pagong

My turbo seems to start spooling a little late (5000rpms)...i am using a tial 35mm wastegate and the 5psi spring w/out a boost controller. Do you think the wastegate is "wasting" out the boost to early? is it possible that when i get a boost controller and up the boost a bit say 10psi I would notice a difference in spool up time? it seems to me that the turbo spools way to high in the rpm band rather than what i normally see here around 3000 rpm!!! any info on this would be greatly appreciated!

by the way its a B16 w/ T3/T4 turbo from turbonetics... i think its a stage 3 trim on the exhaust side and a .54 a/r on the compressor side. dont know if that helps at all..

paulzy

iTrader: (1)

compression ratio?

big turbine housing?


those are just some things to consider about.....is it a stock motor? What's the size of that turbine housing?

pagong

motor has SRP 9:1 pistons, Crower rods, block has been oringed, balanced and blueprinted...head valvetrain is stock with the exception of a mild port job. I dont really have any idea how big of a turbine it is, which kinda sucks

but is there anything a boost controller do in terms of quicker spool?

boosted hybrid

Boost controller will lower your spool up times by 400-500 rpm. Also your compression ratio is lowered, so expect more lag. I noticed 500rpm increase in spool up time when i went from 10.2:1 compression to 11:1 compression, so i would assume the same kind of relationship with a lower compression ratio. Some things to keep in mind.