So i just completed what I consider my most NSX-R devoted mod, the undercarriage sound proofing delete.
I held off on this for a while in fear of being the most time consuming and messy along with worries of extra sound and ect.
and other attempts on prime scratched the oem catalyst that protects the aluminum form oxidation. I did not want to do that.
than I thought to my self well If I really could get a real NSX-R over here to the US it would not have the sound deadening anyway. So if the NSX-R doesn't have it than I don't need it either.
Then I played around with different options trial and error removing it without removing the OEM base coat so that it really would be just like an oem finsish like an NSX-R that never had the undercoating sprayed on it to being with.. and I did not want to scratch/remove the oem base coat and catalysist and the have to re-spray another protection layer /paint over it which also adds weight back on and is not as good as whichever honda applied Finish was applied to begin with.
So in the end I was able to get it done! for the first time on prime, here is the OEM base finish and catalizer unharmed. no refinish needed.
. finally found the right combination!
with a combination of a borrowed $2500 professional steam cleaner machine and commercial 4000psi pressure washer. and allot of patience and mess and some hand burns and luckily no burns on my face since the water shoots back at your face constantly because of the curves and crevices and high pressure.
Be very very careful attempting the and wear full body suit protection, gloves, and wrap towels (ziptied) around the washer gun wand that boils and will burn skin instantly..
estimated weight reduction 6-8lbs from wheel wells (as documented by other members) I think was able to remove almost every single nook and cranny of it even from all the welds..
plus rear frame rails and undercarriage minus 15-20lbs estimated, i measured area and compared to the known weight of fender weight reduction.
so about 20-28lbs total weight reduction (plus maybe 5-10 lbs off all the aluminum arms and engine parts with caked on dirt and grime over the years too)
i only noticed a minor difference in road noise but to be honest my exhaust is so loud, i cant hear anything anyway
and i don't drive it enough for noise to matter either.
and i have not noticed any noises from road and rocks, but that may be because i still have the oem fender liners which cover the majority of the tire area anyway..
As another interesting bonus, now I know for a fact that my car has never been in any major accidents ever, every single part i revealed of the frame and uni-body is all oem welds and no patches nor repairs.
also came home last night and found somone new moved into my building, there are a few lambos here already but this one looks wild. need to meet new motor head.