Llecentaur
Posts: 239
Joined: Thu Dec 27, 2012 7:56 am

Re: How to fix under steer

Fri Jan 25, 2013 4:38 am

I think Rinspeed has made a sporty version of iMiev. From memory the wheels looked the same witdh.

Here is a video

http://www.youtube.com/watch?v=zAcl5l7OhiU&feature=youtube_gdata_player

Llecentaur
Posts: 239
Joined: Thu Dec 27, 2012 7:56 am

Re: How to fix under steer

Mon Feb 04, 2013 11:38 am

Quick question,

If you look at those front wheels, their angle with floor is not 90 but something like 95, meaning that once the car is in a curve the wheel might have a better and flat contact with the Tarmac.

Do you agree with this and is this a matter of standard tuning or does one have to change a piece of the front drive ?

Thanks

Don
Site Moderator
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Location: Biloxi MS

Re: How to fix under steer

Mon Feb 04, 2013 12:46 pm

I think those are Works wheels - Very light, very expensive

Yes, the fronts are decambered a bit - It's an adjustment of the suspension. The car is rear wheel drive though

Don
2012 iMiEV SE Premium, White
2012 iMiEV SE, White
2014 Ford Transit Connect XLT SWB wagon, 14,000 miles
1994 Miata 60K miles - Soon to be sold
1979 Honda CBX six into six

Llecentaur
Posts: 239
Joined: Thu Dec 27, 2012 7:56 am

Re: How to fix under steer

Mon Feb 04, 2013 2:21 pm

Thanks Don, i Will ask my garage to December the front wheels very slightl, as long as it does not harm efficiency.

Rinspeed gave me the adress of their supplier for those wheels. If anyone is interested I can enquire, but I also feel that they must be very expensive.

alohart
Posts: 377
Joined: Wed Apr 25, 2012 10:15 am
Location: Honolulu, HI, and Uppsala, Sweden

Re: How to fix under steer

Mon Feb 04, 2013 8:15 pm

Llecentaur wrote:Rinspeed gave me the adress of their supplier for those wheels. If anyone is interested I can enquire, but I also feel that they must be very expensive.

I wonder whether Rinspeed used the same size wheels and tires front and back. If so, what wheel diameter, width, and offset and what tire size did Rinspeed use?
Aloha,
Art
Honolulu: 2014 BMW i3 BEV (formerly 2012 i-MiEV SE)
Uppsala, Sweden: 2000 Honda Insight

Llecentaur
Posts: 239
Joined: Thu Dec 27, 2012 7:56 am

Re: How to fix under steer

Tue Feb 05, 2013 2:20 am

I think they are the same size back and front.

Will try and contact wheel supplier later this week. If we can have the dimensions and offset, at least we should be able to source them elsewhere, or who knows maybe the ones from the supplier are still available.

Llecentaur
Posts: 239
Joined: Thu Dec 27, 2012 7:56 am

Re: How to fix under steer

Fri Feb 08, 2013 2:41 am

OK, I got the specs of the alloy wheels you see in the Rinspeed video.

They are actually 17" wheels from Works, model is Schwert SC1. Front is 5.5" and back 6.5", I could not get my hand on the the ET values. I know that they have a homologation for the iMieV in Switzerland.

My idea is that once we have all the technical data, it should be possible to also find other brands with the same fitting. Must say that those wheels are beautiful but out of any logical price for the iMiev (quoted over 800 USD on list price... per wheel).

Maybe someone can enquite about these wheels as the manufacturer seems to be US ?

Thanks

Don
Site Moderator
Posts: 2464
Joined: Thu May 10, 2012 3:55 pm
Location: Biloxi MS

Re: How to fix under steer

Fri Feb 08, 2013 10:47 am

They are available in the USA for $465 in size 16 X 5.5 and $475 for 16 X 6.0. I didn't see any 17's narrower than 6.0 and I really doubt that the Rinspeed iMiEV is actually wearing 17's - They sure don't look THAT big to me . . . .

Four of the 16 X 5.5's wearing the same size tire would be a great upgrade, IMO - Considering that the factory wheels are only 4 inches wide in front and 5 inches in the rear . . . . no real need to go to 6 inch wheels

One downside is of course that you're never going to find any LRR's (Low Rolling Resistance tires) in those sizes . . . . but then I seriously doubt that the folks at Rinspeed are at all worried about the reduction in range these wheels/tires probably cause - Sticky, great handling tires are on the opposite end of the tire spectrum from LRR's. Small price to pay for the big increase in handling

Don
2012 iMiEV SE Premium, White
2012 iMiEV SE, White
2014 Ford Transit Connect XLT SWB wagon, 14,000 miles
1994 Miata 60K miles - Soon to be sold
1979 Honda CBX six into six

jray3
Posts: 1353
Joined: Tue Dec 06, 2011 1:05 am
Location: Tacoma area, WA
Contact: Website

Re: How to fix under steer

Fri Feb 08, 2013 7:39 pm

Don wrote:They are available in the USA for $465 in size 16 X 5.5 ........................ Small price to pay for the big increase in handling
Don

Go for it Don- we long to follow your leadership!
:twisted:
2012 i-SE "MR BEAN" 70,000 miles
i-ES traded at 21,648 miles
2000 Honda Odyssey
1987 F250 Diesel
1983 Grumman Kurbwatt,170 kW, 32 kWh
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1971 "Karmann Eclectric" EV 240 kW 19 kWh
1965 Karmann Ghia Cabriolet

Don
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Re: How to fix under steer

Fri Feb 08, 2013 9:03 pm

jray3 wrote:
Don wrote:They are available in the USA for $465 in size 16 X 5.5 ........................ Small price to pay for the big increase in handling
Don

Go for it Don- we long to follow your leadership!
Boy! - Talk about quoting me out of context :lol:
The 'small price to pay' was the couple percent of range lost by not using LRR tires!

Don
2012 iMiEV SE Premium, White
2012 iMiEV SE, White
2014 Ford Transit Connect XLT SWB wagon, 14,000 miles
1994 Miata 60K miles - Soon to be sold
1979 Honda CBX six into six

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