is there any difference between these pumps? can i use stock b20 oil pump on my b20vtec?

 

B16A oil pump 53qpm
B17A oil pump 54qpm
B18C oil pump 75qpm
B18B oil pump 53qpm

My guess the b20 oil pump will flow as much as the b18b as it's a non-vtec engine and doesn't need the extra pressure to flow for the vtec engagement

 

if its OBD2 its the exact same. if its obd1 get the type r.

 

i think i have 1997 JDM B20B engine. is it OBD1 or OBD2? yesterday i opened two oil pumps - one is my b20 oil pump and the other one is unknown oil pump which my friend used on his b20vtec and he says in either has itr gears or toda gers. so actually i compared my b20 gears and these gears and they look alomost the same. is there any visible difference between itr toda and b20 gears?

 

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by b18bEKcoupe &raquo;</TD></TR><TR><TD CLASS="quote">if its OBD2 its the exact same. if its obd1 get the type r.</TD></TR></TABLE>

Just like b18bEKcoupe said get a OBD-2 oil pump. They are all the same b16 or b18 vtec.