Buying new OEM rear swaybar. Buying coupe sport specific bar
#16
Registered Member
Thread Starter
There is certainly a difference between the RWD and the Sport Coupe.
If you go to Infiniti USA eStore, type in a VIN number from the sport package rwd sedan AND the VIN number from the regular/non sport rwd sedan it is the exact same part number for the rear sway bar. Both the regular rwd sedan and the sport rwd sedan rear sway bar is the same.
The true sport rear sway bar is the coupe sport rwd. If you type in a rwd sport package coupe that gives you a completely different part number for the rear sway bar compared to the part number of the sport and non sport sedan.
Also, the strip of paint on the regular rwd sedan and the sport rwd sedan has a strip of white paint, the strip of paint of the awd has a strip of orange paint, and the strip of paint on the sport coupe has a strip of blue paint.
So to conclude:
rwd sport sedan and rwd non-sport sedan= same rear sway bar
sport rwd coupe= different from the rest.
Now, I do not know what the difference is, but I do know there is a difference. I just hope the rwd sport coupe rear sway bar is not too stiff that my rear-end of my awd will start swinging during regular driving in snow, slow regular driving.
If you go to Infiniti USA eStore, type in a VIN number from the sport package rwd sedan AND the VIN number from the regular/non sport rwd sedan it is the exact same part number for the rear sway bar. Both the regular rwd sedan and the sport rwd sedan rear sway bar is the same.
The true sport rear sway bar is the coupe sport rwd. If you type in a rwd sport package coupe that gives you a completely different part number for the rear sway bar compared to the part number of the sport and non sport sedan.
Also, the strip of paint on the regular rwd sedan and the sport rwd sedan has a strip of white paint, the strip of paint of the awd has a strip of orange paint, and the strip of paint on the sport coupe has a strip of blue paint.
So to conclude:
rwd sport sedan and rwd non-sport sedan= same rear sway bar
sport rwd coupe= different from the rest.
Now, I do not know what the difference is, but I do know there is a difference. I just hope the rwd sport coupe rear sway bar is not too stiff that my rear-end of my awd will start swinging during regular driving in snow, slow regular driving.
#18
Registered Member
There is certainly a difference between the RWD and the Sport Coupe.
If you go to Infiniti USA eStore, type in a VIN number from the sport package rwd sedan AND the VIN number from the regular/non sport rwd sedan it is the exact same part number for the rear sway bar. Both the regular rwd sedan and the sport rwd sedan rear sway bar is the same.
The true sport rear sway bar is the coupe sport rwd. If you type in a rwd sport package coupe that gives you a completely different part number for the rear sway bar compared to the part number of the sport and non sport sedan.
Also, the strip of paint on the regular rwd sedan and the sport rwd sedan has a strip of white paint, the strip of paint of the awd has a strip of orange paint, and the strip of paint on the sport coupe has a strip of blue paint.
So to conclude:
rwd sport sedan and rwd non-sport sedan= same rear sway bar
sport rwd coupe= different from the rest.
Now, I do not know what the difference is, but I do know there is a difference. I just hope the rwd sport coupe rear sway bar is not too stiff that my rear-end of my awd will start swinging during regular driving in snow, slow regular driving.
If you go to Infiniti USA eStore, type in a VIN number from the sport package rwd sedan AND the VIN number from the regular/non sport rwd sedan it is the exact same part number for the rear sway bar. Both the regular rwd sedan and the sport rwd sedan rear sway bar is the same.
The true sport rear sway bar is the coupe sport rwd. If you type in a rwd sport package coupe that gives you a completely different part number for the rear sway bar compared to the part number of the sport and non sport sedan.
Also, the strip of paint on the regular rwd sedan and the sport rwd sedan has a strip of white paint, the strip of paint of the awd has a strip of orange paint, and the strip of paint on the sport coupe has a strip of blue paint.
So to conclude:
rwd sport sedan and rwd non-sport sedan= same rear sway bar
sport rwd coupe= different from the rest.
Now, I do not know what the difference is, but I do know there is a difference. I just hope the rwd sport coupe rear sway bar is not too stiff that my rear-end of my awd will start swinging during regular driving in snow, slow regular driving.
#20
Registered Member
Thread Starter
I do not know where the IPL Convertible sway plays into it. I do know when I type in a VIN number for the rwd sport coupe that it pulls up the IPL coupe rear sway bar. So, I believe the rwd sport coupe= IPL coupe rear sway bar.
#22
Registered Member
Update. I got it installed.
Did not do a lot of driving yet. But, wish I would of put on the standard 2wd sedan rsb instead of the sport coupe 2wd rsb.
In the small example, and I do not drive aggressive, going around regular turns it does seem more planted. However, to me, it feels the rear end is more prone to swinging out if I was in an emergency situation or when the snow starts to come. During regular turns it feels more planted but also more skittish if that makes any sense.
Also, would the sport coupe 2wd rsb make the car feel like the front end gives more then the back end?
