fuel pumps 2013
Thread Starter
Joined: Oct 2001
Posts: 6,279
Likes: 728
From: Florence, Alabama
fuel pumps 2013
the 13B rotary needs 30% more air than a piston engine to make equivalent power.
that means it needs 30% (+-) more fuel.
in order to make 600 rotary rwhp we need as much fuel as a 780 rwhp piston motor.
500 rotary requires similar air and fuel as a 650 piston setup.
in addition, we make our hp using forced induction, so the fuel pump must overcome the boost pressure working against it.
43.5 static rail pressure plus 20 psi boost means the fuel pump needs to work at 63.5 pressure.
flow drops as pressure increases.
let's take a look at fuel requirements. i am going to use 600 rotary rwhp. most of us probably won't be running that number but it is sort of a top number for dual purpose FDs and feel free to multiply it by .83 for 500 etc.
fuel certainly should be an overkill calculation.
let's assume:
we want to run 43.5 psi rail pressure at zero boost.
we want to run no more than 85% duty cycle.
we lose 13% deliverability to lag.
we want to run 30 psi max boost.
we want to make 600 SAE rwhp.
we want to be able to run down to 10.0 AFR
we want the numbers for gasoline & E85
600 rotary rwhp requires 1152 CFM
1152 CFM is 80 pounds per minute of air
at 10 AFR that is 8 pounds per minute of gasoline
8 pounds of gasoline is 1.26 gallons per minute. (GPM)
now let's figure how much E85 is needed:
1.26 GPM is 146,273 BTUs per minute to make 600 rotary rwhp at 10 AFR
E85 has 82,293 so multiply gas times 1.41 for E85
1.26 GPM X 1.41 = 1.77 GPM for 600 hp w E85 at 10 AFR
unfortunately there are lots of ways to reference flow so here they are...
GAS
1.26 GPM
4770 CC/Minute
276 Liters per Hour
E85
1.77 GPM
6726 CC/Minute
403 Liters per Hour
do keep in mind w regard to fuel injector sizing these are net of lag and 85% duty cycle.
in order to size injectors you need to multiply the above numbers by 1.35
for gas and 600 you need
4770 X 1.35 = 6440 CC/Min of stated injector capacity
for E85 and 600 you need
6726 X 1.35 = 9080 CC/Min of stated injector capacity
back to fuel pumps............
i spent some time looking at what is available currently as i am thinking i mayl run E85 at the Texas Mile in Oct for additional cooling. the run takes about 30 seconds at 600 rwhp thru 5 gears so cooling is number one.
i am needing a fuel pump that will deliver 403 liters per minute at 73.5 pressure (43.5 plus 30 psi boost)
the list narrows. and that's what this post is about.
again, keep in mind as boost rises flow decreases.
most fuel pumps have fuel flow charts.
here is the Bosch 044.
at 13 V and 5 bar 72.5 psi (the second line from the bottom) the pump flows around 240 liters per hour. the chart is from the Bosch website. if you look around the net you will find other charts, some w unrecognizable outputs. it is easy to play w the outputs, lower viscosities, higher temps etc. i will buy Bosch numbers anytime.
using my subjective requirements (able to do 10 AFR, 85% duty cycle, 13% lag, 13 V) the 044 is good for 522 rw rotary hp.
a couple of Denso pumps....
thanks Stealth316 for the chart.
as you can see there is quite a difference between the Cosmo and Supra pumps.
the Cosmo flows 170 Liters per Hour at 73
the Supra flows 205 Liters per hour at 73.
Cosmo P/N 195130-0771
Supra P/N 195130-1020
Cosmo good for 370 rotary rwhp w my assumptions
Supra good for 446 "
i made 514 w the Supra pump and it has been in my car since 99. more on that later.
here's a spread of Walbro pumps
the often used GSS340/1 HP flows 220 at 13.5 V
the title of the post is fuel pumps 2013.
let's welcome in a couple of newer arrivals.
