Eibach Lowerings springs & 205/45/17 or 215/40/17 tires

[JPGC]

But it's true... The arc that the wheel travels through hasn't changed...

The arc of the wheel may not change, but the spring is shorter. Though lowering springs usually are stiffer, they don't completely compensate for the travel, which is closer to the body and parts, like the fender well, of the car now since the springs are shorter.

 

[JPGC]

I'd love to see some pics of the 215s mounted up.

I will post pics for sure. This is how it looks now. I will take the same pic with the 215/40s on when I get them.

 

[justgotFiSTed]

The arc of the wheel may not change, but the spring is shorter. Though lowering springs usually are stiffer, they don't completely compensate for the travel, which is closer to the body and parts, like the fender well, of the car now since the springs are shorter.

Nothing is any closer for the lowered car than it would be if the higher car was loaded more heavily, driven more aggressively, or encountered a bigger bump. No parts are any closer than they would be during a corresponding point in the higher car's suspension stroke.

 

[re-rx7]

The arc of the wheel may not change, but the spring is shorter. Though lowering springs usually are stiffer, they don't completely compensate for the travel, which is closer to the body and parts, like the fender well, of the car now since the springs are shorter.

Correct. The wheel well sits closer to the tire now and the thickness of tire plays a roll in what will rub and not rub. Def report back. Im on 17x7's with +42 offset. So if thjey fit on those wheels they will fit on mine.

 

[JPGC]

Correct. The wheel well sits closer to the tire now and the thickness of tire plays a roll in what will rub and not rub. Def report back. Im on 17x7's with +42 offset. So if thjey fit on those wheels they will fit on mine.

Lol, I hope the fit without rubbing, we will see

 

[re-rx7]

Nothing is any closer for the lowered car than it would be if the higher car was loaded more heavily, driven more aggressively, or encountered a bigger bump. No parts are any closer than they would be during a corresponding point in the higher car's suspension stroke.

Is that why people with 205/45s can run ok with stock springs but rub when lowered?

 

[justgotFiSTed]

Is that why people with 205/45s can run ok with stock springs but rub when lowered?

If 205/45-17s rub when lowered, they'd rub at stock height as well... at an autocross, at the track, or if you're having fun on a tight canyon road and hit a pothole. Or have fat friends...

 

[JPGC]

Nothing is any closer for the lowered car than it would be if the higher car was loaded more heavily, driven more aggressively, or encountered a bigger bump. No parts are any closer than they would be during a corresponding point in the higher car's suspension stroke.

I don't know what your experience with lowering springs is, but I can tell you that I've changed at least a dozen sets of springs on different vehicles. I'm not talking about coil overs, but lowering springs. In ranges from 1.1" lowered to 2.5" lowered. Springs can make a difference on if you rub or not...even with stock tires and wheels, depending on how much your lowered. If your talking about a vehicle with weight added or a vehicle with different wheels with different sizes and offsets, it just adds to the complication.

 

[justgotFiSTed]

I'm very curious what vehicle would rub with stock wheels and tires... Sounds like an engineer needs to be fired...

 

[re-rx7]

I don't know what your experience with lowering springs is, but I can tell you that I've changed at least a dozen sets of springs on different vehicles. I'm not talking about coil overs, but lowering springs. In ranges from 1.1" lowered to 2.5" lowered. Springs can make a difference on if you rub or not...even with stock tires and wheels, depending on how much your lowered. If your talking about a vehicle with weight added or a vehicle with different wheels with different sizes and offsets, it just adds to the complication.

Ignore him. Anyway man we are both runnin Cobb springs and the only diff in our wheels is 1/2'' of which yours is wider so if they fit on that car it will fit on mine LOL. Cant wait to see them. Also review on the tires!

 

[re-rx7]

I'm very curious what vehicle would rub with stock wheels and tires... Sounds like an engineer needs to be fired...

Stock is 205/40....not 205/45. 205/45 have been shown to rub on lowered cars. Stock height they are fine.

 

[JPGC]

I'm very curious what vehicle would rub with stock wheels and tires... Sounds like an engineer needs to be fired...

It's rare because most stock vehicles will bottom out their springs or bottom out on the springs bump stop before rubbing. Aftermarket lowering springs will a lot of times come with a shorter bump stop. Different brands of lowering springs have different designs and a lot of them will have fewer coils which will physically allow them to bottom out closer to the chassis which increases the chances of them rubbing.

