When you click on links to various merchants on this site and make a purchase, this can result in this site earning a commission. Affiliate programs and affiliations include, but are not limited to, the eBay Partner Network.
do you have a diagram of the hoses for the tank an what they do? I added a surge tank, came off the driver side hoses, to my tank, now when it turns on fuel runs out of the top somewhere?
To run a surge tank you will need to do more than plumb it into the fuel line. The RX8 has a returnless type setup. The fuel line to the fuel rail is regulated in the tank on the fuel pump assembly. It uses the extra blowout fuel to power a venturi type suction that pulls fuel from the passenger side of the tank.
Why are you adding the surge tank? Having problems with pressure dropouts in corners?
that is a very good reply, i putting a 20 b in there and running a surge tank it leaks fuel, the stock pump i set it for 42 but when it goes into boost i need around 60. I might try another fuel pump in line an see if that will help. I regulate the pressure giong back at 40, then it switchs to 60 when i go into boost
You need a return system and therefore a regulator at the fuel rail. And for sure a lot more pump. After about 400hp you will run out of fuel with the stock setup even with careful driving. Anything twisty or fast and you won't even make it there. You need a largish surge tank and likely 2 pumps to get reliable fuel for even a low boost 3 rotor.
Remember 1 little knock from low fuel pressure will cost you a rotor at least. Overkill is better for fuel 😁
03-01-2006, 01:33 PM
