What is exactly DTS-i ,DTS-Si and DTS-Fi? Is it a real technological break through or just some techno-jargon used for marketing? Lets fist look how a 4 stroke engine works. DIGITAL TWIN SPARK ignition engine has two Spark plugs located at opposite ends of the combustion chamber and hence fast and efficient combustion is obtained. The benefits of this efficient combustion process can be felt in terms of better fuel efficiency and lower emissions. DTS-i Engine can be further tuned to deliver exhilarating performance as in DTS-FI or exceptional mileage like in DTS-SI as claimed by Bajaj. The use of twin spark plugs has been around for decades mostly in the engine of Alfa Romeo, Honda and on large capacity Ducati engine etc. Bajaj however have patented the technology for small capacity engines. DTS-Si Engine - Like DTS-i the engine has 2 spark plugs, but, instead of conventionally positioned straight ports, the offset positioning of the ports generate high swirl and turbulence of the air fuel mixture in the combustion chamber. This results in highly efficient combustion that further results in exceptional mileage. Like the mother DTS-i technology, the DTS-Si technology is a patented technology developed by Bajaj Auto R&D. This technology is used by Bajaj in its recently launched 125 cc Bajaj XCD. Recently, Bajaj Auto was in the news for accusing TVS Motors, long-standing rivals of patent infringement on the DTSi technology. TVS countered by threatening to sue Bajaj Auto for libel. ....   read more »