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Re: BC BR Series Coilovers
[Re: Nigel]
#1547377
18/08/2015 14:31
18/08/2015 14:31
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Joined: Dec 2005
Posts: 9,706 Gone
Jimbo
Je suis un Coupé
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Je suis un Coupé
Joined: Dec 2005
Posts: 9,706
Gone
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Are there any piccies of the Gaz "max caster" topmounts that are available as an option on their coilovers? Edit - Gaz coilovers with Max-caster topmounts Just look at the extra offset on the topmounts to create the additional caster - its massively different to the BC topmounts Unfortunately that view seems to be looking at the front to rear view of the top mount so we don't see how far back they are, but to put it into perspective, to fit the Gaz max caster top mount, you had to shave metal from the rear of the suspension mounting top mount cut out in the chassis! I think Si (Suba) had them fitted to his coupe so could contribute to the mounting of them. I did a little calculation, you'd have to lower the suspension approximately 6" to get a 1' shift in caster. I'm no mafs eggspurt but I think I got it right. It would sure look bad ass but you'd be going through a new exhaust every day.
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Re: BC BR Series Coilovers
[Re: Jimbo]
#1547393
18/08/2015 16:35
18/08/2015 16:35
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Joined: Dec 2005
Posts: 17,370 Staffordshire
Nigel
Forum veteran
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Forum veteran
Joined: Dec 2005
Posts: 17,370
Staffordshire
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Oh wait, the damper on the right has the other view, you can see the caster quite clearly. Agreed - the centre line of the damper rod is WAY behind the centre line of the topmount on the Gaz kit I've chased Balance Motorsport by email today to get them to chase the BC factory for an update In the meantime, I thought I'd do some more research to see if anyone else is having issues with BC Lancer boys aren't impressed - check out the photo part way down the page Sadly, it appears not to be an isolated incident.... Fairly old thread though, so I guess BC have sorted the issue by now?
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Re: BC BR Series Coilovers
[Re: Trappy]
#1547540
20/08/2015 14:50
20/08/2015 14:50
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Joined: Dec 2005
Posts: 17,370 Staffordshire
Nigel
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Forum veteran
Joined: Dec 2005
Posts: 17,370
Staffordshire
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UPDATE - I've had a response from Balance - they have supplied me with a technical drawing of the BC topmounts and suggested that I should tell them what changes need to be made, and they will look into having some made.
I think this is a good point for me to hand this line of enquiry over to one of the BC coilover customers - I really don't want to be acting as middle-man if I can help it
Any volunteers?
DOH! - Not Balance - Apex
Last edited by Nigel; 21/08/2015 16:23. Reason: wrong company.....
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Re: BC BR Series Coilovers
[Re: Jimbo]
#1547626
21/08/2015 16:24
21/08/2015 16:24
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Joined: Dec 2005
Posts: 17,370 Staffordshire
Nigel
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Forum veteran
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Posts: 17,370
Staffordshire
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I thought you were interested in buying a set Nigel?
I was, but I'll wait until the issues have been addressed (or I'll bite the bullet and go for the Gaz setup)
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Re: BC BR Series Coilovers
[Re: Trappy]
#1547631
21/08/2015 17:53
21/08/2015 17:53
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Joined: Dec 2007
Posts: 2,252 Windsor/ Reading
knight7660
Competition Level
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Competition Level
Joined: Dec 2007
Posts: 2,252
Windsor/ Reading
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with the Gaz kit dont you have to modify the chassis at some point like the D" kit which is what put me off.
reading the evo post has made me think twice about ordering the fronts now
LE53 (452BHp & 389ftlb's with Quaife) Wine red VIS FOOFY Audi RS4 B7
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Re: BC BR Series Coilovers
[Re: Trappy]
#1547659
22/08/2015 18:22
22/08/2015 18:22
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Joined: Dec 2007
Posts: 2,252 Windsor/ Reading
knight7660
Competition Level
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Competition Level
Joined: Dec 2007
Posts: 2,252
Windsor/ Reading
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such a shame i dont want to cut mine if i can help it. Hope the issues with the BC's are solved
LE53 (452BHp & 389ftlb's with Quaife) Wine red VIS FOOFY Audi RS4 B7
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Re: BC BR Series Coilovers
[Re: Trappy]
#1547712
24/08/2015 08:41
24/08/2015 08:41
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mihai7645
Unregistered
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mihai7645
Unregistered
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So what would the risk be if I mount the BC kit that I've recently got? I've posted a pic with the top mounts and they are asymmetrical.
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Re: BC BR Series Coilovers
[Re: Jimbo]
#1547944
28/08/2015 10:02
28/08/2015 10:02
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Joined: Feb 2006
Posts: 5,408 Essex
Trappy
OP
Forum is my life
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OP
Forum is my life
Joined: Feb 2006
Posts: 5,408
Essex
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Would less castor cause more torque steer?
F****** b****** thing...
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Re: BC BR Series Coilovers
[Re: Trappy]
#1547953
28/08/2015 11:41
28/08/2015 11:41
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Joined: Dec 2005
Posts: 17,370 Staffordshire
Nigel
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Forum veteran
Joined: Dec 2005
Posts: 17,370
Staffordshire
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Would less castor cause more torque steer? I don't believe so, although less caster makes the self-centring effect less pronounced, which means you can FEEL the torque-steer more easily Torque steer is caused by many things, but is rooted in a difference of grip between the driven wheels (which could be tyre deflection, surface, driveshaft twisting, geometry etc) I guess the only time caster could affect torque-steer is if the caster was different on each side
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Re: BC BR Series Coilovers
[Re: Jimbo]
#1548007
28/08/2015 23:22
28/08/2015 23:22
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Joined: Feb 2006
Posts: 5,408 Essex
Trappy
OP
Forum is my life
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OP
Forum is my life
Joined: Feb 2006
Posts: 5,408
Essex
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Confirmed then. It's definitely squirming and pulling on uneven surfaces now since fitting these coilovers.
F****** b****** thing...
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Re: BC BR Series Coilovers
[Re: Trappy]
#1548018
29/08/2015 06:14
29/08/2015 06:14
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Joined: Dec 2005
Posts: 17,370 Staffordshire
Nigel
Forum veteran
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Forum veteran
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Posts: 17,370
Staffordshire
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With Positive caster, road surface variations have a minimal effect on the tire, the tire will continue to go straight. When a tire has a Negative caster condition, where the projected steering axis point of load is behind the tire point of contact, a vehicle will have a tendency to be easier to steer but will lack directional stability. A vehicle with negative caster is affected by any road surface variation such as small road irregularities or bumps. You have about 2.5 degrees positive caster, so you shouldn't really be getting any caster-related squirming - does it happen on and off the power and on a steady throttle?
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