What did you do to your Supra today?

[J29DB03]

Harbor Freight brake kit. $48. Ive used this stupid thing so many times.
https://www.harborfreight.com/disc-brake-pad-and-caliper-service-tool-kit-11-piece-63264.html

Huh, never knew of such a kit. Quick-Grip always did the job for me. May be picking this up in the future.

 

[FuzzyRev]

I'm planning on doing 10+ track events this Summer and cost is definitely a consideration as I expect to burn through these rotors in no time. Also I ordered from FCP Euro (about an hours drive from my house) so I'll take advantage of their outstanding return policy and return these rotors for "free" new ones when they're done.

If they're going to be replaced for "free" anyways, why wouldn't you just buy the better ones out of the gate? Just thinking out loud again, and I'm very curious as to the weight difference between them. I know extra unsprung mass makes an exponential difference in the behavior of the steering & suspension systems.

 

[decodeddiesel]

If they're going to be replaced for "free" anyways, why wouldn't you just buy the better ones out of the gate?

Because I'm a cheap bastard I guess. ? Honestly the very minor benefits of the Brembo OEM rotors just aren't worth the added cost in my opinion. Especially given that there's at least one track days worth of $$$ delta.

Just thinking out loud again, and I'm very curious as to the weight difference between them. I know extra unsprung mass makes an exponential difference in the behavior of the steering & suspension systems.

Unsprung mass is indeed bad, but there's really not much of a weight difference at all. The majority of the mass of the rotor is still concentrated in the same region and the moment of inertia is likely very similar between the two. The lightweight 18" tire/wheel package is going to have WAY more effect on the vehicle dynamics.

 

[FuzzyRev]

Unsprung mass is indeed bad, but there's really not much of a weight difference at all. The majority of the mass of the rotor is still concentrated in the same region and the moment of inertia is likely very similar between the two. The lightweight 18" tire/wheel package is going to have WAY more effect on the vehicle dynamics.

I found out the OE Brembo composite front rotors weigh 12.4 kg (27.337 lbs) each, so I'd love to find the exact weight of the full-cast irons.

 

[razorlab]

I found out the OE Brembo composite front rotors weigh 12.4 kg (27.337 lbs) each, so I'd love to find the exact weight of the full-cast irons.

Around 30 lbs, but like @decodeddiesel stated, the additional weight is in the axle center, so will be less of a noticeable difference if it was out at the outer diameter.

OEM 2 piece:

 

[decodeddiesel]

I mean if we're going really crazy, the OEM pads have probably a pound per corner of mass added to change their natural frequency and avoid vibration, so that's a pound per corner of unsprung mass shedded compared to OEM. ?

I'm sure it'll help me win at my next HDPE! ?????

 

[GRSupraguy]

HKS HIPERMAX springs on default setting with usual supra spec 19s 9.5 +25 and 10.5 +35 tires 265 35 & 305 30

 

[FuzzyRev]

Broke down and finally bought this. Now that it's in, the price IS worth it!

 

[RyanA90]

Broke down and finally bought this. Now that it's in, the price IS worth it!

Love how it gives that subtle accent!

 

[BA9092]

Broke down and finally bought this. Now that it's in, the price IS worth it!

Which one did you go with? Link?

 

[FuzzyRev]

Which one did you go with? Link?

https://www.amazon.com/Dashboard-20...318&sprefix=mk5+supra+dash,aps,83&sr=8-7&th=1

 

[Rocksandblues]

Got to drive a real bmw race car at real track speed and in exchange a real Pirelli GT4 pro driver drove my Supra

 

[SupraTR]

Got to drive a real bmw race car at real track speed and in exchange a real Pirelli GT4 pro driver drove my Supra

I'm assuming the obvious happened - you beat his time in the bmw and he was a solid 5 seconds off your Supra pace? Honestly - that sounds really cool.

 

[Rocksandblues]

I'm assuming the obvious happened - you beat his time in the bmw and he was a solid 5 seconds off your Supra pace? Honestly - that sounds really cool.

No. We both went 75% effort or so. I could have driven that m2 all day. Nothing like a factory race car no matter what we do to ours. The video game steering wheel would take a bit to get used to.

He is a very talented 22 year old. Drives for a team owner that is a friend In Pirelli GT4
Colin garret

 

[FuzzyRev]

Love how it gives that subtle accent!

It's seriously great to look at each day! I'll snap a photo of it in daylight with everything running..