Just wondering but I'm lookin to boost my car soon. As I'm reading over the turbo sizing I just had some minor questions. Tried searching but really cant find a straight answer.

1. Some people suggested me going with a t3/t4 57 trim. My question is, what do the trim sizes mean? as in the 57 trim etc... also like the a/r trims??

2. As the BOV's and wastegates have their own sizing, ex: 44 mm or 38mm. Does this affect performance or is it just the flange size??

thanks.. Hope I dont get bashed for not searching but really, I couldnt find the answer..

 

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

start reading

 

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by doood &raquo;</TD></TR><TR><TD CLASS="quote">http://www.turbobygarrett.com/....html

start reading</TD></TR></TABLE>

thanks.. That's a nice write up.

But it didnt discuss the BOV and Wastegate sizing?

 

Tial 38mm wastegate is fine on most applications and you can't go wrong w/ the Tial 50mm bov....problem solved

 

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by Schister66 &raquo;</TD></TR><TR><TD CLASS="quote">Tial 38mm wastegate is fine on most applications and you can't go wrong w/ the Tial 50mm bov....problem solved</TD></TR></TABLE>

I ran a 38mm Tial on my GSR and it worked perfect.