Tag Archives: Eastern Fabrications

Trip up the Coast


I recently took a trip from LA north up the coast, mostly on US1 aka the PCH. I rode to San Francisco, then to Sacramento, then over to the coast and back down again. The trusty “Interceptor” was a champ, not one problem…

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Complications in Los Angeles


Sorry for the lack of posts once again, there has been lots to do out here in the last few months! The shop space I rented turned out to be a bit of a disaster. The real estate folk I dealt with told me there would be some light construction happening across the street from the space, where the city was building a new park. What they didn’t mention was that the park was only a small portion of a greater urban landscape change that effects several blocks around my new area. Raising the road grade several feet, demolishing and rebuilding a giant bridge over the nearby LA river, and digging lots of new trenches for assorted conduits, pipes, etc. The construction even goes through my yard, starting in a few months! The fence which isolates my little haven from the walking dead outside is my only defense (and was a major reason I chose this place), and soon that will be down. Here you can see the construction site that used to be a regular street in the background…

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Since about a week after I arrived, this whole area from the hill in the background to about 10 feet behind the dodge has been a 24/7 beep, beep, beep, beep from the construction equipment, as well as a constant haze of concrete dust. Jackhammers, dump trucks, backhoes, welders, and the biggest steamshovel I have ever seen have all descended on my new “home”. Add to the fact that I cannot use my central air system because it is filled with the remnants of a rat colony that occupied the space at some point. I didn’t realize this until I repaired the AC unit and clicked it on, then the smell hit me like a ton of bricks.

So needless to say I got fucked in the beard, big time.

So as fun as it was to move thousands of pounds of motorcycles and equipment, it looks like I will be doing it again soon. With the help of my friend John, I am on the hunt once again for a new shop space in the Los Angeles area. Anything from around 2500-4000 square feet, with all the typical bike shop requirements like a garage door, big flat floor, and lack of uptight neighbors. And of course I would prefer it not to be in the bowels of East LA. I am not putting a cap on the price this time around; I want to really see what is out there. Just a warning to any future realtors/landlords, I am at my whits end here and if I get fucked again, I have a plasma cutter and I’m not afraid to use it. And by the way, when this space comes up for rent again in a few months, I don’t recommend renting it unless you plan on opening a toxic waste dump, or a pet store that specializes in rodents. 2000 North Figueroa st, los angles ca 90065. If there are any lawyers who want an easy target, feel free to contact me!

On a better note, all the riding I have been doing has had my brain working overtime. I have never ridden this much, this consistently. It has given me the opportunity to really understand the shortcomings of whatever bike I am on, in this case, my dyna based custom “Interceptor”. I am splitting hairs here really, because the Interceptor is the most reliable motorcycle I have even owned, and has faithfully carried me all over this huge country without so much as a hiccup. Of course, my engineering mind is always at work and there are several things I think I can improve upon when the time comes.

For those not familiar with the Harley “dyna” series of motorcycles, I’ll give a basic synopsis (if anyone has any insight on them, or disagrees with me, please comment). A while back Harley (with Eric Buells help) realized that the vibrations their engines produce is a major limiting factor to both the comfort and performance potential of the bikes, and the “rubbermount” Harleys were born, starting with the shovelhead powered FXR in the 80’s. Since then there wave been quite a few variations on the rubber mounted design, such as the FXR’s, the rubbermount sportsters, the baggers, the Buells, and the dynas. They all isolate the rider from the vibrations to some extent, but are all quite different in how they use the actual rubber mounts.

I could ramble on about these bikes forever, but here is an observation and a question: On every design, the rear wheel swingarm is either rubbermounted by itself or solid mounted to the rubber mounted transmission. They are never attached to the main frame in a rigid fashion. Obviously it is the motor that is producing the vibration, and so it needs to be isolated. Why “rubberize” the rear wheel as well? The negative effects of this are what companies like “tru-track” are trying to control with various heim joints and linkages. Dynas are some of the worst offenders in my opinion when it comes to the “rubber swingarm” rear-steer problem, because their drivetrains are mounted on two rubber blocks in line with each other, rather than the more triangular mounting layout of the fxr’s and baggers. When I go around a corner, the rear-steer is horrible. To make matters worse, it is not simple wagging left to right, but also twisting and moving up and down. This creates very vague and unpredictable handling.

Here is the big question: why does the swingarm need to be rubber mounted? The answers I have gotten so far are 1; they need it because the rear end would vibrate otherwise (huh?) and  2; the rear wheel and sprocket shaft can’t have rubber between them (this is referring to the dyna design, but of course all the other rubber mount designs have that, so- myth busted)

Any educated input is welcome! comment please

 

 

 


Efab Update 2014


I thought it may be pertinent to give everyone an update on what I am doing with Efab currently. As many of you know, I am moving to California. I am not getting rid of the shop space in CT, however, until I have tried CA and (hopefully) liked it. The shop and apartment in CT may become available for rent, dependent on my experience in CA. My friend Alfredo Izzo, who has assisted me on several projects in the last year, is moving with me.

