Tuning Webers

[keith.rose1]

Any suggestions for someone to sort out my Weber 45 setup on 2 litre Raceline Zetec? Have used baseline spec from Raceline, now needs tweaking.

I live in Loughborough, Leicestershire.

Thanks, Keith

[BlackSeven]

Keith assuming you have a stock Blacktop and the 5 progression hole Webers I can help you out with some tried and tested jetting; I will pm you when I've had chance to look. Rob

[seventh-heaven]

Northampton Motorsport if you can't find anyone closer.

[keith.rose1]

Thanks Rob

Yes it is a blacktop, with 45 DCOE. However they have 3 progression holes, assuming those are the ones under the blanking plug by the pump jets and idle screw. Middle size of the 3 is 1.0mm dia, so I assume they are 80, 100, 120

 

Keith

[Matthew Willoughby]

I would take it to the rolling road at Northampton Motorsport.  They are Weber dealers and specialists in tuning them.

[BlackSeven]

Keith, I think the only way that you will get the progression phase anything like acceptable with 3 hole 45's will be by using massively rich idle jets /air bleeds to mask the problem of too few progression holes.

Before you spend good money on a rolling road set up I'd look carefully at the cost of swapping your 3 hole 45's for the zetec specific 5 hole 45's; I got a pair of the 5 hole ones brand new for around £650 and you should be able to get over half of that back on Ebay for your existing carbs. 

I will also share my 5 hole jetting wth you which took a good few hours on the RR to perfect and works surprisingly well. 

Rob

 

[keith.rose1]

Thanks Rob, will have to think of what I am prepared to do at the moment

Keith