The Kart Engine Thread

[cpr]

Nice website Brian. What can you tell me about the kart under the Quincy 2011 event photos with what looks like an MC-91 with dual carbs fed through the flywheel housing? Never seen a setup like that. Some sort of pull-through carb supercharger?

 

[Brian Thomas]

Mac custom built rotary valve . Uses a modified circular saw blade for the rotary valve

 

[leeha]

Some very nice stuff Brian.
Thanks for sharing. I'm very impressed
with all the Power Products motors.

 

[Brian Thomas]

View attachment 283992 1961 Simplex with dual AH 58 Power Products

View attachment 283989 1961 Fox with dual AH58 supers

View attachment 283990 The wife and I on the grid at Delmar Iowa 2012

 

[Bingo]

Kart engines

Great thread here. Getting sidetracked by all the vintage karts!...Remember walking into Troy Ruttman's go-kart shop on Ford Rd., in Dearborn about 1961-2 and thinking I'm just in heaven...Couldn't afford to go racing but he was a good guy and it was all karts all the time. Those Macs were king at the time. Glad there's some still around. So glad this thread was brought up to date. Like to see more. Loved karts then but that was big $$$ to a 16 yr old. Still nice to see them. Gonna have to spend some time at the local kart track this summer...when I'm not looking for firewood, of course. Thanks to all for the great nostalgia.

 

[ozflea]

When one angry Mac is not enough



McBob

 

[Bill G]

View attachment 283990 The wife and I on the grid at Delmar Iowa 2012

Brian,

Will you be at Quincy this year? I planned on Delmar last year but missed it being early

 

[Brian Thomas]

We will be there . We pit by the track exit.

 

[cpr]

Mac custom built rotary valve . Uses a modified circular saw blade for the rotary valve

That was my second thought. Feeds through the bottom then? Not much flywheel effect, but I bet it's a rev-gaining monster. Neat bit of fabrication. Battery is there because there's no magneto?

 

[Brian Thomas]

That was my second thought. Feeds through the bottom then? Not much flywheel effect, but I bet it's a rev-gaining monster. Neat bit of fabrication. Battery is there because there's no magneto?

Correct no mag

 

[67L36Driver]

Worth looking at? McCulloch Go Kart/WTT

 

[moody]

Worth looking at? McCulloch Go Kart/WTT

Yes Mac made some damn fine karts!

 

[Brian Thomas]

Worth looking at? McCulloch Go Kart/WTT

I don't think its a Mac kart but still worth checking out . Pix would help on ID.

 

[barneyrb]

I don't think its a Mac kart but still worth checking out . Pix would help on ID.

Your site is just way cool. I wish karts had been popular around here years ago. They never caught on in Louisiana, mostly dirt cars.......

 

[Brian Thomas]

We took our karts to the Billetproof car show.

all Power Products motors




I was doing some mock up work on the blue Fox kart so we took it with .

Dual AH82 .030 over dual carb alcohol motors



We are getting pretty close to the final assembly on the kart and motors .

Brian

 

[leeha]

Brian, Thoses motors are sick. Must
be a far cry from a saw motor. I like
the removable head design. Any idea
on HP ratings.




Lee

 

[Brian Thomas]

I don't know what they would put out . I saw a good set of 82s will give a pair of 101s a run .
They would pull the 101s out of the corners

You cant tell I have a thing for Power Products , can you ?

 

[heimannm]

I am getting started on my 101AA saw project, looks like I will need a piston and rings. Options are:

84473 & 66047 +0.020
84474 & 66045 +0.030
84476 & 69469 +0.050

Any help or suggestions will be most appreciated.

Mark

 

[Brian Thomas]

I am getting started on my 101AA saw project, looks like I will need a piston and rings. Options are:

84473 & 66047 +0.020
84474 & 66045 +0.030
84476 & 69469 +0.050

Any help or suggestions will be most appreciated.

Mark

Look up Terry Ives industries . He might be able to help you out.