I have an a1 Im putting in my 89 sedan and a b1 for parts since the a1 is just a longblock with nothing else. Im wondering what fuel injection is better. the one from the 93 b18a1 or from the 94 b18b1?

 

I think intake manifold wise youll want to run the b1 with the throttle body. But as far as injectors go youll want to run the a1 injectors since they are obd0

 

theyre both obd1. Im going obd1 ne way.

 

basically the manifold for the b1 has all the lines still hooked up cause I just pulled the motor today. the a1 has nothing and I dont want to go through trying to find where everything hooks up


B18a1


B18b1

 

The injectors have the same flow rates it doesnt matter what injectors you use. The b1 intake manifold is a better flowing manifold. The main differences with b18 non vtec are the cams power wise. The 90-91 have smaller cams then the 92 and up b18.

 

alright then I'll use the b1 intake. the engines only have 2 hp difference. the a1 Im using only has 74000 miles on it and is clean as could be inside and out