Search found 38 matches

by granada203028
Thu Aug 27, 2009 9:20 pm
Forum: Cars,Vans and other road vehicles
Topic: Got my donor car! MR2 mk2 G Limited
Replies: 83
Views: 64603

All those big fork lift motors must be capable of much higher peak powers, and higher continuous ones with suitable forced cooling. The modern pan cake motors are the best but at a price. The fork lift ones must still do 80% efficiency, so not that much worse than the 90% for the pancakes. The aircr...
by granada203028
Sun Jul 26, 2009 9:37 pm
Forum: Cars,Vans and other road vehicles
Topic: Affordable AC Drive?
Replies: 7
Views: 9727

According to the website it is about 55Kg. So 12KW continuous is nothing special. Surely it needs to turn a lot faster with more volts. I think the Testla motor runs up to 13,000 rpm.
by granada203028
Sun Jun 21, 2009 9:03 am
Forum: General
Topic: World first for Cedric Lynch!
Replies: 15
Views: 12254

I paid approx £4000 for the 7.5KWh standard type Lipo pack on my H100. 200 x 10Ah cells from www.batteryspace.com. These are rated at 2C max discharge so in theory could be high rate enough for a 1/2 hour race. They sell some bigger cells but the 10Ah had the best Ah/£.
by granada203028
Tue Jun 16, 2009 9:26 pm
Forum: General
Topic: World first for Cedric Lynch!
Replies: 15
Views: 12254

Yes well done Cedric and collegues. Interestingly, according to the TTXGP team profile, he used a large 16KWh battery of 63 Kokam lithiumpolymer cells and not the LiFeBatt cells often suggested for this hi rate application. This suggests he used the SLPB 60460330H 70Ah hi power cell. This is about t...
by granada203028
Thu Jun 04, 2009 8:38 pm
Forum: General
Topic: EV RACING ttxgp
Replies: 5
Views: 4849

Presumably other rules will get tougher, such as the qualifying time. Currently 50 mins equating to average speed of 45mph for the 37 miles.
by granada203028
Wed Apr 29, 2009 6:28 pm
Forum: Cars,Vans and other road vehicles
Topic: Affordable AC Drive?
Replies: 7
Views: 9727

So presumably it has a rare earth magnet rotor eg not induction?

The curve suggests it is Induction I guess as it "weak fields" at higher speeds.
by granada203028
Fri Apr 17, 2009 8:45 am
Forum: Cars,Vans and other road vehicles
Topic: Chevrolet Volt on News Night "Ethical man"
Replies: 6
Views: 11998

Chevrolet Volt on News Night "Ethical man"

A good report including a look at GM's battery lab. I think I spotted 16KWh 400 lbs on the pack rating plate!. 88Wh/Kg.
[url]http://www.bbc.co.uk/blogs/ethicalman/2009/04/check_out_our_second_film.html#comments[url][/url]
by granada203028
Mon Feb 23, 2009 10:33 pm
Forum: Electric Motor Bikes
Topic: Honda H100 project
Replies: 7
Views: 9907

Here are a few more pictures. I now have all the batteries 10S 20P 10Ah each so approx 7.5KWh total. Performance is now reasonable with the intended 300A limit. Although the initial get away still feels a little sluggish, acceleration is almost constant up to base speed around 40 mph. Above this the...
by granada203028
Thu Jan 01, 2009 8:54 pm
Forum: All things battery related
Topic: 7 off LCP90AHA for sale on eBay
Replies: 0
Views: 3164

7 off LCP90AHA for sale on eBay

I'm selling my LCPs I bought from Reap a year ago. See eBay: http://cgi.ebay.co.uk/Thunder-sky-Lithium-Ion-li-ion-90Ah-batteries-7-off_W0QQitemZ200294158461QQcmdZViewItemQQptZUK_ConsumerElectronics_Batteries_SM?hash=item200294158461&_trksid=p3911.c0.m14&_trkparms=72%3A1301%7C66%3A2%7C65%3A12...
by granada203028
Wed Dec 17, 2008 10:33 pm
Forum: General
Topic: inspection / registration / insurance
Replies: 2
Views: 3569

I went through the process a few weeks ago for a small motor bike conversion, and found it as above. I'm insured with Footman James. Bike is over 10 years old. If the Vehicle is younger an SVA test may then be required and I think SVA is going to be renamed something else. Local Bristol DVLA office ...

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