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crash&burn

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ok now wait a second.  motovox?  that company sells ( distributes) what looks like cheap ass chinese made pit bikes scooters and those crappy electric stuff.   but they say its "innovative"  WTF?  maybe the sales of those "innovative" shit bikes are what funded the smart carb.??   with million dolla sales figured they could get a product out pretty quick.  maybe it takes so long because they are MAYBE being built in china>>??    ( OH CRAP!_)

 

 

http://www.motovox.com/who-we-are.php#

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Emailed them askin what's goin on with this and what's goin on with the smart carb.. Here's what I got back,,lol

 

Michael,

 

Steve Tutt forwarded your inquiry to me. Due to the nature of public transactions, we cannot comment on any corporate possibilities that you may have heard of in public forums.

 

No need to worry about the SmartCarb.

 

William

 

 

William Maher

Corporate & Legal Affairs

Motovox/APT

8844 Hillcrest Road

Kansas City, Missouri 64138

tel: 816-767-8783

fax: 816-767-0605

cell: 816-665-0486

 

 

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  • 1 month later...

Just recieved an update earlier.

 

Hello ,

We have been performing durability testing and finalizations on the 38mm Cast Carburetors. These are expected to be completely done and shipping by the end of October. The 36mm Cast SmartCarb production will follow the 38mm's completion.

 

Below is an update from Corey:

"During last week’s testing and evaluation the cast 38mm performed very well with observable HP/torque gains; and when installed on a YZ250 produced a very distinct sound. Nice. The latest billets with updated float bowl baffling performed great too with mostly flawless testing. What we are looking for is bogging in sudden g-outs and long jumps. In the case of the SC it can be caused by one of two things. Fuel being sloshed up the nozzle by float displacement or momentary loss of venting caused by a tip over valve. Admittedly this is mostly for the Endurocross/MX folks and a large percentage of riders will simply not put there bike in these conditions where it becomes an issue. However the factories are very keen to this as it has been an ongoing issue for years with float bowl carburetors and we are certainly no exception. It really is a major safety issue, as one can attest if having found yourself in a situation where you need a handful of throttle and it’s not there and you wind up on your head, face plant or worse. Liability is what keeps me awake at night and other than the fear of really hurting someone or burning down the pits at some national event I sleep pretty well. So you get my point.

 

The fuel sloshing is easily fixed by a plate baffle with a series of small holes to dampen the oscillations and provide a tranquil area for fuel pickup. The tip over valve of course poses unique problems of its own and the reason this type of circuit hasn’t been used before. We debated leaving it out but we had to be substantially better than our competition in altitude/temp correction and fuel economy. We’re glad we stuck with it. The internal tip over valves has required us to make several changes to the depth of the valve passageway and the surface finish of the ball seat. Last week’s testing was inconclusive because we could not generate enough speed to hit the really large jumps to see if we still had an issue. So I’m sending one or two to run Red Bull Fall Classic this weekend to hopefully finish the test. Other than that your carbs are being built as we speak and all changes have been included thus far. We are just making sure we have no other issues or machining corrections to make before we release and then have a big problem not easy to correct. Nobody wants this done more than I do so I appreciate everyone’s patience. Corey"

 

 

 

I apologize that this has been a long process, but we are so very close now!

Best Regards,

Liz Harvey

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it takes an hour to assemble carbs..  maybe 2 if your slow and drink mt dew's

 

the whole reason these work with the altitude issue is the same reason they load up on jumps and through whoops..  dealt with these similar issues on kehiens way back in the MX days. the fix was to add better venting to allow the fuel that enter'd the vent tube to drain off.  its very apparent whats happening if you look at a kehien air stryker type carb. the air stryker has this design "update" cast into them  the extra vents are incorporated in the carb design.   with the APT float bowl being pressurized but having NO overflow and no venting  its going to cause problems.  its a shame and i really hope they can get it figured out.  

 

have hope worst thing is the design will never be able to have an external drain on the bowl. no baffle or one way valve is going to fix that. which sucks. hydrolock is going to be a huge problem i think. ( im not saying for sure  just my humble no cash no million dollar company backing me up real world observations,  and we all know how accurate those are  phhhh)

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