Did not do a lot of driving yet. But, wish I would of put on the standard 2wd sedan rsb instead of the sport coupe 2wd rsb.
In the small example, and I do not drive aggressive, going around regular turns it does seem more planted. However, to me, it feels the rear end is more prone to swinging out if I was in an emergency situation or when the snow starts to come. During regular turns it feels more planted but also more skittish if that makes any sense.
Also, would the sport coupe 2wd rsb make the car feel like the front end gives more then the back end?
Got for $40 + shipping off eBay
#23
Registered Member
Thread Starter
This is like the one that I bought:
http://www.ebay.com/itm/08-13-Infini...RXsnM5&vxp=mtr
See the blue strip of paint in the middle.
Last edited by mjnoles1; 09-25-2016 at 07:48 PM.
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Carboy37 (08-24-2016)
#24
Registered Member
I just went to Ebay and pulled up a rear sway bar for the 370Z and I believe that is the same as the base G37. The strip of color in the middle of the bar is a whitish color which is the same as the G37 base bar. The G37 sport coupe bar has a strip of blue as the color.
This is like the one that I bought:
08 13 Infiniti G37 Coupe 2WD Rear Stabilizer Sway Bar w O Active Steering | eBay
See the blue strip of paint in the middle.
I think I should of bought the base G37 sedan sway bar. Would of even out the car better
This is like the one that I bought:
08 13 Infiniti G37 Coupe 2WD Rear Stabilizer Sway Bar w O Active Steering | eBay
See the blue strip of paint in the middle.
I think I should of bought the base G37 sedan sway bar. Would of even out the car better
In regards to questioning if the stiffer RSB would make the front give up more than the rear end, I can't answer that until my RSB is installed. My guess is that you're feeling a difference with the steering weight in corners since not as much weight gets loaded on the front tires.
In my experience with the stock setup, the steering can get overwhelmingly heavy if you corner hard. This is likely because while the car rolls at the back, the front resists that. For example, if you dive into a right curve, the body rolls to the left and as you roll, the steering gets heavier with the front left taking most of that weight transfer. That weight transfer ends up being too much of a load for that tire, intitiating the understeer after turn-in. This setup relies heavily on the front tires and with a soft tire, cause the front outer tread to wear faster.
Please correct me if I'm wrong, but what the stiffer RSB does is distribute that to the rear tires, so in the same example right curve, both the front left and rear left tires handle the weight transfer more evenly. This means that the front tires may not bite as hard when you turn in, but once you are in the actual turn, the grip is more stable as both the front and rears are better working in conjunction to carry you through the turn.
In regards to your observation with the sway bars, you are definitely correct. Just like you did, I cross-checked the vehicle VIN (JN1AZ4EHXBM554774) on Parts.NissanUSA.com for the part number, then looked up the part number found (562301EA0C) on Parts.InfinitiUSA.com
There seems to be some discrepency but I believe you are right.
The RWD Sway Part # 562301EA0C comes up as:
- 2011-2012 6MT RWD Sedan
- 2013 2WD/STD
#26
Registered Member
Thread Starter
#27
Registered User
Bought this the other day, and it appears to be the same light purple, we'll see when I get it next week. Should definitely be an improvement on my stock x bar.
http://www.ebay.com/itm/182253221653?_trksid=p2057872.m2749.l2649&ssPageName=STRK%3AMEBIDX%3AIT
http://www.ebay.com/itm/182253221653?_trksid=p2057872.m2749.l2649&ssPageName=STRK%3AMEBIDX%3AIT
#28
Registered Member
Update again.
Drove on my way to work again and it felt better. The day I picked up my car with the new rsb installed, the car did not feel great with it on. I checked my tires PSI the next morning and it was around 31ish PSI all around. I know stock PSI is 33, but I thought I put 36 PSI on all tires. The next day is when I felt the harsh, not terribly stable feeling. This morning I dropped it down to 35 psi (only 2 psi above stock) and the car felt better. Not as rear happy as the day before.
Drove on my way to work again and it felt better. The day I picked up my car with the new rsb installed, the car did not feel great with it on. I checked my tires PSI the next morning and it was around 31ish PSI all around. I know stock PSI is 33, but I thought I put 36 PSI on all tires. The next day is when I felt the harsh, not terribly stable feeling. This morning I dropped it down to 35 psi (only 2 psi above stock) and the car felt better. Not as rear happy as the day before.
It should've been this way stock! Roll is a lot less substatial and steering weight is more consistent - it does not load up too quickly like prior and is much less prone to understeer.
As a result, the car is a lot more eager to turn in like it's on rails! Additionally on straight roads, lane changes no longer produce a left/right shake adding to the feel of stability. Overall, it is very neutral.
Ride quality wise, there may be a barely perceivable increase in choppiness from the rear. However, this is negligible and does not cause any discomfort.
I highly recommend this mod to anyone - it's a must do for any G37x owner not willing to splurge for a Hotchkis set.
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