I had the JUN Flywheel I picked up from Z350Lover installed on Thursday, and I did some not-scientific testing runs with it.
In a nutshell, I drove the car up the motorway, got the car in-gear and at the start speed, and then used the stopwatch in the car to measure. Not particularly accurate, but I did it a few times to get an average
From 40-80km/hr in 2nd, with the stock flywheel in my car's setup I ran back to back 3.17s.
With the new flywheel, it blew out to 3.4s or so. I even made an extra couple of runs to make sure I wasn't fucking it up, but the were all hovering well above the non-flywheel time.
I also did 3rd gear pulls from 80-120km/hr. With the stock flywheel I was averaging around 4.5s. With the lightened flywheel, we're looking at 4.1s.
So it appears to be better for in-gear acceleration at higher speed (I'll have to give standing start a go, but I never measured myself doing a standing start pre-flywheel since I can't guarantee keeping my shifts constant) but, at lower speeds, its a penalty.
As for drivability, its not bad. The car isn't any harder to launch. One thing I noticed is that, with the stock flywheel, when I lift off the throttle and hit the clutch the revs will increase for a second before dropping, whereas with the JUN it stays constant a little before dropping.
Unsurprisingly, its ability to pull up hills is compromised. I used to drive my car low in the rev range, and in places where I used to keep it in 6th I find myself now having to find 5th.
There are rattles, but I'm not sure if some of them are install-related or not. I'll take it back to them and have a look, and if they can't fix it after 1-2 goes I'll be paying Nizmo Pete a visit.
Since I don't commute as much in my car anymore (and I'm considering buying an old banger for the times I do), and I would like to start focusing on doing track work i don't think it'll be an issue. Given the drivability of the 14lb 'wheel, I'm starting to think that maybe the 7lb Tilton one isn't too light
In a nutshell, I drove the car up the motorway, got the car in-gear and at the start speed, and then used the stopwatch in the car to measure. Not particularly accurate, but I did it a few times to get an average
From 40-80km/hr in 2nd, with the stock flywheel in my car's setup I ran back to back 3.17s.
With the new flywheel, it blew out to 3.4s or so. I even made an extra couple of runs to make sure I wasn't fucking it up, but the were all hovering well above the non-flywheel time.
I also did 3rd gear pulls from 80-120km/hr. With the stock flywheel I was averaging around 4.5s. With the lightened flywheel, we're looking at 4.1s.
So it appears to be better for in-gear acceleration at higher speed (I'll have to give standing start a go, but I never measured myself doing a standing start pre-flywheel since I can't guarantee keeping my shifts constant) but, at lower speeds, its a penalty.
As for drivability, its not bad. The car isn't any harder to launch. One thing I noticed is that, with the stock flywheel, when I lift off the throttle and hit the clutch the revs will increase for a second before dropping, whereas with the JUN it stays constant a little before dropping.
Unsurprisingly, its ability to pull up hills is compromised. I used to drive my car low in the rev range, and in places where I used to keep it in 6th I find myself now having to find 5th.
There are rattles, but I'm not sure if some of them are install-related or not. I'll take it back to them and have a look, and if they can't fix it after 1-2 goes I'll be paying Nizmo Pete a visit.
Since I don't commute as much in my car anymore (and I'm considering buying an old banger for the times I do), and I would like to start focusing on doing track work i don't think it'll be an issue. Given the drivability of the 14lb 'wheel, I'm starting to think that maybe the 7lb Tilton one isn't too light