One of the reasons for me to be reluctant was that, but since this H&R's are HUBCENTRIC, the wheels get perfectly tight ... I have driven only 2 times since then (sunday and today) and I have no vibrations ....
Are your 15MM the ones that come with BIGGER Studs? the ones you install removing the brake disk etc? the 25mm's comes with the studs fixed, so there's no need to remove any parts etc .. maybe that can be a reason ...
I did EXTENSIVE reading about the pros and cons on "spacers" and nothing was 100% for me until I found this:
http://www.nsxprime.com/forums/showthread.php?t=1782
Oscar
I actually read that too before I did mine on the prelude. I didn't really want the spacers, the thing is that I was putting S2000 wheels on my Prelude, and to do that I had to do a 5 lug conversion.
But then what happened is that the front axle spline sticks out farther from the 5th gen prelude front hub/spindle than the original 4th gen one did. The fix is to use a bunch of washers between the axle nut and the face of the hub. I guess the offset of the s2000 wheels were too high beacuse the axle spline would actually stick through the center cap of the wheel.
So the 15 mm spacers pushed the wheels out enough to fix that problem (Plus it looks a lottt better) --
The 15mm required replacing all the wheel studs, with studs that were exactly 15mm longer than oem.
Perhaps the old skool method of just knocking the old ones out with a 4lb hammer screwed something up beyond repair? The new studs went in just fine. Old skool method of just putting a lug nut over the front and tightening to pull the stud through the hub was used.
For me, The suspension just has so many variables, wheels, tires, 5 lug conversion (maybe something not done right), spacers, potentially worn wheel bearings, etc...
You're the first person I've ever spoken to with H&R spacers (they're mostly on a lotta euro cars) so I figured I'd ask to see your opinion on them.
I'll be replacing all my bushings with energy suspension bushings soon, and when I do I've gotta buy a 20T press (cheaper still than paying someone to do it all for me, plus I learn more doing it on my own) --- and at the same time I'm planning on replacing all of why wheel bearings. Maybe (hopefully) I'll notice some improvement then.
Another possibility was that someone told me it could just be the tires, the Prelude has cheap ebay Nexen's, which I've been told are prone to defects from the factory that could cause that vibration. But again you'od think that the wheel balancing machines would pick that up. I've been considering just replacing the tires, but thats a $400-600 'lets see if it fixes it' option. I need to figure out a way to pin point it down first.
Either way sorry to thread jack bro, thanks for the offer for a ride, desptie I've dreamed of owning an NSX my entire life, I've never actually been for a ride in one. Sat in em', drooled over em', takin pics in a parking lot next to random ones lol, even came close to picking one or two up, but life always got in the way, and I have never even been for a ride in one. I'd love for my first experience to be in yours, the thing is just simply too hott. You've got good taste in cars! (I remember reading that you had a Prelude before your S2000 too right?) I may have to take you up on the offer sometime soon! thanks again!