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NSX EPS (Electric Power Steering) Refurb Service By - D1 Guy 1991-1996 & 1997-2005

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7 September 2006
NSX EPS (Electric Power Steering) Refurb Service By - D1 Guy 1991-1996 & 1997-2005

Hello everyone, I'm D1 Guy. A lot of you already know me by word of mouth, but I recently became an official vendor here on Prime, so this is my official introduction to you all as a vendor. I am grateful to be a part of this family and the camaraderie amongst Prime members is like none other I've experienced. Charles Brown and I (Matt Lindsey) developed a repair service for the NSX EPS units a few years ago, when I had my 98 NA2 (VIN 000001). We quickly noticed that there were several others in need of this service, so we decided to offer it to the public. Valhalla (JC) was the first one to send his rack in to be diagnosed/repaired and this unique refurbishment service spawned from there.

I'll try my best to explain what to look for and what you can expect from me. I'd like to start by saying that if you didn't buy your NSX new, then you probably don't know what its supposed to feel like. See, Honda designed these racks to have aluminum bushings with rubber between them. The technology wasn't there back then to have a non-compliance self lubricating bushing, so the only way they had to build these racks, was ultimately flawed from the beginning. These EPS units were designed to provide the same road feedback, handling, and feel as a manual rack at speeds above 18mph. The rubber inside the factory bushings dry rot and break down over time and not necessarily with the mileage of the car. Basically, every rack in existence needs to be refurbished with updated parts considering some of these cars are already 25 years old. My colleague (Charles) and I rebuild/refurb these racks in our spare time strictly for the NSX community. I've had 5 of these cars in the past and they are my favorite automobile. We started noticing that every NSX needed the same few things......window repair thingies, climate control rebuilds, Bose amp repairs, and the EPS units.

For the longest time, all the issues mentioned above were addressed and could easily be fixed by purchasing a specific aftermarket part.....except for the EPS racks themselves. Basically, what we do for the NSX community is a full refurbishment of the mechanics inside the rack itself. The bushings are replaced with an oil impregnated bronze that self lubricates. This doesn't wear down over time like the factory ones do. This is a permanent fix for these bushings. All of the bearings are checked ( I have to source them from Turkey and it wasn't easy getting them). If a bearing is bad, it gets replaced, but if it isn't, then we don't risk knocking them out. We've only seen bad bearings in a few units and all of those were either accident units, flood units, or fire damaged units. We remove the com, polish it and the brushes, we completely disassemble everything piece by piece, so everything can be checked thoroughly, then we relube everything before we reassemble it for testing. Once everything is back up to spec, we bench test it to make sure that all the tolerances are correct and we make sure there are no bumps/loose spots/rough spots/dead spots in the steering rack. Basically when you receive your rack back from me, your NSX will feel incredible, provide better road feedback, and handle better than you ever dreamt possible from a stock setup. The more suspension modifications you have, the better my system feels. I also give a full year warranty on my service. This warranty is for the mechanically portion of the rack only. If there is an electrical issue with the rack, it has to be addressed on a case by case basis and almost always, I will need your complete car here instead of just the rack. I've done over 120 of these units and have yet to have an unhappy client. I have clients all over the world that have been very happy with my work......Tokyo, Dubai, Australia, Canada, and of course the US, just to name a few. If I can help, please let me know.

My name is Matt Lindsey and I live in the northeast corner of Mississippi. Turn around time is about 10 days or less. Occasionally, I can get them done in 5 days, but sometimes it takes a little longer because this is something I do on the side. It is very tedious and very time consuming. We fabricate all of the parts (except for the bearings) and test everything individually, so quality control comes first. The standard rate is $1,500 & $1,600 respectively. If you have a shop, I do offer a shop rate for businesses that intend on sending out multiple racks for repair. I already work with a few shops now including Ben (redbird92) at Daisy Auto in Woodbine, MD, Barney Demonbreun (BARNMAN) in Nashville, TN, and John Zahn at Zahntech in Redmond, WA. If you decide to do this, you wont be disappointed, I assure you of that. Also, please note that we have purchased the domain name listed in our logo, but it is not fully operational yet, but it will be shortly. The best place to find out more info is here on Prime, or on our Facebook page. Thanks again and if I can help, please let me know. My cell is 662-416-0900 and my email is [email protected]. Feel free to call, text, or email me if you are interested in having your EPS rack addressed.

Check out a few of these reviews about our work that were graciously posted here on Prime:





The picture below is a great example of a perfectly clean and freshly refurbished EPS unit just before we shipped it back to its owner. Please note that this is what you would send in to us. Some choose to leave the inner tie rod ends attached (which is fine), but that adds about 10" to the shipping box, so shipping it without them saves us time and saves you money on shipping charges.

The torque sensor on 1991-1996 automatic NSXs and the 95-96 manual NSXs has a gear cog inside it that transmits data to the EPS brain. These were made of plastic from the factory. It's very common to find several broken teeth on these cogs, so we fabricate our own cogs that eliminates the chances of this happening again. As you can imagine, broken teeth results in incorrect data which results in erratic electric power steering function. All 91-96 units receive our cog hence the price difference in the 1991-1996 vs 1997-2005 units.

This NA1 belongs to one of our clients who received our EPS service along with some very sticky tires:

This is our advertisement that was in NSX Driver magazine just before attending NSXPO 2015:

Lastly, here is a pic of two more beautiful racks just before they were shipped back to their rightful owners:

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I want to have this done someday. You going to Orlando NSXPO 2016?
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