Aeromotive Stealth 340
the Stealth flows approx 245 L/H at 73. good for 533 rwhp. note both the Denso chart and Aeromotive are at 13.5 V while the Bosch was 13 V.
Volts make a difference
finally, let's look at the Walbro E85/gas pump P/N 9000267
gallons per hour to liters per hour.... 90 GPH is 341 liters per hour, more than enough for 600 hp on gas at 13.5 v. 507 on E85.
at 13.5 V
VOLTS ARE THE ELEPHANT IN THE ROOM
consider:
Walbro GSS340 at 60 psi output pressure:
12 V 206 L/H
13.5 V 257 L/H 12.5% INCREASE N VOLTS = 24.7% INCREASE IN FLOW
17 V 351 L/H......... 41.6% INCREASE IN VOLTS = 70% INCREASE IN FLOW
21 V 440 L/H..........75% INCREASE IN VOLTS = 114% INCREASE IN FLOW
i have run the Kenne Bell Boost A Pump since 1999 w the same Denso Supra pump at the 500 hp level on gas. no problems. i run it at plus 20%. it triggers voltage only in boost.
i Datalog fuel pressure so i KNOW what my pressure is at 8000. do you? i consider a digital logged fuel pressure essential. if you have the numbers you know your pump is performing, your filter isn't clogged and your lines are o k..
the alternative is guessing and getting to know your engine builder real well.
combine the Boost A Pump w either a Stealth or Walbro 9000267 and solve your 600 hp fuel problems in a few hours.
the alternative is either a mechanical pump, expensive to buy and install and not suited for street use... or dual pumps... they are working all the time! cycling gas back and forth at warp speed heating it. parts of gasoline boil at 90 degrees!
i would rather have the high flow (only) when i need it.
so my 600 hp on E85 is solved.
either the Stealth 340 or Walbro 9000267 (mate for gas is 9000262).
Kenne Bell has a cautionary statement re the two pumps... they say due to their higher amps that the BAP may not be as effective.
i spoke w Kenne Bell tech and they said that at the 21 volt setting both pumps under continued usage fried. they had no problems at 17 V.
if you do the numbers at 17 V you will find they really rip. way past 600 on E85 for both.
the Aeromotive Stealth 340 appears to be made by another company as AEM is marketing what seems to be a re-labled version as well as FuelInjectorConnection.
we have a simple(r) solution for our pump needs w the newer pumps and a BAP if necessary.
bottom line: my pick is Walbro.... either the 9000262 for gas or 9000267 for E85.
any additional comments welcomed.
howard
that means it needs 30% (+-) more fuel.
in order to make 600 rotary rwhp we need as much fuel as a 780 rwhp piston motor.
500 rotary requires similar air and fuel as a 650 piston setup.
in addition, we make our hp using forced induction, so the fuel pump must overcome the boost pressure working against it.
43.5 static rail pressure plus 20 psi boost means the fuel pump needs to work at 63.5 pressure.
flow drops as pressure increases.
let's take a look at fuel requirements. i am going to use 600 rotary rwhp. most of us probably won't be running that number but it is sort of a top number for dual purpose FDs and feel free to multiply it by .83 for 500 etc.
fuel certainly should be an overkill calculation.
let's assume:
we want to run 43.5 psi rail pressure at zero boost.
we want to run no more than 85% duty cycle.
we lose 13% deliverability to lag.
we want to run 30 psi max boost.
we want to make 600 SAE rwhp.
we want to be able to run down to 10.0 AFR
we want the numbers for gasoline & E85
600 rotary rwhp requires 1152 CFM
1152 CFM is 80 pounds per minute of air
at 10 AFR that is 8 pounds per minute of gasoline
8 pounds of gasoline is 1.26 gallons per minute. (GPM)
now let's figure how much E85 is needed:
1.26 GPM is 146,273 BTUs per minute to make 600 rotary rwhp at 10 AFR
E85 has 82,293 so multiply gas times 1.41 for E85
1.26 GPM X 1.41 = 1.77 GPM for 600 hp w E85 at 10 AFR
unfortunately there are lots of ways to reference flow so here they are...
