LSvtec Oil and Water Pump Question?

I have an ls vtec set up on my 89 EF si, I want to install a better oil and water pump. I m thinking of going with GSR. BUt my question is are all years gsr oil, water pump the same? I think my ls Block is from 93-95 acura. which year gsr water oil pump can I use for my motor?. also I have a 2000 si head. do I have to change the timing belt? and Last question is should I use b16, gsr type r pumps? I heard gsr and type r have the same part #. Thanks

Answer:

just change both to type r pumps that way there are no problems

you need the GSR/Type-R water pump. This is one of the major causes of LS/VTEC failure. The GSR/Type-R has 22 teeth while the LS/GS has 19 teeth. The extra teeth cause it to spin faster pushing more water through the system. Any time you change something related that uses the timing belt, I ALWAYS install a new timing belt, and tensioner. That way there are no worries later.