bs34's junk?

larrycavan wrote:

otakar wrote:

This is my GPz1150 with .420 lift cams and ported head. she moves like a bat-auta-hell. Will the BS34s compare to the top notch smooth-bores for drag strip use? NO. But they are one of the best street carbs around.

You don't get it either... well you sort of get it:) It's not about the drag strip at all...PERIOD

It's exactly about mid range punch. The PUNCH you want when you roll that throttle on and the bike comes on the cam. That's exactly where BS34's will rear their ugly teeth where as a good rack of smooth bores will give you a woody.. :laugh:

I'll wager 95% of the members here have never ridden a seriously fast street bike. If they did, this stupid topic would't keep coming up :woohoo:

My bike realy comes alive at mid range. I have no problem with my mid-range response. If everything is set up right they are beautifull. I have had plenty of smooth-bores in my time and I switched to these because i like everything about them on the street bike.

otakar wrote:

larrycavan wrote:

otakar wrote:

This is my GPz1150 with .420 lift cams and ported head. she moves like a bat-auta-hell. Will the BS34s compare to the top notch smooth-bores for drag strip use? NO. But they are one of the best street carbs around.

You don't get it either... well you sort of get it:) It's not about the drag strip at all...PERIOD

It's exactly about mid range punch. The PUNCH you want when you roll that throttle on and the bike comes on the cam. That's exactly where BS34's will rear their ugly teeth where as a good rack of smooth bores will give you a woody.. :laugh:

I'll wager 95% of the members here have never ridden a seriously fast street bike. If they did, this stupid topic would't keep coming up :woohoo:

My bike realy comes alive at mid range. I have no problem with my mid-range response. If everything is set up right they are beautifull. I have had plenty of smooth-bores in my time and I switched to these because i like everything about them on the street bike.

I'm sure they're just wonderful on your bike Otto. They are still no match for a properly tuned set of the right size smoothbores and they never,ever will be

larrycavan wrote:

otakar wrote:

larrycavan wrote:

otakar wrote:

This is my GPz1150 with .420 lift cams and ported head. she moves like a bat-auta-hell. Will the BS34s compare to the top notch smooth-bores for drag strip use? NO. But they are one of the best street carbs around.

You don't get it either... well you sort of get it:) It's not about the drag strip at all...PERIOD

It's exactly about mid range punch. The PUNCH you want when you roll that throttle on and the bike comes on the cam. That's exactly where BS34's will rear their ugly teeth where as a good rack of smooth bores will give you a woody.. :laugh:

I'll wager 95% of the members here have never ridden a seriously fast street bike. If they did, this stupid topic would't keep coming up :woohoo:

My bike realy comes alive at mid range. I have no problem with my mid-range response. If everything is set up right they are beautifull. I have had plenty of smooth-bores in my time and I switched to these because i like everything about them on the street bike.

I'm sure they're just wonderful on your bike Otto. They are still no match for a properly tuned set of the right size smoothbores and they never,ever will be

Larry, That is a complete statement and I can not argue or dispute it. But I will add that out of the 5%rs that ride a very fast sterrt bike, there is only another 5% that know how to toon it that well across the entire power band. I dont think that you can argue with that statement either. :blink: :lol:

It's nice to see everyone having a good conversation about this. It gets ugly too often. I believe that the bs34's on my bike, combined with some advice from Otto here, will run fine. I might switch to some nice Keihin CR's later if I feel like it, but the BS's will the the job done for now.

larrycavan wrote:

otakar wrote:

This is my GPz1150 with .420 lift cams and ported head. she moves like a bat-auta-hell. Will the BS34s compare to the top notch smooth-bores for drag strip use? NO. But they are one of the best street carbs around.

You don't get it either... well you sort of get it:) It's not about the drag strip at all...PERIOD

It's exactly about mid range punch. The PUNCH you want when you roll that throttle on and the bike comes on the cam. That's exactly where BS34's will rear their ugly teeth where as a good rack of smooth bores will give you a woody.. :laugh:

I'll wager 95% of the members here have never ridden a seriously fast street bike. If they did, this stupid topic would't keep coming up :woohoo:

Somebody Call my Name?



1150 40mm Smoothbores "Drop in Cams". Where's those "BS Carbs"? :laugh:

Anyone who wants a seriously fast street bike isn't going to waste time on a thirty year old bike if he is indeed serious about speed.

