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How is this possible i cant get more than 405rwkw turbos apparently outa puff ... built motor fair bit of head work although std actuators and inlet. I call bs unless huge intake work

Fuel

Exhaust

Intake mods

Cams

Head work

It can be done, but the right parts need to be employed.

List everything...

Once the turbos are out of flow you can then make more power by using what they flow more effectively/efficiently like comp ratios and cam timing etc

E85 helps here to

but how will the exhaust gases get past the 2x restrictors?

unless you twin externally gate them.... then you might as well just get a single :)

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But don't you get into issues of spinning them too fast with a bang to follow?

Depends on engine size really, 30psi on a 2.8 will make them spin to fast, 2.6 not so much but yeah still getting up there

Also by making the engine run more efficiently means the turbos don't have to work as hard for the same power

but how will the exhaust gases get past the 2x restrictors?

unless you twin externally gate them.... then you might as well just get a single :)

I have made 458awkw from GT-RSs on my 3.0 which run the same exhaust as -5s and Piggas has made 473rwkw with -5s on a 2.8 and I have been talking with a dude the has made 716rwhp from -10s on a 2.6 so I guess it comes down to how much power you want to make

you "could" do this.. 3" dump -> Cat (because we are sensible) -> 3.5" Cat Back... plumb gate back into 3.5" cat back.. bypassing the cat :)

legal enough.. at EPA they won't be cracking gates.

What was the cause for yours to hand grenade

Who knows, bearings were perfect, no oil stavation or heat damage apparent. Running 26 psi on a built 26.

Everyone threw their arms in the air, no one's fault and said show me the money for a rebuild. [emoji19]

Going single also can be risky if your not willing to external gate to atmosphere, i know people who plumbed back gate into 3" exhaust and wonder why its a laggy pig.

That's not risky, that's stupidity. Change 3 inch to something that belongs on there. I bet everything improves.

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