Wheel/size/offset and tire/size/profile...can be confusing.

Good so far! Mostly street driven and its pretty compliant, need to break them in and have the suspension settle before an alignment so I have a better verdict/impression of them!
Ok Tks only been driving on mine two 2 weeks and had alignment done. I'm sure I'll need to redo it. So far very happy.
What ride height are you set at from ground to fender line? Thanks
 
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Ok Tks only been driving on mine two 2 weeks and had alignment done. I'm sure I'll need to redo it. So far very happy.
What ride height are you set at from ground to fender line? Thanks
Im not sure exactly height wise as I did not install or adjust the coilovers, had a trusted mechanic do it. Actually looking to raise the rears as the car is squatting down on the rear currently. Here's a picture of what it looks like currently. The face concaves do not match so I am actually ordering a new pair of wheels for the rear @ 18x10 +35 offset.
 

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Im not sure exactly height wise as I did not install or adjust the coilovers, had a trusted mechanic do it. Actually looking to raise the rears as the car is squatting down on the rear currently. Here's a picture of what it looks like currently. The face concaves do not match so I am actually ordering a new pair of wheels for the rear @ 18x10 +35 offset.
If you matched the ride height to the front looks like you would be set. Like the color contrast on the wheels goes well with the car.
 
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Got them on finally! Rear could use a more aggressive wheel so im ordering a new pair, probably put a 5 mil spacer in the rear.
Went with continental extremecontact sport 02 in 255/40/18 all around, no rubbing either with the adjustable camber in the front from the riaction coilovers!
Nice setup. What do you have the front camber set to?

We just got Riaction coilovers installed on our G70 over the weekend too. Since we already done Eibach lowering spring install twice, this was pretty much a walk in the park. Although, doing it in 100F Summer heat wave was no joke.

Picked up this set used at a bargain price from a Stinger owner. Needed a bit of TLC, but now good as new! We have a special AutoX event coming up mid-Aug at Eagle Canyon Raceway, dubbed "1 MIllion Cones". :) Should be a good one, especially for testing out the new coilover suspension.

I moved the rear anti-roll bar setting back to the "soft" hole, matching the front. Now that we got proper front camber at -2.0deg and adjustable shocks F&R, which are the right ways to reduce the pesky initial understeer, I wanted the anti-roll bars reset to baseline.

IMO, lightweight wheels, 18" tires with good compliance, coupled with well-damped shocks and stiffer springs, for excellent chassis control, make for optimum grip/handling. Stock setup with under-damped shocks, softs springs, coupled with heavy 19" wheels and stiff sidewall tires, is just @ss backward.
Riaction 1.jpg
Riaction 2.jpg
 
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Nice setup. What do you have the front camber set to?

We just got Riaction coilovers installed on our G70 over the weekend too. Since we already done Eibach lowering spring install twice, this was pretty much a walk in the park. Although, doing it in 100F Summer heat wave was no joke.

Picked up this set used at a bargain price from a Stinger owner. Needed a bit of TLC, but now good as new! We have a special AutoX event coming up mid-Aug at Eagle Canyon Raceway, dubbed "1 MIllion Cones". :) Should be a good one, especially for testing out the new coilover suspension.

I moved the rear anti-roll bar setting back to the "soft" hole, matching the front. Now that we got proper front camber at -2.0deg F&R and adjustable shocks, which are the right ways to reduce the pesky initial understeer, I wanted the anti-roll bars reset to baseline.

IMO, lightweight wheels, 18" tires with good compliance, coupled with well-damped shocks and stiffer springs, for excellent chassis control, make for optimum grip/handling. Stock setup with under-damped shocks, softs springs, coupled with heavy 19" wheels and stiff sidewall tires, is just @ss backward.
View attachment 81461
View attachment 81462
your handling upgrade posts are always entertaining reads. but I wonder, do you sleep well at night?
 
From interior to exterior to high performance - everything you need for your Stinger awaits you...
Nice setup. What do you have the front camber set to?

We just got Riaction coilovers installed on our G70 over the weekend too. Since we already done Eibach lowering spring install twice, this was pretty much a walk in the park. Although, doing it in 100F Summer heat wave was no joke.

Picked up this set used at a bargain price from a Stinger owner. Needed a bit of TLC, but now good as new! We have a special AutoX event coming up mid-Aug at Eagle Canyon Raceway, dubbed "1 MIllion Cones". :) Should be a good one, especially for testing out the new coilover suspension.

