Re: Question about roller weights
The higher weight rollers will give you better fuel economy. There's a limit though in how practical you can make that.
I was given the opportunity by Dennis49 a couple years ago to try some 23 gram Dr. Pulley weights. I could literally see my MPG climbing on the freeway ...but I had a lot of vibration at lower speeds that made me so uneasy about the effect on the drivetrain that I pulled them back out within a couple miles. It was like always being in way to high a gear on a car with a manual transmission.
Another place you get vibration from is the weights not moving smoothly. Even the rollers don't roll. They slide. If they don't wear evenly, they get flat spots on them. As this gets worse and the inside of the variator gets gunked up with belt dust, you'll get more and more vibration...in other words loose the "smoothness".
Malossi weights probably work great, but they are the same technology as the OEM weights. The only difference is the ability to chose a different weight. A nice part about the Dr. Pulley weights is they give you a benefit at low speeds and at high speeds. You'll find your rpms will jump about 500 at low speeds, which will help on your search for smoothness. A better benefit IMHO, is the drop at highway speeds in your rpms. I find my 19 gram DPS weights bring my rpms at 70 mph indicated to about 5300. With the OEM weights, that was closer to 6800. The engine still felt "smooth" with the OEM weights, but once you've felt the more relaxed feel of the DPS weights, you won't want to go back. It's like having the best of the 16 gram roller weight and the 21 gram roller weight.
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