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Are 47mm carbs to big??
Posted: Wed Dec 21, 2005 12:43 am
by jr_vw2
I am building a 1915 running a engle 110 cam 1.1:1 rockers, I am running stock valve sizes but the heads are ported and polished. will 47mm carbs be too big?? should I stick with 40's?? Please help as I am about to order them and I dont want to run into problems down the road. thanks guys
Posted: Wed Dec 21, 2005 12:54 am
by Gene-C
47's are big for your engine, but you can also have them jetted for your flow requirements this will cost more though. I would stick with 40's for what u have as engine (stock) and then jet them for any larger engine build in the future.
Posted: Wed Dec 21, 2005 12:55 am
by UncleBob
47mm? Where are you gonna get those? I think dual 40's will be plenty on a 1914, especially if you're running stock valves. However, if you ever suspect a big engine might be in your future, a set of 44's could be jetted down to work.
Posted: Wed Dec 21, 2005 1:08 am
by jr_vw2
scat has a set o solex 47mm's out in the jc whitney
Posted: Wed Dec 21, 2005 3:14 am
by Gene-C
47's are way too big for you engine. I ran 44's for years and could never get them jetted down enough. Traded for 40's which helped . These toys run better lean for me. Eventually went to injection to cure my quest. Gene C Gadget #729
Posted: Wed Dec 21, 2005 3:26 am
by jr_vw2
Thanks for the quick responses I just ordered a set of 40mm kadrons, along with some other goodies. thanks agian
Posted: Wed Dec 21, 2005 3:29 am
by UncleBob