I moved the rear anti-roll bar setting back to the "soft" hole, matching the front. Now that we got proper front camber at -2.0deg F&R and adjustable shocks, which are the right ways to reduce the pesky initial understeer, I wanted the anti-roll bars reset to baseline.

IMO, lightweight wheels, 18" tires with good compliance, coupled with well-damped shocks and stiffer springs, for excellent chassis control, make for optimum grip/handling. Stock setup with under-damped shocks, softs springs, coupled with heavy 19" wheels and stiff sidewall tires, is just @ss backward.
View attachment 81461
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I'm not who you were asking but also just installed Riaction coilovers. My camber is set at 0 front and -1 degree rear. Handles beautifully. If I notice any outer tie wear on the front I might go to .5 negative up front. The alignment tech asked me what I wanted to do, track it, drive it this is my daily driver so I wanted longevity on tire wear. No complaints in cornering rock solid. Staggered wheel setup 245 front 285 back on 20s
 

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your handling upgrade posts are always entertaining reads. but I wonder, do you sleep well at night?
I wake up in the middle of the night, from a dream of me having just launched from the starting grid at Norschleife, only to realize I'm in a Toyota Prius... and I forgot to change out the snow tires for track rubber. AHHHH!!!

LOL... I blame this latest upgrade on my son. I wasn't looking forward to braving the heat, but he really wanted to try the coilovers at ECR. Well... it was me that got him into Hi-Perf driving, so I guess one must reap what one sows. :)
 
I'm not who you were asking but also just installed Riaction coilovers. My camber is set at 0 front and -1 degree rear. Handles beautifully. If I notice any outer tie wear on the front I might go to .5 negative up front. The alignment tech asked me what I wanted to do, track it, drive it this is my daily driver so I wanted longevity on tire wear. No complaints in cornering rock solid. Staggered wheel setup 245 front 285 back on 20s
Nice!

0.0F/-1.0R is pretty conservative. Generally, most road cars do spec a little bit more rear camber than front. That imparts a tendency to understeer, which is a safer setup for general road driving. Last things the mfr wants is for a driver to dive into a turn bit too fast, panic-lift the throttle, and the car snap-oversteers into the weeds. The downside is, at faster paces, the car tends to scrub off speed wearing out the front tires going into a turn.

IIRC, stock front camber is -1.0deg. I have to go look at my alignment sheets, but pretty sure both our Stinger and G70 sat at around -1.2 with Eibach lowering springs. I really would prefer -2.5deg front for track alignment, but figured we'll start at -2.0deg. Now that we've got front camber adjustability, we can always dial in more, if necessary.

Riaction makes a good kit, but I'm not liking the dinky 160mm springs on the front. Dunno what the exact free length was when brand new, but ours measured around 155mm, so probably heat-sagged at bit already. I'll most likely upgrade to 7" Swift springs later.
 
Nice!

0.0F/-1.0R is pretty conservative. Generally, most road cars do spec a little bit more rear camber than front. That imparts a tendency to understeer, which is a safer setup for general road driving. Last things the mfr wants is for a driver to dive into a turn bit too fast, panic-lift the throttle, and the car snap-oversteers into the weeds. The downside is, at faster paces, the car tends to scrub off speed wearing out the front tires going into a turn.

IIRC, stock front camber is -1.0deg. I have to go look at my alignment sheets, but pretty sure both our Stinger and G70 sat at around -1.2 with Eibach lowering springs. I really would prefer -2.5deg front for track alignment, but figured we'll start at -2.0deg. Now that we've got front camber adjustability, we can always dial in more, if necessary.

Riaction makes a good kit, but I'm not liking the dinky 160mm springs on the front. Dunno what the exact free length was when brand new, but ours measured around 155mm, so probably heat-sagged at bit already. I'll most likely upgrade to 7" Swift springs later.
With my saggy lowering springs I was about -2.5 in the front but tires wore premature, handling was spot on
 
If you matched the ride height to the front looks like you would be set. Like the color contrast on the wheels goes well with the car.
Yea, I believe that the ride height was set to be matched but only on the suspension end of things, rather than the actual ride height both F/R. Will make the adjustment thursday and post back again!
 
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From interior to exterior to high performance - everything you need for your Stinger awaits you...
Nice setup. What do you have the front camber set to?

