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AGS MOTORSPORT
R & M UHLHORN PTY LTD
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This Section
consists of a Photo Gallery & description of
HISTORIC &
VINTAGE KART ENGINES
THESE ENGINES are
for DISPLAY ONLY & are not for SALE
BM ATLAS ENGINES
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BM ATLAS 15TT , TT ported engine BORE 50.7mm , STROKE
48.64mm
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COMER MIK 545 long stroke BORE 47.00mm STROKE 54.20mm
, 100mm conrod.
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The DAP T50 piston port engine was produced to combat the kart
engine market being
taken over by the Yamaha KT100S engine . Unfortunately the DAP
engine was unable
to over throw the KT100S engine roller coaster , which would
have to be the most successfull
kart engine ever manufactured.
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The DAP T72 engine is TT ported long stroke engine ,
BORE 48.00mm , STROKE 54.00mm
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DAP T77 TT PORT ROTARY VALVE ENGINE
This DAP T77 engine has been highly modified in the cylinder
ports and passages . The front boost port
has been increased in size and two extra smaller finger ports
added. These ports has increased the actual
size of the boost port by a considerable amount . Also there has
been two extra smaller ports one each side
of the exhaust port. The side transfer ports have been increased
in size and the crankcase ports have been
also increased in size to accommodate the cylinder port size
increase and the number of ports. These
modifications have taken a lot of time and is an example of the
extent the tuners when to in the early days.
  
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DAP T91 REED ENGINE WAS THE SECOND REED ENGINE MANUFACTURED BY
THE DAP
COMPANY , THE FIRST BEING THE T80/T80R ENGINE. THE T80 HAD THE
REED VALVE IN
CYLINDER APOSSED TO THE T91 HAD THE MORE CONVENTIONAL REED VALVE
IN THE
CRANKCASE , WHICH THIS METHOD IS STILL USED IN MOST ENGINES
TODAY.
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KOMET K55 REED VALVE ENGINE MADE BY IAME
IAME'S FIRST REED ENGINE
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THE TG14 IS A ROTARY VALVE ENGINE .
THIS ENGINE MANUFACTURED AFTER THE FIRST ENGINE [BA13] AND
WENT THROUGH TO THE
LATES 80's AS A SS20 WITH MANEY COSMETIC AND MECHANICAL CHANGES,
BUT THE BASIC
CONCEPT STAYED THE SAME. THE EARLY ENGINE USED THE POINTS
IGNITION AND BOWL
TYPE CARBURETOR. BORE 48.00mm.
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PARILLA TT22 , ROTARY VALVE ENGINE.
IN 1974 THE TT22 WON THE CIK/FIA WORLD CHAMPIONSHIP IN JUNIORS
[FELICE ROVELLI.
THE TT22 IS VERY SIMILAR TO THE SS20 AND MANEY PARTS INTERCHANGE
.THE
MAIN DIFFERENCE THE THE BOOST PORT IS FEED FROM PASSAGE FROM
THE
CRANKCASE AND NOT THROUGH A WINDOW IN THE PISTON AS THE SS20
IS.
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This PCR REED was introduced into Australia in 1983 .
The BORE 50.00mm & STROKE 50.00mm , 100cc cap city
,classed as a short stroke engine.The reed block
is positioned across the top of the crankcase & enters the
engine at the base of the cylinder where the front
protruding legs of the liner is cut off to allow a better intake
flow into the crankcase. As most PCR engine this
has a 98mm conrod.
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ROTAX ROTARY VALVE ENGINE 1983 . BORE 50.00mm STROKE 50.00mm
This engine was the first 100cc kart engine Rotax manufactured
back in 1983
Rotax had been manufacturing larger capacity engines for road
race karts . in
1983 they decided to enter the sprint kart world and has been
very successful
ever since.
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ROTAX 1989 ROTARY VALVE ENGINE BORE 50.05mm STROKE 50.00mm
The ROTAX rotary engines from the first kart 100cc rotary
in 1983 through to the 1989 engine. The most obvious change was
the shape of the cylinder head & fining . The rest of the
engine did not change much. Around the exhaust port /cylinder
fins
fins were bridged and supported . The coil was mounted to the
side and the crankcase opened up between the fins.
 
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TKM REED VALVE ENGINE IS A VERY STRONG REED ENGINE.
USE'S A CONVENTIONAL STYLE REED BLOCK , 104mm LENGTH CONROD 18mm
BIG END PIN WITH 14mm PISTON PIN.
THE CRANKSHAFT COUNTER WEIGHTS ARE EXTENSIVELY MACHINED CHAMFER
OF THE INSIDE ON THE CRANK HALVES FOR BETTER INDUCTION PAST THE
CRANKSHAFT.
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YAMAHA MOTOR COMPANY DECIDED TO ENTER INTO THE INTERNATIONAL
ARENA WITH
THE KT100AX ROTARY VALVE 100CC ENGINE , THE ENGINE DESIGN WAS
VERY EUROPEAN
BUT THE ELECTRICS WAS A JAPANESE CDI UNIT WHICH WORKED VERY
WELL.
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