Several of the better-known FI shops/suppliers offer "high end" fuel systems, ranging in price from about $1100 to $5300.
I assume that most or all of these will do the job, at least to "moderate" (up to 1000 rwhp) power levels. My question is, what are they like to live with? Are they reliable? Do they leak? Are they noisy? Do they run all the time, or just under boost? Are there any problems with driveability? Any adverse effect on fuel economy? Any reason not to put one of these on a daily driver?
I think most or all of these require dropping the LH fuel tank if the install is to be performed properly. I would really prefer not poking holes in the tank. Any idea what the labor charges for a typical installation are, including dropping the tank? Just roughly.
Do you have a specific fuel setup in mind? How much power are you looking to make? Your fuel system can be set up a few different ways to handle more power. Aftermarket fuel setups are just as reliable as stock if setup properly.
- they will draw current
- they will make an annoying whine
- return style systems with big external pumps will heat the fuel to the point where you could literaly burn ur hand if you touch the fuel line
- they fail, especially those boost switch operated ones
I think the best option is the twin intake pumps, which will make 1000rwhp with BAP, and no annoying pump noise either.
- they will draw current
- they will make an annoying whine
- return style systems with big external pumps will heat the fuel to the point where you could literaly burn ur hand if you touch the fuel line
- they fail, especially those boost switch operated ones
I think the best option is the twin intake pumps, which will make 1000rwhp with BAP, and no annoying pump noise either.
Good feedback, thank you. This is the sort of thing I was looking for (or worrying about).
Good feedback, thank you. This is the sort of thing I was looking for (or worrying about).
problem is, everyone will tell you how quite their fuel systems are - while tolerable noise levels are subjective (just like how every vendor says their cam drives like stock) - and that they had no failures, where in real those boost switches can fail very easily, and usually do so from heat (speaking from personal experience).
You could wire up an RPM window switch and let the secondary fuel pump kick in at say 3500rpms, that would be reliable.
again, the twin intank systems seem to be the best solution.
I run a twin intake pump setup (2)walbros. These are mounted inside the plastic can (low point) with no sloshing the fuel to worry about. I always run a 1/2 tank or more fuel on my weekend driver. On the startup is when you hear the pumps come on and thats it, no noise at all. This setup powers my 900hp street driver with no problems..
I run a twin intake pump setup (2)walbros. These are mounted inside the plastic can (low point) with no sloshing the fuel to worry about. I always run a 1/2 tank or more fuel on my weekend driver. On the startup is when you hear the pumps come on and thats it, no noise at all. This setup powers my 900hp street driver with no problems..
The best setup IMHO.
agreed, this is the best set-up, and you can always add a BAP to even further the output of the pumps.
I run a twin intake pump setup (2)walbros. These are mounted inside the plastic can (low point) with no sloshing the fuel to worry about. I always run a 1/2 tank or more fuel on my weekend driver. On the startup is when you hear the pumps come on and thats it, no noise at all. This setup powers my 900hp street driver with no problems..
The best setup IMHO.
Is this a return-style system?
Does anyone sell this as a drop-in, or do you have to buy bits and pieces?
- they will draw current
- they will make an annoying whine
- return style systems with big external pumps will heat the fuel to the point where you could literaly burn ur hand if you touch the fuel line
- they fail, especially those boost switch operated ones
I think the best option is the twin intake pumps, which will make 1000rwhp with BAP, and no annoying pump noise either.
I have a problem with absolutes. I have a return style system with a magnafuel 4303 that doesn't do what you said it does as do many others. Just as a switch from RPM or Boost isn't any more reliable than the other. I think they're both pretty reliable.
Anyway, I would suggest talking to the guys that run these systems in a lot of cars. You'll find you have a lot options to meet your goals.
For the C5 stuff, RSI (sponsor) has a nice assembly. Great vendor as well...
It is a nice setup, I checked it out. But I am going to sit down with my CNC shop and attempt create something similar but try to stuff a third pump in without going to the other tank.
After looking some more at (what little) is published about these systems, and talking quite a bit with my mechanic, I am leaning towards having him build a surge tank system. Anybody else have one?
Our system is boost controlled with a Hobbs switch. When you hit 5 psi, the pump comes on. When your at 5 psi you are going to hear the motor and the exhaust over the pump. When you are at idle and cruising around town, the external pump will not be on.
Corvette Store
Living with a "high end" fuel system
