Do Fender braces work?
Jul 10, 2009, 08:55 PM
#16
It took me 5hrs to completely finish from beginning to end. Some parts were tricky, the rest was straightforward. I have a how-to already written up. I just haven't had the time to draw some arrows in the photos I took yet. If you need the instructions now, PM me your email address and I can send you a doc.
Jul 10, 2009, 10:17 PM
#17
Attachment 311254
Last edited by Juan Martinez; Feb 11, 2018 at 08:13 AM.
Jul 27, 2009, 02:59 AM
#18
I have been doing write-ups on my Evolution IX project car. Here is the one on how the fender braces went in:
http://jimsgarage.wordpress.com/2009...new-stability/
Jim
http://jimsgarage.wordpress.com/2009...new-stability/
Jim
Sep 4, 2009, 12:09 PM
#22
What do you mean other than stiffening the chassis? That is what handling is all about.
Stiffening the chassis provides predictability and repeatability on the track.
Under fender braces improve the steering response, allow for more precise tuning of the alignment as well.
Maybe it is just because I have the time on road racing tracks that I am surprised at your question - I don't mean to be rude.
Stiffening the chassis provides predictability and repeatability on the track.
Under fender braces improve the steering response, allow for more precise tuning of the alignment as well.
Maybe it is just because I have the time on road racing tracks that I am surprised at your question - I don't mean to be rude.
Sep 19, 2009, 08:17 PM
#23
just curious, but if you get hit (or hit something) on the front corner, might impact forces transmitted to the door hinges torque them enough to possibly prevent one from being able to open the door?
Sep 20, 2009, 04:59 AM
#24
Actually I have experienced just such a hit on the track (VIR) back in March 2009. My Evo spun in turn 17 and struck the tire wall with the driver's front ripping off the bumper cover and further rotating the whole driver's side into tire wall. The force was enough to flip the tirewall on to its side (cost me $100 to have them put it back in place).
All doors and windows still worked. The fender brace actually kept the front crush zone from crushing and the car was still driveable with the exception that the ACD hydraulics were also ripped off the front and empty of fluid.
Yes - an impact could be hard enough and at the right angle that the forces would jam the door, but that could also happen without the braces in place.
Frankly the Evo frame is very impressive. It took quite a hit and still held up. With or without the under fender braces.
http://jimsgarage.wordpress.com/2009/04/05/whoops/
All doors and windows still worked. The fender brace actually kept the front crush zone from crushing and the car was still driveable with the exception that the ACD hydraulics were also ripped off the front and empty of fluid.
Yes - an impact could be hard enough and at the right angle that the forces would jam the door, but that could also happen without the braces in place.
Frankly the Evo frame is very impressive. It took quite a hit and still held up. With or without the under fender braces.
http://jimsgarage.wordpress.com/2009/04/05/whoops/
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Nix_77 (Oct 21, 2021)
Sep 22, 2009, 12:33 AM
#25
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There was a write up in one of the mags, Modified, Import tuner, can't remember. I might still have the article, but it had nothing but good things to say about these braces.
Apr 28, 2011, 01:34 PM
#28
In terms of user-felt improvement, it's hard to notice anything improved. However, I can theorize that if the car is stiffer, your alignment specs won't get as skewed when you're on the tracks taking turns.
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Blue Evo 8 (Jan 30, 2018)
Apr 28, 2011, 02:20 PM
#29
The Nagisa brace is well designed. Robert from Robispec told me that this mod stiffens and improves the car as much as the front roll center kit benefits suspension geometry. I had absolutely no problems with tire rub. It was far from the tire. The hole was pretty easy to drill with titanium coated drill bits. If you are buying this mod, line everything up and drill the hole AFTER you have lowered the car back onto the ground and jumped on the door step area a few times to get the car settled. My buddy didn't do this (they don't tell you in the instructions)...he drilled/bolted everything with the car jacked up, so when he set it down, the door wasn't closing correctly. That alone proves that the front end of the car does twist and flex.
In terms of user-felt improvement, it's hard to notice anything improved. However, I can theorize that if the car is stiffer, your alignment specs won't get as skewed when you're on the tracks taking turns.
In terms of user-felt improvement, it's hard to notice anything improved. However, I can theorize that if the car is stiffer, your alignment specs won't get as skewed when you're on the tracks taking turns.
it didnt fit right from the springs needing to settle right - the actual chassis needed to settle?