GAS
1.26 GPM
4770 CC/Minute
276 Liters per Hour
E85
1.77 GPM
6726 CC/Minute
403 Liters per Hour
do keep in mind w regard to fuel injector sizing these are net of lag and 85% duty cycle.
in order to size injectors you need to multiply the above numbers by 1.35
for gas and 600 you need
4770 X 1.35 = 6440 CC/Min of stated injector capacity
for E85 and 600 you need
6726 X 1.35 = 9080 CC/Min of stated injector capacity
back to fuel pumps............
i spent some time looking at what is available currently as i am thinking i mayl run E85 at the Texas Mile in Oct for additional cooling. the run takes about 30 seconds at 600 rwhp thru 5 gears so cooling is number one.
i am needing a fuel pump that will deliver 403 liters per minute at 73.5 pressure (43.5 plus 30 psi boost)
the list narrows. and that's what this post is about.
again, keep in mind as boost rises flow decreases.
most fuel pumps have fuel flow charts.
here is the Bosch 044.
at 13 V and 5 bar 72.5 psi (the second line from the bottom) the pump flows around 240 liters per hour. the chart is from the Bosch website. if you look around the net you will find other charts, some w unrecognizable outputs. it is easy to play w the outputs, lower viscosities, higher temps etc. i will buy Bosch numbers anytime.
using my subjective requirements (able to do 10 AFR, 85% duty cycle, 13% lag, 13 V) the 044 is good for 522 rw rotary hp.
a couple of Denso pumps....
thanks Stealth316 for the chart.
as you can see there is quite a difference between the Cosmo and Supra pumps.
the Cosmo flows 170 Liters per Hour at 73
the Supra flows 205 Liters per hour at 73.
Cosmo P/N 195130-0771
Supra P/N 195130-1020
Cosmo good for 370 rotary rwhp w my assumptions
Supra good for 446 "
i made 514 w the Supra pump and it has been in my car since 99. more on that later.
here's a spread of Walbro pumps
the often used GSS340/1 HP flows 220 at 13.5 V
the title of the post is fuel pumps 2013.
let's welcome in a couple of newer arrivals.
Aeromotive Stealth 340
the Stealth flows approx 245 L/H at 73. good for 533 rwhp. note both the Denso chart and Aeromotive are at 13.5 V while the Bosch was 13 V.
Volts make a difference
finally, let's look at the Walbro E85/gas pump P/N 9000267
gallons per hour to liters per hour.... 90 GPH is 341 liters per hour, more than enough for 600 hp on gas at 13.5 v. 507 on E85.
at 13.5 V
VOLTS ARE THE ELEPHANT IN THE ROOM
consider:
Walbro GSS340 at 60 psi output pressure:
12 V 206 L/H
13.5 V 257 L/H 12.5% INCREASE N VOLTS = 24.7% INCREASE IN FLOW
17 V 351 L/H......... 41.6% INCREASE IN VOLTS = 70% INCREASE IN FLOW
21 V 440 L/H..........75% INCREASE IN VOLTS = 114% INCREASE IN FLOW
i have run the Kenne Bell Boost A Pump since 1999 w the same Denso Supra pump at the 500 hp level on gas. no problems. i run it at plus 20%. it triggers voltage only in boost.
i Datalog fuel pressure so i KNOW what my pressure is at 8000. do you? i consider a digital logged fuel pressure essential. if you have the numbers you know your pump is performing, your filter isn't clogged and your lines are o k..
the alternative is guessing and getting to know your engine builder real well.
combine the Boost A Pump w either a Stealth or Walbro 9000267 and solve your 600 hp fuel problems in a few hours.
the alternative is either a mechanical pump, expensive to buy and install and not suited for street use... or dual pumps... they are working all the time! cycling gas back and forth at warp speed heating it. parts of gasoline boil at 90 degrees!
i would rather have the high flow (only) when i need it.
so my 600 hp on E85 is solved.
either the Stealth 340 or Walbro 9000267 (mate for gas is 9000262).
