Recommendation for Gen4 drilled rotors

Hi viper community

I am planning into upgrade my rotors but not so sure which one to buy as there are many aftermarkets rotors

looking specificly for drilled rotors or slotted and drilled, so what do u recommend ? ( for street use and street racing )

I found those online : so what do u think? or may be there is some other rotor that u recommend?

shall I run the factory pads or do u recommend an aftermarket one ?

EBC 3GD Series Sport Rotors



StopTech Drilled and Slotted


Baer Brakes EradiSpeed-Plus


StopTech Drilled


StopTech Cryo


Regards

Drilled rotors are for looks mainly and NOT for any serious usage where you will build up heat as they WILL crack. If you need bling just buy the slotted ones.

I recently bought the Baer EraiSpeed's and they are very nice. Have about 300miles on them so just breaking them in. I went with EBC reds for the pads as I hope they are less dusty...

Stay away from the cheap drilled rotors under a $1000, I would go for Brembo 2 piece.

I'm running the Baer rotors for the last 3 years with the hawk ceramic pads, love the set up.

I'm running the Baer Eradispeed rotors with the EBCGreen brake pads...completely satisfied!

There is much to consider here. First off, standard one-part rotors are production stuff. Durable and well made (OE). If you want your brakes to have a little more bite and work better in really wet conditions, you can have them slotted. The slots get the pad heated quicker when cold and clean out dirt and debris. They also will help channel out water. You do not ever want to "drill" holes in these types of rotors. This weakens the rotor and will cause cracks under heavy use. "Dimpling" like done to the EBC rotors is fine, where the holes are not drilled all the way in the rotor. Another exception is when rotors are cast with holes in them, not drilled. These tend not to crack as easily. Drilled through rotors are for looks, originally designed to eliminate pad “gassing” that would push the pad off the disc, but pad technology has eliminated this. Production cars like Porsche have drilled discs, just for aesthetics. For the track, plain or slotted rotors are the norm.

Two part rotors, which are made up of a "hat" and "ring" are better than OE rotors. They tend to be 3-10 pounds lighter per wheel, the ring is usually "vented" and the hardware that connects the ring to the hat is usually "floating". Less weight means less rotating mass; at 70 mph a loss of 6 pounds per wheel is huge, and can be felt. These vented rotors have an aero design inside that will draw air from the inside of the rotor and expel it out, like a fan. This cools the rotor and makes the braking more repeatable, keeping the heat down. Lastly, a two part floating design allows the heat to be controlled in the rotor (ring) and not transferred in into the hub, bearing and studs. This keeps the heat away from critical components that can distort and heat damage them.

There are differences in quality in aftermarket rotors. OE replacement rotors can be found as cheap as $40 per wheel (Viper). You get what you pay for, so buyer beware. Cheap rotors can be a safety hazard on the track, fracturing, warping and coming apart. Two part rotors are typically high quality, but you also get what you pay for. Brembo Rotors tend to be the highest quality for the Viper, followed by Stoptech, Bear, Girodisc and Power slot.

Brake pads are application specific and again, you get what you pay for. Cheap pads have no bite, overheat, dust and squeak. Your can get some for $10 an axle on E-Bay. Track pads are for the track and street pads are for the street. There is some middle ground, but nothing is best for both. Do your research, OE pads are great but are expensive and not the best for the track. Companies like Hawk, PFC, Stoptech, Endless and Rabestos have good product.

Hope this helps.

Throw in some Stoptech ss braided brake lines while you're in there.

Dan Cragin nailed it. I'd never consider drilled rotors as any sort of "upgrade". If anything, they are a downgrade from OEM rotors. Brakes need to perform, not just look pretty. Go with slotted 2-piece rotors if you want to gain performance, lose weight, and improve appearance.

Tony

No One can accurately answer the OPs question without knowing how-where he plans to drive!

I agree with a lot of what Dan stated.... but if you DONT plan to track your car FREQUENTLY..... and when you do, it wont be on slicks at 95% for long sessions, you can do very well for YEARS on entry-level Slotted-drilled rotors! .....

We have Eradispeeds on an RT10 here, with over 15000 miles on them, and we have used it on track in MANY hot-laps-Pace Car sessions for 5+ years.

Fact: Drilled Rotors WILL fail 'sooner' than plain or slotted......but how soon depends on how hard and often YOU will drive, and what friction level of pads you choose. . . . . . . .

Do NOT worry about drilled rotors for occasional Drag or auto-X use, or rare track days on OE tires. They last almost as long as slotted in lower-temp-short-session uses.......if you want ****, cheap rotors to drive to shows, coffees, and cruise-ins, GO FOR IT! JonB

Good info from Dan C. as always. Not a fan of drilled rotors , but then I track my cars alot and have destroyed drilled rotors when I did not know better. If you are going to just use them for cruises, etc. like Jon commented on, they are great bling, but I would respectfully disagree and go along with Dan C. Nine Ball and Steve 911 , if you are going to track the car. The reason is simple, even if you only do it occasionally , there is no way for us to ascertain how hard or deep you brake into corners. Fairly early in my track career I destroyed a set of drilled rotors in one 30 minute session , so that is part of my bias. Recently I had a manufacturer ( not listed above ) swear I would not have any issues with his drilled rotors on one of my other cars. They lasted me three days at a NASA event and I cracked the crap out of them and I let the manufacturer know my fears were well founded ( they were even two piece rotors ). Actually had to go back to the stock one piece rotors to finish my last sessions.

