Spoke to Anthony at Fast Road Cars who confirmed that the main jets were way too big at 170. I need to measure the venturi size so that he can tell me the base sizes I need but more likely to be in the region of 145 main and i55 air correction. I'll post all the findings for future ref once I have it sorted Off to OZ in a weeks time, so it may be a few weeks before I get the chance to work on it.
2 Vacuum take offs from each carb - all linked and conected through the spark sustain (or is delay) valve and fuel valve as per original. All new silcone vacuum hose. If it all works out, I'll try and get round to writing a "how to" article for the magazine. Still unsure about the timing though. I feel that having fitted the Kent cam and the Weber carbs that some form of adjustment would be necessary. I guess a rolling road session would answer it but there's not many left that want to deal with "old fashioned" set ups. I have a pretty good ear, so that will my setting tool. bob Craig (Q2-267) >----Original Message---- >From: j...@quantums.info >Date: 20/03/2009 10:18 >To: <quantumowners@googlegroups.com> >Subj: [Quantum Owners] Re: DCNF CONVERSION > > >I'm not a fan of carbs so i can't really help you with that. >Do you have a vacuum connection to each carb barrel or just from one ? >I know people often run twin carbs with the vacuum disconnect but it >will be better if it's working. > >Jim > > >Bob Craig wrote: >> Hi Jim, >> I've ran it at 12 degrees with no problems but wasn't sure if it >> should be changed after fitting the DCNFs. >> >> vacuum is plumbed in to the carbs but doesnt have much effect, >> certainly not the effect from the standard set up. >> >> I'm pretty sure that the carb jetting is wrong - the mains seem very >> big, they are usually smaller than the air correction jets. I've got a >> few numbers for people who may know, so I'll try and contact them. >> >> Bob Craig (Q2-267) >> >> On 20 Mar, 08:56, Jim Hearne <j...@quantums.info> wrote: >> >>> If it's not pinking then 12 degrees should be fine, its what i used to >>> run my CVH's on. >>> Have you got a a vacuum advance plumbed in for the distributor ? >>> >>> Jim >>> >>> >>> >>> Bob Craig wrote: >>> >>>> Does anyone know the best jet sizes for DCNFs on a CVH running a Kent >>>> CVH22 cam. I have the car running not too bad but I am getting >>>> spitting back on light throttle. I have carried out all the >>>> adjustments as per the weber guide but can't get it spot on. >>>> >>>> Current sizes are: >>>> Air correction - 150 >>>> Emulsion - F22 >>>> Main - 170 >>>> Idle - 50 >>>> >>>> Also, should the ignition timing be adjusted - currently at 12 BTDC >>>> >>>> Any comments welcomed. >>>> >>>> Cheers >>>> Bob Craig (Q2-267)- Hide quoted text - >>>> >>> - Show quoted text - >>> >> > >> >> > > >> > Get up to 50% off Norton Security - http://www.tiscali.co.uk/securepc _________________________________________________________ --~--~---------~--~----~------------~-------~--~----~ You received this message because you are subscribed to the Google Groups "Quantum Owners Group" group. To post to this group, send email to quantumowners@googlegroups.com To unsubscribe from this group, send email to quantumowners-unsubscr...@googlegroups.com 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). -~----------~----~----~----~------~----~------~--~---