Kenne Bell has a cautionary statement re the two pumps... they say due to their higher amps that the BAP may not be as effective.
i spoke w Kenne Bell tech and they said that at the 21 volt setting both pumps under continued usage fried. they had no problems at 17 V.
if you do the numbers at 17 V you will find they really rip. way past 600 on E85 for both.
the Aeromotive Stealth 340 appears to be made by another company as AEM is marketing what seems to be a re-labled version as well as FuelInjectorConnection.
we have a simple(r) solution for our pump needs w the newer pumps and a BAP if necessary.
bottom line: my pick is Walbro.... either the 9000262 for gas or 9000267 for E85.
any additional comments welcomed.
howard
Last edited by Howard Coleman; Apr 21, 2014 at 08:29 AM.
Howard, do you monitor your fuel temps? I would assume that running the fuel pump at higher voltage would also increase the amount of heat rejected. How many miles do you have on the BAP setup
IMO, dual pumps are not a bad option, you could use a boost activated switch to turn on the second pump at the desired boost level. Another solution would be to put 2 pumps in series.
One of the comments I find interesting is that parts of fuel boil at 90 degrees F. Do you know how the fuel is affected by this boiling? The reason I ask is because this mile run will be in Texas where it is typically hotter than 90 degrees ambient, and I am sure it is much hotter in the black fuel tank that is sitting a few inches above the blacktop.
Having said this, I will be running e-85 with 3 044 fuel pumps, one in tank, and 2 in the surge tank. I understand it is always advantageous to have cool fuel so I will be installing a fuel cooler into the system.
Personally if I were to use a BAP setup I would use the 044 pump, IMO they are one of the most reliable pumps on the market. I know some people who have been having problems with the aeromotive pump.
IMO, dual pumps are not a bad option, you could use a boost activated switch to turn on the second pump at the desired boost level. Another solution would be to put 2 pumps in series.
One of the comments I find interesting is that parts of fuel boil at 90 degrees F. Do you know how the fuel is affected by this boiling? The reason I ask is because this mile run will be in Texas where it is typically hotter than 90 degrees ambient, and I am sure it is much hotter in the black fuel tank that is sitting a few inches above the blacktop.
Having said this, I will be running e-85 with 3 044 fuel pumps, one in tank, and 2 in the surge tank. I understand it is always advantageous to have cool fuel so I will be installing a fuel cooler into the system.
Personally if I were to use a BAP setup I would use the 044 pump, IMO they are one of the most reliable pumps on the market. I know some people who have been having problems with the aeromotive pump.
Thread Starter
Joined: Oct 2001
Posts: 6,279
Likes: 728
From: Florence, Alabama
"do you monitor your fuel temps?"
no. i have always felt that unless i am in boost they should be relatively cool.
"I would assume that running the fuel pump at higher voltage would also increase the amount of heat rejected. How many miles do you have on the BAP setup"
yes, when the boost is on the temps will rise w output. however when the boost isn't on my fuel is cuel. i have about 60,000 miles on my BAP.
"IMO, dual pumps are not a bad option, you could use a boost activated switch to turn on the second pump at the desired boost level. Another solution would be to put 2 pumps in series."
dual pumps are certainly a better option than running one pump that doesn't quite get it done. i think the boost activated idea for the second pump would work. i would think the pumps should be in parallel w that setup.
"One of the comments I find interesting is that parts of fuel boil at 90 degrees F. Do you know how the fuel is affected by this boiling?"
of course the lighter parts of the gasoline blend boil first... if you get enough of it boiling you get vapor lock. i had that problem w my 100% meth AI before i installed a pressure regulator and return line. too much pressure caused heat and the meth turned into gas. i was feeding fuel injectors which often were closed and therefore the meth deadheaded.
"The reason I ask is because this mile run will be in Texas where it is typically hotter than 90 degrees ambient, and I am sure it is much hotter in the black fuel tank that is sitting a few inches above the blacktop."
now you have me thinking... i am going to have to build a cool box.