Here is another example of a CV Carb, the SU's, they have an oil damped slide. Think about that, every time the oil changes viscosity, your mixture changes! Had some on a MGB when I bought it, threw them in the trash, put on some Dellorto's instead, Oh and a 13B Rotary!


No thats not in the MGB, just a file pic from Google.

Here is a cross section picture of the SU.

hoghaterkaw wrote:

Anyone who wants a seriously fast street bike isn't going to waste time on a thirty year old bike if he is indeed serious about speed.

how seriously fast do you want to go on a streetbike? :laugh:

Kraz1 wrote:

larrycavan wrote:

otakar wrote:

This is my GPz1150 with .420 lift cams and ported head. she moves like a bat-auta-hell. Will the BS34s compare to the top notch smooth-bores for drag strip use? NO. But they are one of the best street carbs around.

You don't get it either... well you sort of get it:) It's not about the drag strip at all...PERIOD

It's exactly about mid range punch. The PUNCH you want when you roll that throttle on and the bike comes on the cam. That's exactly where BS34's will rear their ugly teeth where as a good rack of smooth bores will give you a woody.. :laugh:

That bike bogged before it revved, I had to wait 5 sec to hear the top notes! My bike doesn't do that. It sounded rough and junky as well, I wouldn't have showed my face in that video either. That dude was drunk or high, his clothing matched the bike perfectly though, I'm thinking he didn't have a license either. :woohoo:

I'll wager 95% of the members here have never ridden a seriously fast street bike. If they did, this stupid topic would't keep coming up :woohoo:

Somebody Call my Name?

1150 40mm Smoothbores "Drop in Cams". Where's those "BS Carbs"? :laugh:

larrycavan wrote:

otakar wrote:

This is my GPz1150 with .420 lift cams and ported head. she moves like a bat-auta-hell. Will the BS34s compare to the top notch smooth-bores for drag strip use? NO. But they are one of the best street carbs around.

You don't get it either... well you sort of get it:) It's not about the drag strip at all...PERIOD

It's exactly about mid range punch. The PUNCH you want when you roll that throttle on and the bike comes on the cam. That's exactly where BS34's will rear their ugly teeth where as a good rack of smooth bores will give you a woody.. :laugh:

I'll wager 95% of the members here have never ridden a seriously fast street bike. If they did, this stupid topic would't keep coming up :woohoo:

My motor doesn't come on the cam at 4 grand, so hopefully the midrange punch extends itself to much higher numbers ( use calculator) :woohoo:

On the other hand, I'm sold on the smoothbores and I'm walking away from dementia city, no good looking women there for sure. Just don't ever want to see another video like tha, Almost threw up. I wondered why he shut that down so quick, Dog the BOUNTY HUNGER must have pulled up to his tent over in the trees. Dog informs his gang, ok everyone put there ear plugs on, if he sees us he's probly gonna start the bike to scare us off, Beth u go first. Your the only one hear that can yell louder than that exhaust. If he gives you any trouble cut him down with multiple swear words (cuz it gives me a woody to hear that) and he'll cower down like a lil... OH boy this is wide open :woohoo:

Made some good money last two weeks and have time off starting monday, I'm gonna finsih that head and send it by the end of this week, so anyone waiting for that to happen, it's gonna happen. And I hope that sucker flows to beat the band. If the insurance companys decide fault was the other party I'll be getting a chunk of change and with it I'll buy some 34mm flatslides.

Ugly teeth and woodys don't go well togther,

Now can someone bring me another glass of that pure, clean, cold water? :woohoo:

I'm having visions of plummens dog :dry:

Does it really matter what carb you run? So long as the fuel-air mixture is right through out the rev range and the carbs themselves are not to restrictive.

I cannot see how it matters AT ALL to the cumbuston chamber what style/make/model of carb is feeding it so long as the mixture is right (and stays correct when changing from idle, to low, to mid to WOT, which is a question of tuning so long as the carb in question has no design flaws).

Do the RS carbs have pixie dust in the float bowls that magically help them make more power than BS carbs on the same engine while filling the cylinders with the same fuel air mixture?

Or the BS carbs are flawed in some way and cannot give a clean f/a mixture at all throttle positions?