I don't see that we disagree at all....... Car-show-no-abuse cruiser cars look GREAT with slotted-drilled rotors. And some great marques feature them as OE or optional. Nothing intrinsically wrong with holey-rotors or the feds would not allow them!. You DO get what you pay for if you choose cheap-Chinese-metal.

The OP did not state how or where he drives! THAT ANSWER ALONE should result in options open for him.

steve911

I agree with u, but I am not intended to track my viper, thanks alot


XSTAR_007

I can tell that Bear has a good reputation with EBC products

Wiretech

I completely agree with u, will never take a chance on braking sys

cubican

Sounds like great set up, are u tracking your snake? or only cruising ?

unreelviper

+3 so far including u tried ans satisfied with Baer Eradispeed, but sounds like EBC has more than 1 type of pads, whats the difference ?

Dan Cragin

I really appreciate your reply, very helpful and I couldn't agree any more lol. and exactly I will get what I pay for as I noticed now three members tried Baer Eradispeed and I believe they are satisfied, so I think it depends on the brand. I am not a track guy and I do not drive my viper frequently its always parked in my garage for most of the time due to my duty time and studying. I like the fact that how drilled rotors looks like but I posted the thread to learn from everybody's experience as I keep hearing that drilled rotors are not so good. now I got it why the ACR comes from the manufacturer with slotted not drilled. What brand do recommend for slotted ? stoptech ?

pdub

why ? what is the material for the manufacturer lines ?

thanks

Nine Ball

I agree with u and with Dan Cragin, specialy if I will go for track, what do u recommend for slotted ? I want to see all options around me

JonB

u were right, I will not go for tracking, only cruising probably drag, only minor tasks lol, and with your reply its +4 for Baer Eradispeed

Bill Pemberton Woodhouse

oh man that was a bad experience with drilled, but thanks for sharing. I really do car about how they look, but not only this, I also has to take into consideration the weight reduction and overall performance for the rotors that's why I posted my thread

JonB

exactly, but as i mentioned for street only not tracking

best regards to all

Track/slotted 2 piece --- really impressed with Girodisc as they are made in the US of A, and are less than Stoptech, but are of equal quality - imho.

Nice answer to all who responded to your question and that sure answered your desires quite well, good luck!

thanks Bill,

I checked them up, they look great

price is 950 per set

As far as I know,there are no rotors being cast in the USA,where is the foundry that these rotors are being made in the USA-orare they just machined in the USA

Bill Pemberton Woodhouse said:

Track/slotted 2 piece --- really impressed with Girodisc as they are made in the US of A, and are less than Stoptech, but are of equal quality - imho.

Nice answer to all who responded to your question and that sure answered your desires quite well, good luck!

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The ss brake lines have a better "feel", more solid and stays consistent especially if you ever track the car ($170 ebay). The original rubber lines can expand when heated.

Also, i am very pleased with the Girodisc/Euroteck rotors as well. I was looking at them or the Stoptech rotors but went with the slotted Girodisc from Woodhouse because i preferred the look of the hats better. Mine have a dark silver hat, not black like the photo above.

Lastly, I went with Hawk HPS brake pads ($250 Tirerack).

The car brakes well now. Very solid and little pedal movement, also less brake dust. The rotors look great and weigh a lot less than oem.

steve911 said:

Drilled rotors are for looks mainly and NOT for any serious usage where you will build up heat as they WILL crack. If you need bling just buy the slotted ones.

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Yep what he said.

Drilled look sweet but they cracked on my car. I ordered the slotted from Summit.

Just a note, those Girodisc's are nice rotors. I used them on German cars with good success. They are $950- per axle $1900 a set. Partsrack can do better than that.

kenphjr,

No Girodisc are 100% done in the US. The foundries are in the US and they machine in house. They did this out of consistency and the ability to control product , since in years past they were done outside America. It was one of our reasons to start carrying them and I completely destroyed a set of rotors that came from Down Under, and going even faster the Girodiscs stood tall. I was pretty sure after their performance that I needed to Anglicize their name just like we did with the Greek Sub -- these are HeroDiscs in my estimation!!

Girodisc is based here in WA. Formerly in Costa-Mesa CA. GDisc makes gorgeous, ****, high-quality rotors. Plain, Slotted and drilled. All have the 'scalloped' aluminum hats. Color options too.

There are only 3 foundries pouring rotor steel in USA, and GD uses one of these. GD also makes 'private label' rotors, and so you can find other names (like euro-tek) on GD rotors.

GDisc is an example of 'having your cake and eating it, too' with rotors that are functional, track-worthy, AND ****.

We price them very close to our LOW price on StopTech. But still $400 more per set than Baers! (best value)

JonB

Bill and Jon B- Thank you for your response to my question and enlightening me-I was under the impression that most of these companies were using blanks made in China and just assembling and machining them in the US-It;s really good to know that this company is pure USA -Will be my next choice for sure!

No problem Kenphjr, glad to help, just wanted you to know as great product and believe they are worth the extra - I am ******* rotors and these babies stand up!!!

thanks to all of u guys for your discussion and useful conversations,

pdub

I will go for for those SS braided lines, already contacted Toddy @ BBG for his ACR-X lines

Another vote here for GiroDisc as well- even have a set on my own car. Have sold many sets of them over the years, never a complaint. StopTech & Brembo are great as well, though personally I think the GiroDisc looks better.

I agree with the experts in this thread - drilled rotors are only for looks. Even if you don't track them, they'll probably develop hairline cracks from just street (racing) use. I've destroyed every set of quality, name brand drilled rotors I've ever owned.

Stick with quality slotted rotors.