"Having said this, I will be running e-85 with 3 044 fuel pumps, one in tank, and 2 in the surge tank. I understand it is always advantageous to have cool fuel so I will be installing a fuel cooler into the system."
that's a whole lot of pumps... what are you going to do w all that flow?
"Personally if I were to use a BAP setup I would use the 044 pump, IMO they are one of the most reliable pumps on the market. I know some people who have been having problems with the aeromotive pump."
i do 100% share your opinion w re to the Bosch pumps and ran them in my prior AI setup. they worked fine for a couple of years pumping straight meth. as far as Aeromotive, i doubt that the outfit that makes the pump for them, AEM and FuelInjectorConnection has Bosch resources.
OTOH, you can read negative comments about Weldon mechanical pumps which are jewels. turns out often-times the complainants did not install the required filters in front of the pump.
i am running an Aeromotive Stealth 340 type pump w a BAP and will be on the dyno tomorrow so we shall see.
howard
___________
no. i have always felt that unless i am in boost they should be relatively cool.
"I would assume that running the fuel pump at higher voltage would also increase the amount of heat rejected. How many miles do you have on the BAP setup"
yes, when the boost is on the temps will rise w output. however when the boost isn't on my fuel is cuel. i have about 60,000 miles on my BAP.
"IMO, dual pumps are not a bad option, you could use a boost activated switch to turn on the second pump at the desired boost level. Another solution would be to put 2 pumps in series."
dual pumps are certainly a better option than running one pump that doesn't quite get it done. i think the boost activated idea for the second pump would work. i would think the pumps should be in parallel w that setup.
"One of the comments I find interesting is that parts of fuel boil at 90 degrees F. Do you know how the fuel is affected by this boiling?"
of course the lighter parts of the gasoline blend boil first... if you get enough of it boiling you get vapor lock. i had that problem w my 100% meth AI before i installed a pressure regulator and return line. too much pressure caused heat and the meth turned into gas. i was feeding fuel injectors which often were closed and therefore the meth deadheaded.
"The reason I ask is because this mile run will be in Texas where it is typically hotter than 90 degrees ambient, and I am sure it is much hotter in the black fuel tank that is sitting a few inches above the blacktop."
now you have me thinking... i am going to have to build a cool box.
"Having said this, I will be running e-85 with 3 044 fuel pumps, one in tank, and 2 in the surge tank. I understand it is always advantageous to have cool fuel so I will be installing a fuel cooler into the system."
that's a whole lot of pumps... what are you going to do w all that flow?
"Personally if I were to use a BAP setup I would use the 044 pump, IMO they are one of the most reliable pumps on the market. I know some people who have been having problems with the aeromotive pump."
i do 100% share your opinion w re to the Bosch pumps and ran them in my prior AI setup. they worked fine for a couple of years pumping straight meth. as far as Aeromotive, i doubt that the outfit that makes the pump for them, AEM and FuelInjectorConnection has Bosch resources.
OTOH, you can read negative comments about Weldon mechanical pumps which are jewels. turns out often-times the complainants did not install the required filters in front of the pump.
i am running an Aeromotive Stealth 340 type pump w a BAP and will be on the dyno tomorrow so we shall see.
howard
___________
Last edited by Howard Coleman; Jul 16, 2013 at 11:12 AM.
Wow, I'm glad this thread came up. I actually have an Aeromotive 340 pump and was thinking about using a boost a pump on it to solve the rest of my fuel needs for the boost and power I want to achieve.
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Full Member
Joined: Nov 2011
Posts: 86
Likes: 2
From: Perth, Australia
Hey crew,
I just spotted these pumps and wondered if anyone knew anything about them. The Prodigy pump from Fuelab.
41401 Prodigy Fuel Pump High Pressure EFI In Line - Fuelab.com
I am looking to do an E85 setup for around 400whp . Was planning the usual push pump, surge tank, dual 044 bosch setup to 4 x 2000cc injectors, but would always like to simplify things if possible and have less connections to fail etc. . I also like the idea of a single high pressure pump as if it fails you will know immediately, whereas with a dual if one fails you will keep running at lesser volume and might lean out and lunch the engine.
