Location: Baton Rouge, Louisiana
Posts: 3,047
My VIN: 16510 and carbureted
Club(s): (GCD) (SEDOC) (DCUK)
Location: Baton Rouge, Louisiana
Posts: 3,047
My VIN: 16510 and carbureted
Club(s): (GCD) (SEDOC) (DCUK)
For what it's worth I went ahead and wired a ground connection directly to the fuel pump from my battery.
Let's see if I survive the 10 hour drive to Sean's house without any fuel related failures.
A guy named Lou called me the other day from NY. I suspect he is the same guy. Anyway, Lou told me he is waiting for Bill to test and ship the manifold and carb.
Once again I ask the same question. How many people have successfully performed homebrew efi conversions and documented it on this forum?
Bill has documented nearly every one of his conversions on this and the old forum.
Off the top of my head?
Myself (car is garaged due to lack of fascias, not a problem with the fuel system), Owen, Daryl, Jim. More on the way.
And no, it doesn't matter. Even if nobody had EVER finished an EFI conversion or documented it to your satisfaction, people's fuel pumps dying is an issue. I don't know of any of the EFI guys who've gone through new fuel pumps that fast (for that matter K-Jet users don't usually have this big of a problem with them either), and our applications are higher pressure and more strenuous on the pump. And I didn't have to modify my fuel pump or wiring. (In fairness, Christine did lose two pumps on K-Jet for no apparent reason, but that was when I first bought the car and she's been trouble free since. Those were also from that bad run of pumps from some third-rate manufacturer a few years ago.)
Now that I've answered your question, I'm - as respectfully as possible - going to ask you a question, Steve: What does the number of EFI conversions have to do with the question of whether or not carb conversion fuel pumps are dying too quickly?
And I'll add another question: Are we to understand that interest in this topic from anyone who doesn't have a carburetor on their car is unwelcome? Your response to a straightforward question came off as unnecessarily hostile and antagonistic.
Last edited by AdmiralSenn; 10-19-2011 at 09:13 PM.
Aka Adam S, aka Adam Wright
1981 DMC-12 #3416, mothballed in preparation for motor swap
2006 Volvo S60R
Location: Baton Rouge, Louisiana
Posts: 3,047
My VIN: 16510 and carbureted
Club(s): (GCD) (SEDOC) (DCUK)
The EFI guys like to criticize our conversions for the few rare problems that have occurred.
Bill has contributed towards at least a dozen successful conversions. I'm just trying to find out how many successful homebrew EFI conversions have done by other shade tree mechanics. So far no one has answered.
If I were to ask this question of the EFI thread it would just get deleted.
For the record I believe my fuel pump issue to be electrical. We will find out if my ground trick does any good after I make my long drive this weekend.
Electrical problems would affect any fuel pump includin EFI and CIS. We don't know if Farrar's problem is electrical or not but judging from his current relay compartment problems it wouldn't surprise me.
I don't think anyone has been criticizing you. And I answered you, so... yeah.
And no, it wouldn't get deleted unless it looked like things were getting ugly. Here you have someone politely asking a question, stating his intent straight up that he is NOT disparaging anyone's car or modifications, and now apparently it's "us vs. them" and a race to see how many people convert their cars?
Am I missing something?
Aka Adam S, aka Adam Wright
1981 DMC-12 #3416, mothballed in preparation for motor swap
2006 Volvo S60R
Location: Baton Rouge, Louisiana
Posts: 3,047
My VIN: 16510 and carbureted
Club(s): (GCD) (SEDOC) (DCUK)
No hard feelings here. I didn't realize there was more than one successful EFI homebrew conversion.
The reason I asked how many is simple. I figured, how can an EFI enthusiast criticize a few fuel pump issues (one solved and two yet to be solved) when they can't even get more than one or two EFI conversions to work correctly.
Perhaps my two fuel pump failures occurred "for no apparent reason". Maybe it isn't An electrical problem but I'm certainly going to do some testing.
I heard Kjet pumps fail for no apparent reason as well.
Location: Fort Lauderdale
Posts: 4,740
My VIN: 02613
Club(s): (DCF)
Agreed -- except I'd say "problem" rather than "issue." For what it's worth, it's not just low-pressure pumps which have experienced failure. Remember the thread about measurement of low pump voltage? I can't remember whose it was, but that was on a stock car which had a high fuel pump failure rate (compared to other stock cars) and I believe the problem was cured by improving the connection to ground. Insufficient voltage will cause your pump to heat and die prematurely. I think users of any system would be well-served to make sure they have a good solid ground from their pump (or inertia switch if still so equipped) to make sure their pumps last as long as possible.
Farrar
3.0L, automatic, carbureted