BBK: upgrade stock IS250 Brakes to 2019 GS350 F-Sport Brakes
#46
It will definitely depend a lot on the wheel, there are definitely some OE 18's that can clear these as I've seen them on some GS's for winter setups. Disappointing the early IS wheels aren't one of them. I suspect 3IS 18's may clear, but again, haven't tried myself.
Do you have any other pictures showing the backing plate clearance? I haven't seen the factory Mark X setup up close, but the fitment should be the same for both. If it's touching that would seem odd. :\
Jeff
Do you have any other pictures showing the backing plate clearance? I haven't seen the factory Mark X setup up close, but the fitment should be the same for both. If it's touching that would seem odd. :\
Jeff
#47
#49
I think the other 18" OEM options (Gspider, Xpackage, etc) fit cause the 4GS guys run some of these on their winter setups.
#51
I may try to take the IS-F backing plate off and put a smaller 250 or 350 shield on to test if that's causing it to touch calipers.
I'll see how much time I have between work at home, screaming home schooled children, and nagging wife to look into it.
#52
Lexus Test Driver
iTrader: (2)
#54
Moderator
iTrader: (10)
So I thought was interesting that the IS-F backing plate/dust shield doesn't have the "bump-out" like the 350 one to catch more air. Perhaps because at the point of the 14" rotors that they don't reach a certain temp needing to be cooler by air as much as the 350s? Anyhow, well done sir!
#55
So I thought was interesting that the IS-F backing plate/dust shield doesn't have the "bump-out" like the 350 one to catch more air. Perhaps because at the point of the 14" rotors that they don't reach a certain temp needing to be cooler by air as much as the 350s? Anyhow, well done sir!
The IS-F shields are about 1/4-inch bigger than they need to be for the GS/RC rotors, probably because IS-F is 360mm vs. 356mm?
I'm hoping the shields was the cause of the wheel hitting the caliper, I am hoping to test that this weekend, but first removing the caliper and putting wheel on to see if it it centers and clears the shield. If it is touching, I may try to fold the lip of the shield with some clamps to reduce diameter to clear, then try the caliper clearance again.
#57
So I got a spare from GS350 Fsport and got a solution for the 06-08 OEM 18s to fit.
After research and checking with others, the 09+ wheels and all the optional wheels (ISP, Gspiders, X-package) should fit.
It the poor design and taper on the 06-08 that causes the clearance issues.
After research and checking with others, the 09+ wheels and all the optional wheels (ISP, Gspiders, X-package) should fit.
It the poor design and taper on the 06-08 that causes the clearance issues.
#58
Lead Lap
iTrader: (5)
So I got a spare from GS350 Fsport and got a solution for the 06-08 OEM 18s to fit.
After research and checking with others, the 09+ wheels and all the optional wheels (ISP, Gspiders, X-package) should fit.
It the poor design and taper on the 06-08 that causes the clearance issues.
https://youtu.be/TmEAJ6egpJg
After research and checking with others, the 09+ wheels and all the optional wheels (ISP, Gspiders, X-package) should fit.
It the poor design and taper on the 06-08 that causes the clearance issues.
https://youtu.be/TmEAJ6egpJg
#60
Guess its select wheels then. There was another guy on one of the FB groups who had 2012 F-sport 10 spoke and they clear his ISF setup (which is larger than the GS F-sport).