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4.2 17" wheels on C5 2.7T / Brake replacement / Timing belt

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Old 01-05-2008, 08:25 AM
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Default 4.2 17" wheels on C5 2.7T / Brake replacement / Timing belt

I'm upgrading to the 4.2 "Fat spoke" wheels on my '00 2.7t, and want to make sure the stock size 255/40-17 tire fits with no rubbing. Any other suggestions? Do I need spacers?

I also need to replace the brake rotors and pads all the way around. I've found several OEM style replacement kits online. I'm not interested in slotted/crossdrilled/orbital rotors. Just a good OEM replacement.

I will be performing the 2.7t timing belt replacement. I've got 91k on it now, and it needs to be done. I plan on doing one of the complete kits that are avaliable. Who has the best kit? Are there any other tensioners or idlers that I can replace that are not included in the typical kit? I'd also like to do the serpentine belt, tensioner, and idler pulleys. I want everything rotational on the front of the engine to have new idlers and tensioners, to minnimize any future problems. Any suggestions?

I'm new here - thanks in advance for any info.

Eric
Old 01-05-2008, 08:39 AM
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Default The best fitting 17" tire for the "narrow body" is 235/45/17 and they...

fit on Fat-fives. As for TB kits...ECS tuning is a good bet, but gunuineaudiparts.com, and Carson @ riversideaudi.com can give you great pricing on OE & OEM parts -
Old 01-05-2008, 08:42 AM
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good idea, my motto - "if it turns, it burns". replace everything...
Old 01-05-2008, 08:56 AM
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Default Those tires actually will fit, unless you have lowered suspension....

Rolling diameter of the 255-40-17 tire is actually slightly smaller than the 235-40-17 tire, but within tolerance (your speedo/odo will be 1.2% too fast)

If the tires are fine and come with the wheels, use them up, but then replace them when needed with 235-45-17 tires of your choice of brand/model. Or, if you are willing, just replace them with the 235-45-17 tires right now.
Old 01-05-2008, 09:08 AM
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Default most of your answers to these and other questions can be found by using the search function

or browsing stoney's links....you're not the first one to do these things....

welcome to the madness
Old 01-05-2008, 09:34 AM
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Default Slight correction and more info

the 255/40-17 will fit (should fit?) and -- to correct BD (hey this is a first) its is slightly smaller than the 235/*45*-17 (not 235/*40*), whcih would be your best alternative. I would go with 235/45-17 BTW.

Many strongly recommend buying genuine audi tensioners and rollers for the TB kit. dont neglect the water pump and t-stat.

I did brembo OEM rotors and mintex pads on my S6. Perfectly fine. I got them from ECS, which people here either love or hate. I find them helpful.

Grant
Old 01-05-2008, 01:04 PM
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Default Re: Slight correction and more info

I have stock suspension. I am just getting the rims with no tires on them, so I'll be purchasing new tires. I'd love to stay with the 255/40 if it will fit. What would the pro/con be to switching to the 235/45?

Thanks again for the info guys.
Old 01-05-2008, 01:06 PM
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Default Re: most of your answers to these and other questions can be found by using the search function

Thanks for the heads up Press.
Old 01-05-2008, 03:07 PM
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Default The 255 size will be heavier = more unsprung rotating mass and will stick out past your fender edges

especially in the front.
Old 01-05-2008, 03:19 PM
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So - The 235 series wont stick past the fender edges? I figured that was related to rim width..?


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