autotec

Wow, a member since 09 and this is my first post.

A good friend of mine asked me to look at his Civic and get it running again after it sat for a couple of years. It was partially disassembled when it got dropped off in my garage so I'm just working on a giant broken puzzle at this time. Looking at the giant mess, I'm trying to figure out where to start.

A shop was installing a fuel cell under the hood, but the work was never finished. All fuel lines are cut and missing, fuel filter missing and a larger second pump mounted on the firewall. I figure I'm going to start there. I think the only option is going to be fabricating new lines from the tank to the rail. The small tank has already been removed.

Car ran in the 10's and put down over 700hp, so the fuel system has to be able to support that. It has a Walbro pump in the main tank that feeds a larger Bosch pump. Is this the common way of doing it on a setup like this? I'm planning on doing braided lines for the pressure and return using the correct fittings, probably mounting the larger pump closer to the tank and away from engine heat. What has everyone else done?

I know this car is a mess, that's why I got involved. I just want to make it right.

hondaracing84

iTrader: (1)

Is the car going to be a street car?
There are people who do fuel setups like that. Can support 650-700 regardless of injectors on gas. Limiting factor is the pumps.
Id say, if you want to reduce stress on the pumps, go with a single bigger pump that can flow enough, without stress, for the power he's shooting for. Or dual Bosch 044s can support 750-800 on gas w/id1000 @ 100psi fuel pressure, or w/id2000 it can support 950+.
My setups was an FCS 5 gallon cell feeding a magnafuel pro-tuner 750. -8an feed lines w/id2000 injectors and -6an return. I made 800hp with that setup and it could have made more.
But mainly, Id get away from the walbro feeding the inline bosch pump. It works, but at that power, you're pushing what the pumps can do, and if one fails, you end up in a lean condition which could mean a lost motor.

autotec

Great advice, thank you.

After the bugs are worked out and the fuel system and electrical issues are sorted out, I think he plans on selling it. It was a street car, but when the cage got put in it was taken off the street. I like the idea of a fuel cell instead of the tank, not sure how the owner would feel about it though. It would sure make it easier though. I'll look to see what Bosch pump I have with the car.

Thanks again.

hondaracing84

iTrader: (1)

Well keep in mind the FCS fuel cell is mounted in the stock location and uses the factory filler tube. If you plan to run ss braided lines, this tank is already sump'd and ready to go. So no cutting the stock tank and welding a sump or messing with dual hangers (which the cost of dual hangers would be close to the same as an FCS cell)
If its a concern of using the fuel gauge, these tanks have an option to use the stock fuel level sender. And they make the tanks from 3 gallon up to 9 gallon. So I hope that will help to alleviate any concerns the owner may have about a cell.
I loved my FCS cell and will go with one again if I need to.

autotec

I'm guessing this is a 044 pump. All of the correct adapters and new fuel line has been ordered to plumb this correctly.

Going to wait on the new fuel cell until it runs again, and that I can't blame him for.

hondaracing84

iTrader: (1)

Yep, Im pretty sure that is an 044.
So Im assuming you're going to set it up the way it was before, walbro 255 in tank and the 044 inline? Because a single 044 would not be enough to reach that power level again.

autotec

For right now, yes. Boost is going to be turned down from 40 to 30. Personally, I think the 720hp dyno pull was a "glory pull" anyway. In order to keep it at that number safely, it's going to need more than he wants to put into it right now. We will look at the numbers closely when it gets tuned again and go from there. All the fittings and lines should be here today and we will start building some proper lines. If he decides to up the HP, at least the lines will be in place and can be reused.

Thanks, Justin

hondaracing84

iTrader: (1)

Sounds good to me. But keep in mind the risky thing here is using 2 pumps. If one fails, the other will still be pumping and just cause a lean condition which will cost a motor. Id recommend a stand alone pump in the future.