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Frontrunners with 13" rotors?

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Old Jan 11, 2006 | 10:58 PM
  #1  
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Frontrunners with 13" rotors?

I have recently put a C5 Brake setup on my camaro, not even thinking about my 15x4 prostars for the strip...
Needless to say, they dont fit.
Who makes a wheel that looks close to a prostar and will fit over the c5 brakes?
Thanks
Stevie
Old Jan 12, 2006 | 09:14 AM
  #2  
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Re: Frontrunners with 13" rotors?

Bogart...or grind the front caliper
I am running set of 15x4 Convo Pro's over Baer 13" rotors and had to grind the outside edge of the caliper to get them to clear
Old Jan 12, 2006 | 09:39 AM
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Re: Frontrunners with 13" rotors?

I dont know if there is enough meat on my calipers to get clearance, I will check into the bogarts.
Old Jan 12, 2006 | 11:15 AM
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Re: Frontrunners with 13" rotors?

Could you please post your findings on the Bogarts. I have a set of C5 brakes that I want to install but wasn't sure about drag rim fitment. Thanks.
Old Jan 12, 2006 | 03:04 PM
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Re: Frontrunners with 13" rotors?

Why run LIGHT wheels in front (the whole concept of runners) only to replace the lost weight and then some with 13" rotors?
Old Jan 12, 2006 | 03:45 PM
  #6  
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Re: Frontrunners with 13" rotors?

Originally Posted by Greed4Speed
Why run LIGHT wheels in front (the whole concept of runners) only to replace the lost weight and then some with 13" rotors?
I do more than dragrace the car, the 13" brakes really helped out over the factory dinky *** 11". No reason to run a 17x9 with 275/40/17's up front if I can fit something lighter.
Why wouldnt I want lighter wheels for the front on the strip? There is still a difference.
Old Jan 12, 2006 | 09:07 PM
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Re: Frontrunners with 13" rotors?

Why not just put your "dinky" rotors back on for the strip then, since runners suck on the streets?

Not to mention your tire and pad choice helps with braking more than 13" rotors will, runners definately aren't going to help you there. 13" rotors will really help you with heat dissipation from high speed repetitive braking which you won't be doing with runners.

Last edited by Greed4Speed; Jan 12, 2006 at 09:11 PM.
Old Jan 12, 2006 | 09:27 PM
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Re: Frontrunners with 13" rotors?

What you fail to understand is that the LT1 has garbage for brakes. You can't lock the front wheels to even activate the anti-lock on a dry surface no matter how hard you push the pedal. Also, you can't just switch rotors for the strip. If you think about how disc brakes work, you realize the caliper is mounted to contact the rotor at a certain spot.

Tires and pads will not make up for an inferior and undersized design. BTW, you actually lost weight in the spindle from the spindle modification, the 13" rotors weigh marginally more, but the calipers are lighter in the C5 kit. As he said, he isn't building a trailer queen that gets driven only on the strip. In that case, he'd have aerospace lightweight brakes. He wants to improve braking as well as reduce rolling resistance at the track. You may add 5 lbs of rotating weight per side with the brake upgrade, but save as much as 30 lbs per wheel with front runners/skinnys.
Old Jan 12, 2006 | 09:38 PM
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Re: Frontrunners with 13" rotors?

Originally Posted by Turbo6
What you fail to understand is that the LT1 has garbage for brakes. You can't lock the front wheels to even activate the anti-lock on a dry surface no matter how hard you push the pedal. Also, you can't just switch rotors for the strip. If you think about how disc brakes work, you realize the caliper is mounted to contact the rotor at a certain spot.

Tires and pads will not make up for an inferior and undersized design. BTW, you actually lost weight in the spindle from the spindle modification, the 13" rotors weigh marginally more, but the calipers are lighter in the C5 kit. As he said, he isn't building a trailer queen that gets driven only on the strip. In that case, he'd have aerospace lightweight brakes. He wants to improve braking as well as reduce rolling resistance at the track. You may add 5 lbs of rotating weight per side with the brake upgrade, but save as much as 30 lbs per wheel with front runners/skinnys.
That sums it up perfectly. I wil post back when I find out something about the bogarts, I will try some of the vette boards. I think I would definitely like to find wheels that fit rather than grinding the calipers down, I am afraid of spreading them if they are ground much.
Old Jan 12, 2006 | 10:13 PM
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Re: Frontrunners with 13" rotors?

I'll try to answer a few questions in here. We continually work on new Bogart wheel designs and concepts for new car applications. So we don’t get flooded on the phone with a flurry of questions or wishes, I’ll try to answer them as best I can on the boards for all.

There are some good valid points made by many posters regarding the brakes.

We were addressing the C5 brake setups awhile ago but got sidetracked trying just to supply the needs of the current drag racers. We've been "putting out the largest fires" first. The C5 drag market seems to be very small. Most want road race setups not drag. A set or two of drag setups have been built but not enough continued feedback was reported. 16 inch drag wheels are necessary with the C5 calipers...this creates a problem with tire choices, overall weight savings diminish with larger tire sizes.

The larger brake setups are really not a good option for drag racing applications. As stated, there can be more disadvantages for drag applications then positive. The setup is great for RR designs. With larger calipers, higher clamping forces are certainly seen…this means more skidding will occur. The limiting factor is the footprint of the small skinny tires.

