Search found 118 matches

by fuzzy-hair-man
Tue, 23 Dec 2008, 22:39
Forum: Technical and conversion discussion
Topic: Automatic versus Manual for EV
Replies: 27
Views: 3335

Automatic versus Manual for EV

hmm, this issue may be just the thing to push me into airbag suspension -- how can it roll when it's on the ground? Is there anything passive electrical you can do to a motor (DC or AC) e.g. Short it out? You can always turn your wheels so you don't go far... Can you rig something up with the vacuu...
by fuzzy-hair-man
Sun, 21 Dec 2008, 21:22
Forum: General EV Discussion
Topic: Garnaut says EVs worse for greenhouse
Replies: 31
Views: 3631

Garnaut says EVs worse for greenhouse

There's only one problem with this sort of debate, where does it end? If we truly believed in reducing CO2 emissions we'd all leave the car at home and walk, pedal or catch public transport. That would reduce emissions severely but we're not going to do that are we? We're too bloody lazy, me includ...
by fuzzy-hair-man
Sun, 21 Dec 2008, 19:52
Forum: General EV Discussion
Topic: Garnaut says EVs worse for greenhouse
Replies: 31
Views: 3631

Garnaut says EVs worse for greenhouse

Perhaps it is relevant to say that by converting to EV you are increasing your electricity usage, (not great generally) but it does mean that if you tick the GreenPower option you are increasing the demand for GreenPower and therefore your demand for change over and above what you otherwise could ha...
by fuzzy-hair-man
Fri, 19 Dec 2008, 18:52
Forum: EV Motoring
Topic: 7:30 report 18/12/2008
Replies: 6
Views: 1067

7:30 report 18/12/2008

The general tone seemed to be that (series) hybrids are the go for now, but as battery prices go down and capacities go up, and as petrol prices go up, the fuel tank will get smaller and smaller and eventually disappear. Which makes sense, I guess. Most people don't like change, so in twenty years ...
by fuzzy-hair-man
Thu, 18 Dec 2008, 16:59
Forum: Technical and conversion discussion
Topic: Performance and cost between DC and AC -EV's
Replies: 92
Views: 7526

Performance and cost between DC and AC -EV's

Goombi I think you want to multiply the gear ratios not add them.
So your 1st gear ratio would be 3.4 x 3.53 = 12:1

your 5th gear ratio is 0.75 x 3.53 = 2.64:1

by fuzzy-hair-man
Wed, 17 Dec 2008, 20:57
Forum: EV Racing
Topic: Formula E
Replies: 4
Views: 1279

Formula E

acmotor wrote: Tell us more ... as the song goes.


Tell me more, tell me more, like does he have a car?
Tell me more, tell me more, does it get very far?

Could be written for EVs Image
by fuzzy-hair-man
Wed, 17 Dec 2008, 17:43
Forum: Technical and conversion discussion
Topic: Performance and cost between DC and AC -EV's
Replies: 92
Views: 7526

Performance and cost between DC and AC -EV's

Hi Matt I have been reading many of your past posts. But this answer you gave is debatable and inconclusive... The specs on the AC24LS I mentioned before show that it is getting towards it's most efficient at about 5000 - 6000 rpm so this would support what Matt said whether this efficientcy comes ...
by fuzzy-hair-man
Tue, 16 Dec 2008, 17:27
Forum: Technical and conversion discussion
Topic: Performance and cost between DC and AC -EV's
Replies: 92
Views: 7526

Performance and cost between DC and AC -EV's

How fast will a ac motor turn being directly coupled to 5:1 diff reaching 100km/h ?? I am NOT looking for ,how quickly is the car going to do 100km/h ! 100km/hr = 100,000 metres / hr = 1666.667 metres / min 1666.667 metres / min with a 2 metre circumference wheel = 833.33 wheel rotations / minute A...
by fuzzy-hair-man
Sun, 14 Dec 2008, 21:10
Forum: Technical and conversion discussion
Topic: EV's & hilly terain/highway driving question.
Replies: 21
Views: 1953

EV's & hilly terain/highway driving question.

I imagine that weight has a greater impact on performance and range in hilly terrain than it does on the flat? so perhaps it is best to try to focus on getting the weight down as far as possible? the 280 doesn't seem overly light if you can find one (hard I know) the 240/260Zs are a bit lighter. Are...
by fuzzy-hair-man
Fri, 12 Dec 2008, 16:56
Forum: Technical and conversion discussion
Topic: Direct Drive: Do I have enough torque?
Replies: 61
Views: 7396

Direct Drive: Do I have enough torque?