Any thoughts?
I just spotted these pumps and wondered if anyone knew anything about them. The Prodigy pump from Fuelab.
41401 Prodigy Fuel Pump High Pressure EFI In Line - Fuelab.com
I am looking to do an E85 setup for around 400whp . Was planning the usual push pump, surge tank, dual 044 bosch setup to 4 x 2000cc injectors, but would always like to simplify things if possible and have less connections to fail etc. . I also like the idea of a single high pressure pump as if it fails you will know immediately, whereas with a dual if one fails you will keep running at lesser volume and might lean out and lunch the engine.
Any thoughts?
Senior Member
Joined: Nov 2007
Posts: 343
Likes: 0
From: Australia
the prodigy fuel pumps are drag racing pumps full stop. they state they cant be run at full speed for more than a certain time, so not suited to circuit racing/time attack. fastest time attack fd in australia only runs 2x 044s, making 470rwkw, no fuel cooler.
fuelab did repair the failed pump when he sent it in however, to their credit.
fuelab did repair the failed pump when he sent it in however, to their credit.
wats the max a 255 walbro can handle then? idk if i should change mines .my goal is like 450+ on racegas close to 480 and 420ish on pump gas ..i got a fpr and 1680cc in a fc..
Thread Starter
Joined: Oct 2001
Posts: 6,279
Likes: 728
From: Florence, Alabama
"what's the max a 255 walbro can handle then? idk if i should change mines .my goal is like 450+ on racegas close to 480 and 420ish on pump gas ..i got a fpr and 1680cc in a fc.."
anything maxxed out above 17 psi on your S300 and you are borderline on fuel injector capacity. you have enough fuel injectors for 439 hp. assumes 85% duty cycle, 43.5 rail pressure, ability to run to 10.0 AFR and 13% lag... AND everything, fuel filter, volts to fuel pump in perfect working order. you need more injector capacity to be on the safe side.
if your injectors are run to the max (85% duty) you will be limited to 17 psi w your turbo. at that point your fuel pump may or may not be capable.
and you'd better be careful w your turbo as you have fuel for 58 pounds of air and the turbo can make 64.
you do not state which Walbro "255" you have... is it the GSS-342 HP (High Pressure) or the standard 342?
secondly fuel output is highly dependent on voltage.
if you have the non HP Walbro and 12 volts to the pump you will be short. you need .92 gallons per minute at 60 psi (43.5 and 17 psi boost) but you will get .83
if you have the HP pump you will get .98 and be O K assuming everything is in good working order.
if you have 13.5 V with the H P pump you will get 1.05 GPM.
howard
anything maxxed out above 17 psi on your S300 and you are borderline on fuel injector capacity. you have enough fuel injectors for 439 hp. assumes 85% duty cycle, 43.5 rail pressure, ability to run to 10.0 AFR and 13% lag... AND everything, fuel filter, volts to fuel pump in perfect working order. you need more injector capacity to be on the safe side.
if your injectors are run to the max (85% duty) you will be limited to 17 psi w your turbo. at that point your fuel pump may or may not be capable.
and you'd better be careful w your turbo as you have fuel for 58 pounds of air and the turbo can make 64.
you do not state which Walbro "255" you have... is it the GSS-342 HP (High Pressure) or the standard 342?
secondly fuel output is highly dependent on voltage.
if you have the non HP Walbro and 12 volts to the pump you will be short. you need .92 gallons per minute at 60 psi (43.5 and 17 psi boost) but you will get .83
if you have the HP pump you will get .98 and be O K assuming everything is in good working order.
if you have 13.5 V with the H P pump you will get 1.05 GPM.
howard
"what's the max a 255 walbro can handle then? idk if i should change mines .my goal is like 450+ on racegas close to 480 and 420ish on pump gas ..i got a fpr and 1680cc in a fc.."
