Hi All, I have a '91 Civic Si Hatchback. It has a 1.5 in it. Didn't the Si come with the 1.6?

 

"What engine do I have an does it have Vtec"

 

should have came with d16a6 i think

follow the instructions on that link he gave you and look for the engine code

are you sure it's an Si? Possibly the previous owner slapped an Si emblem on it? lol

91 hatchback comes with d15b1 or d15b2unless it's an Si i think

 

well since the cat is out of the bag

D16A6

* Found in:
o 1988-1991 Honda Civic Si, CRX Si, Civic Wagon RT4WD
o 1990-1991 Honda Civic EX Sedan
o 1988-1995 Honda Civic Shuttle RT4WD (UK/Europe/Asia/AU/NZ)
o 1989-1996 Rover 216/416 GSi (UK/Europe)
+ Displacement : 1590 cm³
+ Bore and Stroke : 75 mm X 90 mm
+ Compression : 9.1:1
+ Power : 115 hp (86 kW) @ 5600 rpm & 95 ft·lbf @ 3,800 rpm, redline 6500 rpm (USA)
# Note: 1988 engines were 105 hp (78 kW), MY89-91 hp was increased to 108
+ Valvetrain : SOHC
+ Fuel Control : OBD-0 four-point PGM-FI
+ Head Code : PM3
+ Piston Code : PM6

 

It has a sunroof, isn't that unique to Si models? I know a previous owner rebuilt the engine, I didn't think that it had been swapped though.

 

yeah its an si i have a 91 si it has a sun roof but the si did come with the d16a6. he could of had problems with the a6 and witch it out to a d15