Quote:
Originally Posted by Dragonitti
Do you know how a Centrifugal supercharger works? Properly designed? That don't make much sense to say that when the companies that produce S/C'ers have been doing it for decades.
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again, who's talking about centrifugal superchargers? the whole discussion was about a possible TRD Roots SC... and in that regard there are little to no companies making roots kits for import engines let alone small displacement 4 cylinders. that's what i mean by "properly designed". most of the roots kits use older eaton units and are most likely not intercooled.
Quote:
Originally Posted by Dragonitti
Intercoolers add thermal efficiency but it's not a deciding factor between a S/C'ers efficiency compared to a turbo's efficiency.
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i never said intercooling had anything to do with efficiency. when i talk about intercooling it is in regards to the fact that most import roots SC kits dont use them. as for efficiency, the newest TVS and twin screw designs have efficiency in the 70%, close to 80% range.
Quote:
Originally Posted by Dragonitti
Thanks for confirming what I already wrote. If it's a V8 then the difference is minor from S/C to turbo on the same applications. Everything you listed was American Muscle V8's. They are not Import Motors.
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that's my point. all the hig quality roots SC kits are made for domestic large displacement engines. if someone cared enough to use them on a small displacement engine, i think you'd be surprised just how much you can get out of them.
Quote:
Originally Posted by Dragonitti
Bro, Minimal lag is basically nonexistant. I'm talking "Not noticeable" minimal lag. And lag in a turbo is still more efficient than the Centrifugal S/C design. And the Torque curve of a turbo depends on the turbo. You can change the curve simply by changing the turbine size. Not all S/C'ers produce a flat torque curve just like not all turbo sizes create a flat curve. You shouldn't generalize in that fashion because of a little thing called tuning.
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again, what's with you and centrifugals? no one is talking about centrifugals. the whole discussion was about roots blowers.
and roots blowers have NO lag, make boost linearly, and DO give you a flatter tq curve boost for boost.
this is a 2.0L ecotec (on 100 octane)
and this is a RSX with a custom lysholm kit (@16.4 psi)
find me a turbo 2.0L 4 cyl that makes that much power with a flatter tq curve.
Quote:
Originally Posted by Dragonitti
Power is not included into subject of Efficiency.
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who said anything about power?
