FireHead

This is a good point. There really isn't a good way to diagnose a problem in the TORS system. :thumbsup:

You should have atleast made something with it first before you took it back................you could have made yourself a pirate hooker peg leg or something. :biggrin:

Dammit Dave, you are really making me consider buying a set of Lectrons........................ :ohmy:

That's exactly what I was getting at. I am also somewhat interested in the real differences in performance from an engine that was puit together at home with off the shelf parts vs. one that was completely put together and tuned by some one like you. Can you lend any info to that question, Jim? :geek:

I haven't paid much attention to whose engines do what.............I suppose that is just a symptom of the way I interact with this sport as a hobby. The 4mm DM seems to be one of the best configurations for that cylinder. I have found it somewhat interesting that there is a big discrepancy between the 4mm DM power and the power of larger number of the same cylinder family. I suppose it just goes to show that an engine's performance is the sum of it's design and not just it's displacement. :geek:

Calvin's parts definite;y work well. One thing I like about Calvin is that he doesn't spend much time publicly comparing other products to his. It takes a good man to be able to field a product such as his and only let it stand on it's own merit. :thumbsup:

A word of caution, if you're not mechanically inclined: If the TORS system is working and you don't need to remove to make way for modifications, it's probably best to leave it until it stops working. :thumbsup:

I use Yamabond on alot of stuff. Hondabond is the same thing and if I recall correctly, made by the same company...................I wish I had been in the company that pulled that off. I actually used Yamabond as the spec.'d sealant or gasket adhesive for alot of my parts at TRD. 1104 is something that ventures into the alien goo category in lamens terms. If you have two well prepped sealing surfaces, that stuff can be a handful when trying to disassemble parts sealed with it. If it is correctly managed then it's not a big deal, but honestly, when using it, when was the last time your were in a correctly managed situation? :geek:

It references throttle position for the TORS system (the funcky servos on top of your carbs). If you are mechanically inclined, you can lose this system. Good new guy question.:thumbsup:

I would caution against using a name with engineering in the title unless you actually have an engineer on staff or access to one.........I don't believe CFM has one. :geek:

My neighbor has one...... :biggrin:

That will work too. You get a good thermostat that way........ :thumbsup:

Are you trying to say that Calvin doesn't push his product really hard? :ermm:

Like I said, alot of builder don't like Twister cylinders because they are ignotant of alot of the CNC work. Nate is one of those folks. I have talked to him in person about it several times. If he had a choice, he will go for the hand ported engine every time. It's just a difference of opinion and it's still the people involved that make a good engine.

I have had problems like that with alot of my engines (except for the Pingel thing)............ :biggrin:

Awesome! I was going to post something like that............... :biggrin:

The 4mm variant of the DM cylinders seems to be a really hot engine. :thumbsup:

Calvin is a good guy, but he pushes his product just as much as everyone else does on PS.........

My hack at your statment, was basically aimed at the fact that a properly configured 5-axis CNC mill can go anywhere your hand can go, except the machine is more accurate. So that everyone learns something here from me being an ass: Let's put this into a reality. Take a pencil in your hand. Now, move it around and try to count how many axis of movement you can orient your hand. It's really only 5 (some might argue for 6). If your were to then take a cylinder in your other hand and try to trace around your ports, watch how you have to move the cylinder and your pencil........................if this makes sense to you, then you are half way to being a CNC manufacturing engineer. As an aside, I have had guys work for me for over a year that couldn't get this excercise figures out.

So here's where I think the stigma comes from on PS. If you buy a relatively shelf stocked cylinder block made by Twister, you wind up with a generally good port configuration. To tune them for your specific application, you can fiddle around with some of the port areas (i.e. raise or lower ports). However, if you order a block straight from Louie and tell him what you want the cylinder for, are willing to wait, then you will get a block that is machined to a different spec. that is best suited for your application. An analogy might be that this is similair to buying a car out of dealer stock vs. order a car to your spec. from the car manufacturer. Due to all of this, alot of folks go for the instant gratification route and have another builder whittle away at an off-the-shelf part. This can all be doen with a CNC mill, but you have to have a good grasp of what you're doing to get this done, plus have the resources available to do this and the ability to make money doing it. Most builders don't have the knowledge or the access to the quipment necessary. Of course, if you're the OEM for the cylinder, you just load up a CAD model, change a few dimensions, reprocess the tool paths, and all of a sudden you have a different (custom) part. You have to remember that the Twister cylinders are magically made out of a large block of ally. A casting for this application is a tougher thing to deal with from an engineering standpoint, as a one-off custom requires new patterns and cores to be made (printed in a soft tooling situation). For your a cast cylinder to be viable, you need to design in some extra material to be fiddled with in finishing operations, which is where the extra porting comes back into the conversation. This is the beauty of the CNC side of the racing manufacturing world. On a personal note, for a finished product viewed from an engineering standpoint, the Twister blocks are a much more elegant solution to the problem. With that said, either the Twister of Cheetah cylinder blocks can perform equally, it's just a matter of the people involved in the project (as with most things in the racing world). :geek: :geek: :geek:

Actually, they think it's funny because the bike doesn't exist and never existed, even on paper (computer). :biggrin:

BS............... :thumbsup:

I would like to hear some other folks opinion on this as well. :thumbsup:

The guys as Yamaha R&D in Cerritos, CA think that article is funny as hell............ :biggrin:

That would probably work. THe heat lamps are about the safest way to go when you're building a makeshift oven. :geek: