45 DCOE's from 3 to 5 progressions - Help
sooty - 7/5/14 at 11:30 AM
Found that my 45's are 3 hole progressions where they are fitted to 2.1 Zetec, been told I should use the 5 hole progressions.
Seen at some sites that some drill their own progressions for either 4 or 5 hole depending what they are fitted to.
Anyone know of any details of the positioning and sizes of the new holes for a Zetec etc. or where I can find them.
Reason, mine is popping in exhaust at the point of change from fast running to top range
Thanks.
Paul Turner - 7/5/14 at 11:49 AM
quote:
Originally posted by sooty
Anyone know of any details of the positioning and sizes of the new holes for a Zetec etc. or where I can find them.
Drill them yourself and you will probably wreck your carbs. You need a jig, Weber used to offer the service as did other specialists.
quote:
Originally posted by sooty
Reason, mine is popping in exhaust at the point of change from fast running to top range
My Zetec (standard 2 litre with FZ2002 cams) ran on 45's (36mm chokes) with 3 holes for several years. When I first fitted it I planned to get
the holes drilled whilst the carbs were off but the specialist (who had a jig) said to try them first and then make a decision. After he had set the
car up it ran perfectly fine on 3 holes. No need to spend any money.
It depends to some extent on who sets the car up and how competent they are. If you have 5 holes and use a total numptie (there are loads about) it
will not run well. Use an experienced tuner who knows Webers and it will probably be fine with 3 holes.
[Edited on 7/5/14 by Paul Turner]