Evil F6 Donating Members 830 Member For: 19y 1m 14d Gender: Male Location: Sydney Posted 01/02/07 10:40 PM Share Posted 01/02/07 10:40 PM Personally, I don't see the advantage of running a narrower tyre than standard with the 225's? I have 245/30-20 on the front - 8.5" wide wheel275/35-20 on the rears - 9.5" wheel←Wow, your gearing would be way out with that size rear. To maintain rolling diameter on the F6, I had to use a 275/30 19, and you have a 20 with a 35 profile. You would have a much larger rolling diameter, being about 10% out I'd say, You really need a 275/25. You front tyre has the right profile though for a 20, on a 19 you need a 245/35. Link to comment Share on other sites More sharing options...
F6 RAPID Formerly Turbo6 Donating Members 2,332 Member For: 22y 1m 15d Location: North Brisbane Posted 01/02/07 10:48 PM Share Posted 01/02/07 10:48 PM It is out don't worry about that - about 5% I believe. It really shows up on dyno pulls - the difference between the 20's and the standard 18's.Don't worry, it has enough power to make up the gearing difference. Link to comment Share on other sites More sharing options...
Evil F6 Donating Members 830 Member For: 19y 1m 14d Gender: Male Location: Sydney Posted 01/02/07 10:51 PM Share Posted 01/02/07 10:51 PM It is out don't worry about that - about 5% I believe. It really shows up on dyno pulls - the difference between the 20's and the standard 18's.Don't worry, it has enough power to make up the gearing difference. ←I don't doubt the power is an issue, but the speedo error would be high or can you get that fixed with edit. LS1 edit allows you to enter diff ratio and tyre sizes, do Flash tuner allow this? Link to comment Share on other sites More sharing options...
PDIDDY Senior Member Member 159 Member For: 18y 3m 28d Gender: Male Posted 01/02/07 11:33 PM Share Posted 01/02/07 11:33 PM the tyre shop has fitted 30 series tyres to my rims and I'm worried about rim damage with only having such a small profile.is this the normal size or do you guys have 35 or 40 series fitted?mike←I have 255/30ZR20's on mine. They wanted to fit 225/35's, but the tyre was waaay to stretched. Spent the extra $$$ per tyre and am happy now.Just have to be aware of what you are driving over. Little extra caution goes a long way. Link to comment Share on other sites More sharing options...
F6 RAPID Formerly Turbo6 Donating Members 2,332 Member For: 22y 1m 15d Location: North Brisbane Posted 02/02/07 01:40 AM Share Posted 02/02/07 01:40 AM It is out don't worry about that - about 5% I believe. It really shows up on dyno pulls - the difference between the 20's and the standard 18's.Don't worry, it has enough power to make up the gearing difference. ←I don't doubt the power is an issue, but the speedo error would be high or can you get that fixed with edit. LS1 edit allows you to enter diff ratio and tyre sizes, do Flash tuner allow this?←Honestly, it doesn't really concern me. I only drive the thing on weekends every now and then anyway and just remember the speedo error. If you used it all the time, yes, I would have been more concerned.As the rear wheels now appear to be bigger, it does give the car a far more agressive look which I love. Link to comment Share on other sites More sharing options...
Evil F6 Donating Members 830 Member For: 19y 1m 14d Gender: Male Location: Sydney Posted 02/02/07 04:33 AM Share Posted 02/02/07 04:33 AM Honestly, it doesn't really concern me. I only drive the thing on weekends every now and then anyway and just remember the speedo error. If you used it all the time, yes, I would have been more concerned.As the rear wheels now appear to be bigger, it does give the car a far more agressive look which I love.←Th dish on my new 19x9.5 rear wheels is huge and they look awesome. I'll post a pic this weekend after I wash the car. Link to comment Share on other sites More sharing options...
barramanxr6 Member 143 Member For: 20y 7m Gender: Male Location: tannum Posted 02/02/07 06:24 AM Share Posted 02/02/07 06:24 AM I had 285/30/20 on the rear was told they put speedo out and found out the hard way Link to comment Share on other sites More sharing options...
Infamous Member 51 Member For: 18y 1m Gender: Male Posted 02/02/07 07:02 AM Share Posted 02/02/07 07:02 AM Hey, I run Wanli 225/35ZR20 on the front. There the only tyres I could find that were legal and reasonably priced. I Run Wanli 245/35R20 on the back, tried putting them on the front but found they rub on my springs. The ones on my front cost me $290 a tyre in Perth and they are rated to 650kg. Wanli also make a tyre the same size 225/35R20 which are only rated at 600kg, so be careful which one you buy. The tyre placard says 630kg minimum. You can feel every bump in the road though and there is a bit of road noise, compromise you have to make to run 20s. My rims are Chrome 20" xHP Sabres. Link to comment Share on other sites More sharing options...
G6ET8U Playing with Sports Bikes... Silver Donating Members 1,927 Member For: 19y 3m 25d Gender: Male Location: Whistling, GTX. Posted 02/02/07 07:27 AM Share Posted 02/02/07 07:27 AM This is my whip on 20's...Jack Link to comment Share on other sites More sharing options...
IH8TOADS Silver Donating Members 3,618 Member For: 19y 7m 15d Gender: Male Location: OZ Posted 02/02/07 11:33 AM Share Posted 02/02/07 11:33 AM Hey, I run Wanli 225/35ZR20 on the front. There the only tyres I could find that were legal and reasonably priced. I Run Wanli 245/35R20 on the back, tried putting them on the front but found they rub on my springs. The ones on my front cost me $290 a tyre in Perth and they are rated to 650kg. Wanli also make a tyre the same size 225/35R20 which are only rated at 600kg, so be careful which one you buy. The tyre placard says 630kg minimum. You can feel every bump in the road though and there is a bit of road noise, compromise you have to make to run 20s. My rims are Chrome 20" xHP Sabres. ←I have nexen tyres 225/35R20 and are rated at 600kg. I rang tech9tyres on wed where I got them from and they reckon they are load rated for a BA. I suspected they were not so I'll be pi$$ed if they are lying as I wanted the wanli's for that reason. Link to comment Share on other sites More sharing options...
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