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#8: 01-22-2013, 08:24 PM
 Serb Legacy GT
Title: Senior Member
Location: Mount Prospect, IL
Car: '05 Legacy GT 5pd; 99 M3 cpe 5spd
Posts: 258
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It's not just the end result, it's the way they make power. The VF40 may make say 260 whp and 280 wtq, but it will die off in the high rpms. You get that initial punch and it tapers. A VF52, or BNR16g which I am installing, will make the same power and more, and they won't die off. It will be a nice, continuous pull. Boost will taper slightly on the higher rpms due to the stock fuel system, but it will far out power the VF40.

It's about the power under the curve, and the VF40 can't compare. It peaks quickly and dies off, a VF52 or BNR 16 peak quick and maintain power. A maxed out VF40 would lose a race to the others since if they had the same power it would taper.

Last edited by Serb Legacy GT; 01-22-2013 at 09:56 PM..