Comparo Btn 3076 & Borg Warner 256

[juggernaut1]

Just surfing the net and found this comparo btn Garret 3076 and BW 256 with pics and dynos at various boost levels.

Cheers,

http://www.honda-tech.com/zerothread?id=2220363&page=1

[discopotato03]

The trouble is that he is comparing apples to oranges , that "GT30R" (GT3076R) doesn't have a native Garrett GT30 turbine housing on it - if it did the turbine outlet would be conical shaped and different internally .

The Borg Warner turbo is physically larger and almost certainly plain bearing .

The thing it has missing is a twin scroll turbine housing , many BW turbos have them and it's a large part of why they can be effective and affordable turbochargers - in the US .

When Garrett developed the GT30BB turbos they factored size and weight into their equation which is why a well set up one with the biggest turbine housing can easily crank out enough air to support a bit over 500 horsepower .

Did you note that the Garrett turbine , aside from being physically smaller , has less blades/more swept back trailing edges and a slightly larger tip height . If would have to be lighter and possibly have similar gas throughput .

My money would be on the GT3076R (with a proper turbine housing - not a TB31 item) if I was buying for suitability rather than price .

A .