett.com/turbob...o_tech102.html

http://www.turbobygarrett.com/turbob...o_tech103.html