Opening up airbox?

650ed wrote: ........THERE AINT MORE 2X4!!!! :evil:

That's priceless!!!! :laugh: :laugh: :laugh: Ed

Kray-Z wrote: I'm finding this discussion very interesting. Unless you are an expert in tuning carbs and have a lot of time and gas to kill, for the best overall results, I would say stick with a properly maintained K&N filter in the stock air box and properly install and tune a Dyno-Jet kit. Most of my own stock CV's have Dyno-Jet kits in them now. It is relatively easy and works well enough. I don't drill out the stock slides unless I get an extra set first, just in case I ever want to return the carbs back to original. BTW, of all the CV carbs - I hate the BS34 Mikuni's the most - absolutely hate them!

I believe there is lots of things you can do with the intake side of the carbs (any carbs) that you can mess with to get more of whatever it is you want. One factory OEM example was the differences in the V65 Honda Sabre and Magna. The engines were nearly identical, yet the Sabre, with larger volumes in the exhaust and air box, made 4-5 hp and 2-3 Ft-lb. more torque than the Magna (cams were slightly different, too). So changing the air box can have some effect on performance if you try it. It might not be worth the effort, and you might end up not happy with what you get, though.

Other than maybe sort of looking like a racing engine should, and maybe making tuning access easier, I don't think pod filters are worth doing...(particularly on CV carbs) but are still better than open stacks or bells...that is crazy.

Kray-Z wrote:
Admit it - practical and sensible has absolutely nothing to do with it. :evil:

Irish-Kawi wrote:

Kray-Z wrote: I'm finding this discussion very interesting. Unless you are an expert in tuning carbs and have a lot of time and gas to kill, for the best overall results, I would say stick with a properly maintained K&N filter in the stock air box and properly install and tune a Dyno-Jet kit. Most of my own stock CV's have Dyno-Jet kits in them now. It is relatively easy and works well enough. I don't drill out the stock slides unless I get an extra set first, just in case I ever want to return the carbs back to original. BTW, of all the CV carbs - I hate the BS34 Mikuni's the most - absolutely hate them!

I believe there is lots of things you can do with the intake side of the carbs (any carbs) that you can mess with to get more of whatever it is you want. One factory OEM example was the differences in the V65 Honda Sabre and Magna. The engines were nearly identical, yet the Sabre, with larger volumes in the exhaust and air box, made 4-5 hp and 2-3 Ft-lb. more torque than the Magna (cams were slightly different, too). So changing the air box can have some effect on performance if you try it. It might not be worth the effort, and you might end up not happy with what you get, though.

Other than maybe sort of looking like a racing engine should, and maybe making tuning access easier, I don't think pod filters are worth doing...(particularly on CV carbs) but are still better than open stacks or bells...that is crazy.

Hey Kray, curious why you have such a disdain for the BS34's? I am new to carbs for bikes and just starting to get my feet wet, but I have had very little issues if any with my BS34's, just wondering why the hate?

Brett

GPzMOD750 wrote:

Kray-Z wrote:
Admit it - practical and sensible has absolutely nothing to do with it. :evil:

Of course it does! Otherwise, this would be a Harley forum.