I'd suggest to the LT1 folks, if considering an "upgrade", the largest I'd go to would be LS1 brakes which are actually 5 lbs lighter then the LT1 setups even though they are larger (due to materials used). We've designed the LS1 setups still to be a direct fit for our drag wheels. This gives the user the "better" stopping power for RR setups while still allowing drag wheels to fit. This should help braking issues that are seen. Remember, having huge fantastic stopping powered brake setups just increase the likelihood you'll be skidding more setting the ABS off as you attempt to stop. I think ABS activating constantly is a worse of two evils.

It’s hard to do have a road race setup AND drag race setup. You end up sacrificing performance in both areas. My best analogy is…a summer tire is ok in the summer and ok in the winter….BUT a true summer tire will outperform the all season tire in the summer as well as a winter tire in the winter.

If anyone has additional questions or concerns, feel free to contact me directly. I do not want to overstep my boundary on the boards and respect the vendor/advertising commitment.

Last edited by steve10; Jan 12, 2006 at 10:20 PM.
Old Jan 13, 2006 | 11:44 AM
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Re: Frontrunners with 13" rotors?

Originally Posted by Turbo6
What you fail to understand is that the LT1 has garbage for brakes. You can't lock the front wheels to even activate the anti-lock on a dry surface no matter how hard you push the pedal. Also, you can't just switch rotors for the strip. If you think about how disc brakes work, you realize the caliper is mounted to contact the rotor at a certain spot.

Tires and pads will not make up for an inferior and undersized design. BTW, you actually lost weight in the spindle from the spindle modification, the 13" rotors weigh marginally more, but the calipers are lighter in the C5 kit. As he said, he isn't building a trailer queen that gets driven only on the strip. In that case, he'd have aerospace lightweight brakes. He wants to improve braking as well as reduce rolling resistance at the track. You may add 5 lbs of rotating weight per side with the brake upgrade, but save as much as 30 lbs per wheel with front runners/skinnys.
But what you fail to understand is that front runners are going to severely limit his braking also. You can have massive brakes but if you don't have the tire to slow the car down what is the point? With skinny tires you're not going to brake well reguardless of what rotors you run. Especially seeing how the front brakes do ~70% of the stopping. I ran older f-bods for years, want to talk about small rotors and inadiquate braking? Pads make a HUGE difference even on their small rotors.

I am also well aware that it isn't "just a rotor change" to go back. Wow!!!! a bracket is really difficult to unbolt while the caliper is already off.

Again, if this is not a trialer queen strip only car, WHY RUN RUNNERS???? They aren't good for the street.
Old Jan 13, 2006 | 12:38 PM
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Re: Frontrunners with 13" rotors?

If you read my second paragraph, half way through I mention the fact that "he isn't building a trailer queen" and would like to both run skinny's at the track for less weight/rolling resistance and also run some nice wheels on the street for decent handling. While I understand that you can't do both 100% effectively, there is definitely the possibility for improvement. I see that you have an LS1. I don't know if you've owned LT1's in the past, but I have had multiple, and I've found no pad change or pad compound that gives adequate braking performance for a street car.

Many of us use our cars for both weekend cruising/local hangouts as well as at the track. For me, the extra 1/10th or 2 is worth putting skinny's on at the track but not at the expense of sacrificing the other 80% of the time the car is driven on Fikse's. I'm not going to change rotors, pads, calipers, and the whole brake system for 1 day or even 1 weekend at the track every couple months.

Last edited by Turbo6; Jan 13, 2006 at 12:44 PM.
Old Jan 13, 2006 | 03:15 PM
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Re: Frontrunners with 13" rotors?

Turbo, glad you see what I am talking about....It must be a hard concept for Greed. In my world a wheel swap is easier than swapping the spindle and having the car realigned....wierd huh
The C5 Swap is more than a bracket, it is a whole spindle change, and I dont have any LS1 Rotors to swap onto my car...no reason to buy 12" rotors when you are running 13.
I am fully aware that bigger rotors weigh more...I am aware that runners weigh less than my street tires. Not hard to figure out.
Sorry, not trying to start an argument on here, but I dont need to know that in Greeds world, upgrading brakes is a curse on the world, just what will fit over my "Dragstrip Forbidden!!!" brake setup.
Old Jan 13, 2006 | 06:15 PM
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Re: Frontrunners with 13" rotors?

It isn't "dragstrip forbidden" just a bit of an oxymoron to run a heavy brake set up and yet worry so much about wheel weight. Just find the gain elsewhere, are you running DRs or slicks?
Old Jan 14, 2006 | 01:18 AM
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Re: Frontrunners with 13" rotors?

It's also then an oxymoron to buy a f-body with power windows, t-tops, power locks, power seats, leather, CD changer or even floor mats if you are EVER, even ONCE, going to take your car to the dragstrip by your logic then. Everything is a tradeoff. If you make 13" brakes fit and can run skinnys you not only improve braking with everyday radials on the car but you still net 40 or more lbs off the front end rotational weight. To me it is a win-win, not an oxymoron. You tell me where else you can remove over 40 net lbs of rotational weight from the car. I doubt you can find that much elsewhere.



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