Does anyone have experience with either spec? Is the 0.63 gonna spool much later and is the 0.48 that limiting on higher boost if I only want to run abou 6-8 psi? TIA

 

get the .63. you'll be much happier.

 

if you only want to run 6-8psi, get the .48. thats plenty big to make that boost... and will give less lag than the .63.... although, if you ever want to run more boost down the line- you really should get the 63.

perhaps a compromise, and get a .57 trim

 

 

if you are only looking to run 6-10 lbs of boost, you'll be happy with the boost response of the .48
and when your looking to run more boost, you can always just buy the .63 a/r turbine housing for only $159
just my 2cents..

 

Isen't it true though that the top end will suffer a bit no matter the boost level with a smaller turbing housing like that?

 

i was wondering the same thing for my b16a

 

I run a .63 turbine on my B18B at 9psi and have full boost at 3700 in 1st gear. It is less in other gears because of the load on the engine. Full boost at 3000 in 4th gear.

- Chris

 

ttt

 

 

sweet! back from the dead. I did end up going with the .48 since I didn't plan to boost higher than 8 psi for the moment

 

hmm.......I shift at 5500rpm with my .42 I just bought a T4 tho so ....

 

how about an automatic integra? .48 or .63? My car shifts around 7k rpms.