I've hit the limits of my 3 450s. Going cable, looking for gas tank advice There may be a better place to post this but I figure this is where the most cable drive fuel pump cars are. I think I'm making the switch to cable driven fuel pump and I was wondering if anyone has sumped there f body tank to feed the pump. Or put a bulkhead in or something? |
MagnaFuel ProTuner 750 Series In-Line Fuel Pumps MP-4303This will get you the fuel you need. |
I would have to run 2 of them |
I was looking at some of the belt driven pumps on the english/ETS cars and they were all custom fuel cells |
Have you thought about using the new Aeromotive brushless 5gpm electric pump? They claim 2600fwhp on gas. That means approx 1820fwhp/1700ish rwhp on e85. https://www.aeromotiveinc.com/brushless/ |
I looked into it, at 70psi it drops off a ton and would only flow a few percent more then my current setup |
Pump - 16 + GPM https://www.dragzine.com/features/pr...ck-fuel-pumps/ Tank https://www.aeromotiveinc.com/gen2_stealth_tanks/?utm_source=dragzine&utm_medium=banner&utm_campaig n=gen2-tanks Never did figure why with all of the Camaro's (1998-2002) that modify the stock fuel system why an aftermarket company that mfg tens of thousands of stamped metal gas tanks didn't modify the 1998 metal tank with a provision so the bottom half of the tank is sumped and still fit the 1999-2002 model years. Sure would be cheaper than custom built aluminum tanks and $1200 + dual in tank systems. |
You can install a sump kit on a 98 steel tank, install one of those diesel sump kits (Can’t remember who, but someone on here has done it.) Or get a Nate’s /behind bars tank, (best way to do it ) Get in touch with bob at AEI for the drive set up. |
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What was the limit of 3 450s? |
Originally Posted by gjohnsonws6
(Post 20006270)
You can install a sump kit on a 98 steel tank, install one of those diesel sump kits (Can’t remember who, but someone on here has done it.) Or get a Nate’s /behind bars tank, (best way to do it ) Get in touch with bob at AEI for the drive set up. https://puredieselpower.com/products...tank-sump.html |
Originally Posted by blackdak318
(Post 20006302)
What was the limit of 3 450s? |
Originally Posted by gametech
(Post 20006685)
A better question is how much money is an engine worth that requires 3 450s worth of fuel. Then realize that you have at minimum triple the possible points of failure in your fuel system. The reality is exponentially higher potential for failure. |
Originally Posted by blackdak318
(Post 20007451)
It's fine to just say you don't know personally. If you do, post up the results. I understand what you're saying, but a ton of people have used multiple staged pumps for a very long time without issue. A large single pump can fail just as easily as anything else with the same result so although I understand what you're saying, I do not really agree. Everything takes maintenance and keeping a close eye on. To be fair, the large single pump failing is a lot safer than one of the three Walbro's failing. Cutting off the whole fuel system is better for the motor than part of it. |
Also curious as to the max of the triple 450s. I have multiple fuel fail safes in place if there is a drop in fuel pressure so I'm not too concerned with argument. |
My plastic tank has a -12 bulkhead fitting in it going to an aeromotive 11182 pump that comes on with boost, and dual in-tank DW400s that run the majority of the time. I am making 1550rwhp currently without issues. I don't have room for a cable drive setup the way my turbo kit is laid out. Holley is setup with fuel pressure safeties so even if a pump fails its going to start to shut the boost down/car so nothing gets hurt. The limit of three 450s is usually 1200-1300rwhp depending on the base pressure. |
Originally Posted by transam69230
(Post 20007707)
The limit of three 450s is usually 1200-1300rwhp depending on the base pressure. |
Originally Posted by baggins
(Post 20007626)
Also curious as to the max of the triple 450s. I have multiple fuel fail safes in place if there is a drop in fuel pressure so I'm not too concerned with argument. Most guys topping them out at 1200 typically have fueling issues. Pressure sensors in the merge fittings for 3 pumps often show pressures of ~90 PSI, meaning the flow from the 3 pumps is greatly reduced. Evidence should be abundantly clear when some are making 700-750 on a single pump, but are running out on 3 pumps at 1200. |
You're not going to find a streetable single pump option unless you do cable driven. Or just go the route of the 5 gpm brushless and sump your tank run that in boost and run a single or dual intake walbro 525. |
I was good till 28psi, I made 1462 to the tire at 25psi so 28 was probably low 1500s. After that pressure starts dropping off every pass. The Holley does compensate and I've even had a pump burn out before and the cl comp saved my motor. I'm on borrowed time before I ruin a very nice motor over not having an adequate fuel supply |
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