brake sizes

968 Views 14 Replies 9 Participants Last post by YELLLEX, Jul 20, 2001

LexusIS4U2NV

Discussion Starter · Jul 10, 2001

i have a quick question, how big are the front and rear rotors on the IS 300 and how much larger are the rotors front and rear on the toyota supra.

thanks for any help in advance
dennis potts

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1 - 15 of 15 Posts

fusion

· #2 · Jul 10, 2001

the rotors on the IS300 are as follows:

front - 11.65in. vented

rear - 12.09in. solid

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LexusIS4U2NV

Discussion Starter · #3 · Jul 10, 2001

thanks fusion but one more thing is that all the way around, or is the front bigger,

thanks again
dennis potts

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DJ

· #4 · Jul 18, 2001

The rear is bigger.

Originally posted by LexusIS4U2NV:
thanks fusion but one more thing is that all the way around, or is the front bigger,

thanks again
dennis potts

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Sheldon

· #5 · Jul 18, 2001

Supra rotors are around 13" front and back, with 4 pots up front. They are huge for stock brakes.

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YELLLEX

· #6 · Jul 18, 2001

Originally posted by Sheldon:
[QB]Supra rotors are around 13" front and back, with 4 pots up front. They are huge for stock brakes.

will the SUPRA BRAKES fit on the IS300?? HMMMMM. Maybe I will try the SUPRA rotors. Anyone change their rotors yet? What did you use? Oh, with Supra rotor, do you need to change to the 18in. rims?

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ADREY

· #7 · Jul 19, 2001

by the way, yes they do fit. take a look... http://photos.yahoo.com/metdfd

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ADREY

· #8 · Jul 19, 2001

also if anyone is intrested in a front set, there is one for sale on ebay right now for a great deal. look under toyota supra turbo

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LexusIS886

· #9 · Jul 19, 2001

Wouldn't it make more sense that if the front calipers are bigger then the rotors should be bigger too? Why do I always have these questions!

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Thanks ADREY for the info. Trying to get these rotors off EBAY. Thanks again. Did you install them yourself? Skill level needed? I've changed the ROTORS on my 98 ITR 100 times and it took ALL of 5min.

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YELLLEX

· #11 · Jul 19, 2001

Originally posted by YELLLEX:
[QB]Thanks ADREY for the info. Trying to get these rotors off EBAY. Thanks again. Did you install them yourself? Skill level needed? I've changed the ROTORS on my 98 ITR 100 times and it took ALL of 5min.

ADREY, are you talking about the BREMBO's on EBAY?

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TEG

· #12 · Jul 19, 2001

It is a little unusual to have larger rear rotors, but Toyota seems to know what they are doing. The IS300 braking performance has been considered excellent by all the magazines that have tested the car.

I think many of the Lexus cars share the same braking system. Also (I could be wrong) but I thought some year of Supra also had larger rear rotors.

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LexusIS886

· #13 · Jul 20, 2001

Originally posted by TEG:
It is a little unusual to have larger rear rotors, but Toyota seems to know what they are doing. The IS300 braking performance has been considered excellent by all the magazines that have tested the car.

I think many of the Lexus cars share the same braking system. Also (I could be wrong) but I thought some year of Supra also had larger rear rotors.

Interesting but can someone explain why?

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JW

· #14 · Jul 20, 2001

I asked the same question (on a different forum) when this forum was in its infancy, and if I recall correctly, the answer I was given was that the larger rear brake rotor would facilitate cooling since it's a solid disc instead of ventilated. But other than that, beats the hell outta me.

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YELLLEX

· #15 · Jul 20, 2001

FYI the BREMBO rotors on EBAY the are for the Toyota Supra Turbo do NOT fit the IS300 according to the seller. OH WELL.

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