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Scratches OK but must be straight (no dents or cracks). A friend of mine likes my OEM 17/17 wheels so much he wants a set for himself. He's the original owner of his NSX and would like a change from the 15/16 five-spokes.

Is there any trick to updating a picture in the Owner’s Photo Gallery? I’d like to update a table with the specs of an NSX’s intake system but somehow the new table isn’t being shown. First I clicked on Photo Options / Edit Photo / Select new image and uploaded my updated photo. However, the...

Just as a heads up, Honda now sell later-style lost motion assemblies (LMAs) for earlier NSX engines. Up until 1999, NSXs had oil-filled LMAs that start to stick over time, causing the engine to make tappety noises even if the valves are adjusted properly. For the model year 2000, Honda...

I needed a new windshield for my USDM 1991 NSX due to a rock chip and my local Honda dealer here in Europe could not get the correct part number. I don’t know what the difference is between a USDM and an EDM windshield – color of the tinting, cutout for the VIN number, just the manufacturer –...

In order to see where bottlenecks may occur in an NSX’s intake system if you modify the engine to make more horsepower, I put together a list of the cross sections at various points. In case anyone else finds it useful, here’s the current status of the list. If anyone has real measurements of...

The German car magazine Sport Auto just stated that they will not put the cars they test on a dyno. They measure cars' lap times on the Nürburgring and their actual lift and drag in a wind tunnel. Measuring horsepower would be child's play by comparison and their readers would like to see the...

Does anyone know whether the stock engine management computer adjusts the fuel injector pulse width for both cylinder banks separately based on input from the oxygen sensors? It would make sense for the EMS to do that, but I just want to make sure it doesn’t adjust both banks the same based on...

…with a naturally-aspirated 3.0 liter 5-speed measured by GPS, filmed in high definition. <object width="560" height="340"><param name="movie" value="http://www.youtube.com/v/W5EmrML3p1U&hl=en&fs=1&"></param><param name="allowFullScreen" value="true"></param><param name="allowscriptaccess"...

Does anyone know whether certain cylinders typically run rich or lean at wide open throttle? If the air distribution into each intake runner isn't perfectly equal, the cylinders closest to the throttle may tend to run rich and those furthest away from the throttle may tend to run lean. Or the...

Does anyone know whether the stock engine management system in an NSX is capable of sending a different fuel injector pulse width to each cylinder or is it only able to vary the pulse width per bank? I heard that some engine management systems can tell which cylinder is running rich or lean...

After seeing the rear undertrays / diffusers of John@Microsoft, troca, lowellhigh79, and the Audi R8, I decided to try my hand at building a rear undertray myself. My main goal was to miminize drag subject to the following constraints: Does not require any holes to be drilled into the car...

Since I had some polycarbonate sheeting left over after making a front undertray, I decided to make an undertray for the gas tank as well. I wanted the gas tank undertray to: 1) mount to existing mounting points so that no holes would have to be drilled into the bottom of my NSX 2) have its...

This morning just after dawn I managed to get my NSX up to 304 km/h (189 mph), measured by two separate GPS devices. The autobahn I was on runs parallel to the Isar river, so it's almost completely flat. The wind socks on the side of the road were just dangling there, not showing any wind. The...

After seeing that more and more cars are being built with undertrays - including the 2002 NSX-R - I decided my NSX needed one, too. In this thread I read that NSX-SA put one on his NSX without using a vented hood and that his car didn't overheat, so I figured I'd keep my stock hood and see how...

Oh man, this sucks. Last August, I contacted ERZ cars and ordered and paid for four brake calipers from a 2002 NSX. When they hadn't arrived by October, I asked for the tracking number. In November, a package with the tracking number I was given arrived, but it only contained the front...

I recently had a set of Bilstein shock absorbers revalved to OEM 1991 specifications. Since neither Honda Europe nor Acura USA could (or perhaps would) tell me what those specifications were, I bought some new OEM dampers and had them measured. Both Honda and Acura said the correct part numbers...

I'm looking for a steering column with no play to replace mine, which has some play. I need parts 1 and 6 from the parts catalog (http://www.nsxprime.com/FAQ/Reference/1991-1992_parts_catalog/2-c4.jpg) and would like the donor car to have low milage and be relatively new. Will pay for shipping...