biggest turbo you can run with ebc/afc/injectors but stock int?

[eleven]

i have a 1G FWD and i'm aiming for something large that has a good upgrade path. I have an ebc, necessary gauges, safc, injectors, o2 elim rnr exh, and just need fmic & piping... i'd like to get a turbo that would let me drive on it with what i have now (running low psi) and increase the boost as i strengthen my internals (and my wallet)...

i'm looking at a t3/t4, fp green, or maybe a gt series turbo, but my main concern is a fairly decent spool with a potential for high horsepower with supporting strengthened internals... is there anything larger than say a green that will still allow me to run off stock ecu or would i be better off saving for an aem ems then buying the turbo afterwards?

 

[NOSLO2PT0]

This questin is too vague. You can run any sized turbo you want off the stock ecu. Just don't expect huge #'s that the standalong guys are making. Seems the limit for 2G MAS/stock ECU is about 550whp or so. Local guy here did that with a T61. Swapped in the EMS, immediately put down 604whp.

As far as spoolup is concerned, that all depends on what you call tolerable. Green hits full boost by 4k, 60-1 by 4300, T4's by 4500. Whatever you can deal with.

 

[Unreal]

You can run a 100mm turbo on stock internals if you want.