Girodisc install and review

[KLR STINGER]

Installed the Girodisc rotors and magic pads today. Dead simple install, took less than an hour for both sides. Beautifully made, full floating with anti rattle HW from hat to disc. Great quality and amazing price Girodisc. I paid more than twice this price for basically the exact same thing on my CLS 63. Hit up Nicholas at KHARZ for the hook up! Anyhow, on to install
Steps for rotors:
Remove wheel,
Remove two 17mm caliper retaining bolts from rear of spindle
Remove caliper
Remove OEM rotor phillips retaining screws
Remove OEM rotor.
Install new rotor per included instructions noting left and right orientation.
Install caliper again

Steps for pads:
Use a punch and hammer to knock back alignment pins
Remove retaining spring
Pull out OEM pads
Install new pads in reverse
Note. New pads do not have dampening weights on them like the OEM.

Impressions: after taking the car out on my favorite stretch, I was able to bed them in following the included Girodisc instructions. The dreaded brake wobble (aka warp) from the OEM pad and rotor combo 100% gone. Pedal application is smooth at all speeds. Initial bite seems softer, but during bedding in felt consistent and fade free. It was also -5c so not ideal conditions to test braking. I'll report back on dust and performance over some additional time and temps.

 

[WildBill]

Do the scallops in the rotor engage into the brake hub somehow or does all of the braking load from the rotor get transferred into the hub by those 10 tiny screws?

 

[NS_Stinger]

Do the scallops in the rotor engage into the brake hub somehow or does all of the braking load from the rotor get transferred into the hub by those 10 tiny screws?

Transfers to the screws just like every other 2pc rotor does.

 

[MekstingerGT]

Bump. Do you know the torque specs for the caliper 17mm bolts?

 

[Callum]

I am pretty close to ordering these...I'm glad you posted up. My OE rotors are horribe.

 

[robz32]

Same here. I need a new set of pads and rotors as the dreaded brake wobble/warp issue came back.

Thanks for posting this

 

[Callum]

@KLR STINGER

How are these holding up?

 

[KLR STINGER]

Perfect. Love them. Been on for almost 10k and no hint of wobble

 

[Callum]

Perfect. Love them. Been on for almost 10k and no hint of wobble

This is probably my next upgrade to be honest. The OE 1 pc just look, bleh.

 

[MerlintheMad]

This is probably my next upgrade to be honest. The OE 1 pc just look, bleh.

You'd replace just over looks? A disc is a disc. Holes or slots are just superficial differences, imho.

How they perform is all that matters.

I'll report back on dust and performance over some additional time and temps.

Perfect. Love them. Been on for almost 10k and no hint of wobble

That's pretty sparse "reporting back", and only because somebody else bumped your thread! Heh!?

 

[Manaz]

ou'd replace just over looks? A disc is a disc. Holes or slots are just superficial differences, imho.

How they perform is all that matters.

Lots of us do things to our cars for looks.

That said, slots and dimples can help with performance to a degree - drilled not so much.

For those who think drilled rotors help - not even F1 cars have drilled rotors, and they're absolutely pushing braking limits (OK sure, they use carbon composite rotors). V8 Supercar series in Australia - 3,000lb sedans with slotted (scallops) rotors, not drilled. BTCC cars? Slotted but not drilled. NASCAR (for our US friends) - no drilled rotors, just slotted. WRC cars? Slotted but not drilled rotors.

Anyone seeing a pattern there?

 

[Angel]

You'd replace just over looks? A disc is a disc. Holes or slots are just superficial differences, imho.

How they perform is all that matters.


That's pretty sparse "reporting back", and only because somebody else bumped your thread! Heh!?

I have to disagree that hole or slots are just superficial differences. They have a performance purpose.

The 2 piece rotors save wight which is the biggest. It reduces unsprung weight which allows for faster acceleration and stopping performance as well.

It is pretty well documented the performance advantages on 2 piece rotors and on slots/drills etc....

In my opinion they are worth the money.

 

[Manaz]

The 2 piece rotors save wight which is the biggest. It reduces unsprung weight which allows for faster acceleration and stopping performance as well.

Reduced heat-transfer to the hubs from the brakes is another benefit (maybe not so important on the Stinger, but it's a major reason the MY02 WRX STI I have access to as a track car has 2-piece rotors - to avoid premature death of the tiny 5x100 wheel bearings...).

 

[WildBill]

It is pretty well documented the performance advantages on 2 piece rotors and on slots/drills etc....

I agree on the weight savings and sort of on slots but not on the advantage of drilled rotors. It is simply for looks, they perform worse under stress.

From the testing I have seen the drilled rotors end up making the rotors more fragile. When they are hot from braking and receive thermal shock like hitting a puddle they can crack and the crack always propagates from one of the drilled holes. Trying to find the video, my google foo is failing me but here is this oldie but goodie.

Engineering Explained

 

[NICK_KHAR]

if its any consolation
I have the original set of girodisc
I love them
I tried cquence up front as well and the weight difference is actually noticeable
Went back to girodisc and have put alot of highway races on with them without issue
+ they look great

 

[Angel]

if its any consolation
I have the original set of girodisc
I love them
I tried cquence up front as well and the weight difference is actually noticeable
Went back to girodisc and have put alot of highway races on with them without issue
+ they look great

You need to make the rear , so we have a full set.

 

[Callum]

So @Digiwolf has 3 posts and dislikes nearly everything he reads.

What's the issue bud? The OE rotors are garbage, the warp pretty easily.

 

[Digiwolf]

So @Digiwolf has 3 posts and dislikes nearly everything he reads.

What's the issue bud? The OE rotors are garbage, the warp pretty easily.

If you say so, I had no issues but I do enjoy a little butt hurt action. Nice to meet you.

 

[Callum]

If you say so, I had no issues but I do enjoy a little butt hurt action. Nice to meet you.

I called you out...

lol...enjoy the rest of your day big dog. Thank you for contributing to this community. Please keep up the informative posts

 

[Digiwolf]

I called you out...

lol...enjoy the rest of your day big dog.

Cool story bro, must be on reddit crying about up votes and crap.