E85 pump options, keeping it simple
10-06-13, 09:42 AM
#27
Racing Rotary Since 1983
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"does the software tell you the alcohol content of the fuel?"
yes, fifth from the bottom....75%
the computer is capable of interpolating between a gas and E85 map.
hc
yes, fifth from the bottom....75%
the computer is capable of interpolating between a gas and E85 map.
hc
10-06-13, 12:59 PM
#30
there's only one pump i would trust behind a kenne belle BAP.
if i could count all the pumps that died when you run them up near their maximum volume level i would run out of fingers and toes.
simplification also should be emphasized, generally the most reliably built cars don't have 10 thousand "safety" devices. i call them "failure points".
if i could count all the pumps that died when you run them up near their maximum volume level i would run out of fingers and toes.
simplification also should be emphasized, generally the most reliably built cars don't have 10 thousand "safety" devices. i call them "failure points".
Last edited by RotaryEvolution; 10-06-13 at 01:09 PM.
10-06-13, 01:45 PM
#31
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i have run my BAP since 2004. it has never been run more than +20% and i have never had a failed pump at that gain level. you could be quite correct at higher boost levels.
there's lots more flow available at 16.0 V w no penalty.
howard
there's lots more flow available at 16.0 V w no penalty.
howard
10-07-13, 10:07 AM
#32
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I agree with howard - nothing is wrong with ramping up voltage on a single pump - the only problems can occur if it stays on at max voltage and high load for extended periods of time (10mins or more) that is what can damage the pump over time
10-08-13, 12:11 PM
#35
the Walbro pumps tend to take best to the higher voltage, you can literally run the BAP to max and those pumps will take the abuse.
i've seen firsthand numerous other makes of pump die out at less voltage even at 16v to the pump. the denso pumps tend to start squealing when you push them higher than that, the sound is the brushes cooking themselves to death.
i've seen firsthand numerous other makes of pump die out at less voltage even at 16v to the pump. the denso pumps tend to start squealing when you push them higher than that, the sound is the brushes cooking themselves to death.
Last edited by RotaryEvolution; 10-08-13 at 12:14 PM.
10-08-13, 12:30 PM
#36
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Simple to me would be dual pumps and done.
I don't understand the appeal of the BAP it is IMO a band-aid for too small of a pump.
Personally I would use dual 044 in the CJ hangar for what you are doing and call it a day. Run some heavy gauge wire and quality relays for power along with parallel fuel lines and have a good proven reliable setup.
There are plenty of people running the dual fuel pump setups on many different engine and platform across the automotive industry and do not have a problem with fuel density. So stop worrying about it.
I don't understand the appeal of the BAP it is IMO a band-aid for too small of a pump.
Personally I would use dual 044 in the CJ hangar for what you are doing and call it a day. Run some heavy gauge wire and quality relays for power along with parallel fuel lines and have a good proven reliable setup.
There are plenty of people running the dual fuel pump setups on many different engine and platform across the automotive industry and do not have a problem with fuel density. So stop worrying about it.
or like my setup.... one big fuel pump, 4 injectors & leave it like that....
10-08-13, 01:04 PM
#38
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Lol are they really that bad in the tank? I have an aeromotive pump in my Honda with -12 inlet and it vibrates the whole car.
I saw where having the tank full with dual pumps might heat up the fuel. Any truth to this? Would a swirl pot be a cure for this problem?
I saw where having the tank full with dual pumps might heat up the fuel. Any truth to this? Would a swirl pot be a cure for this problem?
10-09-13, 01:30 PM
#39
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i had the aeromotive on a couple cars, its just so big/bulky/loud.. total overkill. The 044 staged pumps running off a surge tank is arguably the best, but still pretty complex overall. I like howard's setup, the walbro 416 E85 pump with a BAP or jms1000 to amplify voltage
10-09-13, 04:20 PM
#41
"hey buy our 1000hp capable fuel pump" <- yeah if i want to blow my engine tomorrow ill slap that bitch in there. How about no.......
10-15-13, 07:49 AM
#47
Racing Rotary Since 1983
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Walbro E85 pump. PN 9000267 combined w a Kenne Bell Boost A Pump set at plus 20% Volt gain. (gain only in boost)
13.3 V X 1.2 = 16 volts.
steady fuel pressure at 8900 RPM around 575 SAE hp. also fairly rich tune due to the need to be in 5th gear for 20 seconds at full throttle.
we may lean it out a bit once we make a real run on a real track, or it may lean out on its own.
i am also running 630 CC of water meth thru the elbow to lower IAT.
howard
13.3 V X 1.2 = 16 volts.
steady fuel pressure at 8900 RPM around 575 SAE hp. also fairly rich tune due to the need to be in 5th gear for 20 seconds at full throttle.
we may lean it out a bit once we make a real run on a real track, or it may lean out on its own.
i am also running 630 CC of water meth thru the elbow to lower IAT.
howard
Last edited by Howard Coleman; 10-15-13 at 07:51 AM.
10-15-13, 01:38 PM
#48
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*without the BAP you are limited to around 550hp on this pump
10-16-13, 03:44 PM
#49
if i were to make a suggestion, it would be to ditch the boost cooler and run straight water. of course that would require re tuning and straight water narrows the tuning "sweet spot" as you have to run leaner to burn cleaner. loosely translated to ignition fouling/breakup earlier, but i hate redoing work so i try to start with the proper setup so something to consider for next time.
Last edited by RotaryEvolution; 10-16-13 at 03:47 PM.
10-17-13, 07:50 AM
#50
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Hey all this has got to be one of the best e85 threads on the forum. I would like your input on choosing a fuel pump for my setup. I see many of you prefer the dual pump set ups however I'd like to stick with a single pump. I have the choice of running a sump tank or none and need a pump to support in the range of 6 to 700hp. I'm kinda leaning towards the magnafuel pump 4703 or the fuelabs 41402. What would your guys do? Or if you think I'm crazy and just think both pumps are over killed let me know before I make an expensive mistake.
Sorry for the double post about the same topic guys.
Sorry for the double post about the same topic guys.