Originally posted by wideawake@Feb 14 2005, 00:56
It has been a long time since I updated this thread. Well, the recent addition to my car is worth mentioning. It is the installation of a fuel surge tank.
12 February 2004 (Saturday) - 8.00pm
Jacked my car body. Took another jack and jacked the rear suspension arm. Put a car stand on the rear axle and removed all the other jacks. Removed the rear seats (finally found out how to do it).
13 Februady 2004 (Sunday) - 10.00am
Removed the plug from the fuel tank. Drained the fuel tank to 2 x 10litre containers and one pail. The fuel was still pouring out, had to stop draining because no more container left. The reason I tried to empty the tank is too see how much fuel was in there, as the car will always jerk on fuel starvation when the fuel tank is half ful. From what that came out, I had around 25 litres in the tank.
11.00am
Removed the fuel pipes from the old fuel lines. Positioned the surge tank in the rear boot, just behind the rear seat. Looked for holes in the chassis that I can use to route the pipes. The hole under the rear seat is used to route the fuel coming in the surge tank, and a hole in the boot is used to route the pipe going out of the tank.
Drilled 2 holes to hold the surge tank platform. I wanted to drill the other two, but a metal piece under the car was in the way.
2.00pm
Break for lunch.
3.00pm
I realised that I was short of a few parts. Went to the nearby tesco and giant to source for it. The local hardware shop was still closed for CNY. Bought a rubber welcome mat that I then used to put in between the surge tank platform and the car. Some kind of noise reduction it seems.
5.00pm
Continued with securing all the screws and hose clamps. I also routed my brand new spanking 8-gauge wire through the firewall to the rear. I wired the whole thing using an automotive relay. The power from the old pump will trigger power to the surge tank fuel pump.
9.00pm
Finished wiring the whole thing. When I put back the negative terminal of the battery, the new pump was running instantaneously, even when the key is not in. Traced the problem to grounding. Is seems that the platform was a good grounding base. Therefore, had to put some rubber in between for insulation. After that, found out that the pump would not start at all. Traced it again to a faulty relay. Lucky I had a spare relay. Put the ignition into start, and both pumps were turning. It worked!!! What a great feeling it was. The feeling is unimaginable. (let's not get too carried away)
10.00pm
Poured in all the fuel back in to the car. After that, started the car. Boy does it run great. Now for a test drive.
10.30pm
Since my wife wanted some 100plus, I volunteered to go to 7-11 to get it lah.
The test drive
Upon accellerating, the car went smooth. First gear, second gear, third gear, then I ran out of road. Normally, at 2nd gear, I'll get a hard jerk and my body will be thrown forward because the engine retards the ignition. This point of the drive has now vanished. Turning right has always resulted in a series of jerks. That's because the fuel will be thrown to the left of the car, and far from the fuel exit lines that is on the right hand side. With the surge tank, I can now throw the car anywhere I want and the power will still be there. No more jerking.
Fuel delivery is now more constant and the flow is better thanks to my spanking new Bosch 910 fuel pump. To date, this is the best modification I have made.
The noise
I have not replaced my rear seats, so I can hear everything that's happening behind. At slow speeds, the pump will sound like it producing bubbles, which is very noisy. At higher RPMs, the pump sounds smoother. Any ideas on how to reduce the noise in this department?
I'll take the car to work tomorrow. I'll whack it out in Kesas and see how it behaves.
I'll also try to update some pictures in this site. Forgot to take pics during the process, but I'll take some pics of the result when I can see some daylight. Night pictures is not my specialty. One day well spent.
Any suggestions or questions welcomed. Thanks.