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How are you dealing with your front tire wear?
#21
Lexus Test Driver
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Join Date: Mar 2011
Location: Alberta
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Figs is definitely the man for this.
Joe, where can I find pricing on the SPC kit or a place to buy?
#22
Lexus Test Driver
iTrader: (2)
https://www.clublexus.com/forums/clu...and-is300.html
#23
Lead Lap
iTrader: (6)
Ok, I just did some research, and the IS-F and ISx50 share the same A-arm and steering knuckle. I don't know where everyone is getting this information that they are different, but here is proof.
IS-F
http://is.sewellparts.com/oem-catalo...-ISF-2009.html
ISX50
http://is.sewellparts.com/oem-catalo...S350-2009.html
They are exactly the same parts for both cars. I also talked to SPC, and they said that it would work in conjunction with the A-Arm as one of their own. I had the complete SPC A-Arm assembly on my 350z and loved it.
Same with the rear suspension. The camber kits available for the ISX50 will work perfectly on the F. Here is proof. Same Parts.
IS-F
http://is.sewellparts.com/oem-catalo...-ISF-2009.html
ISX50
http://is.sewellparts.com/oem-catalo...S350-2009.html
I just purchased my camber kit from IAP direct using my $75 coupon that I got for the coilovers. Once I get the kit, I will be posting a review on my re-build page for everyone to see. Im also going to order the Megan rear camber kit. I will do the same with that.
IS-F
http://is.sewellparts.com/oem-catalo...-ISF-2009.html
ISX50
http://is.sewellparts.com/oem-catalo...S350-2009.html
They are exactly the same parts for both cars. I also talked to SPC, and they said that it would work in conjunction with the A-Arm as one of their own. I had the complete SPC A-Arm assembly on my 350z and loved it.
Same with the rear suspension. The camber kits available for the ISX50 will work perfectly on the F. Here is proof. Same Parts.
IS-F
http://is.sewellparts.com/oem-catalo...-ISF-2009.html
ISX50
http://is.sewellparts.com/oem-catalo...S350-2009.html
I just purchased my camber kit from IAP direct using my $75 coupon that I got for the coilovers. Once I get the kit, I will be posting a review on my re-build page for everyone to see. Im also going to order the Megan rear camber kit. I will do the same with that.
Last edited by SargeISF; 02-23-12 at 02:59 AM.
#27
The Maker
iTrader: (11)
The Issue with the SPC ball joint is clearance. The top is so tight on the F my concern would be that it would be like the IS300 guys and you would get a nice nut stamp on the upper inner fender.
I will have 2 potential solutions for inner tire wear.
-Adjustable upper for CASTER angle adjustmentso that when the car steers over it does not induce such extreme angle.
-Rear LCA bushing with offset. This will allow further steering angle changes to mitigate the issues.
There will be more bump steer when lowered so the idea is to compensate for it. The tie rod ends mount on the front side meaning it will toe in under compression. So lowered cars should nominally have the toe setting at 0 to negative +.2 degrees to compensate. Tire wear is not all Camber realated unfortunately, espcially at just 2.3 degrees which is about where it ends up with a 1.5" drop
I will have 2 potential solutions for inner tire wear.
-Adjustable upper for CASTER angle adjustmentso that when the car steers over it does not induce such extreme angle.
-Rear LCA bushing with offset. This will allow further steering angle changes to mitigate the issues.
There will be more bump steer when lowered so the idea is to compensate for it. The tie rod ends mount on the front side meaning it will toe in under compression. So lowered cars should nominally have the toe setting at 0 to negative +.2 degrees to compensate. Tire wear is not all Camber realated unfortunately, espcially at just 2.3 degrees which is about where it ends up with a 1.5" drop
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Redefining Lexus Aftermarket Parts Since 2001
-- We are your Lexus suspension experts--
BCR - KW - PENSKE - OHLINS - HKS - GREDDY - STANCEPARTS
Links - Arms - SuperPro Poly Bushings - Solid Bearing Conversions - Motor Mounts
RB BBK's and 2P Rotors, G-Loc pads, Radium Fuel Systems
Custom Fabrication Design and Machining - Industrial 3D Printing - Laser Cutting
2018 USTCC Sportsman Class Champions - 2018 NASA ST5 National Champions
#30
Driver School Candidate
Join Date: Dec 2010
Location: MO
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I just purchased the SPC ball joints today. I will install as soon as they arrive and I will keep everyone updated. I'm running TEIN lowering springs on the front only. Stock springs in the rear.