Search found 19 matches

by Haakon
Fri, 25 Jul 2008, 20:21
Forum: Technical and conversion discussion
Topic: My dilemma: Car choice
Replies: 16
Views: 2560

My dilemma: Car choice

Motors in front wheel drive cars dont have to in sideways! Get a rear diff from a Subaru or Commode (or your car of choice that had rear drive and independant suspension) and mount it right onto the motor. Ususally enough room forwards of the front axle line for the assembly. Its how I will do my co...
by Haakon
Fri, 25 Jul 2008, 17:08
Forum: General EV Discussion
Topic: recharging standards and other questions
Replies: 7
Views: 1449

recharging standards and other questions

we should keep an eye on this too - hopefully Vicroads will go soem way to addressign this if Bulletin 14 ever gets updated, but if there are standards anyway it would go a long to the credibility of EV conversions in general if these things are done right! http://www.sae.org/servlets/productDetail?...
by Haakon
Fri, 25 Jul 2008, 17:03
Forum: General EV Discussion
Topic: recharging standards and other questions
Replies: 7
Views: 1449

recharging standards and other questions

I believe the SAE mob in the US have done some work on establishign global standards

http://www.sae.org/technical/standards/J2293/1_200807
by Haakon
Thu, 24 Jul 2008, 18:20
Forum: General EV Discussion
Topic: ev bike licence
Replies: 6
Views: 1439

ev bike licence

I think in Victoria its on Watts of power (50 i think)- very small petrol motors escape licensing requirement. I would suggest a motorcycle converted with motorcycle performance will need one - a battery powered pushbike probably wont.
by Haakon
Tue, 22 Jul 2008, 22:22
Forum: General EV Discussion
Topic: Gearbox Vs Motor Peak Efficiency
Replies: 15
Views: 1909

Gearbox Vs Motor Peak Efficiency

Another way to look at it is what are the inefficicies in running an engine that at its weakest rev range still produces enough for that situation, and is hence under utilised/throttled back in other loads/speeds? ICE engines are more efficient at higher loads, which is why a small engine worked har...
by Haakon
Tue, 22 Jul 2008, 20:23
Forum: General EV Discussion
Topic: Gearbox Vs Motor Peak Efficiency
Replies: 15
Views: 1909

Gearbox Vs Motor Peak Efficiency

Would depend I imagine on how flat the power/tirque curves are. As I understand it, the curves are not nearly as peaky, hence the gains to be had from multiple drive ratios keeping the engine in a particular rev range are not as marked. However, the curve is not completly flat, so there is scope for...
by Haakon
Tue, 22 Jul 2008, 20:18
Forum: General EV Discussion
Topic: First EV
Replies: 31
Views: 3843

First EV

least the Magna might finally be of some use on the roads. Dont knock the Mags too much - they have plenty of uses. I bought my Mum one because they live on rough roads and have lots of dogs. They killed the nice Renault I gave them, so I got them a Magna this time because i wont care when it trash...
by Haakon
Mon, 21 Jul 2008, 13:38
Forum: Technical and conversion discussion
Topic: Power steering?
Replies: 6
Views: 2688

Power steering?

Power steering is dead easy to keep - just strap this onto any hydraulic OE system; http://cgi.ebay.com.au/Vauxhall-Astra-Power-Steering-Pump_W0QQitemZ160261719630QQihZ006QQcategoryZ10404QQrdZ1QQssPageNameZWD2VQQcmdZViewItemQQ_trksidZp1638Q2em122 Pick one up locally at any Holden wrecker http://foru...
by Haakon
Sat, 19 Jul 2008, 22:12
Forum: General EV Discussion
Topic: First EV
Replies: 31
Views: 3843

First EV

Good list of cars and their figures here;

http://en.wikipedia.org/wiki/Automobile ... efficients

Seems the humble Magna is very good when it comes to drag!! Although not so hot at the drags....
by Haakon
Sat, 19 Jul 2008, 20:21
Forum: General EV Discussion
Topic: First EV
Replies: 31
Views: 3843

