Z1 Front Upper Control Arm (race) followup
08-16-2016, 12:12 PM
#61
Sorry to hear what you guys are going through but it's awesome that this is being brought to light before something truly tragic were to happen.
That's good that you're nearby zero99, maybe they can come up with a fix that will allow you to run these safely at the height you're running.
This reminds me of the SPC camber arm hitting aftermarket sways debacle, so many "enthusiasts" are going to run sways w/ a drop, just like almost 100% of people buying those FCAs are going to lower their car, and many lower than 26.25".
G/L guys.
That's good that you're nearby zero99, maybe they can come up with a fix that will allow you to run these safely at the height you're running.
This reminds me of the SPC camber arm hitting aftermarket sways debacle, so many "enthusiasts" are going to run sways w/ a drop, just like almost 100% of people buying those FCAs are going to lower their car, and many lower than 26.25".
G/L guys.
08-24-2016, 02:08 PM
#63
At Z1 now. The AWD cars apparently do sit different when lowered then everyone else. Pretty crazy but apparently true. We went over a bunch of options and it looks like we are leaning at looking at letting them use my car to get an AWD version made. Options are moving the outer hemi mount angle to a complete new joint that can have a better range of motion, or maybe both. No real clear cut answer yet. They are taking measurements and all that right now.
Very polite. Very much wanting to fix this problem. I will give them that they been very much wanting to make sure I am not put out by this or anything and that not only the problem be fixed but also that there are no hard feelings. I told them I was willing to drive back and forth and let them test with my car. End of the day all I want is solid mounting points (I have the race version), to keep the corner balance or get her re-balanced if things need to be changed, and a safe FUCA; and they respect that.
Very polite. Very much wanting to fix this problem. I will give them that they been very much wanting to make sure I am not put out by this or anything and that not only the problem be fixed but also that there are no hard feelings. I told them I was willing to drive back and forth and let them test with my car. End of the day all I want is solid mounting points (I have the race version), to keep the corner balance or get her re-balanced if things need to be changed, and a safe FUCA; and they respect that.
08-25-2016, 07:30 AM
#65
Registered Member
At Z1 now. The AWD cars apparently do sit different when lowered then everyone else. Pretty crazy but apparently true. We went over a bunch of options and it looks like we are leaning at looking at letting them use my car to get an AWD version made. Options are moving the outer hemi mount angle to a complete new joint that can have a better range of motion, or maybe both. No real clear cut answer yet. They are taking measurements and all that right now.
Very polite. Very much wanting to fix this problem. I will give them that they been very much wanting to make sure I am not put out by this or anything and that not only the problem be fixed but also that there are no hard feelings. I told them I was willing to drive back and forth and let them test with my car. End of the day all I want is solid mounting points (I have the race version), to keep the corner balance or get her re-balanced if things need to be changed, and a safe FUCA; and they respect that.
Very polite. Very much wanting to fix this problem. I will give them that they been very much wanting to make sure I am not put out by this or anything and that not only the problem be fixed but also that there are no hard feelings. I told them I was willing to drive back and forth and let them test with my car. End of the day all I want is solid mounting points (I have the race version), to keep the corner balance or get her re-balanced if things need to be changed, and a safe FUCA; and they respect that.
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PNW_IPL (04-23-2020)
11-25-2016, 06:35 PM
#67
Got the new version of these in the other day for testing. Looks like they lengthened the arms by half an inch at the ends and re-positioned the main rod-end to knuckle angle.
The added length to the arms allowed the two arm to chassis rod-ends to be better seated in the CAs. The new angle of the main rod-end to knuckle allows the lower insert to almost perfectly drop into the knuckle and sit in a neutral position when the car is at rest.
For the record again, my car is AWD and has about a 2.5 inch drop in the front. The drop is varied from side to side as my car is corner balanced. On the old arms to have -1.4 degrees of camber up front the rod-ends were adjusted out slightly past the recommended limits and the main rod-end was at maximum angle for the insert when the car was at rest, which resulted in a bent insert (similar to picture on previous page) and the suspension not getting a good travel amount.
Drove 400 miles directly after the install to visit my parents for the holiday: night and day difference in suspension geometry up front now that the tire can actually pivot. The build quality and components are the same as before, which I feel are more then acceptable, and I predict will hold up just fine. The two changes to the engineering however will much better suit cars with, I'm going to guess, more than a 1.5 inch drop and/or is AWD.
The added length to the arms allowed the two arm to chassis rod-ends to be better seated in the CAs. The new angle of the main rod-end to knuckle allows the lower insert to almost perfectly drop into the knuckle and sit in a neutral position when the car is at rest.
For the record again, my car is AWD and has about a 2.5 inch drop in the front. The drop is varied from side to side as my car is corner balanced. On the old arms to have -1.4 degrees of camber up front the rod-ends were adjusted out slightly past the recommended limits and the main rod-end was at maximum angle for the insert when the car was at rest, which resulted in a bent insert (similar to picture on previous page) and the suspension not getting a good travel amount.
Drove 400 miles directly after the install to visit my parents for the holiday: night and day difference in suspension geometry up front now that the tire can actually pivot. The build quality and components are the same as before, which I feel are more then acceptable, and I predict will hold up just fine. The two changes to the engineering however will much better suit cars with, I'm going to guess, more than a 1.5 inch drop and/or is AWD.
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blnewt (11-27-2016)