BoBcanada

Hey! Some of you may remember me im ex e55 owner but anyhow, I ordered C63 coming this july, and since C63 section is not that active I shall ask you!

Does wider tires rob power? C63 comes with some tiny 235 front and 255 rear I want to go wider. 245F 275 rear. What are the disadvantages?

thanks!

Yacht Master

Congratulations Bob,

Heres to you http://youtube.com/watch?v=5eOLq07VwSE

Bob I think that C63 is one hot car and I am sure 507 HP. is as easy as a tune.

Tires, yes as big as you can get.

AMGfan

Bob...What wheel size are you going with?

Jakpro1

Holy crap Bob, after all these years....you finally did it!!!

Congrats man!!!

Enjoy.

BoBcanada

yea i was going to get a used m5 but after thinking about it, I'd rather get new car and know that gearbox wont blow up on me.

Well for starters I would love to see if it would fit on stock 18" if not i'd get some rims, I mean i will sooner or later.

Very excited to unlock all it potential!

Not sure if I will be able to order P30 performance package and IF i should because people saying its too rough, and it will be my daily, but i do want an LSD, i guess you can retrofit it, just as many E55 owners did!

I mean for such pwerfull car it does need bigger tires to grip!

So What are the down of going wider?

listen to this music! This one is slightly tuned by AMG.
http://www.youtube.com/watch?v=HWrBzO9Ui5U

Stock
http://www.youtube.com/watch?v=HWrBzO9Ui5U

Timeless

Don't know of any downside aside from a minimal weight addition...possibly rubbing issues if the wheel does not fit with it or the car is lowered.

BoBcanada

But could it make acceleration much slower?

DFW01E55

I think the impact to power comes when you go to taller tires like 20's.

Timeless

There are others more qualified than I to answer this...but from my understanding the 63 does not have the traction issues the 55/600/65 series have and thus would not need a wider tire to try to put the power to the ground better.

So, I guess it could make the car slower from the additional weight...but I would think it would be miniscule at best.

juicee63

as long as your within the height and not widening the rim just the tire there will be no slowing and the wider tire will be better for the twisties and the straight line romps. 275 , 245 will help not hurt. You could also be the first to ditch staggered and go for 265's all the way around in a pilot sport cup. that would be insane. Give us the rim widths for the C63 and I am certain we will be able to dicern if they can fit. My 305's are lighter than my 285's, different brands wiegh differently as well

BoBcanada

You know I just have a feeling that AMG purposely did put smaller tires so it wouldn't out handle other AMG models! And i'm really looking into how can i make it handle lil bit better.( not that its bad, just to make it on par with m3 or better, car weights 1700+KG) And im certain that with better tires it would really dive into corners better, and hook up too and feel more comfy with all that power.

here the specs...
Wheels
Front: 8.0 J x 18; rear: 9.0 J x 18

Tires
Front: 235/40 ZR 18; rear: 255/35 ZR 18


Pilot sport would defenetly make it eat up every corner! I mean CLK63 BS uses 285r and 265f. even M3 comes with wider tires and it doesnt have so much torque to deal with!

nrgy

I'm looking at putting wider tires on mine too. I want to go with a R compound tire, specifically the Toyo R888, but as of now they offer a 235, and the next size steps up to a 295. Ugh, I don't think I can go that wide, especially with a drop.

What/where/how should I measure to determine the widest I can go. I pick mine up Wed. or Thurs., and want to get a set of 19" rims fairly soon.

steadi

R888's are round and hold air and that's about it. They SUCK as tires goes. I'm forced to use them by our series rules and they suck on both of our race cars.

Zod

the toyo r888 suck?
in what way do they suck?

steadi

Yes the Toyo R888's suck. They have a VERY poor Pressure/spring rate and Camber/Spring rate curves. The Tires spring rate is ridiculously high and it also has a very narrow optimum temp range.

Short life also. Something like 45 miles before they start to get ratty

Eric Fletcher
Team Manager/Chassis Engineer
Horton Motorsports
#57 Mazda 6 WCTC
#57 Viper Comp Coupe WCGT

juicee63

Dam the 18x8 needs to be an 18x8.5 or 18.9, you could do 235/40/18 and 265/35/18 in the MPSC , it would be great still. Best set up for the C63 would be a lightweight 1 piece forged. Or get a 18x8.5 18x9.5 , that 8 inch width is going to limit you in tires.

If you wanna keep the stock set just go with the 235 fronts and 265 rears in the MPSC for the summer and change em out for winterweather if you have any..

Mike O.

Please do yourselves a favor...ignore steadi...aka Eric Fletcher. Eric is a steadicam operator. Eric does have a role in a race team, but then again so did Bobby Boucher for the Louisiana Cougars as the water boy.

Eric has some problems separating truth from pure fiction.

He is NOT a race car engineer, race car driver or anything of the sort. He has done some HPDEs and actually talked a few clubs into letting him instruct. He does not have his racing license. The Audi in this thread is NOT his, it is owned by the individual who's race team is in the Mazda series he is referring to...it's Pat's old NASA car.

It's no surprise that with less than 40 threads, Eric has managed to **** off more than a few people here. He's been doing it for years on several Audi boards. He has run his course there either having been banned or now ignored and it seems he's somehow found his way to a new board.

This will undoubtedly be replied to with some vitriolic hate speech about how I am out of my element, or how I don't know what I am talking about, or better yet...prove it. Eric loves to let other people prove things he claims to have done but in the nearly 10 years I've been watching his threads, I have yet to see him back a single claim he has made with anything resembling evidence of his incredible feats.

