Kstout24

iTrader: (1)

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.

funkjaw

iTrader: (3)

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.

Kstout24

iTrader: (1)

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

funkjaw

iTrader: (3)

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

wizzurp

iTrader: (6)

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

Kstout24

iTrader: (1)

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