wvumtnbkr Posted October 25, 2018 Report Share Posted October 25, 2018 I am debating a brake upgrade on my car. I would be using 2 piece rotors. The rotors and hat that I want to use are roughly 150$ combined (for each side). The "most expensive" stockish rotor I can find is Brembo blanks on Tirerack for $63.00 each https://www.tirerack.com/brakes/brakes.jsp?make=Brembo&model=Replacement+Rotor&group=Replacement+Rotor&partNum=B25362&autoMake=Mazda&autoModel=RX-7+GXL&autoYear=1987&autoModClar= What would my penalty be? Anybody know? In general what is the penalty for going over the 2x rule? Thanks! Rob R. Quote Link to comment Share on other sites More sharing options...
karman1970 Posted October 25, 2018 Report Share Posted October 25, 2018 2 hours ago, wvumtnbkr said: I am debating a brake upgrade on my car. I would be using 2 piece rotors. The rotors and hat that I want to use are roughly 150$ combined (for each side). The "most expensive" stockish rotor I can find is Brembo blanks on Tirerack for $63.00 each https://www.tirerack.com/brakes/brakes.jsp?make=Brembo&model=Replacement+Rotor&group=Replacement+Rotor&partNum=B25362&autoMake=Mazda&autoModel=RX-7+GXL&autoYear=1987&autoModClar= What would my penalty be? Anybody know? In general what is the penalty for going over the 2x rule? Thanks! Rob R. I thought it used to be a point per dollar, but that probably got removed when the rulebook was streamlined. Quote Link to comment Share on other sites More sharing options...
Snorman Posted October 25, 2018 Report Share Posted October 25, 2018 2 hours ago, karman1970 said: I thought it used to be a point per dollar, but that probably got removed when the rulebook was streamlined. That would be pretty insane. S. Quote Link to comment Share on other sites More sharing options...
mhr650 Posted October 25, 2018 Report Share Posted October 25, 2018 4 hours ago, wvumtnbkr said: I am debating a brake upgrade on my car. I would be using 2 piece rotors. The rotors and hat that I want to use are roughly 150$ combined (for each side). The "most expensive" stockish rotor I can find is Brembo blanks on Tirerack for $63.00 each https://www.tirerack.com/brakes/brakes.jsp?make=Brembo&model=Replacement+Rotor&group=Replacement+Rotor&partNum=B25362&autoMake=Mazda&autoModel=RX-7+GXL&autoYear=1987&autoModClar= What would my penalty be? Anybody know? In general what is the penalty for going over the 2x rule? Thanks! Rob R. I wish we could get a definitive decision on 2 piece rotors, a couple of hundred up front and now you are running a proper racing rotor that will last a long time and only costs $30 to replace when you need to. I know that on the other side are the no way we should ever allow 2 piece rotors group. Right now we are in kind of a grey area, you really shouldn’t be charged the full price of rotors and hats since the consumable part is so cheap to replace. Quote Link to comment Share on other sites More sharing options...
mender Posted October 26, 2018 Report Share Posted October 26, 2018 Looks pretty straightforward to me: 4.8.1. "brake rotors (1 or 2 piece)" I used my old front rotors to mount the $30 2 piece style rotors. Two Wilwood calipers, material cost for caliper mounts and I'm good. I made my old piece)rake rotors (1 or 2 piece) Quote Link to comment Share on other sites More sharing options...
wvumtnbkr Posted October 26, 2018 Author Report Share Posted October 26, 2018 So what if you go beyond 2x on the 2 piece brake rotors? Quote Link to comment Share on other sites More sharing options...
Jab31169 Posted October 26, 2018 Report Share Posted October 26, 2018 (edited) It's more of a guideline than a rule.... I'd say there is no way someone would come after you for 30 bucks over.... right?...? Edited October 26, 2018 by Jab31169 Quote Link to comment Share on other sites More sharing options...
karman1970 Posted October 26, 2018 Report Share Posted October 26, 2018 11 minutes ago, wvumtnbkr said: So what if you go beyond 2x on the 2 piece brake rotors? After reading the rules back to 2017, I'd say it is up to the tech inspector's discretion as it no longer classifies under 2x and is not listed as a FPV, yet must still be declared. Quote Link to comment Share on other sites More sharing options...
mhr650 Posted October 26, 2018 Report Share Posted October 26, 2018 12 hours ago, mender said: Looks pretty straightforward to me: 4.8.1. "brake rotors (1 or 2 piece)" I used my old front rotors to mount the $30 2 piece style rotors. Two Wilwood calipers, material cost for caliper mounts and I'm good. I made my old piece)rake rotors (1 or 2 piece) They did update the rule, thanks for pointing it out. I am liking the new rules more and more… Quote Link to comment Share on other sites More sharing options...
EngEtan Posted August 28, 2019 Report Share Posted August 28, 2019 (edited) Has there been any updates to this that anyone can speak to? My current build has Wilwood 2-pc rotors that are well above 2x any OEM prices I've found, so I'm curious how this will impact me. Edited August 29, 2019 by EngEtan Quote Link to comment Share on other sites More sharing options...
Indysupra Posted August 29, 2019 Report Share Posted August 29, 2019 How much are factory rotors? Quote Link to comment Share on other sites More sharing options...
