Performance difference between Smart Racing and other high end sway bars?
#17
NASA Racer
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Chris, I have the SRP's as well since Dan did my setup and he favors them. I can't speak to the other bars, but I love the wide range of adjustment and how easy they are to change. I play with my setup all the time.
#18
Drifting
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All of the bars I talked about (SRP, Tarett, or TRG bars) are more robust than the standard Weltmeister bars shown, I wouldn't worry about them failing under normal circumstances.
#19
Three Wheelin'
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No one has commented on how the SRP can be had up to 31mm bar whereas the others only go up to 22/23mm. Are the lever arms that much bigger on the SRP and they're the same net rate at the wheel?
#20
Drifting
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You can get bars for the SRP that are a lot stiffer than the 22mm hollow rate the Tarett, TRG (I think Charlie too) uses. I believe you can get a few different bars with the TRG set up too. If you have a set up that requires something stiffer than the standard 22mm rate you should go with the SRP bars. Most 911's, especially street cars, are happy with the 22mm rate. The Smart bars are really nicely engineered and built race parts but depending on your situation they may not be worth the extra money. I would make sure to reinforce the rear mounts or buy the Wevo mounts no matter which bar you choose, especially if it is a really stiff one. The Wevo mounts aren't cheap but they are very nice and should be a lot stronger than a stock mount that has been reinforced.
All of the bars I talked about are good parts that will get the job done for you. It is pretty cool that we have so many quality sway bar options available for these cars that we can be so nit-picky.
All of the bars I talked about are good parts that will get the job done for you. It is pretty cool that we have so many quality sway bar options available for these cars that we can be so nit-picky.
#21
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^ +1
The stock sway bar mounts WILL fail. The 'improved' stock mounts will fail. A heavily reinforced mount is required. You can plate reinforce the stock mounts, then add a member triangulated up to the torque tube, but it takes some fabrication work. I've not used the Wevo mounts, but everyone says they are plenty strong.
The stock sway bar mounts WILL fail. The 'improved' stock mounts will fail. A heavily reinforced mount is required. You can plate reinforce the stock mounts, then add a member triangulated up to the torque tube, but it takes some fabrication work. I've not used the Wevo mounts, but everyone says they are plenty strong.
#23
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SRP. All the adjustment range you will need, great product, even greater support.
-Garen (87 930)
P.S. get the WEVO mounts as a "while you're in there" upgrade. As others have mentioned, it's not if the stock ones fail it's when they fail...
-Garen (87 930)
P.S. get the WEVO mounts as a "while you're in there" upgrade. As others have mentioned, it's not if the stock ones fail it's when they fail...
#24
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^ +1
The stock sway bar mounts WILL fail. The 'improved' stock mounts will fail. A heavily reinforced mount is required. You can plate reinforce the stock mounts, then add a member triangulated up to the torque tube, but it takes some fabrication work. I've not used the Wevo mounts, but everyone says they are plenty strong.
The stock sway bar mounts WILL fail. The 'improved' stock mounts will fail. A heavily reinforced mount is required. You can plate reinforce the stock mounts, then add a member triangulated up to the torque tube, but it takes some fabrication work. I've not used the Wevo mounts, but everyone says they are plenty strong.
I have the TRG bars and had one of the drop link bolts (that bolts the drop link to the arm) break. I just got a spare bolt from my tool box and put it in, since it didn't have to be a special bolt. The biggest PITA with TRG is that the hardware is SAE, which is stupid for a car with all metric bolts. I ended up having to carry a few SAE tools along with my usual metric ones.
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#27
Mr. Excitement
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You can also rebuild the stock bar mont by bending up some 1/8 X 1 flat stock drilling and welding nuts to the backside and then boxing it with 22 gauge sheet. Easy to do if you can weld and strong. This spreads the sway bar loads out and cheap to do too. SRP setup already in hand.
Last edited by kurt M; 07-26-2013 at 09:54 AM.
#28
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Re Kurt's post above:
Be advised that you are seeing the work of a master fabricator and ounce trimmer here. Mere mortals should look on with wonder, but should not try this at home.
Re maximum rear bar rates:
As chrisp said, SRP bars go up to 31mm, and the arms have a wide range of adjustment. The TRG & Tarret bars top out at 23mm.
I had the SRP 31mm on my 85 911, and set it around mid range for typical dry conditions. It was very easy to set for 'oversteer on demand' with a 22/31 tb setup. On a coil-over setup, it would probably be possible to tune it even stiffer. Full soft setting was fine for rain. Cory is right about the adjustment bolts being fiddly to get in and out. Curse enough and they'll go for you.
Be advised that you are seeing the work of a master fabricator and ounce trimmer here. Mere mortals should look on with wonder, but should not try this at home.
Re maximum rear bar rates:
As chrisp said, SRP bars go up to 31mm, and the arms have a wide range of adjustment. The TRG & Tarret bars top out at 23mm.
I had the SRP 31mm on my 85 911, and set it around mid range for typical dry conditions. It was very easy to set for 'oversteer on demand' with a 22/31 tb setup. On a coil-over setup, it would probably be possible to tune it even stiffer. Full soft setting was fine for rain. Cory is right about the adjustment bolts being fiddly to get in and out. Curse enough and they'll go for you.
#29
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I've MIG'd Wevo mounts on two cars so far for SRP rear sways and I can't imagine any way they could fail without tearing some serious unibody steel away. The only trick was to re-index the mount alignment to clear the 915 transverse mount..
#30
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That's what happened to my car (although it wasn't wevo mounts), it tore the frame, not the mount. Kurt's mount looks awesome and carries the load over a larger area. Very nice.