Hey all... as a part of my overhaul project on my Series 2 ERST i just bought a used Garrett T3 stage 2 turbo.. in good condition though...

My car is complete standard and has not been chipped or other engine modifications at this time... but im wondering.. will my new turbo alone increase my HP??

My old standard turbo was set to a 0,7 bar boost and im planning on having the new turbo at 0,7 bar boost also.. until i get a new chip..

 

Not at std boost, no.

 

new turbo will only spin up later ? ( so could cause more lag ) you can set boost to around 10psi, ( i think )

New turbo will not add bhp, (yet)

 

proberly will be more laggy, but i would leave boost as it is, to near 10 psi will give u problems on a unchipped ecu.

 

You won't notice the lag. Infact, the old turbo probably has cracks in the exhaust housing so new one will be less laggy.