Honda Car Forum

What's the difference between a D15B honda engine and a B16a ????

d15b is the SI thats a SOHCB16a is the SIR from japan thats a DOHC

The other guy is correct about the b15 being an old si motor but a b16a is a new si motor that is dohc the difference is day and night. The b16a is not from japan it is and american si motor

the other 2guys above are correct. if you have to choose, just take the b16a. it has the V-tec system & far more powerfull than d15b

D15 is a single cam 1.5l engine, B16a is a 1.6 dual cam. The difference between the JP and usdm motors is the engine codes. Usdm Motor ends with a number like Si B16A2 and the Jdm is a B16A, Usdm Type R B18C5 and Jdm is B18C.

the d15 is a 1.5 litre engine that's probably doesn't have a vtec head. the d15 has about 80 hp or so maybe 90. it's also has a single cam. the b16a is a more modified engine that comes in the acura integeras and some civics(namely the 99-00 si model). the b16 is a 1.6 litre engine, has 2 cams(dohc), and is a vtec head. this engine produces around 160 hp considerably more than the d15. if you were thinking about buying an engine from honda, i would buy the d16z6. this(i feel) is honda's best engine though it's not the fastest I feel that it's the most reliable. it produces 130 horsepower and it's a single overhead cam.

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