turbo spool

how long does an average sized turbo take to spool?

First of all what is average to you? and what motor are you talking about and what type of turbo and size like t3/t4 t77 cause it could be any where from like 200 rpm from a turbo on a firetruck to 7000rpm on a race car

probably getting a t4

on a 4clyd car a adverage turbo usuallys starts to spool about 2500rmps and makes its boost at around 4000-6500rmps. im not 2 fimilat with the whole "t3/t4" turbo systems i stick to my gt2530 and my td-o6 and of course the t-25, t-28, and the almighty t-78, t-88 and t-51
but basicallt the bigger turbo you put on a 4clyd car the longer it will take to spool, also if you want a quick spoolin turbo get a ball bearing turbo, they spool alot quicker than a cemitrical!

hope this helps

1

My 15G starts spooling at 2k and is at full boost by 3k.

That's in first gear, in other gears it can spool up completely in 500-1k rpms.

anywhere from between 1500-4500rpm depending on the turbo and engine mods

i know the T3/T4 reaches full boost on a GS-R around 4000-45000 rpm. thats in first gear, you are still gettting boost before that though.

It's not only how long the turbo takes to spool-up, also depends on the size of piping and length, along with how big the IC is. All that has to be pressurized too, before the engine will see boost... hehehe

on my motor, gsr. I have a T4 60-1 non-ball bearing. Full boost 17psi hit at 4.5k rpm.