So you’ve been dabbling in the black magic that is forced
induction. You replaced your weeny little stock turbo with a
big honking single turbo, and you have kicked some serious ass down
at the quarter mile track and/or pulling the sled at the truck pull
events. You’ve learned first hand about ‘turbo
lag’. It takes a little while for that large turbo to
finally spin up and come on to full boost; but when it does the
rush and results are undeniable.
If racing and sled-pulling are your main motivation for upgrading
your engine, then the issue of turbo lag is a minor one. In
that case; you are probably thinking about your next upgrade.
The setup you should consider is a parallel twin turbo.
This is where you have two identical (in this case; big)
turbos force feeding air into your motor; usually one for each bank
of cylinders on a V8 engine. In this situation, you will
still have the issue of turbo lag; but when those big turbos do
spool up, it will feel like God ...