Throttle bodies...crossflow

[neil parsons]

Does anyone have experience of fitting these.

I made up a lovely set of twin 40 dellortos with big fook off trumpets and nice linkage , however the carb nearest the bulk head interfered with the master cylinder.

So , I sold the lot to another Dutton owner (fancy that) for his crossflow engine.

I now have a single side draught manifold and could go one of three routes :

• Single weber / dellorto
• 2 x bike carbs
• Throttle bodies (proper ones)

Anyone done any of the above  and any guidance would be much appreciated as fuel injection / throttle bodies is all new to me.

Neil

[Steve Kerswell]

Big dellorto, say a 45. or the weber. throttle bodies and bike carbs require strict metering and pressure. I have a Robin Hood sat here on 4 bike carbs, took  months and a lot of rolling road to get right, pump pressures and filters etc. saying that it now goes and sounds great. Also have a pinto engined car here with twin 45's that is now set up and flying, I suppose you spend your money and take a chance. What else is done to the crossflow? Should be plenty of info on setting up single 45 as they were developed for racing on a single carb.

[Steve Kerswell]

Yep, that's a good point, I'd stick with a big ole Sidedraft if you want to use that manifold. 

[Barry Foley]

http://www.classicfordmag.co.uk/files/2011/07/CLF166.bike_.pdf

A good clear article on the topic.