Tag: acura

  • Who, what is Omniman?

    Who, what is Omniman?

    The brief bio of the man who created the LS VTEC. See how Steve’s presence has impacted Honda Motorsports.

    Who, what is Omniman? Here is some back ground info to give the Honda racing community a better understanding of one of its greatest pioneers. I have had the pleasure of knowing Steve “Omniman” for the last few years and he has always been there to lend a helping hand. He is willing to share and teach whatever he can when he can spare a free moment. I bug him here and there for his opinion because I know he won’t steer me wrong and he never complains even with his busy schedule. Steve is a natural pioneer and teacher as you will soon learn.

    Paris R. Jackson

    Moving from California to Colorado seemed like the best plan in the world; I mean he was going to work at a Ferrari dealership and what gasoline blooded person wouldn’t want to go work on the pinnacle of automotive achievement?? Well, some times the best laid plans just don’t work out. After working at the Ferrari dealership in Colorado , and not being able to pay his rent, due to the very slow winters, Steve was working part time to help pay bills at the shop in Denver where he originated the LS/VTEC called Speed Image. After working there and learning many of the tricks he now employs daily, he was lured back to California to work on some other exotic cars in the form of Lamborghini`s and Ferrari`s. But again, the Honda scene lured him back, but not before bestowing upon him, some great knowledge to be tried in the Honda world.

    Steve had wondered how to build a “stroker” motor (adding stroke to the crank throw to gain more displacement) without ruining the rod ratio. The only problem was you could only move the wrist pin up so much before you ran out of room. Not really an option back in the late 90`s, if you wanted a good rod ratio . In 198 4 Lamborghini wanted to come out with a new bigger motor, using stroke to increase displacement they faced a similar problem, but not having the money to have a new block casting made, Lamborghini designers decided to add stroke, by adding what`s commonly referred to as a deck plate to their motors. Steve had seen this when working on the 85 Countach and decided that he wanted to try it out for himself on a Honda motor. However, no one had ever tried it, so once again our famed engine guru is treading on thin ice. He had Advance Coordinate technologies in Denver make up a CNC program for $375 and took that program to Denver Mill and Lathe to have some plates made. With these in hand, he called Crower to get some rods. The guy on the other end of the phone (Brian Crower) must have thought Steve was out to lunch when he asked for a rod that long for a Honda motor. AS his reply was something to the effect of %u201CYou want a rod how long for what motor? Son, you do realize that it`s going to stick out the top of the block right??%u201D Never the less, Steve persevered and built his stroker motor, which was used in the Skunk2 drag car from 1999-2002 and made some ridiculous power with them, too bad the NHRA later banned the deck plate idea.

    After working for Ferrari for nearly 4 years Steve ended up at Speed Image in Denver Colorado , to find his true love, Honda engines. After 3 years there and wanting to get back to California Steve took a job at Milano Imports (the largest and oldest Lamborghini tuner/dealer in the world). While there he again realized his passion for Hondas and was offered a job at group-a-auto sports/skunkworks. Later to be renamed Skunk2 after Lockheed got a little tense over the use of their name. In the 4 years that he worked for Skunk2 Steve helped the Drag racing team to 2 National Championships in 1999 ( when they became the first all motor car to hit 10`s and break 120mph) and 2000 and went completely undefeated in 1999 as well as the longest winning streak ever in all motor history with 9 straight wins. They also were runners up in the national points chase in 2002 in the NHRA series . Also while Steve was there, Skunk2 sponsored a few road race cars compet ing in SCCA’s speed world challenge, and were quickly realized as a force to be reckoned with, such as Roger Fo0’s rookie of the year achievement in 2001 . Steve helped develop most of the products that we have all come to know from Skunk 2 in the 4 years that he was there, but in the end, it was time for Steve to move on to bigger and better things. As Steve found out that working for someone can only get you so far, before you have to take matters into your own hands.

    In 2004 Steve decided to start Omnipower ( http://www.omnipowerusa.com ) which will engineer, and design new products specifically geared towards making cars go faster and handle better. Omnipower is truly dedicated to serving the enthusiast so Cost will ALWAYS be considered , to give the average guy the chance to buy well designed and functioning parts . After watching our industry price parts go higher tha n they should , Steve has decided to go against the mold and price parts fairly. With an ever expanding line up of products, which at the time of printing included: Valve springs, valves, Front and rear Camber kits, full coilover shocks and a new exhaust system aimed at high output all motor cars and turbo cars . There are many other products that are on the drawing board, and will soon be released. So be sure to check http://omnipowerusa.com/ often for new product information from one of the brightest minds our industry has to offer. I have to say a big thank you to Steve for letting me tell his story.

