e30 timing! argh

[boosted-m42]

hey everybody new to this forum and have a question.....want to know where i can find out how to time my 1991 318is..any imput would be nice.thx
tyler

[Turbo_Bimmer]

If you mean 'advancing' the timing ignition, it can't be adjusted on the M42.

If you want to set the cams to the proper 'stock' position, then, with the valve cover removed, you bring the #1 piston to TDC and the cams to close the valves on cyl#1, then you place a straight edge or ruler on the top of the alignment squares that are at the rear of the cams and move the cam in the sprocket until the two flats are in the same plane (same angle)

If you want to play with the cams for performance, you can have +/- 6 degree adjustement on each cam since the bolt holes of the sprockets are slotted. From what I read of guys doing it, the best setup is to advance the intake cam 5 degree, and don't touch the exhaust one.

[svtcobra666]

Anyone already tried this on a M42 ?
how much of a power increase can it make ?

[Silverblades181]

From what I've heard, if you play with the advance, you either end up winning power in the upper band and losing in the lower band or vise versa. I think the best way to win power with the M42 without investing too much money is the MarkD chip http://www.dsylva-tech.ca/

[svtcobra666]

Justement, je viens juste d'installer cette chip il ya 2 semaines. C'est bien, mais tu sais on en veux toujours plus !! :D

Je peux pas croire qu'un (excellent) 16valves de 1.8 litre ne puisse pas developper au moins 150-160 ch en tournant a 7000 tours...

Pour ce qui est des cam sprockets, est ce compliqué a ajuster ?
Quelle shop fait ca ?

Merci.