Medek

i've been searching and im learning alot about this topic but i need some more info then search has provided latley...

i want to know what trim and a/r is ideal for a T3 on B18B1 w/ injectors s-afc hack.. im planning on building a low boosting low budget (7-8 psi) street FI setup..
i'm aiming to fully spool at 3000-3500 all the way to 7000 rpms without running out of breath.. so here's some number i've been looking at tell me what you guys think.. it's very appreciated and the more deatil the better... thanks

-Compressor A/R is .60 with 58mm wheel. Turbine A/R is .82.
-r/42 on the intake side and r/48 on the exhaust side.
-.53 compressor and .47 turbine
-.50 A/R COMPRESSOR HOUsing .63 A/R TURBINE

-The A/R on the turbine side is .67 and .48 on the compressor side

pro's and cons regarding these numbers?

p.s. my friend wants to sell me his t25 off a 95 talon tsi i heard that will run out of breath at 5500 rpms.. true??

Bailhatch

none of those are really complete descriptions, the first one could be good.

If you are going to use a straight T3 get a 60 trim or super 60 with .60 A/R compressor cover and .63 A/R turbine housing. You might even get 7psi before 3000 with that 60trim. You can get these as a used factory turbo for under $175 or a rebuilt ebay one for about 300 i think.

Yes T25s are not very usable on B18Bs, don't waste your time.

Medek

thank you, it's very appreciated

any differance in numbers if using a t3/t4 hybrid?