Would probly be a bit louder, yes.... I just know I wouldn't want to be replacing my clutch springs every other week.
Just searched and saw that Skopod might have springs that engage more toward 6,000 rpm or so... and are better than stock.
Why wouldn't clutch springs engaging at 8,000 rpm be good in gridlocked uphill traffic, tho??? The longer the clutch springs go without engaging, the more acceleration and torque you will get in the extra 3 milliseconds it takes to engage. Optimum torque range seems to be around 9,000 rpm. So that seems to be right on the money.
Think about it, sparky. If you're stuck in traffic, would you want a guy on his MB, moped or motorcycle continuously zinging his engine to 6000/8000rpm next to you while you're crawling in traffic?
In Hawaii, we have thousands of high-performance obnoxious mopeds who constantly stab their throttle every two seconds or so, while riding. It sounds like the mating calls of the Hawaiian moped. The drivers are the "cool" guys wearing shorts, tee shirt and rubber slippers and no safety gear, ripping down the streets 24/7.
I don't want to be associated with that crowd. If I install 4,000/6,000/8,000rpm springs, my motorized bike will sound EXACTLY like a loud moped.
For my needs, 3,000 rpm clutch springs will work fine. That's about what's in most of the engines used here. And that's why my 460 engine sits on the shelf.....until I can find a reliable clutch with lower rpm springs.
Like I said before, I guess it's okay if your motorized toy is used occasionally. Once the MB becomes a daily commuter, ya don't wanna upset the other drivers on the road.
In Hawaii, we have much fewer roads and MANY cars on the road. A lot of them are stressed out in rush hour traffic, and I don't want to upset them.
Whatever works for your friend on his goped, more power to him.
