Turbocharger application to the 13BT is somewhat of a black art. Hopefully,
some of this information can help you in this area...
Trying to get information on proper turbo sizing for your 13BT can be a
frustrating experience. You either get very little information or too
much information! Most of the pro's don't like talking about their
secret combinations, while other will give you a lot of conflicting results.
Then there are people who tell you to use a certain turbo "cause it works".
So, why not make an informed decision yourself with the proper knowledge?
Properly sizing a turbo for your 13BT is not that hard to do once you know what
to look for. By using turbo compressor maps, we get a good idea of what
a properly sized turbo would look like. We use several popular turbo models
as examples here...
Popular turbos and compressor map explanation
Ever wonder how to tell what a mystery turbo is? This can be especially
useful when looking at a "bargain" turbo that's cheap! By taking some quick
measurements, we can quickly determine what turbo you have. The following
chart can be very useful...
Compressor size chart
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