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You left out the time honored "mine are bigger then yours" reason, seriously.

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Actually, I could care less what size brakes you run.

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Apparently, you do.

You're in the realm of massive overkill. Since I don't drive Pike's Peak or Watkins Glen nor do I have massive steamroller tires I have yet to find any situation where my 11.75" rotors with organic pads and 11" drums are inadequate.

But if having the biggest set on the block makes you happy great, but don't p1ss on someone else's parade if they don't think massive overkill is the ticket.

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Most people don't need a classic muscle car either, because just about anything is "overkill" compared to a Geo Metro.

Find something else to complain about that doesn't involve senselessly being negative toward a fellow board members enthusiasm or passion for his vehicle..

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I like to think my comments are based on at least a smidgen of logic, if they were senseless, your point would be valid. If they are construed as negative, that might be in the eye of the beholder. I hope others technical passion for their cars also shares some logic. In this case however we have a Op who stated he is very happy with previous Gen2 brakes, but for reasons unclear to me, even after trying to state the obvious, has chosen to further upgrade his already loved brake package, for little other reason then, bigger is better, which the OP seemingly mocks himself. Brake capacity beyond locking the tires should be for a reason, we have mentioned what that most likely reason is, and I have no problem with that, except one should be honest, and not attack the messenger when questioned. There are also a number of downsides to constantly upgrading brakes way beyond any apparent needs, such as cost, complexity, unsprung weight, rotating mass, packaging, etc. Stating one positive reason for larger disc brakes is better pedal modulation maybe believed by some, but really? And trying somehow to introduce retro 9" drums in this discussion is pure ineffective exaggerated distortion (didn't know Cudas ever had 4 9" drums). There are other more cost effective simple brake fixes when one is seeking ultimate brakes with few downsides, that the OP has not mentioned, like 10oz of cooling duct vs heavier rotors, optimum pads chosen for the specific application, super high tech brake fluids, or just religious use of fresh brake fluids, which the OP doesn't not seem to realize based on his comments on another thread about how often one bleeds brakes anyhow. Sorry if my opinion is viewed as negative, it was meant to be a reality check, and besides its my opinion, nothing more.
Maybe if the OP wants to fill his rims with largest rotors possible, he should just get smaller rims.

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Why upgrade? because I wanted to.

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Why
So
Serious?

Ok, then what was up with the all diversion spiel about better braking modulation, added heat capacity, etc?

Just be up front and say you are are doing it for "no reason", and all the thread followers will classify it as such, instead of that you have stumbled on the holy grail of braking, or something?

And the new brakes do look nice

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I like to think

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I loved my Gen 2 viper brakes.

but...bigger is better, right?

I'm going to be adding these to the front of my truck instead.

Gen 3 viper brakes.


Here's a run down of the differences:

Gen 1, 2 viper brakes:

13" rotors, 38/42mm pistons in a 4 piston brembo caliper


Gen 3, 4 viper brakes:
14" rotors, 40/44mm pistons in a 4 piston brembo caliper.


Scored these off Ebay, and with the money I made by selling my Gen 2 brakes to another Dakota guy...will *hopefully* pocket about $100 from the upgrade

(finds wood to knock on because bad luck seems to find me easily and what seems easy or cheap...ends up costing me in the end )

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I like to think

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And there lies the problem.


We've had this discussion before.

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What a profound OT reply from my podiatrist self proclaimed moparts nemesis.

Just saying.

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Hmm. I think most of us would agree that short track nascar Cup cars ( what are the called these days?)are brutal on their brakes. I also think its fair to say that even at superspeedway speeds, they have effective braking for their application. Given the rules limitations of the wheels, the most popular sizes the nascar boys run are 11.75 x 1.25 and 12.19 x 1.25. Since these diameters tend to produce enough brake torque to slow down a 3500 pound car at speeds greater than most of us run with tires that have greater grip than any 200 treadwear UHP street tire, I'd say they are effective.

Do the larger rotors look better behind larger diameter wheels, sure. Do they provide a greater leverage arm, yup. Do we all need them, well, does anyone need 1000 hp force induction mill? Same thought process. Need is not automatically the first defining characteristic in selection.

But I can also see that a larger rotor could produce greater force with less aggressive pad compounds, quieter use, and longer life in a street application where an optimized competition set up could work, but not necessarily be friedly to use for Joe Average who may not want to heat up the pads, stand on the binders, change pads every month and stop with a profoundly noticeable sound at every stop light on his way into work.

So if nascar steps up to 17" wheels, will the rotors diameters increase, I don't doubt they will. What impact will that have on the driver's feel. Dunno. I mean, after all, they all run power steering now days too and a few decades ago that would have had you labeled a panty waist. Times change and things change along with them.

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But look at other forms of road racing cars that are setup to race on tracks with lots of corners. Australian touring cars for example...use AP racing calipers and 15.5" rotors.
Of course the Aussie cars are a little more high tech I suppose than the old fashioned nascar stuff.

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But look at other forms of road racing cars that are setup to race on tracks with lots of corners. Australian touring cars for example...use AP racing calipers and 15.5" rotors.
Of course the Aussie cars are a little more high tech I suppose than the old fashioned nascar stuff.

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Here is a comparison by the way....top is a twin piston PBR caliper (made in Oz, but used on an assortment of GM and Fords here) in the middle is a 4 piston Brembo from a SRT8 Challenger, and bottom is the 8 piston one I used (before I had painted them)

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I'm using Andyf's 13" mercedes rotors with viper calipers, they are probably similar in size to the middle brembos, 8 piston is some serious road racing! How fast from 60mph-to a dead stop with those on there?