Palm's Bike

Parsko · Jun 18, 2004

Hey Palm,

I was just in your gallery. I like the pics. First time I have had a chance to see a gutted newer style motor. Do they use O-rings to seal the jug??? It looks like there are 3 of them. Also, the newer timing chains are powered off the clutch basket, versus the crank??? I haven't thought about it much, but how does this system work better? Would it not add more weight?

Would you care to discuss your EFI system?

I am assuming EFI stands for Electronic Fuel Injection.

I am interested in the details, and possible more pictures.

-Parsko

Cody · Jun 19, 2004

New motors

Yes the new motor from Husaberg are years ahead of other companys the two cases with no cylinder or base gasket helps to cool the hole motor
the sleave with the 3 O-rings is now the cylinder this motor becomes very easy to service. This set up gives a better transfer or heat, a base gasket stops this transfer of heat that is why Husabergs ren so cool if you have a over heating problem you need to richen up your fuel mixture.

Palm · Jun 23, 2004

Hey Parsko
The EFI system is a prototyp system i made to my self.
It is a simpel system running direkt conected to the alternatorn
It was develop it for 8-12 years ago .
The best part it's the tunning possibolti. But a don't control the timming for spark . I working on a newer control box including spark control.
If anyone have a petrolpump driven mechanical from the motor I is intrested.

Palm

Parsko · Jun 24, 2004

Are you asking if anyone knows of a fuel pump run off the motor mechanically? Have to say I have never heard of that.

I have been doing a bit of research into fuel pumps. One major conclusion is that if one were to design a fuel pump, the biggest concern would be that it does not ignite the fuel (may seem obvious). But, a mechanically driven fuel pump might do that, if not designed properly.

Bosch has a fuel pump, part number 61316. This pump is the smallest (I have found) that they make. The Cannondales (only injected motor of this style I am aware of) use a Walbro GSL414 fuel pump. But, that is a factor of 10 too large in regards to flow rate. (A 350 needs about 11 LPH where the Walbro delivers 90 LPH at the lowest rate).

The industry needs a fuel pump that is small and delivers much less fuel (hence less weight and current draw).

Palm, are you using a microcontroller? If so, which one? What are your inputs? What injector are you using? Regulator? TPS?

I have a little more info on pumps if you are interested...

Parsko · Jun 24, 2004

http://forums.cannondaler.com/viewtopic ... highlight=

This is the topic I started on their forum... If interested...

Xmen · Jun 26, 2004

You could look at the fuel pump that Gas Gas is using on their 450.

dave186 · Jun 26, 2004

i was checking out one of the ATK cannondales and saw the fuel pump on that thing, it looked identical to the frame mounted high pressure pump that was on my 1989 F-150!

LINEAWEAVER · Jun 26, 2004

Palm said:
If anyone have a petrolpump driven mechanical from the motor I is intrested.
Palm

Hi Palm,
Kinsler (formerly Hilborn) is a good source regarding mechanical fuel pumps suitable for FI. http://www.kinsler.com/i_constantflow.htm
Hope this helps you.

Dale

LINEAWEAVER · Jun 26, 2004

Parsko said:
One major conclusion is that if one were to design a fuel pump, the biggest concern would be that it does not ignite the fuel (may seem obvious). But, a mechanically driven fuel pump might do that, if not designed properly.

Hi Luke,
How do you figure?
Simple petrol requires Oxygen to support combustion.

FYI:
Top fuel engines using a monopropellant fuel (ie Nitrometahne) do not auto combust as a result of mechanical injection .

Your opinion please.

Respectfully,
Dale

Parsko · Jun 28, 2004

Hey Dale,

You are correct. I seem to remember the term "isolated" being used in the conversation. My buddy's point (he designs hydraulic pumps for America's cup boats, so it's a bit different) was that the pump should be designed such that it does not ignite the fuel whilst it pumps. That... would be bad! I still don't know enough about fuel pump design to be able to make any legitimate conclusions. But, my point is that there doesn't seem to exist (still didn't follow that link you supplied yet...) a fuel pump that is the size we would need it.

Dave,

" was checking out one of the ATK cannondales and saw the fuel pump on that thing, it looked identical to the frame mounted high pressure pump that was on my 1989 F-150!"

From what I have found, you are absolutely correct. They (Cannondale) didn't want, nor could have probably afforded, to re-invent the wheel.

On other notes: GREAT ride in Oxford, CT yesterday. Beautiful weather! LOTS of WOT action. Awesome hillclimb (only put my foot down twice!!!!)

Palm · Jun 28, 2004

Hey Parsko
The old 8 bit micro I use is Philips 80C552 .
I have tested some electrical pumps and Bosch is eays to find and funktion best.
The power out put from the alternator (2x70W) is the only power
i got and the pump take 60-70W and they pump weight ca 1kg.
The pump wheel inside a pump is very small aprox 50x10mm.

Palm

Parsko · Jun 29, 2004

Palm,

What inputs do you have into the CPU?

-Parsko

Palm · Jul 1, 2004

Parsko
RPM,TPS,VOLT,AIRtemp,enginetemp,airpressure.
Have a 3D map for RPM,TPS and the rest is compensation

Palm

Parsko · Jul 1, 2004

Nice!!!!

Have you had issues with your CPU not being fast enough at higher RPM's?

Perhaps any other issues I can't think of right now?

(leaving to go riding with my boss in aboot 6 minutes!!!!!!!)

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