wick3dr00st3r

here is 3 port sport specs

Specifications:
Maximum power: 2.60 hp
RPM: 31,000 rpm
Practical RPM Range: 6,000 - 37,000 rpm
Bore: 16.26mm
Stroke: 16.80mm
Crankshaft: 14mm SG
Glow Plug Type: Standard
Exhaust Type: Rear

here is 3 port race specs


Maximum Power 2.6hp
R.P.M 37.000rpm
Practical Range 6.000/40.000rpm
Bore/Stroke 16.26mm/16.80mm
Ports 3+2
Crankshaft 14mm SG
Carburetor 8mm
Glow Plug Type Turbo
Exhaust Type Rear

you can put a turbo button on the sport engine but it wont make it like the race 3 port but will be close and runs just as good

i ran one with turbo button and the go black carb instead of stock sport and it ran awesome. for what you are wanting to stay reasonable on price you will like it . if you dont mind paying alittle more for a motor the race 3 port will be a rocket and is very powerful thnx will g