what type of electric fuel pump?
#1
hi guys im new to Rotarys and this board , i have just got my first rx7 with a stock 12a with etractors and exhaust . what i wanted to ask is my electric fuel pump if not working well its cuting in and out so i want to buy a aftermarket one,but i dont no what type or size to get coz i dont no how much psi it needs can any1 help thanks[attachment=37769:attachment]
#2
First off, welcome to the board. If your looking for 1st gen info and a board, try www.mazspeed.com Those guys know their stuff!
next, check your wiring. The Fuel pump wire has a tendancy to die and does exactly what your talking about. Try hooking up one to a different battery if you have time... also, to make sure, does it struggle with your blinkers on? probably wiring
If I'm wrong and you've wasted a day crawling around under your car, try summit racing. www.summitracing.com
the stock fuel pump pushes about 20gph at 3psi if I remember correctly...
If you're getting a different carb/intake some time in the near future, you may want to upgrade to about 60-70 gph @ 6-8 PSI and a regulator. But if you push too much pressure through the stock carb, you'll have it pissing out the top, so make sure you get the regulator!
next, check your wiring. The Fuel pump wire has a tendancy to die and does exactly what your talking about. Try hooking up one to a different battery if you have time... also, to make sure, does it struggle with your blinkers on? probably wiring
If I'm wrong and you've wasted a day crawling around under your car, try summit racing. www.summitracing.com
the stock fuel pump pushes about 20gph at 3psi if I remember correctly...
If you're getting a different carb/intake some time in the near future, you may want to upgrade to about 60-70 gph @ 6-8 PSI and a regulator. But if you push too much pressure through the stock carb, you'll have it pissing out the top, so make sure you get the regulator!
#3
Here you go man. I just did a full writeup on this over at RX7club.com. The link includes part numbers, pricing, and installation instructions/suggestions. Hope this helps.
http://www.rx7club.com//showthread.php?t=529605
http://www.rx7club.com//showthread.php?t=529605
#4
I'm running a Carter fuel pump with a Holley regulator. You can get both pieces from Summit for under $100.
The Carter is friggin' huge, but tough. I didn't take the time to re-route everything when I installed it and it hangs down too far. On the highway I hit a 3" diameter log with the end of the pump. It bent the bracket 90 degrees and tore a little hole in the floorboard. The pump still runs fine and everything hammered out okay. I have another generic pump that I'm going to replace it with when I swap everything into my GSL-SE.
http://store.summitracing.com/partdetail.a...15&autoview=sku
I recommend the Holley FPR because it's dirt cheap - under $25. Also, if you buy a different carb setup you can just buy a rebuild kit and swap out the springs to run the higher fuel pressure range (4 1/2 - 9psi).
http://store.summitracing.com/partdetail.a...15&autoview=sku
The Carter is friggin' huge, but tough. I didn't take the time to re-route everything when I installed it and it hangs down too far. On the highway I hit a 3" diameter log with the end of the pump. It bent the bracket 90 degrees and tore a little hole in the floorboard. The pump still runs fine and everything hammered out okay. I have another generic pump that I'm going to replace it with when I swap everything into my GSL-SE.
http://store.summitracing.com/partdetail.a...15&autoview=sku
I recommend the Holley FPR because it's dirt cheap - under $25. Also, if you buy a different carb setup you can just buy a rebuild kit and swap out the springs to run the higher fuel pressure range (4 1/2 - 9psi).
http://store.summitracing.com/partdetail.a...15&autoview=sku
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