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  • Member For: 17y 5m 14d
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  • Location: Nthn Beaches of Sydney
  AIM-300 said:
what sort of rpm do you find it starts building boost and what rpm does it start coming on hard?

It depends on how you get on the gas, but at WOT it starts making boost at about 3000rpm starts making real boost about 3400rpm(6-7psi) and starts steeping out sideways while pulling hard by 3800-3900rpm(9psi) all the way to redline 5500rpm(16psi). That's on the low boost setting too if you turn it up it just pulls a whole lot harder.

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  • Member For: 22y 4m 10d
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  • Location: Sydney, NSW

so, it builds boost like a centrifugal blower? doesn't that kind of defeat the purpose of a turbo in the first place?

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  • Member For: 18y 2m 15d
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  • Location: syd south

that's the tradeoff relationship between turbo sizing and the available rpm.

these engines are big but dont rev high and to use massive turbos you need revs

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  • Member
  • Member For: 17y 5m 14d
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  • Location: Nthn Beaches of Sydney
  fordboy1981 said:
so, it builds boost like a centrifugal blower? doesn't that kind of defeat the purpose of a turbo in the first place?

Correct me if I'm wrong but a turbo is only there to create a compressed denser intake charge the exact same as a centrifugal supercharger(belt turbo) and twin screw supercharger?

From my understanding a centrifugal blower creates boost in a very similar fashion to a turbo e.g. no boost in the lower rpm range and as the impeller tip speeds up it starts making boost inline with the increase in engine rpm, although the blower is closer linked to the engine rpm due to it being run from the crank and not the exhaust gas e.g. Lag (as your can "tune" when the tubo comes on boost better with adjustments to your turbine sizing and your wastegate setting).

Aaron,

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  ktford said:
Getting married hey, I'll await its arrivalr in the for sale thread, LOL

:buttrock:

Nice ride mate!

I cant imagine how that thing would react to slight bumps in the road... my ute was bad enough w/ ~270

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  • Member For: 17y 5m 14d
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  • Location: Nthn Beaches of Sydney
  SCRIBR said:
:sofa:

Nice ride mate!

I cant imagine how that thing would react to slight bumps in the road... my ute was bad enough w/ ~270

The funny thing is it's extremly well behaved, due to the lowered rear leaf packs having a leaf removed and a pair of transverse trailing arms fabricated it holds the road probably better than a standard(lowered) ute, until you hit high boost that is... hmmm...

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