Electric turbo ?
- Thread starter K11Jim
- Start date
Yeah id get one, apparently they make the car faster!!!! they only way not understand and feel th epower is to purchase one and fit it, any links to this chineses Electric turbo?
J
J
Mightycarmods did a video on electric turbo.. pretty sure you mean the samething haha
h701micra
Deactivated Account
Spend the money on a spanner and take a piece of interior trim out.. Same power effect
Enuo
Glorified Electrician
You mean turn the rear demister on; same power effect
Thread resurrection but..... The principle is sound although the ebay ones are snake-oil.
There is a guy in the MX5 owners club who has done it successfully. He has hacked a turbo apart and drives the compressor with a motor from a model aircraft (several horsepower). Quite correctly the car's electrical system won't provide the necessary oomph whilst it's running along so he uses a deep-cycle battery to drive the motor. A split charge system then re-charges that battery from the alternator in slower time. In practice (if not in principle) it's a bit like KERS on the F1 cars where you get the boost for a short time but then need to drive without it for a while to charge the system back up.
Obviously this means you can't run daft amounts of boost because the engine still needs to work well without the boost so can't really be optimised for boost. I also suspect that the amount of batteries you would need to carry to give a high boost would add so much extra weight that it would negate the benefits of the boost (law of diminishing returns and all that).
He doesn't actually use it on the road - he uses it on the drag strip. Well that's what the boost is for but the car takes itself there and back under it's own power so there's every chance it does get used to shock the odd person in the traffic light grand-prix on the way home if the battery is charged.
Iain
There is a guy in the MX5 owners club who has done it successfully. He has hacked a turbo apart and drives the compressor with a motor from a model aircraft (several horsepower). Quite correctly the car's electrical system won't provide the necessary oomph whilst it's running along so he uses a deep-cycle battery to drive the motor. A split charge system then re-charges that battery from the alternator in slower time. In practice (if not in principle) it's a bit like KERS on the F1 cars where you get the boost for a short time but then need to drive without it for a while to charge the system back up.
Obviously this means you can't run daft amounts of boost because the engine still needs to work well without the boost so can't really be optimised for boost. I also suspect that the amount of batteries you would need to carry to give a high boost would add so much extra weight that it would negate the benefits of the boost (law of diminishing returns and all that).
He doesn't actually use it on the road - he uses it on the drag strip. Well that's what the boost is for but the car takes itself there and back under it's own power so there's every chance it does get used to shock the odd person in the traffic light grand-prix on the way home if the battery is charged.
Iain
Enuo
Glorified Electrician
1 hp is 750w give or take, I guarantee model aeroplane motors are nowhere near that, as the tiny wankel (petrol!) one I've seen was 0.33hp (250w).
Like I keep saying, for meaningful boost you'd need at least 80amps fed to the motor at 12v to get the power required to the compressor. Deep cycle batteries are all very well, but at 80 amps the battery would go flat and cook in minutes (deep cycle battieries are NOT suited to high current).
You'd at LEAST need a whole other belt driven alternator... but then you're essentially belt drving the compressor so might as well supercharge as there is potential for much higher gains.
Like I keep saying, for meaningful boost you'd need at least 80amps fed to the motor at 12v to get the power required to the compressor. Deep cycle batteries are all very well, but at 80 amps the battery would go flat and cook in minutes (deep cycle battieries are NOT suited to high current).
You'd at LEAST need a whole other belt driven alternator... but then you're essentially belt drving the compressor so might as well supercharge as there is potential for much higher gains.
Enuo
Glorified Electrician
VERY short bursts...like maybe 10 seconds at a timethe aeromodelers use brushless dc motors nowadays eh (100a 1 kw ?) a 3kw one should work ok for short bursts imo
frank
Club Member
Aye, similar to the current F1 setup
pollyp
Club Member
and also close off the air filter intake port during boost to direct all that high pressure into the engine cos you don't want it all to simply escape out the easiest path out the open air filter.
so a very crude calc, say the engine sucks 1.3L per 180deg (2.6L per rev) and upto 17L/min whilst accelerating upto 6.5k rpm,
this small compressor flows upto 14.5cfm, 400L/min providing upto 116psi but with only 50L capacity will only last 3min
this one flows 9cfm, 255L/min upto 150psi and the 100L tank will last 6min
this huge beast flows 40cfm, 1132L/min providing upto 145psi and the 270L capacity will last bout 16min but it weighs 250kg! 1/4 of the car and requires 400v supply and costs £3k lol
wonder if they tried it in scrapheap challenge?
pollyp
Club Member
on a bad day you could just wack the boost over 150psi n guaranteed to blow the engine up lol
or when feeling adventurous or environmentally friendly or wanna avoid londons congestion emissions charge, just run it on pure boost without any combustion = air powered car
So a little over 6kW is around 8hp.
http://www.giantshark.co.uk/product/171783/c8085-08-kv170
As it happens it's a TD05 that it's driving the compressor half of (geared to spin it at the right speed).
And the battery pack - none if this lead-acid malarkey or weight.
http://www.giantshark.co.uk/group/2389/12-cell-lipo-battery
Plumbing is the same as any other turbo installation but without the exhaust stuff.
Like I said it's for short bursts and then you need to give it a while to let the alternator re-charge it (or swap out the battery pack). It's been on the rollers to tune the Greddy and set the ignition and fuelling so pick holes all you like but here in the real world it works.
Iain
**** Strawbridge and Jem Stansfield made an air powered motorbike for a TV programme. It used two fireman's BA tanks for the air supply.
Electric RC planes are becoming more popular due to the increasing restrictions on IC ones. That's driving development in motors and batteries (plus the mobile device requirement for better batteries helping it along).
Iain
Electric RC planes are becoming more popular due to the increasing restrictions on IC ones. That's driving development in motors and batteries (plus the mobile device requirement for better batteries helping it along).
Iain
