grepin Member 109 Member For: 18y 4m 2d Posted 07/04/07 04:45 AM Share Posted 07/04/07 04:45 AM Generally seems people are going for 19 inch rims and keeping 8 inch wide all round. I still have 17s and am thinking of going to 18s. I know 19s fill the guards better but cost is an issue. What I would find more important is to get 9 or 9.5 inch width on the rear for some big rubber. This is what I did in my Skyline days for traction. Hate to think what 235 or 245 tyres are like for traction on 300rwkw cars.Are people running wider tyres on the rears?What is the widest you can get on Ford 18x8s? Link to comment https://www.fordxr6turbo.com/forum/topic/33969-why-not-9-inch-wide/ Share on other sites More sharing options...
cobrav8 Member 1,969 Member For: 20y 1m 19d Gender: Male Location: New Zealand Posted 07/04/07 04:54 AM Share Posted 07/04/07 04:54 AM Generally - unless for drag racing, it is better to have the tyres the same width as the wheel - ie 245 is about 8 inches, so that the tyres are not overly wide for the wheel - and therefore flex while cornering more.Looking at the front of the falcon, you dont have much width to play with between the top arm and the guards - that is why people would not be going very wide. Link to comment https://www.fordxr6turbo.com/forum/topic/33969-why-not-9-inch-wide/#findComment-518579 Share on other sites More sharing options...
ROLMDL role model Member 1,111 Member For: 19y 2m 3d Gender: Male Location: Melbourne,S.E Posted 07/04/07 04:56 AM Share Posted 07/04/07 04:56 AM I have 19s but and I run 275/30/19s which is 9.5" rims on the backk Link to comment https://www.fordxr6turbo.com/forum/topic/33969-why-not-9-inch-wide/#findComment-518582 Share on other sites More sharing options...
grepin Member 109 Member For: 18y 4m 2d Posted 07/04/07 05:01 AM Author Share Posted 07/04/07 05:01 AM cobrav8 said: Generally - unless for drag racing, it is better to have the tyres the same width as the wheel - ie 245 is about 8 inches, so that the tyres are not overly wide for the wheel - and therefore flex while cornering more.Looking at the front of the falcon, you dont have much width to play with between the top arm and the guards - that is why people would not be going very wide.Yeah no worries so 245 is the go on 8 inchs. that's why I ran 8s and 9s on my Skyline. I had 255s on the rear and 235s on the front. This worked well. Just seems not may Ford guys seem to run with this. Maybe with traction control 245s are enough on the rear running big power. With my stock car it wants to loose traction now with only 235 factory tyre. Hate to think when I get more power. Link to comment https://www.fordxr6turbo.com/forum/topic/33969-why-not-9-inch-wide/#findComment-518584 Share on other sites More sharing options...
grepin Member 109 Member For: 18y 4m 2d Posted 07/04/07 05:07 AM Author Share Posted 07/04/07 05:07 AM Black ThundeR said: I have 19s but and I run 275/30/19s which is 9.5" rims on the backkthat's what I am talking about. Link to comment https://www.fordxr6turbo.com/forum/topic/33969-why-not-9-inch-wide/#findComment-518588 Share on other sites More sharing options...
ROLMDL role model Member 1,111 Member For: 19y 2m 3d Gender: Male Location: Melbourne,S.E Posted 07/04/07 05:09 AM Share Posted 07/04/07 05:09 AM ahahha they look tuff from behind Link to comment https://www.fordxr6turbo.com/forum/topic/33969-why-not-9-inch-wide/#findComment-518591 Share on other sites More sharing options...
ZAP No boost, no bottle, just my foot on the throttle! Lifetime Members 7,935 Member For: 21y 2m 29d Gender: Male Location: Sydney Posted 07/04/07 05:14 AM Share Posted 07/04/07 05:14 AM If upgrading your rims, it is a good idea to go with 9.5-10" rims. This will allow the 275 rubber, but most will need their guards rolled, especially if you go above 19".The main disadvantage is you cannot rotate your wheels, but most people running big power are changing their rears 3 times more than the fronts anyway. Link to comment https://www.fordxr6turbo.com/forum/topic/33969-why-not-9-inch-wide/#findComment-518592 Share on other sites More sharing options...