My best advice, find a way to ignore him or ban him from your board. You will be better off for it.

For your reference (cut and pasted from another thread:

For years I've watched him berate people about their lack of knowledge about driving and technical issues based on his "extensive" pro racing career. Posts including this gem:

"Including the stuff that I get paid to do. For four years I ran the
Mickey Thompson Off-Road and Stadium Truck Series, I have raced in the
SCCA in Solo 1, Solo 2, Pro Solo, IT, GT1, GT2, GT3, GT5, HP, GP,
Showroom Stock, Trans-Am,World Challenge, Spec Racer, DSR and S2000, I
still run Several SVRA events a year, and I spend most of my time with
the IMSA crowd where I have run in: Camel Light's, GTO, GTS, GTS-1,
Firehawk, Supercar and the Luk Clutch Challenge. I am presently
handling the Test Driver Chores for a Touring Car Team and a Trans-Am
team."

On top of all that I instruct for Skip Barber, Fast Company, The Russell
School, and Bertil Roos. I also do private instruction and instruct at
club events fror the Q-Club, Prosche club, BMWCCA, Alfa Owners, and
Corvette Owners.

Sorry but if you want to play mines bigger than your's.... You loose."

http://www.audifans.com/archives/1996/02/msg00781.html

I suspected he was full of BS the first time I met him (and through reading the description of said career change in each retelling) but ignored it until a recent stupid argument which lead to some of his typical dick waving and I decided to check this incredible...I mean INCREDIBLE racing career. My conclusion is Mr. Fletcher can "win" a "mine's bigger than your" post about this becuase he has an active imagination. To avoid taking too long, I simply looked at this house of cards which always goes back to the continuous mention of his racing Camel Lights sports prototypes...also IMSA GTO and GTU and then the Trans-Am thing.

So I found an archive of the results from every IMSA race (in every class) in the history of the organization and there's no Eric Fletcher, in fact the only Erics that ever raced in Camel Lights are definitely NOT fletcher. Contacted the guy who compiled it and it was from his personal archive of printed result sheets from the races themselves.

Here's the URL (sorry about the copy/paste link):
http://www.classicscars.com/wspr/res...imsa_home.html

Amazing he never appears in any results sheets when: "It went from there for 6 years till it was strenuously suggested by several doctors that I retire from driving Ground Effects cars (It happened to a lot of drivers in the 80's-90's)"

Uh or this:
"All my numbers are from testing. Quick Recap on my background I raced for a living in Camel Lights/Firehawk and other series from 89-94, taught for Skip Barber and a two other schools and suspension engineered for a Trans/Am team. I have a background in suspension tuning, going into this I had a serious grasp on what works and what doesn't."

or:
"running in IMSA starting in the LuK clutch challenge which then turned into Firehawk and I moved up from there eventually running in a Camel Lights Car, GTO and GTU and also doing some SCCA Trans-Am racing. During that time I taught for Skip Barber racing, Bertil Roos (Anti-terriost, Secret Service and Navy seal training) and Fast Company Racing school. In 1996 I semi-retired. I still teach on occasion and also race (mostly Vintage stuff)"

Confusingly he said he raced an "Argo/Spice" but that's two different cars...unless he raced BOTH an Argo AND a Spice but failed to score a single point in the history of the series.

Now here's the results for every single trans-am race in history...I checked 1988 through 1996 and there's no Eric Fletcher who ever started (or even entered) a trans-am race:
http://www.trans-amseries.com/Event/ResultsArchive.asp

So where are the photos and results sheets and stuff from this career? It's time to prove it or shut the f**k up. What's the real story of your racing career? Those of us who raced have trophies, photo albums, magazine and newspaper clippings and printed results...lets see some.

Here's an interesting mix of supercars (including, aparently F1 cars) that he's driven:

http://forums.audiworld.com/s4/msgs/1299759.phtml

http://forums.audiworld.com/s4/msgs/709928.phtml



(EDITED UPDATE)

Within THIS VERY THREAD, Mr. Fletcher claimed he had "3000+ hours" logged as a pilot (later he edited it to "Asked and answered when you asked me last time" but if you read StratAirReg's reply "you have more than me, I have just under 3000." it shows Mr. Fletcher's original claim). Only two years ago he said he had "900+ hours". He has also claimed (at various times) a commercial rating (doesn't have one) a twin-engine rating (doesn't have one) and a plethora of other stories from helicopters to B17s.

Quote:

I fly for me, I'm currently a PPMEL-IA (that's Private Pilot MULTI-ENGINE LAND-Instrument...my edit) working on my Commercial"

"I did my instrument rating in 25 days. I have 900+ Total time (last time I really looked...) and 350 Hours of that is in a King Air.

Good luck getting into the industry, I have many friends with much more time than you will have that have been Furloughed from their jobs."

http://forums.audiworld.com/other/msgs/492952.phtml

Once again, we have a story which is untrue...the FAA public records clearly show Mr. Fletcher has neither a twin-engine rating or a commercial license (as clearly stated by him in a later post) and his claims of "900+ hours" and then only two years later "3000+ hours" is so wildly improbable as to be virtually impossible...so, once again, we are left with significant doubt as to his credibility when discussing any subject, particularly his own life.

http://forums.audiworld.com/other/msgs/2647334.phtml

http://forums.audiworld.com/s4/msgs/70121.phtml

DFW01E55

Ouch!

That's gonna' leave a mark!

2MANYCARS

I'd seen the car in person, I would leave the 235/40/18 on the fronts alone because they sit pretty close to the fender and quite flush, the back though, I think you can get away with 265/35/18 with no problem. I base these on stock wheels with stock suspension.