Quote:
Originally Posted by Orb
I measured up the bar side by side at the dealer today it a direct bolt one so I went ahead and order it. Mr 5 said someone had done this already so it confirmed it will fit but I take photo once it is installed. From enginerring point of view this brace will stiffen the tower alot with very little material.
The wishbone on the 335i uses a hydraulic isolator…..this means slop city. The rear sub frame isolators are hydraulic as well. The wishbones on e92 M3 bolts on to 335i and the bushing are much stiffer. There is absolutely nothing different about the front suspension geometry between the two cars. Dinan has a bushing kit that has these parts and I was able to see the part number on the control arm today and they do match. The whole Dinan bushing kits are from a BMW e92 M3 and that is why I listed them. BTW, I have the wishbone on my car already and 4 other parts as well and doing the rear isolators next week.
The only other real bad part on the car is the shock rubber top mounts which deflect up to 20 mm under load. I did some testing in the lab and they are horror show (super soft so you loss negative camber close to the limit) and will absolutely induce under steer with anything other than the stock springs.
Orb
|
I am glad you are mentioning this and putting it out for the public to see Orb. I went to the dealer recently to look at the suspension components for the M3, and aside a very few minor differences, its all the same.. There are a few things that look different and have the "M" stamp on them, but they are no different than the 335's components. It seems like BMW just redid the part in a different material just because its an M.
The front end is basically the same as you mentioned. Someone also mentioned the front hub spindles are different, and they are, but its not an advantageous difference aside from a very minor difference in unsprung weight. Due to the spindle difference, the caliper is mounted a little lower than the 335's caliper, but its a negligible difference as far as COG and gain go.
The dealership dude was looking at me like, wtf is he doing. Haha.
Great info nonetheless bro and great job!
I wonder when Dtec will release a bushing set for the E9x's. They make some good custom stuff as far as bushings go.