Hi Alex,

How did the LLWF experiment turn-out?

 

For those who installed the LWFW - do you notice that when driving at normal speeds on the road that the "revs" drop off extremely quick when up shifting? This in effect, causes the engine to jump "revs" when the next gear is engaged. On the track, everything is smooth and not a problem. Does anyone rev/match on the up shifts on the street to smooth things out? Or am I just paranoid about not causing any stress for the engine. I know its kind of irrelevant when the car is tracked on the weekend and then babied on the street during the week.

 

I don't think I have ever driven mine at "normal speed".

 

That's a bit logical with a LWFW

 

Well, my old 997 GT3 didn't have a LWF, but my F430 is a manual and its factory flywheel is very light. Yes, in normal driving the revs drop off quickly between shifts. Sometimes I'll give the throttle a tiny blip to smooth out the shift.

At a given RPM, the standard weight flywheel has greater built up momentum than the LWF, so when you take your foot off the gas the standard flywheel wants to keep turning, while the LWF slows down more quickly. The engine can more quickly return to idle with the LWF.

When performing quick shifts at high revs it's not a problem, but during normal driving, unless you perform the shift quickly, you may not always get a smooth shift. Experimenting a little with your throttle and clutch timing will help, too.

 

hey jmla, well it's turned out really well thus far and although 1st gear is a little more tricky for some... I'm loving it.

 

Hey Alex,

How is first gear tricky, do you mean from a standing start?