On the subject of diffs that may suit your needs. Daihatsu Terios front diff 5.3:1 alloy housing (light)and very short from drive flange to axle centre. Thanks for the tip, some more info: http://en.wikipedia.org/wiki/Daihatsu_Terios Yeah thanks Kdryan that's a good tip I'll check them out. http://...
by fuzzy-hair-man
Fri, 12 Dec 2008, 02:08
Forum: Technical and conversion discussion
Topic: Direct Drive: Do I have enough torque?
Replies: 61
Views: 7396

Direct Drive: Do I have enough torque?

Hey FHM I would probably take another look at your base figures, my 78 model clubman with a 1275cc (1360cc bored and stroked) was 660kgs without me and the motor isn't that heavy. That's cause a clubby is heavier than a roundnose http://forums.aeva.asn.au/smileys/smiley17.gif Here's what I figured ...
by fuzzy-hair-man
Wed, 10 Dec 2008, 23:48
Forum: Technical and conversion discussion
Topic: Direct Drive: Do I have enough torque?
Replies: 61
Views: 7396

Direct Drive: Do I have enough torque?

Thanks guys Goombi, I do have AC in mind for a couple of reasons: regen. higher revs particularly on this motor seemed useful especially for direct drive, I might be wrong here though... high efficientcy. Little or no maintenance. I'm also impressed by the robustness and reliability (water sealing e...
by fuzzy-hair-man
Wed, 10 Dec 2008, 03:18
Forum: Technical and conversion discussion
Topic: Direct Drive: Do I have enough torque?
Replies: 61
Views: 7396

Direct Drive: Do I have enough torque?

...ie there is no mechanical advantage to slipping the clutch in fact it would waste energy as heat. Am I correct in this thinking? Yep. At 0kph the motor is 0rpm. There is no need to slip the clutch or even use it at take off. The only time you would want to use the the clutch is to change gears. ...
by fuzzy-hair-man
Tue, 09 Dec 2008, 21:36
Forum: Technical and conversion discussion
Topic: Direct Drive: Do I have enough torque?
Replies: 61
Views: 7396

Direct Drive: Do I have enough torque?

Hi, I'm toying with the idea of an electric mini using direct drive AC, and I was trying to work out how you decide if you have enough torque to take off. I figure that taking off in an ICE by slipping the clutch is just letting the revs stay at a level where the engine is producing enough torque to...
by fuzzy-hair-man
Fri, 05 Dec 2008, 01:11
Forum: General EV Discussion
Topic: Agassi's plan neglects Canberra
Replies: 8
Views: 883

Agassi's plan neglects Canberra

Canberra has the lowest population of a mainland capital city? Or does Darwin not count because we are only a Territory? :-) Cheers ACT = Australian Capital Territory http://forums.aeva.asn.au/smileys/smiley17.gif I think Canberra would be a good place to trial EVs too also because the ACT just vot...
by fuzzy-hair-man
Sun, 16 Nov 2008, 18:19
Forum: Technical and conversion discussion
Topic: Datsun 1200 ute conversion
Replies: 12
Views: 3133

Datsun 1200 ute conversion

I think your standard diff will be very zippy around town, but it will take you a fair while to get from 80-100kph, and you'll max out at about 115. A short diff from some other car (or custom) of about 3:1 will be a touch slower around town but a bit zippier on the highway. I think if you keep you...
by fuzzy-hair-man
Thu, 13 Nov 2008, 21:38
Forum: Technical and conversion discussion
Topic: Datsun 1200 ute conversion
Replies: 12
Views: 3133

Datsun 1200 ute conversion

Take what I said with a grain of salt because I'm guessing too http://forums.aeva.asn.au/smileys/smiley36.gif Does the 1200 utes with drums have a brake booster / vacunm brakes? I didn't think they did but you can take the disks and struts and master cylinder out a 120Y??? and put them in as a strai...
by fuzzy-hair-man
Wed, 12 Nov 2008, 17:14
Forum: Technical and conversion discussion
Topic: Datsun 1200 ute conversion
Replies: 12
Views: 3133

Datsun 1200 ute conversion

From what I can find out the AC55 has just over three times the peak torque of the A12 the datsun 1200 would have had originally http://forums.aeva.asn.au/smileys/smiley20.gif which I figure seeing as 1st gear in a 4 speed manual gearbox is 3.76 : 1 should probably give enough torque to go direct dr...