I am new to this. I would like to build a McCULLOCH cart engine I have a 1-41 and would like to find somebody that would help me with some info on where to get the carb and cluch set up. Is this a good engine to use? I have read that a vetech manifold are good to use and a tillotsons carb?
thank
McCULLOCH engie help
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Jeremy Healy
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Jacob Jay
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Re: McCULLOCH engie help
Hi Jeremy-
As a kart engine, the 1-41 saw engine is not desirable. The saw engines from that era are designed to make their power at a low RPM as opposed to the kart engines. It would be a lot of work to convert that engine over and in the end you'd still be left with a marginal 80cc engine. You could look around for a 9* series engine and make a good runner with that.
As a kart engine, the 1-41 saw engine is not desirable. The saw engines from that era are designed to make their power at a low RPM as opposed to the kart engines. It would be a lot of work to convert that engine over and in the end you'd still be left with a marginal 80cc engine. You could look around for a 9* series engine and make a good runner with that.
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david a luciani
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Re: McCULLOCH engie help
Jacob,
i'd have to dispute that thought.
properly built that little mc 1-41 will make about 5 hp which is a pretty standard kart motor size.
and converting mcculloch saws over to kart motors is simple.
you just remove all the saw parts and add the correct manifold and stuffer.
some of the engines will require ports to be added and all can be hopped up using the tricks of the day.
biggest problem is usually the stepped crank and Scott kneisel can make an extension for a decent price.
with a 1-41 you'd have a mc5 motor spec which while not a big time racer certainly will run fine in the historic class.
as far as the saws from that era i use the correct saws from that era and built exact copy mc10 clones a desirable and pretty fast little motor.
sorry for the rant but it seems to me many vintage guys are opting for a mc9 series "big" motor on the older karts that never had them.
the typical excuse is there aren't any decent correct motors or they're to rare to risk so i got me a mc91 or mc101.
with a little thought and research these old saws are easy kart conversions.
they will give you a motor that would have been found on the older karts.
of course if you're just about being the winner you wouldn't want one.
a bunch of the east coast guys are having a blast building seriously slow karts.
they are all about the same in performance and nobody is building cheater motors.
at Avon there was a whole field of trash talking 25 mph karters that had a "BIG" race.
i seriously doubt anybody cared or knows who won that "race" but they all are still smiling about it.
dave
.
i'd have to dispute that thought.
properly built that little mc 1-41 will make about 5 hp which is a pretty standard kart motor size.
and converting mcculloch saws over to kart motors is simple.
you just remove all the saw parts and add the correct manifold and stuffer.
some of the engines will require ports to be added and all can be hopped up using the tricks of the day.
biggest problem is usually the stepped crank and Scott kneisel can make an extension for a decent price.
with a 1-41 you'd have a mc5 motor spec which while not a big time racer certainly will run fine in the historic class.
as far as the saws from that era i use the correct saws from that era and built exact copy mc10 clones a desirable and pretty fast little motor.
sorry for the rant but it seems to me many vintage guys are opting for a mc9 series "big" motor on the older karts that never had them.
the typical excuse is there aren't any decent correct motors or they're to rare to risk so i got me a mc91 or mc101.
with a little thought and research these old saws are easy kart conversions.
they will give you a motor that would have been found on the older karts.
of course if you're just about being the winner you wouldn't want one.
a bunch of the east coast guys are having a blast building seriously slow karts.
they are all about the same in performance and nobody is building cheater motors.
at Avon there was a whole field of trash talking 25 mph karters that had a "BIG" race.
i seriously doubt anybody cared or knows who won that "race" but they all are still smiling about it.
dave
.
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Jeff Campbell
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Re: McCULLOCH engie help
The 1-41 saw motor is very similar to the 1-51 motor that I built into a look a-like MC5 kart motor in the videos below. The 1-41 should have a detachable head, which allows you to easily bore/hone it, and to easily put in a longer stroke crank. I put a MC6 crank in this motor ... but I do think it is possible to put a standard MC91 series 1 5/8" stroke crank in there, if you find the right piston, or leave the top piston ring off (the piston is going to pop out of the top of the cylinder a LOT!). This motor I built ended up at just over 90cc, and with the boost ports and slightly modified exhaust ports, it does really scream. I have run it at several events, anyone that has seen it run will tell you, it is FAST ...
CLICK HERE to watch in Large HD Video mode (requires high speed Internet connection)
CLICK HERE to watch in Large HD Video mode (requires high speed Internet connection)
Here is helmet cam video of me driving this motor at TBO last year....
CLICK HERE to watch in Large HD Video mode (requires high speed Internet connection)
I mostly run dual engine karts at events, my dual rear Chaparral with MC101's or one of my C-Open sidewinder karts with dual BM-130 motors ... but I still love taking laps on this Fox kart with the 1-51 saw motor, going "slow" can be just as much fun or even funner at the older tighter tracks that were originally designed for karts of the early 60's erea. Never think that vintage karting can only be fun if there is more of a motor on the kart.
Jeff
Here is helmet cam video of me driving this motor at TBO last year....
I mostly run dual engine karts at events, my dual rear Chaparral with MC101's or one of my C-Open sidewinder karts with dual BM-130 motors ... but I still love taking laps on this Fox kart with the 1-51 saw motor, going "slow" can be just as much fun or even funner at the older tighter tracks that were originally designed for karts of the early 60's erea. Never think that vintage karting can only be fun if there is more of a motor on the kart.
Jeff
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Jeremy Healy
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Re: McCULLOCH engie help
Jeff what carb did you use on that motor? I would like to get into these carts.I would like to find a kart that has two engine mounts on it. But Im having trouble to find a kart and then the next thing a place to race it. There is a track here where I live but they race honda and briggs. I have not stoped there to ask to see if they race the mcculloch or west bends.