This cross member is not primarily for engine support. One of the rubber filled motor mounts does mount on it but the important function it provides is being overlooked as I will explain.
The arch shape is for vertical load. The potential for changing vertical load is not why I feel it is a bad idea making the cut suggested.
What the cut could compromise is
torsional load. Keeping the side members on the same plane and providing planned geometry for the suspension. This cut could weaken that. This bar completes the cradle that the front, side and rear cross member/suspension members create.
The setting of a weight in the center does not address this. It might as well been a taste test.
That is why I poked fun at it and when Shawn asked for suggestions, my replying to hold it over his head and let go, was exactly that. I was kidding him.It never occurred to me that he or someone else, might think I wished him harm. I did not.
Shawn, please don't drop a beam on your head.
I don't want you to be hurt. (I can't believe I actually have to reply to this)
I have seen NSX's come in my shop with front cross-member end bolt(s) that were missing, for whatever reason, and it did effect the rear suspension under corner load. One car had a high speed accident resulting in loss of control and crashing on the side the bolt was missing. Torsional load manifesting in a unplanned manner is my concern. I believe cutting this lip could change how torsion load is managed under extreme conditions such as high speed cornering.
This thread reminds me of another thread one that proposed removing the front bumper beam to reduce weight. I warned about that because that too provides strength, support and keeping the front side members on the same plane. At that time that thought brought down upon me the ire and criticism of many people.
I brought this topic of removing the front bumper reinforcement up with Mr. Urehara over dinner when some of us went to LeMan France. Now bear in mind, this fellow Mr. Urehara, tried his best to make the car as light as possible. In Orlando when someone asked what would he change about the NSX if he had to do it over he replied "I'd make it lighter".
When I asked him during dinner about removing the front reinforcement to lighten the car, something I knew was a bad idea, he looked at me very surprise and said that that was not something that should be done. That there were other safer ways to make the car lighter and to find something better to do than that. That smarted getting that curt answer, but it was a stupid question because I knew the answer, so I had it coming.
It is very likely that Mr. Urehara will attend another NSXPO someday in the future. When and if he does ask HIM what he thinks about cutting this beam to fit the wrong header. I hope I am there because I think I know what he is going to say.
"Get the right part".
Now in the real world, will cutting this as shown cause a serious problem? Probably not.
FYI, I-Car definitely says it's a no-no. They also maintain that a beam of this function, if damaged should not be repaired or straightened that it should be replaced.
Go ahead. Cut it. You'll probably never feel a thing. As someone else pointed out the car is most likely over engineered and it would not be a problem.
Not me though and absolutely not for a customer. No way.
Why I don't post with the frequency of the past is simple. They stopped making the car and there is very little to be said that not already been said.
I don't wait for Shawn. Sheeze.
Most of the time, when I see something that doesn't make sense, someone else has caught it, so I don't chime in. To suggest I'm out to get him, well, that is stupid. Why would I want to do that, I don't know. Believe what you want.
In the future, if Shawn is in the thread I will be very careful not to contradict anything he puts forth. I'll pass. I'll stay out. No skin of my nose.
I certainly won't kid with him again. I don't want to be responsible if he takes me seriously and hurts himself.:smile
I doubt he would)
Now before I sign off I have one last thing to say and that is to SoCalx: The vent in your OEM NSX-R Hood, the opening, left and right sides are not symmetrical in distance and angle to center. None of them are. Stop being angry at me about pointing it out. It really doesn't matter, the hood is GREAT, but this anomaly is a fact.:wink: