tire size

i was wondering whats the preffered tire size on our cars.i think they come with 185 65 r14 (for the si). should i go to 60's or 70's. take into concederation that i am putting a b18a. i would assume that 60's tend to spin too much, so i dunno if i should stick with the original size or go to 70's.

original size = 185/60-14 (70s are too tall)

the car came with 185 65 14.

well, you have a civic si... but somebody could have just put 185/65-14s on it. You could always go to tirerack.com and type in your make and model and it'll tell you the stock size or you could check your owner's manual if you have one...

it is written in the glove box with a sticker from the factory.

yet another difference between the 90-91 crx and civic...

yup