3000m wide arches

3000m wide arches

Author
Discussion

hallsie

2,184 posts

220 months

Monday 3rd February 2014
quotequote all
madsvlund said:
My home made, "semi wide", 1" wider than stock
Im noticing youre spacers on the hub, did you have these made?

Im in need of some 20mm spacers and collared bolts if you know where I can get some?

Stu

madsvlund

345 posts

132 months

Monday 3rd February 2014
quotequote all
Hi Stu

I run Bmw E39 hubs with 5x120, so I can use std bmw spacers.

If you want to just space your 4x108 you can use something like this
http://www.ebay.co.uk/itm/24mm-Hubcentric-Spacers-...

If you want to alter from 4x108 to eg 4x100 this type can be used
http://www.ebay.co.uk/itm/hubcentric-spacers-4x108...

and you can even find them in 4 to 5 stud conversions
http://www.ebay.co.uk/itm/Set-Of-Four-4x100-to-5x1...

Cerberus90

1,553 posts

213 months

Tuesday 4th February 2014
quotequote all
Although the Taimar is 4x114.3, so those Ford ones won't fit.

Should be able to find some 114.3 spacers though as a lot of the Japanese stuff uses the same PCD.

alphaone

1,019 posts

173 months

Tuesday 4th February 2014
quotequote all
One of my Subarus has 100 the other newer one has 114.3

http://www.wheelfitment.net/subaru

my250gt

628 posts

219 months

Tuesday 4th February 2014
quotequote all
Slow M said:
A few more, for good measure:




Best,
B.
oh yes , where can i get a set of those! love em...yes

Slow M

2,737 posts

206 months

Tuesday 4th February 2014
quotequote all
I think Hall Pantera sell them, but the body contours will be an issue. You may have to wait until I make some, and pull molds from them.

Best,
B.

Slow M

2,737 posts

206 months

Tuesday 4th February 2014
quotequote all
alphaone said:
One of my Subarus has 100 the other newer one has 114.3

http://www.wheelfitment.net/subaru
Cerberus90 said:
Although the Taimar is 4x114.3, so those Ford ones won't fit.

Should be able to find some 114.3 spacers though as a lot of the Japanese stuff uses the same PCD.
You may be better off having a machinist cut some for you. Wost wheels are hub-centric, and the TR6 hub centers don't project very far. By the time you add a 7-8mm spacer . . .

Best,
B.

madsvlund

345 posts

132 months

Tuesday 4th February 2014
quotequote all
Most spacers above 15mm are hubcentric

Like this set on ebay
http://www.ebay.co.uk/itm/Ultralight-25mm-Bolt-On-...

http://www.ebay.co.uk/itm/2-x-6mm-Hubcentric-Wheel...


But remember to measuer the center diameter and verify they match.

Nissan seems to run 66.1 mm center bore
http://www.ebay.co.uk/itm/Hubcentric-Bolt-On-Wheel...

prideaux

4,969 posts

149 months

Tuesday 4th February 2014
quotequote all
Is it just me but i would feel uncomfortable about fitting spacers of any size a few mm yes but that size i am unsure noidea why
Can any of the experts fill us in here as to how they effect a cars ride etc
Andrew

Slow M

2,737 posts

206 months

Tuesday 4th February 2014
quotequote all
madsvlund said:
. . .But remember to measuer the center diameter and verify they match.
That being my point.
madsvlund said:
Nissan seems to run 66.1 mm center bore
http://www.ebay.co.uk/itm/Hubcentric-Bolt-On-Wheel...
That model (S13 or S14) was the hub donor, for my car. I think the center diameter is different.

Best,
B.

Cerberus90

1,553 posts

213 months

Tuesday 4th February 2014
quotequote all
prideaux said:
Is it just me but i would feel uncomfortable about fitting spacers of any size a few mm yes but that size i am unsure noidea why
Can any of the experts fill us in here as to how they effect a cars ride etc
Andrew
Few quick thoughts based on what I've read/seen people talking about on mini spacers and other stuff.

Pushing the wheel out, possibly moving the contact patch on the tyre towards the inside of the tyre.

I know on the mini it can cause the wheel bearing to wear quicker, especially on the big 13" wheels, but that might just be because the mini hub/bearings etc are at there limit already. Whereas the stuff on the TVR was originally on a heavier car, so may have better longevity anyway.

