need help

[Dupies86]

hey i just bought a 91 honda crx si and i have had it for about 2 months but i have no idea what to do to it i want to get a new engine for it cause this one has like 120k miles on it i just dont know what kind of engine to get for it so if you guys/girls could help me out i would like that a whole alot
Thanks

[civickiller]

search, lots on it. do a b series swap, search that too

[Dupies86]

i was talking to one of my friends about it and i told him i might get a b16a but he told me to get a b20 would that fit or what

[civickiller]

all b series fit into the 4th gen with the exception of the b20a that came in the 88-91 preludes or whatever motors came in that. but you need a few things to swap that b series motor into you crx, so search and youll find what you need

[crxcrvtec]

Dont get a b20a its one of the worst honda motors ever made.Cant rev it that high safely.Does make huge torque with that 95mm stroke.Its nice in traffic but sucks on the freeway.Ive owned almost every honda motor made.Doing a b20a would be the same as any b series motor swap with the exception of the ecu pinout and cable tranny.So I say go with the b16a.

[Dupies86]

so what kind of motor would u recommand for my 91 crx si

[civickiller]

you can get whatever b series you like. b16a, b17a, b18a,b,c, b20bz

it all depends on you, like what are you going to use the car for, like drag racing, or for just daily driving

[Dupies86]

im going to use this car for drag racing
y does it matter

[civickiller]

are you going all motor or turbo how fast do you want to go ?

these questions matter because say you only want a 14sec drag racing car, then i would suggest a b16. but if you want a 10sec drag car, i would suggest getting a b18c because it has more displacement so therefore you would get more hp. same if you going all motor.

[Dupies86]

im going turbo it sounds cooler and i want a 10 sec car and what kind of turbo would i want for the motor

[civickiller]

i would say b18c1, gsr motor. bore it to 83mm, stroke it with 89mm (ls) crank, and just build the rest of the motor accordingly.

if you want a good turbo kit, check out www.full-race.com they have turbo kits and can meet your needs

there is a b18c, 2 liter motor over here runnin 22psi, and went 10.7, but hes turning up the boost so he can run more consistent 10s

[Dupies86]

ok i also got a probably with the radiator it keeps overheating but if i run the a/c it doesnt over heat its like the fans arent kicking on when the engine gets hot u know what im saying

[civickiller]

start your car up and wait till it gets to operating temperature and see if you fan comes on, the other fan comes on with the ac

[Dupies86]

i have done that and it doesnt turn on so is a electronic thing or what

[civickiller]

probably the fan relay went out, its located behind the passenger light