I'm curiouse, for those of you who have done the B18C swap, what kind of fuel mileage have you been getting?

Do you keep your stock 5 speed or is a different one used? If you use a different one, is the final drive ratio different (like the Si that turns more rpm's on the highway) or is it the same ratio as our tranny's?

Also, will your I/H/E change over to the new engine or is all new needed?

 

i asked the same question and this is what saccions answered for me


some are interchangeable, but some will give you problems, like the manifold on a gsr motor sits lower and most intakes wont fit, it has to be a gsr intake. and most SRI will fit a d or b series. header will be different though. except the gsr, most 92+ civics use the 99-00 si intake just fine with a swap

 

Ok, so then it sounds like most everything would have to be changed, thanks man.

So now about the final drive ratios and tranny compatibility? And fuel mileage?