Ways to lower my spool-up rpm?

[tpunx99GSX]

Smaller turbo, you don't need 600+ on the street.

Says Who?

[Kracka]

Me.

[tpunx99GSX]

Me.

Who do you think you are?

[Kracka]

Krackasan.

[Shane@DBPerformance]

BB will not spool it quicker initially. Cams, ported head, tubular manifold will likely make it laggier. A .63 A/R exhaust housing might spool it 300-500rpms quicker. Bigger/less exhaust after the turbo will help spool quicker. Coating the exhaust manifold and turbine housing will help keep heat in and spool quicker.

If you remove ignition timing in the spool up areas it will spool faster, but you can get to the point where it spools faster, but makes less power than if you just had reasonable ignition timing and less boost.

[Speedfreak]

Tuning the wastegate? When I was sold the wrong springs for my wastegates without knowing(way to heavy), I noted that spool was sooner and quicker(on Shanes dyno) than previous runs. Meaning if you put pressure(boost) to the top of the wg I'm guessing you could possibly keep it fully closed until you need to regulate the pressure and thus create the same effect? For reference, when I got the correct springs, it spooled slower and later.

Just a theory, but I believe its done already by some?

[Goat Blower]

Tuning the wastegate? When I was sold the wrong springs for my wastegates without knowing(way to heavy), I noted that spool was sooner and quicker(on Shanes dyno) than previous runs. Meaning if you put pressure(boost) to the top of the wg I'm guessing you could possibly keep it fully closed until you need to regulate the pressure and thus create the same effect? For reference, when I got the correct springs, it spooled slower and later.

Just a theory, but I believe its done already by some?

That was the main idea behind those fancy electronic boost controllers everyone used back in the day. I don't hear anyone using those much anymore.

[1QUICK4]

N2O?

[Shane@DBPerformance]

Manual boost controllers usually spool faster than electronic, unless the electronic is setup to stay shut and not start pulsing until the last moment.

[Goat Blower]

Manual boost controllers usually spool faster than electronic, unless the electronic is setup to stay shut and not start pulsing until the last moment.

I thought that was the benefit of the HKS EVC2? Shep and some others were all using it at one point ~10 years ago.