EngEtan Posted August 29, 2019 Report Share Posted August 29, 2019 (edited) For my car, the most expensive ones I can find are $77. Edited August 29, 2019 by EngEtan Quote Link to comment Share on other sites More sharing options...
Richard Posted August 29, 2019 Report Share Posted August 29, 2019 Wilwood calipers (4 piston limit) over the 2x limit are 5pts per corner as per the rules. Quote Link to comment Share on other sites More sharing options...
EngEtan Posted August 29, 2019 Report Share Posted August 29, 2019 (edited) 31 minutes ago, Richard said: Wilwood calipers (4 piston limit) over the 2x limit are 5pts per corner as per the rules. You are correct. Now, about the rules on going over the 2x limit for rotors... anyone have any experience with this? The rules don't definitively state what the point value will be for instances such as this, which I guess leaves it up to Tech. "Wheels, brake calipers, brake rotors / drums and non-adjustable shock absorbers are open, PROVIDED they meet the “2X Rule.”" Probably a good chance it's the same as calipers at 5 pts per corner, but I'd like to know. I may just have to reach out to someone. Edited August 29, 2019 by EngEtan Quote Link to comment Share on other sites More sharing options...
Richard Posted August 29, 2019 Report Share Posted August 29, 2019 I think you'd be hard pressed to go over the 2x rule for rotors no matter what you choose to use. I also doubt if anyone is going to protest rotors unless you're showing up with carbon fiber or something ludicrous. Quote Link to comment Share on other sites More sharing options...
shanehutton Posted August 29, 2019 Report Share Posted August 29, 2019 Have you tried the dealer to get a price for the rotors? Quote Link to comment Share on other sites More sharing options...
wvumtnbkr Posted August 29, 2019 Author Report Share Posted August 29, 2019 The most expensive I could find rotors for my car are like 70$. Just the top hats are like 125 each for ones that I would trust. I figure if I went 2 piece rotors I would be around 160 a corner. Quote Link to comment Share on other sites More sharing options...
Originalsterm Posted August 29, 2019 Report Share Posted August 29, 2019 43 minutes ago, wvumtnbkr said: The most expensive I could find rotors for my car are like 70$. Just the top hats are like 125 each for ones that I would trust. I figure if I went 2 piece rotors I would be around 160 a corner. Top hats? Don't you mean "required mounting hardware"? 1 Quote Link to comment Share on other sites More sharing options...
Snorman Posted August 30, 2019 Report Share Posted August 30, 2019 15 hours ago, Originalsterm said: Top hats? Don't you mean "required mounting hardware"? Uhh...no. 2 Quote Link to comment Share on other sites More sharing options...
chbright Posted August 30, 2019 Report Share Posted August 30, 2019 So, in the past there was a cheeky recommendation to make wheel spacers that just so happened to also have adequate mounting for the rotor. That way the spacer acts like the rotor hat as well. Now if that gets thru without a protest...... that's another matter. Quote Link to comment Share on other sites More sharing options...
EngEtan Posted August 30, 2019 Report Share Posted August 30, 2019 Dealer doesn't carry parts for a 1990 model anymore. Most expensive ones I could find were $77. Not including hats, the Wilwood rotors came in at $225 ea. Quote Link to comment Share on other sites More sharing options...
Originalsterm Posted August 30, 2019 Report Share Posted August 30, 2019 3 hours ago, Snorman said: Uhh...no. Sorry, green font didn't work for me. Quote Link to comment Share on other sites More sharing options...
EngEtan Posted October 25, 2019 Report Share Posted October 25, 2019 So that brings up another question. Do rotor hats count against you on the price of rotors? It's not like they're a wear item. I suppose they have a weight benefit, but that's usually negated by the increased size and mass of the rotor ring. Quote Link to comment Share on other sites More sharing options...
LuckyKid Posted October 25, 2019 Report Share Posted October 25, 2019 On 10/25/2018 at 12:00 PM, wvumtnbkr said: I am debating a brake upgrade on my car. I would be using 2 piece rotors. The rotors and hat that I want to use are roughly 150$ combined (for each side). The "most expensive" stockish rotor I can find is Brembo blanks on Tirerack for $63.00 each https://www.tirerack.com/brakes/brakes.jsp?make=Brembo&model=Replacement+Rotor&group=Replacement+Rotor&partNum=B25362&autoMake=Mazda&autoModel=RX-7+GXL&autoYear=1987&autoModClar= What would my penalty be? Anybody know? In general what is the penalty for going over the 2x rule? Thanks! Rob R. Can you provide info on the hats you want? I have a machine shop and was thinking of selling some hats at a set price. I also have bought a bunch of willwood hats for the Miata very cheap, its possible I can drill a 5-lug pattern into it, if that matches. Quote Link to comment Share on other sites More sharing options...
Originalsterm Posted October 26, 2019 Report Share Posted October 26, 2019 As for the beyond 2x cost rule, for any component... Wouldn't a component beyond 2x unfortunately land someone in EC? A super expensive set of fancy shocks could put you in EC, why not a set of Uber brakes? Quote Link to comment Share on other sites More sharing options...
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