I believe it can also make tramlining worse. Maybe bump steer, but I'm not sure on that, can't visualise how it would effect it as the rack and TREs etc are still in the same place.

Bit of reading would suggest a wider front track can help turn-in, due to weight transfer stuff, but I doubt you'd notice on a road car.


Obviously the bigger you go, the more pronounced the effects will become.

Edited by Cerberus90 on Tuesday 4th February 20:23

Slow M

2,737 posts

206 months

Tuesday 4th February 2014
quotequote all
As far as bearing wear is concerned, the idea is to center the contact patch under the bearings.

Re: spacers -upgraded hardware helps. I think there was something on Arthur's (catfish) build thread.

Best,
B.

madsvlund

345 posts

132 months

Tuesday 4th February 2014
quotequote all
A few geometric points on reducing ET (adding spacers or using rim's with a lower ET number.)

In general chamber and caster wont be affected, load on bushings will increase and the added flex will chance chamber, but in a negligable level. So don't worry on contact path, tyre load etc.

Bearing load will increase slightly on the outher bearing and rediuce slightly on the inner bearing, but don't worry, bearings are dramatically over designed in terms of load caracteristics, dynamic load range is around 3,5 ton per bearing where we are running around 150-200 kg per bearing. Wear will ofcause be sligthly affected, but again dont worry.

Major drawback is scrub radius on the front wheels. The triumph trunninon design do run with a scrub radius of 2" (distance from center of tyre to the revolving axis of the steering line's point on the ground) by offsetting the wheels will the scrub radius increase, and there by will the negative effect allso increase. The major problem is the tendency of unequal load on the front tyres will "pull the steering" , a little is ok in terms of informing the driver of skid'ing front wheels, lost traction etc, but too mutch will make the car dificult to control. A positive camber setting can have the same effect, just driving in the "truck tracks" on the highway can be a pain.
Modern cars run with very little and even negative scrub radius, mainly for safety reasons. But on out old cars, keep the front track as low as possible, and use as much negative chamber as possible (not more than -2 to -3 deg).


Bump steer is not affected by wider track, but the effect of increased scrub and the effect of too much bump steer feel quite similar from the drivers point of view.

On the rear will the busing flex and load increase, and thus give more flex in terms off toe,in under acceleration, but the TVR rear end is quite well designed so I don't thing it reaaly get's to a problem. My car is perfect on the rear (even the driver have problems controlling 250+ horses, short wheel base, LSD and wide tyres on a cold foggy morning. But it for sure wakes him up :-)



phillpot

17,116 posts

183 months

Tuesday 4th February 2014
quotequote all
prideaux said:
i would feel uncomfortable about fitting spacers of any size a few mm yes
You'd have loved the spacers on this abortion then......must have been 6" + !!!!



Slow M

2,737 posts

206 months

Wednesday 5th February 2014
quotequote all
madsvlund said:
. . . My car is perfect on the rear (even the driver have problems controlling 250+ horses, short wheel base, LSD and wide tyres on a cold foggy morning. But it for sure wakes him up :-)
Better than coffee, huh? biggrin

Best,
B.

griffer500

57 posts

122 months

Thursday 2nd October 2014
quotequote all
http://www.autogespot.nl/tvr-vixen-s1/2014/10/02#i...
Not a 3000M but a Vixen. But oh boy, what a ugly arches on this car.

GTRene

16,543 posts

224 months

Thursday 2nd October 2014
quotequote all
they have to fit really wide wheels/tires in those arches, then it looks better, this how it is in the pictures certainly not.

thegamekeeper

2,282 posts

282 months

Friday 3rd October 2014
quotequote all
GTRene said:
they have to fit really wide wheels/tires in those arches, then it looks better, this how it is in the pictures certainly not.
Volslagen vandalisme

GTRene

16,543 posts

224 months

Friday 3rd October 2014
quotequote all
biggrin

yes, but if they leave it like that, with those 'inboard' wheels and to much over flares it looks silly.

prideaux

4,969 posts

149 months

Friday 3rd October 2014
quotequote all
griffer500 said:
http://www.autogespot.nl/tvr-vixen-s1/2014/10/02#i...
Not a 3000M but a Vixen. But oh boy, what a ugly arches on this car.
Please shoot the creator
A