mauroclemente

Hi friends ... glad to stay here. Maybe u can help me.
I've a RX8 2010 MT / 78.000 km (48750 miles) and i use it for racing competition.

Some upgrades that i have:

- HKS Hypermax III Coils
- Front Stop Disks DBA 5500
- HP Plus BrakePads
- Racing Beat Intake
- Racing Beat aluminium stop lines
- BHR Ignition System
- NGK plugs
- HKS Exhaust System
- Exhaust Header Jasma
- Fiber Carbon rear Spoiler
- Fiber Carbon hood
- Light weight trunk
- Royal Purple 10w40 XPR
- Idemitsu Premix

Buuut! I've a problem at the moment of accelerate ... with my team are sure the problem is in the fuelp pump or tank.

We´re thinking in change the fuel tank and pump ... but we dont know how to do that ... the season starts on March and i need a solution asap!

Can anybody help me?

NotAPreppie

Why would you need to replace both the pump and the tank?

mauroclemente

Yes, sure.
On the trackdays ... the rx8 behaves very well .. but in a part of the circuit (straight up) at around 7500 rpm 3rd gear the problem begin ... it's like a loss-power. I need to up the gear to a 4th and the problem disappear. This problem just appears in this part of the circuit ... so i talked with a friend (owner of several RX8) and he told me the problem is in the fuel pump and tank ... for the movement of the gasoline.

mauroclemente

because i want to install an external tank (30L) low weight into the car.

9krpmrx8

iTrader: (46)

The problem could be due to quite a few things, guessing or having other people guess will get you no where, the problem needs to be diagnosed.

If it's a race car I assume you have a fuel pressure gauge?

gwilliams6

https://www.rx8club.com/series-i-tec...re-rx8-252936/

One of many threads on the subject. Yes you need to check your fuel pressure to know if you have a problem with fuel delivery.

mauroclemente

No i don't. It's not a 100% race car yet ... i working on it every day. In my country this sport is very very expensive. No one .. but NO ONE piece/part/replacement are available ... so is very difficult grow up in this sport here.

I'm going to get a fuel pressure gauge ... and i'm going to introduce to you.

Thanks u very much !

9krpmrx8

iTrader: (46)

You can download the factory service manual from Normalexception.net - Home and follow the troubleshooting guide in it.

swoope

iTrader: (5)

https://www.rx8club.com/series-i-maj...orners-254079/

might want to read this thread. not that i have ever had an issue with a fuel pump..

beers

dannobre

iTrader: (3)

It is NOT common to have fuel starvation in a straight line with the way the stock fuel system is. you may just have a bad pump

It is very common on sticky tires to have fuel starvation in corners...especially longer sustained left turns with less than 1/4 tank of fuel

If your race series allows a fuel cell then it will be a good fix.....but if you are restricted to the stock fuel tank than there are things you will need to do . There are numerous posts on this issue...read some of them and then come back and ask questions and we will do our best to help you.

Some have had good results going to a S2 fuel pump assembly especially in an NA car

gwilliams6

Ditto dannobre, my fuel pump issue was solved by putting a Series 2 pump into my NA Series 1.

https://www.rx8club.com/series-i-do-...ries-i-230326/