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+--- Thread: Carbureted cb !!!! (/showthread.php?tid=261)
RE: Carbureted cb !!!! - Tev62 - 06-12-2023
(06-12-2023, 07:01 AM)GoldOxide_imp Wrote: The modern air-cooled CB1100 had to meet international emission standard(s) in order to be marketed viably. That might explain why lump performance is so modest.
I found it interesting to note the CB's compression ratio is 9.5:1 Vs 13.5:1 of the Aprilia Tuareg (660cc twin) I was riding a few weeks back. That is some difference. No doubt emission targets had a great role in that given the tolerances of an air-cooled engine.
Out of interest, some other four pots.:
12.2:1 for the Suzuki GSX-S1000GT
11.6:1 for the Honda CB1000R
11.8:1 for the Kawasaki Z1000SX
14:1 for the Ducati Panigale V4
RE: Carbureted cb !!!! - GoldOxide_imp - 06-12-2023
I like the compression ratio on the CB1100. It really helped make burning regular octane fuel a zero thought process.
The power is there, albeit for a 1100 cc air-cooled lump.
RE: Carbureted cb !!!! - peterbaron - 06-12-2023
^^+1^^
RE: Carbureted cb !!!! - 1973cb750 - 06-13-2023
some day im gona buy a spare head and port it and install some bigger valves i have a small mill i bet i can i have bult quite a few sets of cylinder heads for cmall and big block chevys and mopars
RE: Carbureted cb !!!! - 1973cb750 - 06-24-2023
not related but check these out
![[Image: 70f6db76b50b0c4d8f40c541b59ba542.jpg]](https://cb1100forum.net/forum/uploads/imp/202306/70f6db76b50b0c4d8f40c541b59ba542.jpg)
![[Image: 5566627e952163a4d6168b9cde143f4a.jpg]](https://cb1100forum.net/forum/uploads/imp/202306/5566627e952163a4d6168b9cde143f4a.jpg)
RE: Carbureted cb !!!! - peterbaron - 06-24-2023
I like the silver one
RE: Carbureted cb !!!! - GoldOxide_imp - 06-24-2023
(06-24-2023, 03:03 AM)peterbaron_imp Wrote: I like the silver one
(+1) The lump looks familiar, perhaps classier.
RE: Carbureted cb !!!! - FLYTYM_imp - 06-24-2023
I like those case savers,Active,are they available here in the U.S.?
RE: Carbureted cb !!!! - The Gecko_imp - 08-24-2023
Is there anybody on the forum who knows what it takes to replace the CB1100's FI with carburetors ?
Does it involve
- changing the fuel pump ?
- the whole ignition system ?
- the ECU ...
Airbox and carbs is easy, but can the rest be done without sinking a lot of money with uncertain results ?
RE: Carbureted cb !!!! - 1973cb750 - 08-24-2023
i love it on one hand on the other id just buy a older 1100 f seams like a lot of work