ORIGINAL: drewbags
Yarom
I agree we should not bash the DA, it is by all accounts a great engine and I don't think you can fault their after sales service, which at the price of the engine should be expected and I would encourage all of us to be circumspect when comparing the 2, we don't want another thread locked!!
However, I have been shot down on several UK boards by die-hard DA supporters when I have mentioned how well my DL runs, I didn't mean to put down the DA but that is how it is interpreted! The bottom line is that the DL is a great engine at a great price and you can't fault people for being over enthusiastic about it.
By the way I get 7300rpm on a 3W 23x8 on a KS cannister, not a pipe, which is pretty good in my book.
We should never need to make a comparative statement between brands. Others who want to experiment will do so to learn for themselves. "Believers" in one brand over another will discredit contrary information, anyway. Even to the point of posting replies TO someone calling them a liar when they post THEIR results with a certain engine. Of course, it doesn't make a whipstitch difference that the critics do not have any first hand experience, either. Add to that the "standard" forum-doubt on stated rpm readings and comparing becomes an exercise in futility.
It is just ridiculous to see the brand debates rage when they are so pointless.
Your 3W rpm figures sound right based on the DL 50's I have. Canister systems can help things a lot, also.
The DL uses a different carb than other 50cc engines; maybe there are some differences to attribute to that.