interesting here is the recommendations for idle jet size is consistently 50, with differing air corrections to adjust the idle air mixture and the progression.
Mine are 60s and are too rich. As Russell says, emissions can even be reached on my 60s but it runs like a dog on this setting. Ian On 15 April 2011 11:41, Ian Harrison <[email protected]> wrote: > Hmmm, Having trouble mailing you the exe at the moment, but here is the > output for a 2000cc car peak power at 6000 tuned for flexibility. > > I will look for a link for you to the program so you can download it for > yourself. > Ian > > >jettng: Jetting for DCOE Weber & DHLA Dellorto Carbs > (C)Dave Andrews > 1997 > Engine size in Cubic Centimetres 2000 > RPM at which peak power is made 6000 Please be realistic for best > resðÐÊs > Tune for best (P)ower or (F)lexibility F ËÈı > ÍÎÏ > Weber Carb Settings Dellorto Carb Settings > Ideal carb size 40 DCOE 40 DHLA > Choke size 34 34 > Main jets 140 140 > Emulsion tubes F9/F16/F2 7772.6/7772.5 > Air correctors 180 180 > Idle jets 50f9 (Weak F8/F11/F2 Rich F6) 50/7850.2 (Weak .6/.1 > Rich .8) > Pump Jets 40 40 > Aux Venturis 4.5 7848.2 > > <---------------Idle Airs------------> <-------------Idle > Airs----------> > Weaker Normal Richer Weaker Normal > Richer > F3,F1,F7,F5,F4,F2,F13,F11,F8,F9,F12,F6 7850.5 .10 .9 .4 .1 .3 .6 .7 > .2 .8 > > Idle jet airs in common use, weak to rich > F2 F11 F8 F9 F6 7850.1 7850.6 7850.2 7850.8 > > This program assumes one barrel per cylinder, 4 cyl engine > > > On 15 April 2011 10:16, Russell Willcox <[email protected] > > wrote: > >> Ian, >> Don't forget that they do an emissions test on the IVA, but if the >> jetting is for a lower cc engine it should be OK. My car >> was not running particularly well for the IVA and still isn't I can't get >> it to tick over low enough. >> >> Russell >> >> >> On 14/04/2011 23:10, Ian Mac wrote: >> >>> Thanks for the responses: I have gone through the carbs and have a >>> note of all the jets (but I have left it at work!) >>> However, I remember thinking the jetting was more akin to 1800cc not >>> 2000cc engine. >>> I can let you know tomorrow, but if you can send me the jetting >>> programme that would be very helpful. >>> >>> The only jet sizes I do have to hand are F16- 125 on main jets and 45- >>> F9 idle jets on 34mm chokes, but I cannot remember. >>> >>> The main thing I want to do for now is get the engine running to an >>> IVA acceptable standard and worry about correct setting up later. >>> >>> regards, >>> >>> Ian Mac >>> >>> On Apr 14, 9:44 pm, Ian Harrison<[email protected]> wrote: >>> >>>> Ian, 2.5 turns is 360 degrees two and a half times. >>>> >>>> What idle jets do you have in and what size choke are you on? >>>> >>>> I have a copy of a jetting program I can mail you off list if it would >>>> help. >>>> >>>> Ian >>>> >>>> Sent from my iPad >>>> >>>> On 14 Apr 2011, at 21:24, Steve Kodz<[email protected]> wrote: >>>> >>>> >>>> >>>> >> >> -- >> You received this message because you are subscribed to the Google Groups >> "Quantum Owners Group" group. >> To post to this group, send email to [email protected] >> To unsubscribe from this group, send email to >> [email protected] >> For more options, visit this group at >> http://groups.google.com/group/quantumowners?hl=en >> >> IMPORTANT NOTE: All information presented herewith is provided on an "As >> Is" basis, without warranty or the implication thereof. Neither the Quantum >> Owners Club nor the individuals associated with the Quantum Owners Club or >> in the preparation of the above information shall have any liability to any >> person or entity with respect to liability, loss, or damage caused or >> alleged to be caused directly or indirectly by the instructions contained >> within this or related message(s). >> > > -- You received this message because you are subscribed to the Google Groups "Quantum Owners Group" group. To post to this group, send email to [email protected] To unsubscribe from this group, send email to [email protected] For more options, visit this group at http://groups.google.com/group/quantumowners?hl=en IMPORTANT NOTE: All information presented herewith is provided on an "As Is" basis, without warranty or the implication thereof. Neither the Quantum Owners Club nor the individuals associated with the Quantum Owners Club or in the preparation of the above information shall have any liability to any person or entity with respect to liability, loss, or damage caused or alleged to be caused directly or indirectly by the instructions contained within this or related message(s).
