Reconsidering the Factory Alignment
#271
He told me it was around 7.7 degrees if that makes sense, and it should be put at about 8.5, no sheet he didnt print out cause he didnt realign
#272
The Maker
iTrader: (11)
Mike
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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
#273
No other symptoms or nothing wrong, car was going dawm straight with old conti dw, changed tires for 275/255 combo, put.in an alignment and there we are, ill take some pics of front bushing later, but he told me both side where about 7.7, he told me those things can happen when you change tire size, strange cause I did with my last cars with little effect on driveability
#275
It just gets me that they can't align because of a little tire upsized like that, I've put 245 in the back of my previous bmw that was fitted with 185 stock size, should I take an appointment at dealership to do it even if the car is within spec
#276
Tech Info Resource
Thread Starter
iTrader: (2)
I am running a very similar setup and did not have any caster issues at all with mine.
#277
There is something else going on here. The tire sizes you have are not far enough off the OEM diameters to cause this large a change in caster, and if anything, the rears are smaller, so one would expect slightly MORE caster. Are you lowered with springs or adjustable shocks? Did you ensure the tire pressures are correct?
I am running a very similar setup and did not have any caster issues at all with mine.
I am running a very similar setup and did not have any caster issues at all with mine.
#278
Tech Info Resource
Thread Starter
iTrader: (2)
Check your front shocks for oil leakage. If the shocks are in bad shape, they will let the front end drop - how much depends on how bad the shocks are - and that might be enough to see this kind of caster change.
#279
Lexus Fanatic
I tried these numbers and my car was pulling to the right. Drove it that way for a week and went back for a realignment. Since I told them the specs they charged me again for the second alignment.
As soon as the tech realigned everything to again the car tracked straight and the steering feel even got a little firmer . Took 2 test drives with the tech to make sure the car tracked straight . Always my luck when I screw with my cars. I know all this is reaching a compromise but considering I do a lot of track days and my tires will never last more than 8-10k miles I decided its no longer a priority to stretch what is already going to burn out much faster. Glad I have the USRS and I am ready to kill some tires at the track LOL
Lobux surprised you have not replaced your LCA yet.
As soon as the tech realigned everything to again the car tracked straight and the steering feel even got a little firmer . Took 2 test drives with the tech to make sure the car tracked straight . Always my luck when I screw with my cars. I know all this is reaching a compromise but considering I do a lot of track days and my tires will never last more than 8-10k miles I decided its no longer a priority to stretch what is already going to burn out much faster. Glad I have the USRS and I am ready to kill some tires at the track LOL
Lobux surprised you have not replaced your LCA yet.
#280
Tech Info Resource
Thread Starter
iTrader: (2)
I tried these numbers and my car was pulling to the right. Drove it that way for a week and went back for a realignment. Since I told them the specs they charged me again for the second alignment.
As soon as the tech realigned everything to again the car tracked straight and the steering feel even got a little firmer . Took 2 test drives with the tech to make sure the car tracked straight . Always my luck when I screw with my cars. I know all this is reaching a compromise but considering I do a lot of track days and my tires will never last more than 8-10k miles I decided its no longer a priority to stretch what is already going to burn out much faster. Glad I have the USRS and I am ready to kill some tires at the track LOL
Lobux surprised you have not replaced your LCA yet.
As soon as the tech realigned everything to again the car tracked straight and the steering feel even got a little firmer . Took 2 test drives with the tech to make sure the car tracked straight . Always my luck when I screw with my cars. I know all this is reaching a compromise but considering I do a lot of track days and my tires will never last more than 8-10k miles I decided its no longer a priority to stretch what is already going to burn out much faster. Glad I have the USRS and I am ready to kill some tires at the track LOL
Lobux surprised you have not replaced your LCA yet.
I have them and they are getting installed. I just decided to take off the condom and do both front and rear at the same time.
#281
#282
Tech Info Resource
Thread Starter
iTrader: (2)
Bushings are in. Both front LCA bushings, and the differential bushings are installed along with the OS Giken LSD. The steering feels totally different, more direct and instantaneous. Braking is dramatically better, and wheel hop is eliminated. I was able to skate the back end under acceleration in the wet without VDIM jumping in and spoiling the fun. Very impressive results. Big props to Mike at Figs for getting everything I needed and helping out with some install questions. I am not kidding when I say it does not feel like the same car. NVH is subjectively unchanged - I am on a 900 mile road trip home right now over some really bad Interstate in Illinois and it feels just as harsh as it did when I drove up from Atlanta.
Last edited by lobuxracer; 12-23-22 at 10:13 AM.
#283
Lexus Champion
iTrader: (20)
Bushings are in. Both front LCA bushings, and the differential bushings are installed along with the OS Giken LSD. The steering feels totally different, more direct and instantaneous. Braking is dramatically better, and wheel hop is eliminated. I was able to skate the back end under acceleration in the wet without VDIM jumping in and spoiling the fun. Very impressive results. Big props to Mike at Figs for getting everything I needed and helping out with some install questions. I am not kidding when I say it does not feel like the same car. NVH is subjectively unchanged - I am on a 900 mile road trip home right now over some really bad Interstate in Illinois and it feels just as harsh as it did when I drove up from Atlanta.
#284
Bushings are in. Both front LCA bushings, and the differential bushings are installed along with the OS Giken LSD. The steering feels totally different, more direct and instantaneous. Braking is dramatically better, and wheel hop is eliminated. I was able to skate the back end under acceleration in the wet without VDIM jumping in and spoiling the fun. Very impressive results. Big props to Mike at Figs for getting everything I needed and helping out with some install questions. I am not kidding when I say it does not feel like the same car. NVH is subjectively unchanged - I am on a 900 mile road trip home right now over some really bad Interstate in Illinois and it feels just as harsh as it did when I drove up from Atlanta.
Hopefully you'll consider getting the revised IS-F Steering ECU to complement the steering feel improvements you're noticing with the FIGS LCA bushings.
#285
Pole Position
Bushings are in. Both front LCA bushings, and the differential bushings are installed along with the OS Giken LSD. The steering feels totally different, more direct and instantaneous. Braking is dramatically better, and wheel hop is eliminated. I was able to skate the back end under acceleration in the wet without VDIM jumping in and spoiling the fun. Very impressive results. Big props to Mike at Figs for getting everything I needed and helping out with some install questions. I am not kidding when I say it does not feel like the same car. NVH is subjectively unchanged - I am on a 900 mile road trip home right now over some really bad Interstate in Illinois and it feels just as harsh as it did when I drove up from Atlanta.