elie boone Posted May 13, 2014 Share Posted May 13, 2014 Is ok that the injector ( Weber Pico ) only just enters the mounting hole ? the rubber O ring just seals the front of the mounting hole and the electric connector is touching the cil head. I fear they are to short the part nr is WF1024 Link to comment Share on other sites More sharing options...
elie boone Posted May 13, 2014 Author Share Posted May 13, 2014 Can anyone tell me the distance from O ring to O ring on a Duratec fuel injector ? Link to comment Share on other sites More sharing options...
7 wonders of the world Posted May 13, 2014 Share Posted May 13, 2014 Normal practice is to use the small Pico versions in the throttle body mainly for bonnet clearance above the rail, though they offer a different spray pattern for TB mounting, and use the OE green Bosch disc injectors (R500 & X330)in the OE head location - I've not measured the difference in nose protrusion though for comparison. I've a set of OE injectors if you need a dimension though? Link to comment Share on other sites More sharing options...
7 wonders of the world Posted May 13, 2014 Share Posted May 13, 2014 O rings C-C = 64mm Bottom O ring centre to tip = 8mm Link to comment Share on other sites More sharing options...
elie boone Posted May 13, 2014 Author Share Posted May 13, 2014 The Pico's are only 38mm, do you know by any chance if the Bosch injectors are around 13ohm resistance ? Link to comment Share on other sites More sharing options...
elie boone Posted May 13, 2014 Author Share Posted May 13, 2014 Anyone fancy some brand new 330cc Pico's ? Link to comment Share on other sites More sharing options...
Support Team Shaun_E Posted May 14, 2014 Support Team Share Posted May 14, 2014 I've got some short injectors on mine (the blue ones on the left half way down this page) as the Bosch green fouled the filter backplate. They barely fit in the throttle bodies but haven't caused any problem. If you are using the Jenvey fuel rail then Jenvey can supply some small plastic spacers which help locate them. Link to comment Share on other sites More sharing options...
elie boone Posted May 14, 2014 Author Share Posted May 14, 2014 The injector holes are blocked in the Jenveys and I don't intend to open them up. I have sourced some green injectors that are a very close match to the Caterham supplied one's but they are 3mm shorter. I just need to chose between conical spray pattern and twin spray pattern Link to comment Share on other sites More sharing options...
Pendennis Posted May 14, 2014 Share Posted May 14, 2014 But it's been proved they work better if sprayed into the TBs In addition I believe they work even better sprayed from the underside I didn't know that anyone injects direct to head anymore Those picos work perfectly with the Jenvey TBs and fuel rail if that's what you got and as Shaun states you just need a nylon spacer put in TBs which you could easily fabricate yourself If your using some other setup then please excuse me 😬 Link to comment Share on other sites More sharing options...
elie boone Posted May 14, 2014 Author Share Posted May 14, 2014 If I am correct the RTB use the std injector position and that seem to work fine, I will use the dual injector so it sprays direct into the valve channels Link to comment Share on other sites More sharing options...
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