Figs or RR Racing LCA bushing?
02-04-18, 01:34 PM
#16
^^^^As I indicated above they do effect NVH, so yes you will feel more of the road. Of course no effect shock on damping. One other advantage no one has mentioned is much reduced brake dive. On my ISF, brake dive has all but been eliminated. IMHO, wheel integrity will not be comprised by stiffer bushings.
Lou
Lou
well im going to have to order a pair and try them out. Worst case scenario I don’t like the changes and I switch back to the normal stock ones.
02-04-18, 01:52 PM
#17
I have Figs 90 bushings, I believe that is the only kind they currently produce, I believe the softer version went away after the first run. Anyway, inner tire wear was addressed, steering is sharper, zero impact on the ride quality. I had these for 30k miles. Highly recommend. Back when I got them, I even got some money back with core exchange.
02-04-18, 02:20 PM
#18
Tech Info Resource
iTrader: (2)
Better than all of this, braking near the limit is much improved and the wander the car had before is gone. I have noticed no difference at all in NVH and I replaced all four LCA bushings on the front of my car with Figs 90 durometer bushings.
The OEM suspension isn't even close to "track ready" because the front toes out dramatically under heavy braking. This makes the car feel like it is wandering (or the F/R brake bias is really bad) and reduces front traction while you are slowing from high speeds approaching a low speed corner. It also causes accelerated inside edge wear on the front tires. If you look at the video Figs posted here, it's really obvious the OEM bushing was intended to reduce NVH and nothing more. It couldn't be further from track ready.
All that said, if you trail brake heavily, you might like the bushing from the factory. It does help turn in even if it does compromise braking.
The OEM suspension isn't even close to "track ready" because the front toes out dramatically under heavy braking. This makes the car feel like it is wandering (or the F/R brake bias is really bad) and reduces front traction while you are slowing from high speeds approaching a low speed corner. It also causes accelerated inside edge wear on the front tires. If you look at the video Figs posted here, it's really obvious the OEM bushing was intended to reduce NVH and nothing more. It couldn't be further from track ready.
All that said, if you trail brake heavily, you might like the bushing from the factory. It does help turn in even if it does compromise braking.
02-05-18, 06:49 AM
#20
Pole Position
I have the Figs bushing. Great mod. I'm at 29k miles on the front tires and can see them lasting another 5k-10k miles. Absolutely worth it. I don't notice much if any NVH in the ride. Even if I did, it would be worth it to double the life of the front tires.
02-05-18, 07:32 PM
#21
I installed the RR USRS shortly after buying my car and the added NVH was just a bit more than I cared for. I switched to Figs 90 durometer and couldn't be happier. The Figs are a little more progressive than the RR. The Figs gives you almost all the precision of the RR without some of the added NVH. Perfect compromise for me.
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02-05-18, 09:09 PM
#22
I installed the RR USRS shortly after buying my car and the added NVH was just a bit more than I cared for. I switched to Figs 90 durometer and couldn't be happier. The Figs are a little more progressive than the RR. The Figs gives you almost all the precision of the RR without some of the added NVH. Perfect compromise for me.
V.
02-05-18, 09:25 PM
#23
Driver
Thread Starter
02-08-18, 10:54 AM
#26
Lexus Test Driver
OP, You are driving a 2013, NVH will be pretty much nothing. If you were in a 2008 with factory suspension (know to be harshest) you get a little more but completely acceptable. I went USRS from RR and absolutely love it. You can't really go wrong with either one.
02-08-18, 03:16 PM
#27
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02-08-18, 06:53 PM
#28
Everyone is entitled to their opinion interesting statement "RR racing made me hate the ISF in terms of added NVH." I see you live in North Carolina your roads are no where near as bad as roads I drive on daily into NYC with pot holes, patched pot holes on top of patched pot holes, expansion joints, raised Steel plates that they use to cover section of roads that have pot holes or under construction try hitting one of those at 60 mph, ruts in road, bulges in asphalt, undulating roads. I have RR Racing URSR and daily drive into NYC daily along with other 900,000 people. Is there added NVH yes is as bad as you make it seem I don't know since NVH can be subjective. For me it's not that bad with my daily 42 mile commute. I've now added Superpro urethane bushings all around front ctr arms, rear car arms, trailing arms sway bars etc. Installing urethane bushings added way more NVH than RR Racing URSR bushing did. Once again just my opinion. Both companies make Quality Parts you can't go wrong with either one just find which one suits your driving needs.
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02-08-18, 07:05 PM
#29
Lexus Champion
iTrader: (20)
You are correct FIGS 90&80 durometer bushing will give you less NVH than 95 durometer RR racing bushings. If NVH is concern then go for less aggressive durometer.
Everyone is entitled to their opinion interesting statement "RR racing made me hate the ISF in terms of added NVH." I see you live in North Carolina your roads are no where near as bad as roads I drive on daily into NYC with pot holes, patched pot holes on top of patched pot holes, expansion joints, raised Steel plates that they use to cover section of roads that have pot holes or under construction try hitting one of those at 60 mph, ruts in road, bulges in asphalt, undulating roads. I have RR Racing URSR and daily drive into NYC daily along with other 900,000 people. Is there added NVH yes is as bad as you make it seem I don't know since NVH can be subjective. For me it's not that bad with my daily 42 mile commute. I've now added Superpro urethane bushings all around front ctr arms, rear car arms, trailing arms sway bars etc. Installing urethane bushings added way more NVH than RR Racing URSR bushing did. Once again just my opinion. Both companies make Quality Parts you can't go wrong with either one just find which one suits your driving needs.
Everyone is entitled to their opinion interesting statement "RR racing made me hate the ISF in terms of added NVH." I see you live in North Carolina your roads are no where near as bad as roads I drive on daily into NYC with pot holes, patched pot holes on top of patched pot holes, expansion joints, raised Steel plates that they use to cover section of roads that have pot holes or under construction try hitting one of those at 60 mph, ruts in road, bulges in asphalt, undulating roads. I have RR Racing URSR and daily drive into NYC daily along with other 900,000 people. Is there added NVH yes is as bad as you make it seem I don't know since NVH can be subjective. For me it's not that bad with my daily 42 mile commute. I've now added Superpro urethane bushings all around front ctr arms, rear car arms, trailing arms sway bars etc. Installing urethane bushings added way more NVH than RR Racing URSR bushing did. Once again just my opinion. Both companies make Quality Parts you can't go wrong with either one just find which one suits your driving needs.
Also, both bushings were with BC coils/swift 16/12k springs lowered 2 inches i the front. but rr racing USRS were great in NC like you stated and you are correct with that.