No I sent that to a mod because I want the thread name changed, so maybe put The_Cosworth (as I said in the post above yours how I got my nickname, it was the cosworth cars) was a better idea. My main concern, and why I was getting pissed, was because I didn’t want a company that hasn't said anything or even were informed about this topic being involved. It was my fault that I put there name in here, it was my stupidity.

I have always agreed with you that there are worse things than a pulley. I want a supercharger and once that comes in, I am assuming all risks that happen to my engine and will get all the aftermarket parts for it. But until I decide to leap over the void warranty ledge I am staying well clear of it just to be safe. Maybe we should have made that clearer, we just don’t want to get into other mods and get off topic in a thread about the pulleys.

If you feel like we are bashing you or your product, I am truly sorry. I like your stuff (I mean I own some) and think you guys put a lot more thought and effort into things than 95% of your competitors. That still doesn’t mean that all of these parts are not a sacrifice somehow and that was all I was trying to demonstrate. It would be like us saying that if you put a turbo on your car be aware of blowing the rings and head gasket because our engine MAY not have been made for it, and you guys taking it personally about YOUR turbo kit. It is just the parts and ideas behind it in general.

Man this got out of hand quickly.

Ok to summarize and maybe the thread should be closed after this.


SUMMARY

It is the opinion of some people that removing the stock crank pulley and replacing it with ANY underdrive kit or lightweight kit will cause damage to your crank, belts, accessories, or cam. NONE OF THIS HAS BEEN PROVEN although the idea has theoretical value and should be taken with a grain of salt.

Many people are running these parts WITH NO ADVERSE EFFECTS and have seen an increase in performance.

We are not docking one company or part over ANY OTHER this was meant to be a generic review of the ideas behind a crank pulley.

If you have a part such as this on, do not worry about your engine. Please read the past pages for more information regarding positive and negative opinion regarding pulleys.

This is an article from Mach V performance and was quoted in Error of coming from a different source. All misquotes should be disregarded

 

Thank you.

I will say, I don't think anyone is coming after RRM in this thread. Just pulleys in general. Since you're the only company to make one (or anything for the CY4A, really), you are the obvious discussion point. But no one is bashing RRM. It's just a discussion about pulleys and their long-term effects on the engine.

 

Did some editing. Hopefully it can just stay a theoretical discussion and no more arguing.

 

Again I am not arguing just stating some more educational facts.....Open Wheel Midgets are a different story because they do not have a flywheel and transmission. The engine is connected directly to the rear wheels via a in/out box. The dynamics of this engine are completely different and should not be confused with the standard power train dynamics found in normal cars. And also....sucking in water won't melt the pistons, it will cause hydro lock. This will cause the connecting rods to break because water is an incompressible fluid.

 

There are far worse things, but those are usually something that is done unintentionally b/c they didn't knmow any better...such as a bad tune. There are better ways to make power also. Especially the few WHP you may see from a pulley. I also hope that RRM works to develop them. Without personal experience I will never doubt the quality of their products.

 

to install? or not to install.. lmao

 

Just do it. Your parents will never notice. Just hide the stock pulley well. Maybe a safety deposit box at the bank?

 

^^haha. will do tomoro then. i only listen to blacksheep

 

so lets have a pulley group buy hahahahahhaha

 

Myers racing builds motors for drag cars to (cast iron block light weight aluminium pulley). I am over beating this dead horse.

 

Good. Let it go. Everyone can agree to disagree and be grown ups and all that sh*t.

 

Hey, thanks to "the cosworth" for correct attribution. (The company name is "Mach V Motorsports," by the way, not "Mach V Performance.") I wrote that original article. And I still think it's true, for the most part. It is my opinion. I have not done an a/b test to prove it. But here's one of my major thoughts on tuning:

The factory engineers are not stupid.

EVERY single part on our cars has been the focus of hundreds, maybe thousands of hours of engineering design and analysis time. Many of these parts have evolved over ten or fifteen years. Weight has been shaved. Parts have been strengthened. If the part is still on the car at this point, it's probably for a reason.

Now, there are many reasons why a certain part is made a certain way. It might be too expensive to make it some obvious "better" way. Or it might generate too much noise. Or, maybe, it would lower the lifespan of the engine. Given that the normal lifespan is probably well in excess of 150,000 miles, this might be impossible for us to test. But somewhere in the depths of Mitsubishi, there's a guy that knows.

Since I wrote that original article years ago, I haven't seen another crank failure. So I'll probably go back and soften that some -- these days I don't try to talk people out of the lightweight pulleys. But I still think you are giving up something by removing that harmonic dampener pulley, and it's probably engine longevity. There's not a three-pound pulley on the car for no reason.

--Dan
Mach V
MachEVO.com