I have a 1991 Nissan Sentra Se-r and I am doing a engine swap and wondering what engine should i go with-the bluburd, the gti-r or the s13. I have seen the S13 sr20det in the se-r and have seen it do high 12's low 13's bone stock. The question is, what type of problems will occur wth the swap, will i have problems with the power to the wheels and breaking the axles or anything with engine problems, will i need aftermarket stuff right away to get it running. Just asking this if anyone has done this swap and can give me information on the problems you ran into so i can cover up my little problems befoe i start and have my swap go smooth fast and reliable. pleae help me out on this swap, any information is well apprecated. One more question, since my car is fwd, if I do he s13 RWD, will it be a lot of trouble converting it to RWD or will it be kind of easy but kind of hard. I have my friend who can pretty much do anything that is going to help me but just doing my research on problems.