my setup
100% stock gsr motor
peakboost ramhorn manifold
xs power waste gate (going to get a tial wastegate)
50mm tial bov
450 dsm injectors
garret t3/t4 turbo a/r 60
walbro 255 lph
3inch downpipe going to 2.5 inch exhaust with high flow cat
stock intake manifold
tuned on crome
on 4.5 pounds of boost (have a leak somewhere going to go for a retune after its fixed and boost 8psi)
making 221 hp and 165 torque I don't see boost until after 5500 rpm

My questions are what can I do to make the turbo spool faster? When I build the motor and say im able to boost 18 pounds will the spool time get faster?

thanks
chris

 

Run a test pipe and 3inch exaust. And fix your boost leak.

 

i think the big problem is that you're leaking boost, thats why its taking so long to spool.

 

Would I spool alot quicker with a 3inch exhaust?

 

Not alot quicker your 2.5 exaust is ok. The boost leak is your main problem.

 

Another question a t3/t4 60 compressor side and 63 exhaust size where should it spool at?

thanks again
chris

 

I'd be willing to bet that the problem is your Chinese wastegate...they tend to leak