i have a 1991 mazda rx-7. im new to the whole rotary concept. i need help replacing my water pump, if anyone can give me a walk through step my step that would be awsome. another question i have is when i punch the throttle my car bogs down. i think its because i dont have enough back pressure due to my big exhaust system. if this is the problem how can i counter act this? and if anyone has any other ideas of what it is then please let me know.

 

Highly doubt the bogging is due to insufficient back pressure... The less back pressure the better realistically. Check your exhaust and make sure it isn't clogged due to a melted catalytic converter or muffler or something like that.

Also, here is a good thread on replacing the water pump.

 

i did a cat delete so it cant be that, could it be clogged or bad fuel injectors?

 

Another thing to check would be your fuel filter, TPS, as well as injectors.

 

Might check to see that someone hasn't removed the secondary throttle plates too.

 

ok ill look into all those things, thanks for the help fellas