We just got Riaction coilovers installed on our G70 over the weekend too. Since we already done Eibach lowering spring install twice, this was pretty much a walk in the park. Although, doing it in 100F Summer heat wave was no joke.

Picked up this set used at a bargain price from a Stinger owner. Needed a bit of TLC, but now good as new! We have a special AutoX event coming up mid-Aug at Eagle Canyon Raceway, dubbed "1 MIllion Cones". :) Should be a good one, especially for testing out the new coilover suspension.

I moved the rear anti-roll bar setting back to the "soft" hole, matching the front. Now that we got proper front camber at -2.0deg F&R and adjustable shocks, which are the right ways to reduce the pesky initial understeer, I wanted the anti-roll bars reset to baseline.

IMO, lightweight wheels, 18" tires with good compliance, coupled with well-damped shocks and stiffer springs, for excellent chassis control, make for optimum grip/handling. Stock setup with under-damped shocks, softs springs, coupled with heavy 19" wheels and stiff sidewall tires, is just @ss backward.
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Installs during heat waves SUCK, oh man. While I didnt get an alignment yet, I did a little phone test with the compass and from the looks of it, the front camber is at about... -4 or so which isn't all that crazy to be honest, rear is sitting a bit more which will be taken out a bit to match the fronts once the raise happens. I originally wanted to run about -4 or so for the mean, racey look and fit but ordered the wrong rear wheel specs haha. Riaction is actually developing a mount to adapt a traditional swift spring design for the rear (no ETA last I asked) so once that is out, im going to increase spring rates to F- 10kg/R - 12kg, so a 2kg increase both front and rear.
 
Installs during heat waves SUCK, oh man. While I didnt get an alignment yet, I did a little phone test with the compass and from the looks of it, the front camber is at about... -4 or so which isn't all that crazy to be honest, rear is sitting a bit more which will be taken out a bit to match the fronts once the raise happens. I originally wanted to run about -4 or so for the mean, racey look and fit but ordered the wrong rear wheel specs haha. Riaction is actually developing a mount to adapt a traditional swift spring design for the rear (no ETA last I asked) so once that is out, im going to increase spring rates to F- 10kg/R - 12kg, so a 2kg increase both front and rear.
With 18" tires, we can get away with a bit more negative camber. However, too much is not good either. Ideally, you want just enough negative camber to offset the change in outside front wheel geometry due to lateral lean and weight transfer, such that - at max lateral g - an even pressure distribution over the entire contact patch produces optimum grip.

I'm okay with the rear springs actually. It's a comparatively large 260mm, so it has a good bit more thermal mass and should also be more linear over it's range of travel than the dinky lil' front 160mm spring. But a Swift upgrade is never a bad thing.

If I had ordered the set new, I would've gone with their 2-way adjustable with remote reservoir. If we like this new setup at ECR, I might just do that. :) Stinger will then get the hand-me-down.
 
With 18" tires, we can get away with a bit more negative camber. However, too much is not good either. Ideally, you want just enough negative camber to offset the change in outside front wheel geometry due to lateral lean and weight transfer, such that - at max lateral g - an even pressure distribution over the entire contact patch produces optimum grip.

I'm okay with the rear springs actually. It's a comparatively large 260mm, so it has a good bit more thermal mass and should also be more linear over it's range of travel than the dinky lil' front 160mm spring. But a Swift upgrade is never a bad thing.

If I had ordered the set new, I would've gone with their 2-way adjustable with remote reservoir. If we like this new setup at ECR, I might just do that. :) Stinger will then get the hand-me-down.
That 2-way setup would be baller for sure.
 
That 2-way setup would be baller for sure.
Yeah, the remote reservoir is also of great benefit, especially for the long 20-min sessions at full-on track days. Shocks absorb energy by turning it into heat, but like any oil, the higher the shock temp the lower the oil viscosity. When I ran the Stinger at MSR Cresson last Oct., the already underdamped stock shocks basically went to mush in the afternoon, with even less damping control. With the remote reservoir, the additional thermal capacity, plus more cooling effect, would really help in long HPDE events like that. Short-duration track sprint and AutoX isn't quite as bad, but it would still help.

That said, the aluminum shock tube of the coilover conducts - and rejects - heat much more readily than the cheap steel OEM strut body. That, in and of itself, is already a big improvement. In fact, the threaded body actually increases cooling surface area by a crap ton. Most folks probably don't realize that "hidden" benefit of coilovers.

The separate rebound and compression damping control is icing on the cake.
 