First EV

I dont think the Mini need be too bad, and could possibly be made better with not too much trouble. The point with my Renault example is that details can make a big difference to what is initially not the best shape. One thing the Mini does have in its favour is a clean belly - nice and flat. The un...
by Haakon
Sat, 19 Jul 2008, 18:27
Forum: General EV Discussion
Topic: First EV
Replies: 31
Views: 3843

First EV

Not many cars at with spoilers that are actually functional. Bugatti Veyron has a good one, as do assorted Porsches and such. But your typical Fordolden etc is there for fashion only. If you see a car with a little lip type spoiler thats otherwise sutble on the back its probably there to help aerody...
by Haakon
Sat, 19 Jul 2008, 00:43
Forum: General EV Discussion
Topic: Auto trans?
Replies: 14
Views: 1964

Auto trans?

T The more I think about this the more I come to realise there is no right or wrong way of doing things, only ways that suit your desired outcome a little more favourably. Thats for sure! Its got to be one the of best things about this caper - figuring out how to put it together from scratch http:/...
by Haakon
Sat, 19 Jul 2008, 00:23
Forum: General EV Discussion
Topic: Auto trans?
Replies: 14
Views: 1964

Auto trans?

No doubting the C4s heritage - just being a smartarse :) The reno box is good, but it was also designed for 4 pot motors - the huge torque of a big electric motor would snap it in fairly short order, especially with a heavy right foot!! The american trans would no good though as its a FWD car! I thi...
by Haakon
Fri, 18 Jul 2008, 22:24
Forum: General EV Discussion
Topic: Auto trans?
Replies: 14
Views: 1964

Auto trans?

Renault actually make pretty strong boxes, and strong cars (an indestructable ICE motors) - dont let those rumours of funny french cars tell you otherwise :) Better built than your average Ford thats for sure!! The biggest problem french cars have here is a lack of mechanical skills to deal with sli...
by Haakon
Thu, 17 Jul 2008, 17:25
Forum: EV Racing
Topic: EV Rally
Replies: 6
Views: 2046

EV Rally

I have been pondering this too - if it can be built with the range needed, an EV would be verywell suited to rally i think. Heaps of lowdown torque for quick exits (no stuffing about with ICE turbo boost control!!), the ability to a motor at each end and the array of things that clever software coul...
by Haakon
Thu, 17 Jul 2008, 01:33
Forum: General EV Discussion
Topic: Auto trans?
Replies: 14
Views: 1964

Auto trans?

Thanks guys. Sorry for the extremely noob questions - should do my homework a bit better beforehand http://forums.aeva.asn.au/smileys/smiley9.gif I would build this with performance and keeping the car looking and feeling as stock as possible. If I can get motor that will provide the revs and power ...
by Haakon
Wed, 16 Jul 2008, 22:46
Forum: General EV Discussion
Topic: Auto trans?
Replies: 14
Views: 1964

Auto trans?

Due to the slightly unusual design of the transmission (it is French http://forums.aeva.asn.au/smileys/smiley36.gif ) i would be able to easily modify transfer gears in the final drive assembly to give a ration of 1.1 or even higher. 1000rpm of the engine in a 0.75 transmission will give about 160kp...
by Haakon
Wed, 16 Jul 2008, 22:16
Forum: General EV Discussion
Topic: Auto trans?
Replies: 14
Views: 1964

Auto trans?

Right. I think top is a 1.1 ratio and the final drive is something like 3.1-1, but will have to confirm. Tyres are 195/60-15 - does about 3100rpm in top at 100kph. This of course highlights some more key questions i need to answer - operating rpm range of the electric motor!! Only 1000rpm?? Guess i ...
by Haakon
Wed, 16 Jul 2008, 21:27
Forum: General EV Discussion
Topic: Auto trans?
Replies: 14
Views: 1964

Auto trans?

Hey all - pondering a future project, which may involve converting my beloved Renault 25 to electric. It was always going to be restored as it is a way cool car that i am very fond of, but it needs a ground up resto. Seems the perfect oppurtunity to convert while its all in bits anyway http://forums...