Turbo6man Lifetime Members 4,084 Member For: 22y 7m 3d Gender: Male Location: South Coast NSW Posted 07/04/07 05:15 AM Share Posted 07/04/07 05:15 AM cobrav8 said: Generally - unless for drag racing, it is better to have the tyres the same width as the wheel - ie 245 is about 8 inches, so that the tyres are not overly wide for the wheel - and therefore flex while cornering more.Looking at the front of the falcon, you dont have much width to play with between the top arm and the guards - that is why people would not be going very wide.205 tyres are the nearest to 8" (203.2mm). I don't think anyone would want to run 205s eh?235 (9.25") or 245 (9.65") are good tyres on an 8" rim - you need some sidewall outside your rim for protection (of the rim) and to compensate for tyre sidewall distortion when cornering. You would roll 205 tyres off your 8" rim first serious corner you came to.On the other hand if you put too wide a tyre on you will have the sidewalls pinching which causes premature tyre wear (centres) and also subjects the tyres to very possible sidewall splitting.Back to the Q though - there are quite a lot of guys on here who actually do run wider rims on the rear, usually 9" or 9.5". If you get rims with the correct offset you won't have clearance problems.One reason a lot of people choose not to run wider rims on the rear is because they prefer to be able to rotate their tyres for better wear. I guess it comes back to budget in one way or another. Link to comment https://www.fordxr6turbo.com/forum/topic/33969-why-not-9-inch-wide/#findComment-518593 Share on other sites More sharing options...
ROLMDL role model Member 1,111 Member For: 19y 2m 3d Gender: Male Location: Melbourne,S.E Posted 07/04/07 05:28 AM Share Posted 07/04/07 05:28 AM (edited) Black ThundeR said: ahahha they look tuff from behind I got a few pics sorry about the car beening dirty hehe Edited 07/04/07 05:29 AM by Black ThundeR Link to comment https://www.fordxr6turbo.com/forum/topic/33969-why-not-9-inch-wide/#findComment-518602 Share on other sites More sharing options...
turbo_nick some guy... Member 277 Member For: 22y 6m 29d Posted 07/04/07 05:39 AM Share Posted 07/04/07 05:39 AM grepin said: Yeah no worries so 245 is the go on 8 inchs. that's why I ran 8s and 9s on my Skyline. I had 255s on the rear and 235s on the front. This worked well. Just seems not may Ford guys seem to run with this. Maybe with traction control 245s are enough on the rear running big power. With my stock car it wants to loose traction now with only 235 factory tyre. Hate to think when I get more power.I guess there's a few reasons why more Falcon owners don't go for staggered sets. A lot of XR6T owners will never mod their cars, and will not push them very hard at all. That way they can rotate their tyres and get better mileage. At 240kw, the standard 235/45R17 or 245/40R18 are sufficient for day-to-day driving. A good tyre in those sizes (not the std SP3000s!) will handle the power a lot better. Well, in the dry... almost any tyre will be useless in the wet at even 8psi.Another reason is cost and availability. Wider, ie. less common sizes will tend to cost more money and be less readily available. Especially if you go to 19". A good 275/30R19 is anything but cheap and most shops won't keep it in stock. Also, people aren't concerned about how it drives these days. As long as it looks good they're happy. That's why Wanli, Clear, Antyre and Nankang are doing so well in the UHP segment.Personally, I'd love to run 245/40R18 front and 275/35R18 rear (not a huge fan of 235/40R18s on BAs) but I'm having issues locating a decent 275/35R18 at the right money. As soon as you deviate from the norm, tyre retailers will do their best to rip you off because the size isn't that common, and you just don't have any choices. Link to comment https://www.fordxr6turbo.com/forum/topic/33969-why-not-9-inch-wide/#findComment-518604 Share on other sites More sharing options...
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