View Single Post
les_garten les_garten is offline
Macht Schnell
les_garten's Avatar
Join Date: Jun 2003
Location: PSL, FL
Posts: 861
Originally Posted by WERK-I View Post
You're pretty close to having it right.

1. Cam timing and ignition timing are independent of one another.
2. Cam timing is referenced in relation to the crank(i.e.TDC---cylinder 1 & 4)
3. Ignition is referenced to the crank (i.e. BTDC at cylinder 1)
Correct, but once the distributer is timed to the crank. You can turn your cams around 180 degrees or 47 degrees, 0r 147 degrees and nothing will change on your strobe light. The timing for #1 and #4 as measured by your strobe will always be the same. The both fire at the Z1 mark. There's no way one bank of cylinders ignition timing can drift in relation to the other unless there is something strange going on in your distributer cap. And none of it has anything to do with CAM timing. You can pull the CAMS out of the engine and the strobe will still go off at the same places on the Crank pulley.

Back to the original post, there is no doubt that having your cam timing off can cause one bank to run greatly different than the other, and light some headers up. There is NO way to determine this with a timing light though.

EDIT: I wish there was though!!
---Les Garten---85 930, Andial IC, GHL Headers, Fabspeed Dual, K-27 HF2, 3.4 JE Full Finned 7.5:1 CR, 964 CAM'd, Carerra 3.2 Manifold Cut/Flipped, Tec3r, Siemans 55#, GSF Fuel Rails, Clewett Crank Trigger, Clewett Cam Trigger,Dual Plugged, ARP Head Studs/Rod Bolts, Clewett Wires.Tial 46mm WG, Tial 50mm BOV, WEVO Shifter,934 Boost Gauge, Wideband EGO Sensor/Gauge, C2T Head Gaskets, '88 MB 300TE,BMW R100RT

Last edited by les_garten; 03-19-2008 at 10:29 AM..
Old 03-17-2008, 06:20 PM
  Pelican Parts Catalog | Tech Articles | Promos & Specials    Reply With Quote #16 (permalink)