Metzman510 Posted March 2, 2020 Report Share Posted March 2, 2020 I need help identifying the cam in my 510. The engine is an L16 with some significant work done to it. Here are the specs: .450” lift, 274 duration, IO-31 BTDC, IC-63 ATDC, EO-67 BTDC, EC-27 ATDC (222 duration, IO-5 BTDC, IC-36 ATDC, EO-30 BTDC, EC-1 ATDC, @ 0.050” lift) Valve lash is 0.008”, Exhaust 0.010” cold. Good to 7000 RPM. The specs are from the data sheet for the cam that came with the car. The spec sheet has no branding on it and is very generic. The cam itself is not a regrind, it is apparently a new casting/forging as there are no weld or lobe-side grinding marks on it. The only identifying information visible on the cam itself is the word "Japan" and the number "210" cast into it. Thanks for the help! Quote Link to comment
datzenmike Posted March 2, 2020 Report Share Posted March 2, 2020 If it says Japan then probably a regrind then. 210 is a stock L16 head casting number. Quote Link to comment
Crashtd420 Posted March 2, 2020 Report Share Posted March 2, 2020 If it was a regrind it should be marked on the end of it by whom ever did it.... Quote Link to comment
Metzman510 Posted March 2, 2020 Author Report Share Posted March 2, 2020 No mark on the end opposite the cam gear. Can't see anything under the cam gear, cause it's in the engine and I don't want to pull the gear... Nice regrind job. Quote Link to comment
Crashtd420 Posted March 2, 2020 Report Share Posted March 2, 2020 46 minutes ago, Metzman510 said: No mark on the end opposite the cam gear. Can't see anything under the cam gear, cause it's in the engine and I don't want to pull the gear... Nice regrind job. The mark is probably under the pulley, that's where I've seen it... I had a regrind done a few years back, just by looks you couldnt tell it was done... You could probably slip the cam gear off for a look if you really wanted some day... would probably only take a half hour or so.... Just block the chain so you dont loose the tensioner..... Quote Link to comment
wayno Posted March 2, 2020 Report Share Posted March 2, 2020 Are not the markings on the rear of the cam, here is one I have with lash pads that go with it. Quote Link to comment
Crashtd420 Posted March 3, 2020 Report Share Posted March 3, 2020 (edited) 40 minutes ago, wayno said: Are not the markings on the rear of the cam, here is one I have with lash pads that go with it. Guess I'm wrong on the markings.... maybe I had it backwards.... Or it depends on who did it where they mark it... I'm going to see if I can find my cam pick .... Edited March 3, 2020 by Crashtd420 Quote Link to comment
Crashtd420 Posted March 3, 2020 Report Share Posted March 3, 2020 Yup mine was marked on the pulley end.... so just depends on where they feel like putting it that day.... The picture had me concerned when I saw it... that dowel pin looks like its barely sticking out..... I know it's the camera angle being straight on but it got me for a second..... Quote Link to comment
datzenmike Posted March 3, 2020 Report Share Posted March 3, 2020 I have an Iskendrian cam somewhere .. it's on the back. Quote Link to comment
banzai510(hainz) Posted March 3, 2020 Report Share Posted March 3, 2020 Japan or 210 is a Nissan cam most likely it’s a regrind .the back side of the lobe will be close to the base circle of the cam. my new cams were cast with CWC which I believe are USA made both Schneider&Webcamshfts i wouldn’t even worry about it.450 isn’t anything to brag about Quote Link to comment
datzenmike Posted March 3, 2020 Report Share Posted March 3, 2020 Stock is 0.413" on an L20B cam. Measure across the narrowest part of the cam and not on the lobe. A stock cam will be 33.09mm or near this, much less and the base circle has been ground down to produce the extra lift. The 222 duration is likely the stock 248 but measured at the 0.050" lift every one else uses. Nissan says 248 but does not specify a lift. Quote Link to comment
Metzman510 Posted March 3, 2020 Author Report Share Posted March 3, 2020 Good to know. I will check the cam narrow diameter as suggested. Quote Link to comment
datzenmike Posted March 3, 2020 Report Share Posted March 3, 2020 Lifts around 0.480" are close to stacking the valve spring I think. Quote Link to comment
hosestop@msn.com Posted March 10, 2020 Report Share Posted March 10, 2020 Need a pic of heal of cam lobes. Quote Link to comment
banzai510(hainz) Posted March 10, 2020 Report Share Posted March 10, 2020 480 is close but one could always machine the seat down where the steel washer fits to get it lower 1 Quote Link to comment
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