electric superchargers

[anonymous-user]

350Matt said:

Funny



So a measured gain on a dyno isn't enough to convince some people that this is worth pursuing or is a valid product?

What more proof would you like exactly?

Well, a measured gain on a chassis dyno is NOT proof. Proof is an independantly verified (by an authority like the Vehicle Certification Authority in the UK, or CARB/EPA in the US) test suite on a currently certified and homologation std facility (engine dyno)

However, i am not saying it doesn't "work". 3kW (however, there is no data to actually show the delivered compressor power.....) is clearly enough to provide a light pressure charging effect on a small engine. (A conventional turbochargers power transfer is between 20 and 80kW depending on it's size!!).

My contention is that it is not cost effective. i.e. for the money you could get more power using a conventional supercharger, turbocharger, or nitrous, etc. There is also no durability data for the device either. Finally, there is no mention of battery life, which is likely to be very poor with such high current demand and deep charge cycling (LA/AGM batteries really do not like deep discharges!)

[annodomini2]

Max_Torque said:

350Matt said:

Funny



So a measured gain on a dyno isn't enough to convince some people that this is worth pursuing or is a valid product?

What more proof would you like exactly?

Well, a measured gain on a chassis dyno is NOT proof. Proof is an independantly verified (by an authority like the Vehicle Certification Authority in the UK, or CARB/EPA in the US) test suite on a currently certified and homologation std facility (engine dyno)

However, i am not saying it doesn't "work". 3kW (however, there is no data to actually show the delivered compressor power.....) is clearly enough to provide a light pressure charging effect on a small engine. (A conventional turbochargers power transfer is between 20 and 80kW depending on it's size!!).

My contention is that it is not cost effective. i.e. for the money you could get more power using a conventional supercharger, turbocharger, or nitrous, etc. There is also no durability data for the device either. Finally, there is no mention of battery life, which is likely to be very poor with such high current demand and deep charge cycling (LA/AGM batteries really do not like deep discharges!)

Yup and the weight, sticking purely with supercharging, a belt and pulley is going to be much lighter than a 20Kw motor.

[PaulKemp]

Saw some very interesting electric chargers at DSEI ExCel London this week, didn't have time to quiz them but in this environment you would not last long if it didn't work, that said power availability to drive the system would not be an issue as many of the vehicles had huge battery packs and auxilary generators