 

[JPGC]

Ignore him. Anyway man we are both runnin Cobb springs and the only diff in our wheels is 1/2'' of which yours is wider so if they fit on that car it will fit on mine LOL. Cant wait to see them. Also review on the tires!

I have mountune springs which are very similar to Cobb. Some specs that I've seen show mine to be slightly lower. Which is good for you if its true because if I can run them without issue, then you should be able to too. Lol, I said to too I don't know why that's funny...

 

[re-rx7]

I have mountune springs which are very similar to Cobb. Some specs that I've seen show mine to be slightly lower. Which is good for you if its true because if I can run them without issue, then you should be able to too. Lol, I said to too I don't know why that's funny...

Yea I hear the mountunes run a little bit lower. Lol LE sports look like a gd tire, tread design is basic but treadwear says it might be good. Im just worried about the width rubbing the fender liners.

 

[justgotFiSTed]

It's rare because most stock vehicles will bottom out their springs or bottom out on the springs bump stop before rubbing. Aftermarket lowering springs will a lot of times come with a shorter bump stop. Different brands of lowering springs have different designs and a lot of them will have fewer coils which will physically allow them to bottom out closer to the chassis which increases the chances of them rubbing.

That totally make sense. The shorter bumpstops issue COULD cause rubbing, absolutely, due to bottoming farther in the stroke and allowing the suspension to be in places it wasn't originally designed to be. I hadn't factored in coil bind, I didn't realize these cars might coil bind before the shock bottomed.

It is helps any, I am running some sticky 205/50-16, 42mm offset, on one set of wheels.

205/40-17= 596mm height
205/50-16= 611mm height (2.6% taller than stock)---one of my track setups
215/40-17= 604mm height (1.3% taller than stock)---your new size

So basically, I've been running a setup that has TWICE the vertical deviation from stock that you're going to run with ZERO issues at the track/autocross/heavily loaded, etc. I would guess you won't have any problems. I can't comment on the extra 5mm less clearance on each side though.

 

[JPGC]

Yea I hear the mountunes run a little bit lower. Lol LE sports look like a gd tire, tread design is basic but treadwear says it might be good. Im just worried about the width rubbing the fender liners.

The reviews on them look as good as any. The threadwear seems about right...not to hard or too soft. It's only about half an inch on each side of the tire and about a half inch taller. I looked at the clearance yesterday, and it should be fine. I actually was measuring the thread I have left on my stockers and it sucks, but I didn't realize how low they were, lol.

 

[re-rx7]

The reviews on them look as good as any. The threadwear seems about right...not to hard or too soft. It's only about half an inch on each side of the tire and about a half inch taller. I looked at the clearance yesterday, and it should be fine. I actually was measuring the thread I have left on my stockers and it sucks, but I didn't realize how low they were, lol.

I guess compression will tell the story once you get them mounted. I still have gd tread on my OE's just getting ready to swap them when tax season gets here that way it isnt a burden.

 

[JPGC]

That totally make sense. The shorter bumpstops issue COULD cause rubbing, absolutely, due to bottoming farther in the stroke and allowing the suspension to be in places it wasn't originally designed to be. I hadn't factored in coil bind, I didn't realize these cars might coil bind before the shock bottomed.

It is helps any, I am running some sticky 205/50-16, 42mm offset, on one set of wheels.

205/40-17= 596mm height
205/50-16= 611mm height (2.6% taller than stock)---one of my track setups
215/40-17= 604mm height (1.3% taller than stock)---your new size

So basically, I've been running a setup that has TWICE the vertical deviation from stock that you're going to run with ZERO issues at the track/autocross/heavily loaded, etc. I would guess you won't have any problems. I can't comment on the extra 5mm less clearance on each side though.

To be correct, I said that they can, not that they will cause rubbing. For the most part, it takes a pretty good bump to cause a tire to bottom out as long as your tires and wheels are similar or the same specs to the stockers..it's just that much easier with lowering springs the 42mm offset helps with the inside. I easily have 5 mm to spare on the outside. We will see though. Thanks for the measurements!

 

[re-rx7]

Just a thought...215/35-17's LOL

 

[JPGC]

Just a thought...215/35-17's LOL

Lol, no, just no