BC Racing coil over kit for XKR
#1
BC Racing coil over kit for XKR
While yet again revisiting lowering my XKR (now that I have new wheels, somehow the gap has increased to 2-inches, not a good look) I came across these for only $995, anyone familiar with them?
2007 2015 Jaguar XK XKR Racing BR Series Coilovers lowering Set Coils Kit New | eBay
2007 2015 Jaguar XK XKR Racing BR Series Coilovers lowering Set Coils Kit New | eBay
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User 070620 (03-23-2015)
#2
#3
Don't know if it supports CATS if not for many that would be a deal breaker. However in my case I disabled it about a year ago and haven't looked back.
But if the product sucks then it doesn't matter at all.
I've had Bilstein coil overs and they didn't cost nearly the price you quoted so not sure why they have them priced that high.
But if the product sucks then it doesn't matter at all.
I've had Bilstein coil overs and they didn't cost nearly the price you quoted so not sure why they have them priced that high.
#4
While yet again revisiting lowering my XKR (now that I have new wheels, somehow the gap has increased to 2-inches, not a good look) I came across these for only $995, anyone familiar with them?
2007 2015 Jaguar XK XKR Racing BR Series Coilovers lowering Set Coils Kit New | eBay
2007 2015 Jaguar XK XKR Racing BR Series Coilovers lowering Set Coils Kit New | eBay
#5
#6
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The suspension and tyres work together to achieve a balance, so it may be best to select a tyre/brake/wheel/suspension combination that suits what you need for your particular style of driving. If the vehicle is being subjected to racing conditions, the more available adjustments, the better to find the handling balance.
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jahummer (03-17-2015)
#7
What are you attempting to accomplish with this modification? Is it appearance or a change in handling?
The suspension and tyres work together to achieve a balance, so it may be best to select a tyre/brake/wheel/suspension combination that suits what you need for your particular style of driving. If the vehicle is being subjected to racing conditions, the more available adjustments, the better to find the handling balance.
The suspension and tyres work together to achieve a balance, so it may be best to select a tyre/brake/wheel/suspension combination that suits what you need for your particular style of driving. If the vehicle is being subjected to racing conditions, the more available adjustments, the better to find the handling balance.
I also shed about 80 pounds in unsprung weight with lighter and wider rims. I wouldn't mind better handling either for the ocassional track day. I've also considered going from the stock 27" diameter tire to a 28" diameter but not sure how much of a difference that would make.
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#8
OK I must admit this thread has me a little confused . From what I got from the OP it appears the rims and tires were replaced. I had assumed that the rim dia. stayed the same at 20" and even though they were wider they were still 20". Next the tires were replaced but if they were the same diameter there should have not been any difference in the overall height of the wheel/tire from the OEM rim/tire. Now if you went to a different size rim and tire do I assume you kept the overall Cir/diameter the same? If so then there should be no difference in the gap from the tire to the fender. So what am I missing and if you change overall tire height how did you alter the speedometer .
#9
Sorry if my post was confusing. The primary purpose was to see if anyone was familiar with these coil over kits.
I don't know why I gained a half inch of clearance. Same tires just wider diameter rims. As far as the speedometer I don't think that would mater. If the factory spec is 27" they are going to end up getting smaller with wear so if they start with a slightly larger diameter they will wear into spec anyway.
I don't know why I gained a half inch of clearance. Same tires just wider diameter rims. As far as the speedometer I don't think that would mater. If the factory spec is 27" they are going to end up getting smaller with wear so if they start with a slightly larger diameter they will wear into spec anyway.
#10
Sorry if my post was confusing. The primary purpose was to see if anyone was familiar with these coil over kits.
I don't know why I gained a half inch of clearance. Same tires just wider diameter rims. As far as the speedometer I don't think that would mater. If the factory spec is 27" they are going to end up getting smaller with wear so if they start with a slightly larger diameter they will wear into spec anyway.
I don't know why I gained a half inch of clearance. Same tires just wider diameter rims. As far as the speedometer I don't think that would mater. If the factory spec is 27" they are going to end up getting smaller with wear so if they start with a slightly larger diameter they will wear into spec anyway.
#11
Tire wear is not an issue with the speedo but tire circumference or inflated tire diameter is. Wider rims don't affect tire diameter. Usually when you go to +1 or +2 tire size you change the aspect ratio to keep the same tire diameter. Look at Tirerack for your OEM tire size and then look at the spec's for that tire. It will tell you diameter and if you go for the next size tire and change the aspect ratio then the tires OD will be the same and your ride height won't change. So a 225/50-18 is the same as a 225/45/19 and a 255/30-21 These are all 27" in diameter +/- a hair which should not induce a speedo error. So if you kept the same tire size except for the aspect ratio I can see you having increased the gap.
Hope that helps.
#12
I got it that you were talking about suspensions but where I got side tracked was with the gap after you changed wheels and tires. You didn't mention that you change any suspension components yet but after the tire change you got a larger gap. A wider rim would not change the gap unless you put on a smaller tire. Did you do anything with the suspension yet?
#13
#14
I got it that you were talking about suspensions but where I got side tracked was with the gap after you changed wheels and tires. You didn't mention that you change any suspension components yet but after the tire change you got a larger gap. A wider rim would not change the gap unless you put on a smaller tire. Did you do anything with the suspension yet?
#15
The tires are the original factory spec for 20" XKRs. The wider rims now give them that slightly stretched look with angled sidewalls. If the tire is steel belted, I understand that diameter is NOT affected by rim width.
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jahummer (03-17-2015)
#17
#18
OK I just went out to the garage to look at mine and it looks about the same . I didn't measure it but it looks good to me. What tires are you running. My rears are 285/35-20. With the roads around here I won't want to lower mine any more then it is. Good luck in what you are looking for.
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jahummer (03-17-2015)
#19
OK I just went out to the garage to look at mine and it looks about the same . I didn't measure it but it looks good to me. What tires are you running. My rears are 285/35-20. With the roads around here I won't want to lower mine any more then it is. Good luck in what you are looking for.
Last edited by jahummer; 03-17-2015 at 11:50 PM.
#20
Yours should be 255/35 in the front and 285/30 in the rear, like mine. If you have the same gap as I, don't you think it looks kind of out of proportion, like it is jacked up? Maybe if the tires were spec'd with taller sidewalls/larger diameter it would not look so bad. Other performance cars like Porsche, etc have 20" wheels with 28"+ diameter tires and they look a lot better proportion wise, IMHO.