Depends on what psi you plan on running. The higher the psi, the faster it will spool but the lowest you can set it. Most stick with a 7psi-1bar spring and tune from there.

 

on pagparts it says 1bar is 14.5 psi http://pagparts.com/perfpts1.asp?ppr...&mfrid=193

 

7psi - 14.5psi. Is that a little more clear? Sorry

 

cincy, you thing the 034 tube mani is worth the 900 dollar price tag?

 

Depends. If you want a fast spooling turbo and worry free driving, i would go with a nice cast manifold. If you dont mind a tiny bit more lag and much more top end, atube manifold will make a huge differnce. Plus if you go with that, you really should go with a .63 housing so you can optimize flow.

Here is a good chart to show the differnce between log and tube.


GT30R
Compressor 76.2mm, 56 Trim .60 ar
Turbine 60mm, 84 Trim, .82 a/r
AER Stadalone Management (England)
Both Pulls @ 23.5 psi
Superflow Engine Dyno

Full Race
hp - red
tq - teal
ATP
hp - blue
tq - green

 

is that the down pipe setup i should get with the tube mani? Will the car still pass emissions you think, if i get two o2 sensor holes?

 

If you have a decent cat welded on, you should pass emissions. Yes they sell the dp for like $250 on the website