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Nice!

0.0F/-1.0R is pretty conservative. Generally, most road cars do spec a little bit more rear camber than front. That imparts a tendency to understeer, which is a safer setup for general road driving. Last things the mfr wants is for a driver to dive into a turn bit too fast, panic-lift the throttle, and the car snap-oversteers into the weeds. The downside is, at faster paces, the car tends to scrub off speed wearing out the front tires going into a turn.

IIRC, stock front camber is -1.0deg. I have to go look at my alignment sheets, but pretty sure both our Stinger and G70 sat at around -1.2 with Eibach lowering springs. I really would prefer -2.5deg front for track alignment, but figured we'll start at -2.0deg. Now that we've got front camber adjustability, we can always dial in more, if necessary.

Riaction makes a good kit, but I'm not liking the dinky 160mm springs on the front. Dunno what the exact free length was when brand new, but ours measured around 155mm, so probably heat-sagged at bit already. I'll most likely upgrade to 7" Swift springs later.
Ride height adjustment done today along with an alignment! Turns out I was running much less camber than I thought all around and ended up pulling some out of the rear. Final camber set to -2.7 ish front, -1.5 ish in the rear
 

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From interior to exterior to high performance - everything you need for your Stinger awaits you...
Ride height adjustment done today along with an alignment! Turns out I was running much less camber than I thought all around and ended up pulling some out of the rear. Final camber set to -2.7 ish front, -1.5 ish in the rear
-2.7 for street driving sounds a bit extreme how do you expect your tire wear to be? I'm sure it will handle amazing and can you rotate all four ? I'm stagered so limited there.
 
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Ride height adjustment done today along with an alignment! Turns out I was running much less camber than I thought all around and ended up pulling some out of the rear. Final camber set to -2.7 ish front, -1.5 ish in the rear
255/40R18 has good tire compliance, so you should be okay. Just make sure to set the tire pressure properly - cold 32F 34R are correct for the size, not 36F 39R as listed for OEM 225/45R18.

I would test the cornering attitude any time you make substantial camber settings change. Obviously track is best for that, but you can still do a quick check in a large open parking lot (no lamp poles). Switch ABS and TC off. Get into a relatively tight spinning circle as though you are at a skidpad. Make sure there is enough clearance all around if you do lose control. Get the speed up to where the tires just start chirping, and keep a steady throttle. Take note of how your steering wheel is pointing. It should be slightly into the turn (understeer). If it's pointing straight or even slightly pointing to the outside, you'd better know how to drive with oversteer.

If the lot is wide enough, you can do figure-8's to test transient response. Again, like on a real skidpad:
skid-1.jpg


Last check... while still in that tight turn, lift off the accel pedal suddenly. Let us know what happens. ;)
 
-2.7 for street driving sounds a bit extreme how do you expect your tire wear to be? I'm sure it will handle amazing and can you rotate all four ? I'm stagered so limited there.
-2.7 for street driving is nothing tbh
 
255/40R18 has good tire compliance, so you should be okay. Just make sure to set the tire pressure properly - cold 32F 34R are correct for the size, not 36F 39R as listed for OEM 225/45R18.

I would test the cornering attitude any time you make substantial camber settings change. Obviously track is best for that, but you can still do a quick check in a large open parking lot (no lamp poles). Switch ABS and TC off. Get into a relatively tight spinning circle as though you are at a skidpad. Make sure there is enough clearance all around if you do lose control. Get the speed up to where the tires just start chirping, and keep a steady throttle. Take note of how your steering wheel is pointing. It should be slightly into the turn (understeer). If it's pointing straight or even slightly pointing to the outside, you'd better know how to drive with oversteer.

If the lot is wide enough, you can do figure-8's to test transient response. Again, like on a real skidpad:
skid-1.jpg


Last check... while still in that tight turn, lift off the accel pedal suddenly. Let us know what happens. ;)
I definitely do want to test how it feels with the squared setup compared to stock, this’ll be fun to try
 
-2.7 for street driving is nothing tbh
Socalvn is running 20" wheels and tires, IIRC. The shorter and stiffer sidewalls do make a difference on optimum camber settings. In fact, on every one of my alignment sheets, it lists acceptable ranges for each of the parameters for the 18s I have one. Some of these ranges will most likely be different for 19s and for sure 20s.
 
From interior to exterior to high performance - everything you need for your Stinger awaits you...
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