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Title: Oldschool 1800cc jetting advice Post by: Christoph on March 19, 2013, 21:14:18 pm Hey Guys, I hope you can help me.
I´m currently building a "Back in the Days" 1800cc engine and would appreciate jetting and venturi size advices for my Ida´s specs: -AS41 case -74mm counterweight crank -88 Thick Wall Mahle/Empi Nicasil P&C -light flywheel, 8 doweled -Engle w110 -74g lifters -slightly ported heads, stock 35,5x32 valves and springs -8,5:1compression -factory rockers -Bosch 010 -blue Bosch coil -26mm oilpump -deep sump -912 oilcooler -36hp/early 40hp shroud -glasspack/35mm header (I know it´s small, will update it later) -48 ida, 42mm vent at the moment -not sure if short or tall manifolds? -Berg linkage -factory fuel pump -car is running 6V Any suggestions are very welcome!!! Thanks, Christoph Title: Re: Oldschool 1800cc jetting advice Post by: Jim Ratto on March 19, 2013, 21:20:13 pm 32mm vent if you can find them for 48IDA
55 idle x 110 air corrector/jet holder 135 main w/ F2 tube 180 air corrector But remember, pinpointing jetting on the internet is a real guessing game. Title: Re: Oldschool 1800cc jetting advice Post by: Sarge on March 19, 2013, 22:59:46 pm But remember, pinpointing jetting on the internet is a real guessing game. :o :o That bein' said, I had a couple of engines similar to this. My combo wound up being 140ac, f7, 145m and 120/65 on the idle circuit with the 37mm vents. It was eye watering at idle but made good power both as an 1800 and as an 1835 with either a 110 or 125 Engle cam. Like Jim pointed out though, it's a seat of the pants deal; you gotta make the call yourself! Good luck! Title: Re: Oldschool 1800cc jetting advice Post by: Christoph on March 20, 2013, 20:58:07 pm A huge thank you to both of you, now I have a guideline I can work with!
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