adjustable cam ? explain/85 318i 1.8L - BMW Forum - BimmerWerkz.com
3-Series (E21, E30) Chat relating to the BMW 3-Series from 1975-1983 and 1984-1991 line. Specific models: BMW 315, BMW 316, BMW 318, BMW 318i, BMW 320/4, BMW 320i, BMW 320/6, BMW 323i, BMW 320i. E30 Family models include: BMW 325e, BMW 325i, BMW 325is, BMW 325ix.

 
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#1 (permalink) Old 10-11-2005, 01:03 AM
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adjustable cam ? explain/85 318i 1.8L

they have adjustable cams, how do you do that ?
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#2 (permalink) Old 10-11-2005, 11:27 AM
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You can get an adjustable cam gear to advance or retard ignition timing but you cant adjust anything on the cam itstelf. The only ajustable lift cams are on the new BMW V8's and V12's and even then the cam doesn't change they just mechanically change the pivot point for the rocker shaft which changes lift and duration.
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#3 (permalink) Old 10-11-2005, 08:22 PM
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the M42's have adjustable cam gears, you can adjust 10 degreese on each cam i believe it was. if you adjust for more hp you loose torque if you adjust for more torque you loose hp so its a win loose situation...

to adjust the cam gears you just have to remove the valve cover the cam gear will be right there, you can loosen the nuts and adjust it, i dont recomend doing this yourself unless you are verry experienced...

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#4 (permalink) Old 10-11-2005, 08:27 PM
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right...don't mess with it...got it
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#5 (permalink) Old 10-11-2005, 08:36 PM
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hahaha

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#6 (permalink) Old 10-11-2005, 09:39 PM
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He has a M10 so he couldn't change anything even if he wanted to.
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#7 (permalink) Old 10-12-2005, 11:30 PM
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i just heard it mentioned, didn't know what they were talking about...
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#8 (permalink) Old 10-12-2005, 11:56 PM
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Quote:
Originally Posted by AJ's320i
He has a M10 so he couldn't change anything even if he wanted to.

i didnt say he had an M42 i was replying to your thread

You can get an adjustable cam gear to advance or retard ignition timing but you cant adjust anything on the cam itstelf. The only ajustable lift cams are on the new BMW V8's and V12's and even then the cam doesn't change they just mechanically change the pivot point for the rocker shaft which changes lift and duration.

as he has heard of the 318's having adjustable cam gears. i was telling him which engine did.

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