- Thu Feb 24, 2011 6:20 pm
#240738
I am puzzled by this also.
I always thought the SiR was the name for the 4th gen JDM civic/crx Vtecs (b16a)
Then when they brought out the 5th gen civic (EG6) they called the Vtec b16a model the SiR II.
There doesn't seem to be any official information on this.
Some people say the the earlyer JDM EG6's were SiR's and then they brought out the SiRII. But mine is a Feb 1992 and i know of someone who has a 1991 and both are asummed to be SiRII's.
Unless mine is actualy only an SiR.
Oh and for the record all JDM EG6's have the 2nd gen b16a 170ps engine in them. I have both engine's in bits in my shed, a First gen b16a out of an old CRX SiR and my original B16a out of my 1992 EG6 supposed SiR. They are deffinatly different.
The second gen 170ps B16a has slighly higher domed pistons and aparenlty a few extra deg duration on the intake cam. But im yet to confirm the cam difference.