Bore 70 mm, stroke 58 mm, Nikasil coated aluminium cylinder: Exhaust 185°, overflow 130°, intake diaphragm controlled, exhaust port 27,5°.
The TS1 is the legend among Lambretta tuning cylinders, developed by Terry Shepperd, manufactured in the Italian foundry GILARDONI.
The TS1 has some constructional advantages, for example the heat dissipation of the used aluminium is much better than that of cast iron cylinders.
Due to the used diaphragm control a high peak performance can be reached with the TS1 without the known disadvantages of the slot control. This tends to blow a lot of the just sucked in air/petrol mixture out of the carburettor at the long intake control angle necessary for high rpm and therefore of course works very uneconomically.
This way the TS1 can push out of the speed cellar without lacking peak power compared to the original slotted controlled engine.
The TS1 with matching exhaust and carburettor for 13-17kW is good from the box. Each further meaningful modification rewards the TS1 with again increased power, so that clearly over 30 HP are also not rare.
In the deposited diagram you see the setup of three different TS1 road engines. The blue curve is from a plugged TS1 225 cc with 58er shaft, 35 Mikuni and the JL 3 exhaust. Nice to see how well the TS1 is already plug & play and without a big rip for very fast progress. The green and the red curve are the SCK winning engines from the gsf Clubman/Ancillotti test bench bet. One time with a significant lowered torque without compromise and the other time with the TS1 Racetour tuning by MB Developments, both victories went to Cologne.
Do you have questions about the diagram or the cylinder: lambretta@scooter-center.com . We also send you tips & diagrams of TS1 engines with well over 30 hp.
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