does vw 8v gasoline camshaft fit 1.6/1.9 idi?
not without extensive modifications, that was discussed recently.
the pulleys are completely different and the head needs to be machined so the lobes will clear.
I must have missed that discussion. Head needs to be machined? Why?
Another note that might help with using a gasser cam is that you can section the cam pulley like many aftermarket adjustable cams sprockets are made and use the Diesel outside and the gas center hub.
I too must have missed that. I would be interested if anyone knows the thread. I have done some reasearch in this but haven't gone far enough to make it happen. Much better selection of cams if it did work.
Diesel camshafts, if I recall correctly, don't have any overlap between intake and exhaust valves while gasser camshafts do have overlap.
if this is an old topic, it means someone must have tried it out.
like to hear any actual benefit/disadvantage of gasser cam with respect to everyday driveability, mileage and power loss or gain.?
will a diesel engine respond the same way gasoline engine does with changes in valve timing? closer lobe separation? aggresive ramp profile, etc..
I am the author of the original thread linked to on the TDIClub page. The idea of using a gas cam in a Diesel is not my idea, nor is it particularly new; I just bothered to do some research into it. It's also not only an idea but has been tried for several years.
Shortysclimbin, who is also a member here,
posted about his experiences installing a 2.0 8V cam into his TDI head.
IMO the narrower width of the gas cam sprocket is not a huge deal because the torques on the valvetrain are not too large; the width is there because of the injection pump.
The thing is that atleast with the cam from 1.8gti and 2.0 2e engine there are only 4 points machined to fit the head(bearings...) You can get the one that is left unfinished machined so it will actually fit in a diesel head. The sprocket is the easy part since you can make a adjustable hybrid one from diesel and gasser sprocets.