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big rotors on early 944?

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Old 10-26-2007 | 08:16 PM
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Default big rotors on early 944?

I have 17" turbo twist replicas on my 84 944, and i'v seen brembo big brake upgrades for these cars with simmilar rim upgrades, does anyone know if its possible for the 17"s and where i could find them?
Old 10-26-2007 | 09:06 PM
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Which brakes do you want? 951 brakes or larger like S4/951S or even larger than that?

What application? Racing, DE, autocross, or bling-bling?
Old 10-26-2007 | 10:17 PM
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Im just curious to know the biggest i can go, and the best systems available. I enjoy very sprited driving on windy roads, sometimes more spirited than you'd see on a track, and I'm slowly building this into a track car. Not sure if id go with the best out there for brakes but I'm looking for something with crazy stopping power, my brakes are fine right now... Just a future project down the road maybe...
Old 10-26-2007 | 10:24 PM
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Originally Posted by ccaarmerciill
I enjoy very sprited driving on windy roads, sometimes more spirited than you'd see on a track,
Put your money into joining PCA and doing safe(r) DE sessions on track. I know people who go and get hooked on them.
Old 10-26-2007 | 10:30 PM
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I'm not saying i'm a street terrorist, on some remote twisty roads that i know well I can't help but have fun with for the price of gas. A good example... Marin county fairfax bolinas road and panoramic highway by the coast in northbay SF
Old 10-26-2007 | 10:36 PM
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I've found that the stock brakes are more than adequate for "very spirited" driving, ie extremely superlegal speeds on windy roads.

Anything more than the 951S/928S4 brakes would be overkill IMO.
Old 10-27-2007 | 07:53 PM
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Stock brakes are very good to start with. The Rennbay big brake setup is way more than adequate, I've been really happy with mine !
Old 10-28-2007 | 09:49 AM
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Hey;

You didn't start this thread to get lectured on driving, but if you are driving on the street "sometimes more spirited than you'd see on a track" you are either a menace or kidding yourself. Someday you'll get to the track, look back, and see how silly that sounds. Come join us at the track. Go for a ride with a skilled driver. You'll soon see you hadn't a clue.

You do not need big brakes. Stock class Club Racers must use the stock brakes. The only thing that you will find is that you go through pads and rotors quickly, which can get expensive. Otherwise, the brakes are only marginal for top drivers. With the right pads, fluid, etc., for everyone else they are fine.

The most cost effective way to upgrade is to go with a Turbo setup. Rear calipers bolt right on. Fronts require the correct spindle for the caliper you are using. I have 86 Turbo brakes on my 84. It does have more stopping power, for sure, which is nice. It is also FAR cheaper on those expensive Carbon/Kevlar racing pads, which is the main reason I did it. There are lots of these parts floating around used out there, and you can get them for a reasonable cost.
Old 10-28-2007 | 10:48 AM
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Or you can put $10k race brakes on just because...lol Really you will find on a n/a car that the turbo brakes are easily good enough for your uses. After a point you will be applying too much unsprung weight just for the sake of it.
On the other hand if you are experiencing some fade or failure of yours on the twisties, then there would probably be some cheap and easy upgrades such as ducting, Dot 4 fluid, pads, lines etc that could totally fix your issues. Plenty of info around.
Old 10-28-2007 | 12:58 PM
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If you do go to bigger brakes remember not to do any panic stops. It's easy enough to lock up the stock brakes as they are, bigger ones will make that simpler.

And the reason that such a light car like the 951S could handle those big blacks was because it had ABS...
Old 10-28-2007 | 02:34 PM
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Originally Posted by V2Rocket_aka944
I've found that the stock brakes are more than adequate for "very spirited" driving, ie extremely superlegal speeds on windy roads.

Anything more than the 951S/928S4 brakes would be overkill IMO.
Yeah, putting larger rotors on a 944 is nothing more than bling that will actually hurt your braking performance. This isn't a Honda Civic; Porsche already built it for performance. The stock rotors are more than capable of locking up the wheels at high speeds, as long as you have decent pads. I can do it on race rubber with just performance street pads, so it's going to happen much easier on street tires. 944 brakes don't have an overheating problem unless your pads really suck, so larger rotors will only serve to lock the wheels up easier, which means you have less traction and less control for threshold braking. You give up about 30% of your traction when your wheels are locked up and skidding. Larger rotors also mean more rotating mass, which isn't a good thing.
Old 10-28-2007 | 04:43 PM
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Yea, I have the standard OEM-style brake pads and regular-size Zimmerman rotors and have locked up at least 2 tires while doing 100MPH...lol



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