The reason I am not out there now is because of a mix-up with a shop space we found several months ago after an exhaustive search. We had reviewed the lease, visited the spot, and were assured by the realtor and owner that everything was a go. We returned to CT and packed up the shop, and then got a call from the realtor saying the current tenants were, in fact, not leaving for another year. If anyone in the LA area gets Mr. Tim Wetzel as a real estate agent, run the other way screaming! I cant say enough bad things about our experience with him.

We are flying out to LA this week to re-start our search for a new shop space. A huge thank you to Brooke Worrel, John Sender, and Allison Casson for helping us facilitate this move.

Project update

Despite all the changes to Efab, the next project is pushing ahead full steam! As a little recap, the project is based around a 1972 Dodge Charger, code-named the Vulture mk 1 and Vulture mk 2. The mk1 is simply the car, with a few drivability and durability upgrades in order to get it the 3000 miles from CT to CA under its own power. This drive will also serve to help me understand the shortcomings of the car, beyond the obvious (inefficiency).

The Mk 2 will be the kickoff project for the new shop in CA. The parameters for the new car: ultimate all around vehicle. A broad category for sure, but one that will challenge me and actually serve a useful purpose when finished. What does this entail? So far I have come up with these guidlines:

1. Durability. It must not be fragile

2. Efficient. Must get at least 22-25 miles per gallon

3. Stable and comfortable at high speeds. Must be comfortable cruising at 80-90 mph for long distances.

4. Cargo Capacity. It is a utility vehicle to serve Efab, so it must be able to carry an acceptable amount of cargo/load such as metal, motorcycle engines, building supplies, etc.

5. Aesthetically pleasing. Duh

The Mk 1 is finished, and will make the drive out as soon as we find a new shop. This will be the one, and only long trip the car should take, assuming something unforeseen doesn’t happen. To prepare for the Mk2, I have been educating myself on all types of wheeled vehicles. Keep in mind I have very limited experience building cars. In my life so far, I have owned a few pickup trucks, a 1970 Chevelle, a (new) Mini Cooper, and a 1929 ford hotrod.

The Chevelle and the 29 Ford were both assembled and highly modified by me, but not really built. I did not try to improve the cars, apart for the motors and aesthetics. Both of them handled poorly by modern standards (obviously), and despite both having plenty of power, neither was much use for anything other than the occasional joyride. They both had poor fuel economy (which limited range), excessive vibration and noise, and limited utility.

Two things  seem very obvious to me right off the bat. The engine and the chassis. Given the technology available, the only efficient engine with both the power and fuel economy to move a 3800 pound car is a turbo-diesel. Gasoline engines, when large enough to properly motivate a car this size, are simply too inefficient.

The second problem is handling. This is a Pandoras Box situation. “Handling” is a very broad term, one that is made up of many systems all working in harmony. The steering system, braking system, suspension design, chassis design, wheel and tire choices, and driver to car ergonomics all effect it.  Solving one problem presents another. One suspension design excels at one job, but is not ideal for another. It is the biggest engineering challenge I have ever taken on, but hopefully one that will be rewarding.

This transitional phase has left me with a lot of free time, which I have filled with reading and research. One major problem I have encountered, from an educational standpoint, is that there are very limited resources available to answer basic engineering questions. For example, you can get books on “how to build a nascar”, or “how to build an off road truck”, or “how to build a rat rod”, but not many on how to build a regular car. What this means is that I have to educate myself on every type of wheeled vehicle known to man, then pick and choose which technologies I can apply to my car. Oh well, in the words of Guy Martin, “If it were easy, every man and his dog would be at it.”

Stay tuned….

 


Brooklyn Invitational 2013


I finished the Iron Triangle, minus a little tuning, for the this show. Satya, Alex, and Alfredo all came through for me, helping me do the last few days of fabrication.

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Alfredo rode the Speed Fetus into the city from branfordbi8

 

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Iron Triangle Race to the Finsh


Making a taillight on the ol’ end mill.

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Oil Tank, battery box, regulater/rectifier mount installed….

oil tank IT

Vent and return lines plumbed…

oil tank 2 IT

Top motor mount, check….top motor mount IT

I like this area…lots going onoil area IT

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Notice 3 wires coming out of that alternator! 48 amp 3 phase charging system from Cycle Electric feeding an Anti Gravity lithium ion battery. Less drag, lighter weight, faster recharge times.


Iron Triangle Fender


The fender for my new bike (for the brooklyn invitational, then artistry in iron), has an entirely stainless steel rear fender. Recently I made the wiring conduit that leads the taillight wires from the frame backbone to the taillight location at the rear of the fender. To curve the thin walled tubing, I used a low-tech method that works well for tubing too thin to be formed in my roller- torch bending. Common thought is that using a torch to heat and bend thin tubing would result in the tube collapsing and “pinching”, but thats not the case if done right. By heating a large area of the tube to an even cherry red, and applying soft pressure, a perfect curve can be achieved!

here she is finished and installed:

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Iron Triangle Update


Bike is progressing! not long now…

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Making stainless steel exhaust clamps. I made a simple fixture to form the flat stock to the correct diameter.

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After a lot of metal finishing….

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My only gauge will be cylinder head temp, which is the hottest part of the engine. Gauge itself is from an airplane.

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This box got recessed into the top of the gas tank, and the other cutout is for my two mil-spec toggle switches. This is all cut out with basic hand tools and my sander.

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