aaron1976
Full Access Member
I finished installing a camshaft from Russ, Type4 and although I have a few bugs to work out I thought I would post a report on what I have noticed.
Torque and lower egt's. That is what I have noticed and even with lifters that don't like being on a new cam, I have more torque. My lifters are making a lot of noise and if I rev over 2500 rpms, I lose 2 cylinders as the lifters seem to collapse until I let the rpms drop down to 1500 or so.
The new lifters are ordered and I am not going to drive the truck again until I change them out and I can't wait. I drove down to Logan, Ut yesterday and there are plenty of climbs to test the cam out on. I have an ATS non wg turbo and the turbo comes in about 300 rpms sooner. Even if I drop out of the turbo boost the engine just keeps making torque. Before, if I let it drop below 2100 rpms (out of the turbo's operating range) the engine would fall on it's face and I would have to down shift. Not so now. the turbo makes 4 psi or so at 1700 rpms and that makes a lot of difference.
The egt's are about 150 lower too so that is always a good thing.
The horse power is down right now but that is due to the lifters and probably needing to be timed again. My injectors are at about 300k so I think they will make a big difference too and even with the lifters rattling along I can tell a very noticeable difference in the torque and torque band.
So that plan is to get the new lifters and pushrods in and replace my injectors. Then I will have it timed and see what it will do. I really think I will like it. It seems to love the 8 and 9 percent grades now. I can't wait to get it all buttoned up and do some towing.
I will post the progess and results as things progress.
Torque and lower egt's. That is what I have noticed and even with lifters that don't like being on a new cam, I have more torque. My lifters are making a lot of noise and if I rev over 2500 rpms, I lose 2 cylinders as the lifters seem to collapse until I let the rpms drop down to 1500 or so.
The new lifters are ordered and I am not going to drive the truck again until I change them out and I can't wait. I drove down to Logan, Ut yesterday and there are plenty of climbs to test the cam out on. I have an ATS non wg turbo and the turbo comes in about 300 rpms sooner. Even if I drop out of the turbo boost the engine just keeps making torque. Before, if I let it drop below 2100 rpms (out of the turbo's operating range) the engine would fall on it's face and I would have to down shift. Not so now. the turbo makes 4 psi or so at 1700 rpms and that makes a lot of difference.
The egt's are about 150 lower too so that is always a good thing.
The horse power is down right now but that is due to the lifters and probably needing to be timed again. My injectors are at about 300k so I think they will make a big difference too and even with the lifters rattling along I can tell a very noticeable difference in the torque and torque band.
So that plan is to get the new lifters and pushrods in and replace my injectors. Then I will have it timed and see what it will do. I really think I will like it. It seems to love the 8 and 9 percent grades now. I can't wait to get it all buttoned up and do some towing.
I will post the progess and results as things progress.