18" Front, 17" Rear?

Anyone running this wheel setup? Pics?

I want to run the 14" C6 Z06 brake setup in front, and that's going to necessitate 18" wheels up there. However, I'd like a bit more sidewall than that in the back, so I was thinking of going with a 17" wheel back there.

maybe its just me but that sounds ugly. why not just run 18s all around...

Yeah that doesnt sounds good.

yuk

maybe its just me but that sounds ugly. why not just run 18s all around...

Did you read my post? I want more sidewall than that. I just wanted to know if anyone has tried it, so that I could see if it really does look funny, or if it's fine.

There's a reason nobody's done it. Wheels look smaller in the back of Camaros anyway, even when they're the same size. Run a smaller back wheel and it's going to look at least 2 inches smaller than the front, regardless of whether it's just an inch or not.

Just go with the regular C5 brakes. They are 13" and they will fit inside the wheels that you already have on the car.

Just go with the regular C5 brakes. They are 13" and they will fit inside the wheels that you already have on the car.
I appreciate your opinion, but I'm planning for C6-Z06-like horsepower, and since my car weighs MORE than a C6 Z06 and is more front-heavy, I figure I should have at least that amount of braking ability in the front.

I will most likely end up with 18" wheels all around, but I wanted to explore the possibility. So nobody has tried this?

I've seen skimpy Mark Williams light weight racing brakes, tucked into 15" skinny "front runners" pull a 3,500# convertible down from 160+MPH trap speeds, with no problems. That's a car with almost 3 times Z06 HP.

then put 17s all around... id make fun of someone with 18 front 17 rear lol.. not kidding.. thats just like wtf mate

i agree with everyone else..go with the 18s all the way around...when i got my rims (same C6 17s front 18s back) i swapedthem and it looked ridiculous...wish i would have taken some pic to post up

I've seen skimpy Mark Williams light weight racing brakes, tucked into 15" skinny "front runners" pull a 3,500# convertible down from 160+MPH trap speeds, with no problems. That's a car with almost 3 times Z06 HP.

On a drag car where the brakes only have to haul that car down from 160 once before they get at least a few minutes to cool, sure. I'm setting my car up for autocrossing and road racing, not drag racing.

I think it would look tacky...if it were me I would buy two sets of rears. 18's for everyday use and then something else for the track. Nobody gives miss matched wheels a second thought at any track, but on the street you will get LOL'd at.

You don't necessarily need larger rotors to stop quicker.

You don't necessarily need larger rotors to stop quicker.

I'm content with my car's stopping power. I'm looking to reduce fade. To do that, you need to do one of two things: increase rotor size (providing more material to absorb heat) or improve cooling. I intend to do both.

I have chosen to do a C6 Z06 brake conversion because it costs 1/4 of comparable upgrade kits from Brembo, Baer, etc.

I enjoy a bit of overkill when modding my car. The way I'm going to set it up will support a MUCH faster car than I expect mine to ever be. I don't know why, but that's what I like.

Now that I'm done justifying the mods I want to do, can anyone actually answer my question, or are you all just going to speculate about how bad it would look? :mad:

Now that I'm done justifying the mods I want to do, can anyone actually answer my question, or are you all just going to speculate about how bad it would look? :mad:

All we're going to be able to do is speculate because I'm sure there's almost no photographic evidence of what this looks like. Anybody that did try it was definitely not wanting to take a picture of it at the time. Well, not until they saw this thread at least.

I'm content with my car's stopping power. I'm looking to reduce fade. To do that, you need to do one of two things: increase rotor size (providing more material to absorb heat) or improve cooling. I intend to do both.

I have chosen to do a C6 Z06 brake conversion because it costs 1/4 of comparable upgrade kits from Brembo, Baer, etc.

I enjoy a bit of overkill when modding my car. The way I'm going to set it up will support a MUCH faster car than I expect mine to ever be. I don't know why, but that's what I like.

Now that I'm done justifying the mods I want to do, can anyone actually answer my question, or are you all just going to speculate about how bad it would look? :mad:


Fade is either the pads heating up and losing friction or the fluid getting hot and boiling.

You can run a pad and fluid with a higher heat rating. This would be MUCH cheaper than larger rotors. ;) Also you can have MORE ROTOR MASS (which will reduce fade) w/out having larger rotors. A Stock LS1 11.8" front rotors are ~16 lbs, a decent replacement blank including Brembo are ~18lbs and a Baer 11.8" rotor is over 20 lbs.

Do you currently have C5 rotors? If not then why are you counting them out? Because they are smaller? They're directionally vented and the kits aren't expensive in comparison to C6 that ironicly is only directionally vented 1 way so 1 side's venting (drivers IIRC) is worthless....

Do you really think you'll generate a hotter braking environment than even a stock LS1 on a road course? I doubt it. But these guys run stock 11.8" or C5 12.8" rotors. I know 1 who actually runs Porche brakes on his 408cui car. So how do they do this? See paragraph 1-2 if you can't answer yet.

Bigger is NOT always necessary to be better.

Something else to consider. There is a reason that offset wheels are always larger in the rear and not the front and it has to do with stability.

Fade is either the pads heating up and losing friction or the fluid getting hot and boiling.
Agreed. And I'm sure you'll agree that a rotor with better cooling characteristics will help keep pads cooler.

You can run a pad and fluid with a higher heat rating. This would be MUCH cheaper than larger rotors. ;) Also you can have MORE ROTOR MASS (which will reduce fade) w/out having larger rotors. A Stock LS1 11.8" front rotors are ~16 lbs, a decent replacement blank including Brembo are ~18lbs and a Baer 11.8" rotor is over 20 lbs.
I know all that. How much do those Brembo and Baer rotors cost?

Do you currently have C5 rotors? If not then why are you counting them out? Because they are smaller? They're directionally vented and the kits aren't expensive in comparison to C6 that ironicly is only directionally vented 1 way so 1 side's venting (drivers IIRC) is worthless....
No, I currently have stock LS1 rotors. I'm not counting them out, I'm just aiming higher. I'm sure they're great, and I'm sure that the C6 Z06 setup is better.

Do you really think you'll generate a hotter braking environment than even a stock LS1 on a road course? I doubt it. But these guys run stock 11.8" or C5 12.8" rotors. I know 1 who actually runs Porche brakes on his 408cui car. So how do they do this? See paragraph 1-2 if you can't answer yet.
The Porsche brake conversion is ridiculously expensive. As I said earlier, one of the reasons I like the C6 Z06 setup is because it's cheaper than any other comparable setup. It's not much more expensive than a C5 conversion.

Something else to consider. There is a reason that offset wheels are always larger in the rear and not the front and it has to do with stability.
First point you've made that I haven't already thought of, and a damn good point at that. Probably enough to get me away from this line of thinking altogether, but I'd still like to see pictures if anyone has them. :)

11.8" Brembo rotors can be had for under $300 for all 4, but my stock replacement rotors weigh 18.5lbs and I got rotors, pads, and superblue fluid for well under $300. The cheapest C5 conversion I found was $700 IIRC.

Are you going to drag, road race or auto-x? If just drag and agressive street driving then the C5 kit will be overkill in it's self. Plus you won't have the extra weight of the C6 rotors. More isn't always needed or better. If you just want C6 then thats you call. Is it needed? No.