rowtareh

Wondering if there is a difference between the FD and FC walbro fuel pumps? I can get FD fuel pump from somebody for ten bucks, and I would like to swap it out since I have not changed my stock one.



Anybody? Would the connections be the same, or would I run the risk of having the walbro pumping too much fuel to the block, and not having enough air to compensate for it, causing me to run rich?



Car is a 88 N/A. Thanks

CGeek2k

I dont know anything about the connections but I wouldnt worry about going rich. The cars run pretty rich as it is. The danger is running lean.

rowtareh

I was told running lean was a good thing? Was I lied to?



Anyone else think the connections would not work?

Fd3BOOST

Dont worry about the fuel pump Justin. I doubt that is your problem.

Running lean in a turbo charged rotary is bad news. But your N/A so that wouldn't apply to you. BTW for those reading I told him he could have my old Walbro if he wanted it, he is only asking if he can use it. He is not under the assumption that he needs to upgrade his pump.

rowtareh

Would be no reason to upgrade the pump, I am not running anything modded that I need to deliver more fuel than the stock pump. Just seeing if it would fit, since I have not changed mine out. And it is probably needing to be changed in the future.



Need to get the thermostat changed and get it started back up again.

racerxtreme7

i could prob go for a new fuel pump

mazdaspeed7

A walbro will make a n/a run like ****. It flows more than the fpr can handle, and therefore raises the fuel pressure across the board, causing the injectors to flow more. N/a's already run too rich, you will only make your car run worse.

rowtareh

Thanks mazdaspeed7. Just thought it would be worth a shot. Now Dave can sell his fuel pump, or just keep it. Thanks also Dave. I tried.

j9fd3s

there is a slight difference in the install kit, but i didnt know that when i put mine in and its fine