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So I sourced the owners manuals for the 2023 RC F and good news! For 2023 the RC F is getting the same interior we have, and with it comes an Electronic Parking Brake. This in theory means that we would now be able to use the 2023 RC F rear calipers and still preserve our EPB and brake hold function. Using a 2022 and older RC F / GS F rear caliper would eliminate this and flash a warning on the dash. This means that for those of you wanting more braking power, there will now be a 100% OEM option that preserves all the functionality we currently have.
More info here: 2023 Lexus RCF - ClubLexus - Lexus Forum Discussion
So what all do we need to transplant RCF/GSF calipers onto the IS 500- just for the front? It looks like @specONE trimmed the dust shields- what else do we need/need to do? I know the gains are negligible; I just really like the look of them, lol.
So what all do we need to transplant RCF/GSF calipers onto the IS 500- just for the front? It looks like @specONE trimmed the dust shields- what else do we need/need to do? I know the gains are negligible; I just really like the look of them, lol.
Yeah the dust shields need to be trimmed about a couple of inches and that's all, you can also just buy and replace them with rcf dust shields. I also used SS brake but you honestly don't need them. I wouldn't say he gains were negligible though, I've had these rcf brakes since May and they have greatly improved the braking performance. The only downside with oem pads is break dust but the increase in stopping power is very noticeable. I didnt do my rears yet because of the EPB, and some people had the concern the abs might be thrown off but with hard high speed braking the abs has worked perfectly fine. Here some comparison pics from when I installed them:
Yeah the dust shields need to be trimmed about a couple of inches and that's all, you can also just buy and replace them with rcf dust shields. I also used SS brake but you honestly don't need them. I wouldn't say he gains were negligible though, I've had these rcf brakes since May and they have greatly improved the braking performance. The only downside with oem pads is break dust but the increase in stopping power is very noticeable. I didnt do my rears yet because of the EPB, and some people had the concern the abs might be thrown off but with hard high speed braking the abs has worked perfectly fine. Here some comparison pics from when I installed them:
This is all really good news! A little brake dust never scared me- I clean my car weekly lol. Do you have any pictures by chance of the RCF dust shields with your setup- or did you trim? Those blue calipers... just wow! Those are the ones I'm leaning to also. I appreciate your help! I just want to make sure it ends up being a reliable setup as it is a daily and sees a lot of wet weather.
This is all really good news! A little brake dust never scared me- I clean my car weekly lol. Do you have any pictures by chance of the RCF dust shields with your setup- or did you trim? Those blue calipers... just wow! Those are the ones I'm leaning to also. I appreciate your help! I just want to make sure it ends up being a reliable setup as it is a daily and sees a lot of wet weather.
No problem ! I actually trimmed mine, I wanted to use the rcf oem ones but I couldn't get any in time when I installed these so I left it, I don't have a pic of the trimmed edge nor can I get one since the rotors are much bigger so you cannot see it, but when you install it you'll easily be able to tell where you need to trim it, its the indentation part at the top next to where the caliper sits. Other than that they've been solid, brake hold still functions. One thing I did do which isn't needed was flush the entire system with dot 4 fluid, I already had to bleed the 2 front calipers anyways, so I decided why not flush everything with dot 4. Here's another pic installed:
No problem ! I actually trimmed mine, I wanted to use the rcf oem ones but I couldn't get any in time when I installed these so I left it, I don't have a pic of the trimmed edge nor can I get one since the rotors are much bigger so you cannot see it, but when you install it you'll easily be able to tell where you need to trim it, its the indentation part at the top next to where the caliper sits. Other than that they've been solid, brake hold still functions. One thing I did do which isn't needed was flush the entire system with dot 4 fluid, I already had to bleed the 2 front calipers anyways, so I decided why not flush everything with dot 4. Here's another pic installed:
Those are beautiful! Thank you for the info!! I will probably go the same route and do a full flush as well. Do they fit similar to the stock calipers behind the wheels- any spacers needed? Granted I have the enkeis, but the fitment should be similar enough (?)
Those are beautiful! Thank you for the info!! I will probably go the same route and do a full flush as well. Do they fit similar to the stock calipers behind the wheels- any spacers needed? Granted I have the enkeis, but the fitment should be similar enough (?)
Yup, they cleared the BBS with no spacers needed but the fitment is pretty tight. I think the enkeis should be the same, worst case you can always add a 5mm spacer.
The stock rotor is really ****. Mine warps in no time.
Sure it's the rotors and not the driving style and/or pads?
"Warping" is not a problem with the rotor itself, in 99.9% of cases. To get a rotor hot enough to physically deform it would be near-impossible on the street. https://www.motortrend.com/how-to/18...ed-rotor-myth/
12-01-22, 06:00 AM
