What is amazing to me is that Nissan spent a lot of research and development to come up with this awesome technology and everyone seems to want to change before they even drive the vehicle.
I know JWT is a manufacturer and not a tuning shop, but if you can get this worked out to adjust the clevis pin to get maximum lift and duration, you'll have people beating your door down to get you to tune their cars! Maybe you should open a tuning shop..... I'd bring my car to San Diego to have this done.
Amazing video! Thank you so much. The question is how much relief is cut into the stock pistons and will the valves clear the pistons @ .500" lift? If so, the next question is at 0 degrees cam advance. is the lift still .000"? If it is not, the ECU is not going to like it in terms of throttle plate opening. If 0 degrees cam advance gives .000" lift and 86.5 degrees advance give .500" lift with 260 degree cam duration at .050" lift, we will likely have a winner in terms of tuning!
I'm guessing that the phaser controls advance and retard of the valve events. The elliptical seems to only control lift and duration in a linear fashion. It's the duration that's jacking me up. How in the world are we getting any kind of performance with a valve open for 60 something degrees of rotation? I'd think it would max out at 1800rpm. Something doesn't compute.
It's not camless, The cam is an oscillating cam working against the inlet bucket tappet. A motorbike used overhead oscillating cams back the in the 50's. Didn't have the variable motion linkage. Porsche 1961 patent GB861369, has a high mounted oscillating cam mounted on a moveable pivot so motion could be variable. Did away with the bucket and spring by having double follower/rocker.
My concern with this design would be that there is no shortage of moving parts! Of all the variable timing systems I've seen, this one takes the cake in moving parts. How reliable can it be developed out to be given all those moving parts? Not exactly an elegant design, but still an interesting one.
I wish I had the money to just buy one of these cars and take it apart. Videos suck. I needed to see what that thing you were rotating moves while its moving
Yikes 😬. It's really an ingenious system but would require better materials. That duration is crazy low! I have to be missing something. I get that we're running without throttle plates but we seem to be missing about 160 degrees of duration there. Does anyone know how that works? Sometimes it clicks while I'm writing, not this time.
What is amazing to me is that Nissan spent a lot of research and development to come up with this awesome technology and everyone seems to want to change before they even drive the vehicle.
I know JWT is a manufacturer and not a tuning shop, but if you can get this worked out to adjust the clevis pin to get maximum lift and duration, you'll have people beating your door down to get you to tune their cars! Maybe you should open a tuning shop..... I'd bring my car to San Diego to have this done.
Amazing video! Thank you so much. The question is how much relief is cut into the stock pistons and will the valves clear the pistons @ .500" lift? If so, the next question is at 0 degrees cam advance. is the lift still .000"? If it is not, the ECU is not going to like it in terms of throttle plate opening. If 0 degrees cam advance gives .000" lift and 86.5 degrees advance give .500" lift with 260 degree cam duration at .050" lift, we will likely have a winner in terms of tuning!
I'm guessing that the phaser controls advance and retard of the valve events. The elliptical seems to only control lift and duration in a linear fashion. It's the duration that's jacking me up. How in the world are we getting any kind of performance with a valve open for 60 something degrees of rotation? I'd think it would max out at 1800rpm. Something doesn't compute.
I like the path you were taking. Are you still around?
this might sound dumb bu ive been wating forever and still havnt heard of anyone cracking the vvel. has anyone done it yet?
Did you ever try the vq application at the black line and is their a possibility of a median between the two?
VVELACTRMOT-B2 codp1093 Nissan patrol model2010 plz halp
this might sound dumb but is it possible to put a different cam in there for Performance or the stock cam is good enough
It's not camless, The cam is an oscillating cam working against the inlet bucket tappet.
A motorbike used overhead oscillating cams back the in the 50's. Didn't have the variable motion linkage.
Porsche 1961 patent GB861369, has a high mounted oscillating cam mounted on a moveable pivot so motion could be variable. Did away with the bucket and spring by having double follower/rocker.
My concern with this design would be that there is no shortage of moving parts! Of all the variable timing systems I've seen, this one takes the cake in moving parts. How reliable can it be developed out to be given all those moving parts? Not exactly an elegant design, but still an interesting one.
Well. If you ever hear of one of these braking down let me know. Cause I don't think it's every happened.
I wish I had the money to just buy one of these cars and take it apart. Videos suck. I needed to see what that thing you were rotating moves while its moving
Quadrunner you can take mine apart if you throw new pistons in it
Nothing to see here for trolls and small children, move along.
I see cams... You have earned another dislike
Yikes 😬. It's really an ingenious system but would require better materials. That duration is crazy low! I have to be missing something. I get that we're running without throttle plates but we seem to be missing about 160 degrees of duration there. Does anyone know how that works? Sometimes it clicks while I'm writing, not this time.
Hi Kurt, the cam lobe moves back and forward so count the degrees on the way back also.