    Clayton Harmer

     

    Read more about Steve Omniman

    First LS VTEC

  • The First LS VTEC

    The First LS VTEC

    Many people have asked me who came up with the crazy idea of the LS VTEC, I knew was that it was Steve AKA Omniman. I decided to bug Steve to get the story straight from the horses mouth. So Steve sent me a copy of the story he was going to submit to a magazine. It looks like we got the jump on them who ever they are hehe. So here it is folks.. Paris

    In my never ending quest for knowledge, I sometimes find myself searching around the internet. Looking to dispel myths and find truth about the “wonder parts” we all hear so much about. Somewhere along the line I found the story of how the first LS/VTEC came to be. For those who don’t know the LS/VTEC is a non VTEC 1.8 liter block found in most Acura Integra’s, and a VTEC head from a B16 (SiR), GS-R or Integra Type R put on top. Back in the late 90’s when North America first saw VTEC in a Dual Over Head Cam (DOHC) variation; everyone thought this swap couldn’t be done. However, necessity being also the mother of invention, allowed one person to try the impossible. I couldn’t possibly put it any better than the man who did the swap himself could. So I’ll let his words speak for themselves. Without further a due, here is the story of the first LS/VTEC from the originator Steve ‘Omniman’ Rothenbuehler:

    How the LS/VTEC came about…….
    The first LS/VTEC was built in Denver, Colorado at Speed Image, I worked there from 96-98.
    It all started one night in the summer of 97 when we were driving home from work. I was in my 92 GSR and Hoang (the owner of speed image) was driving his cousins 92 CX hatch with a GS-R motor. While we were driving home the CX died on the freeway. We towed it back to the shop, pulled the head off and found that one of the stainless steel valves had broke, taking out the entire motor. After some investigating we finally found out that one of the other cousins had over revved the motor and bent the valves but didn’t want to get in trouble so he didn’t tell anyone. I felt really sorry for Tin the owner of the car. He spent a lot of money on it and now this had to happen. Tin literally spent every penny he had getting his motor in the car and running (everyone knows how that goes).

    Hoang and I looked everywhere but could not find another GS-R motor, at least one that we could afford. The only thing we had at the shop was a 90k mile LS block that someone had sold us for a $100 and a GSR head. I started comparing things, like heads, blocks, head gaskets, oil pumps, etc it looked close enough for the most part and I decided to see if we could put the 2 together.

    The first problem was the dowel pins had to be relocated to the other side of the head, no big deal. I went and bought a 9/16 drill (couldn’t find a 14mm) so 14.2 would have to do. I mocked up the motor with one valve in each side of the head kaddy corner so I could look through the exhaust port and see the intake valve and visa versa. With GS-R cams there seemed to be just enough clearance when VTEC was locked on. The cam timing even lined up perfect to our surprise. After that I installed the head (all stock) and put the motor in the car. When we finally got it running it felt great but there was no VTEC. So, back to the drawing board we went. I took the blown up motor and did some more comparing and noticed the oil hole where the VTEC got its oil pressure from wasn’t in the LS block. So I pulled the head off and figured if I added oil pressure to the passage it would work. Of course I had to plug up the hole in the bottom of the head so it wouldn’t leak.

    With the head back on we took it out for a test drive and it worked. Not only did it work but, it felt faster than any N/A motor we had felt. I took it to Dyno Pro (the local dyno tuning place owned by Bear Lynch) and it put down 154 whp and 125 ft/lbs of torque.
    About a month went by and we saved up and bought some type-r piston from the local Honda dealer. I wanted to see what would happen if I put a point of compression in it. When I went to install them the rods were too wide and would not fit in the pistons. I took the rods to a local machine shop and paid 50 bucks for them to shave 1mm off each side of the small end of the rods. They looked at me like I was crazy, but they did it anyways, after telling me they would not be responsible if it broke.

    It was a Friday when I got the rods back so I worked on the car all night while all my friends were out clubbing. I finally got it started at about 12:30 am. After cleaning up I drove it home, and man was it faster. The funny thing is that I didn’t not have enough money to buy new rings so I put in used rings from some left over rebuilds I had done. I really just wanted to get this guys car back and running, since it was his only car.

    The next day, everyone took turns driving it that weekend and we all wondered how much power the pistons made. The following Monday I took the car back to Dyno Pro and re-base lined it. Wow! It made 165whp and 132 ft/lbs of torque. The car felt really good even considering we were in Denver (5280 feet above sea level). The pistons picked up 11 whp, or should I say compression.
    A few weeks later I drove it to Dynamic Autosports for an Integra Type-r intake cam and a throttle body. Also it was a good test to see how reliable it was, since it was an 1100 mile trip each way.

    I made it no problem; the motor didn’t miss a beat, thank god (I was by myself with no cell phone). We installed the type-r cam and throttle body and put it on their dyno. We managed to hit 180whp with a full exhaust, a new NA record for their dyno. However; the next day some guy came in with a full race LS motor on carburetors and made 182. At least I had the record for a day.

    After that, I drove the car back to Denver and there it lives. It has changed owners 3 times. The car it was in even won a burn out contest, its first bracket race, and was in a magazine (turbo I believe). It was still running up until the summer of 2003 when the 3rd owner accidentally ran it out of oil and pitched a rod through the block.

    Clayton Harmer

    If you would like to learn more about Steve “Omniman” Click here.

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