anything maxxed out above 17 psi on your S300 and you are borderline on fuel injector capacity. you have enough fuel injectors for 439 hp. assumes 85% duty cycle, 43.5 rail pressure, ability to run to 10.0 AFR and 13% lag... AND everything, fuel filter, volts to fuel pump in perfect working order. you need more injector capacity to be on the safe side.
if your injectors are run to the max (85% duty) you will be limited to 17 psi w your turbo. at that point your fuel pump may or may not be capable.
and you'd better be careful w your turbo as you have fuel for 58 pounds of air and the turbo can make 64.
you do not state which Walbro "255" you have... is it the GSS-342 HP (High Pressure) or the standard 342?
secondly fuel output is highly dependent on voltage.
if you have the non HP Walbro and 12 volts to the pump you will be short. you need .92 gallons per minute at 60 psi (43.5 and 17 psi boost) but you will get .83
if you have the HP pump you will get .98 and be O K assuming everything is in good working order.
if you have 13.5 V with the H P pump you will get 1.05 GPM.
howard
anything maxxed out above 17 psi on your S300 and you are borderline on fuel injector capacity. you have enough fuel injectors for 439 hp. assumes 85% duty cycle, 43.5 rail pressure, ability to run to 10.0 AFR and 13% lag... AND everything, fuel filter, volts to fuel pump in perfect working order. you need more injector capacity to be on the safe side.
if your injectors are run to the max (85% duty) you will be limited to 17 psi w your turbo. at that point your fuel pump may or may not be capable.
and you'd better be careful w your turbo as you have fuel for 58 pounds of air and the turbo can make 64.
you do not state which Walbro "255" you have... is it the GSS-342 HP (High Pressure) or the standard 342?
secondly fuel output is highly dependent on voltage.
if you have the non HP Walbro and 12 volts to the pump you will be short. you need .92 gallons per minute at 60 psi (43.5 and 17 psi boost) but you will get .83
if you have the HP pump you will get .98 and be O K assuming everything is in good working order.
if you have 13.5 V with the H P pump you will get 1.05 GPM.
howard
I'm just planning on overkilling my system now. Walbro 485, -6 lines, 10 gauge wiring, 40 amp relay, and a 034motorsports filter (really a just Bosch filter with off the shelf metric-AN adapters). I did cheap before and had issues, and honestly this isn't That much more expensive.
This is for a piston build, but I'm going to be running E85 and (6) 72 lb injectors with a Precision 6266.
This is for a piston build, but I'm going to be running E85 and (6) 72 lb injectors with a Precision 6266.
Howard,
I am in the final steps to make 500hp. Well that's the number I have in mind. Right now my set up consist of a bosch 044, 850pri/1680sec, water/meth running 50/50 but I plan just to tune on water, fpr, Borg warner s362 .68flow, and a medium streetport. This engine has made 427 at 17 psi with my old setup. I have added the new turbo, the 850's and bosch pump. Do I have sufficient fuel for my goals?
Other related question is fuel lines
I run an atl fuel cell which I plan to add a -6an line to feed the primary rail. my question is do you think I need to run a -6 or -8 fuel return line?
Ray@pfsupercars will be tuning the car in about a month.
Thank you,
Danny
I am in the final steps to make 500hp. Well that's the number I have in mind. Right now my set up consist of a bosch 044, 850pri/1680sec, water/meth running 50/50 but I plan just to tune on water, fpr, Borg warner s362 .68flow, and a medium streetport. This engine has made 427 at 17 psi with my old setup. I have added the new turbo, the 850's and bosch pump. Do I have sufficient fuel for my goals?
Other related question is fuel lines
I run an atl fuel cell which I plan to add a -6an line to feed the primary rail. my question is do you think I need to run a -6 or -8 fuel return line?
Ray@pfsupercars will be tuning the car in about a month.
Thank you,
Danny
Thread Starter
Joined: Oct 2001
Posts: 6,279
Likes: 728
From: Florence, Alabama
Danny,
there are a number of "S300-62" turbos. please give me more info. BW part number on CHRA, hot and cold side housing info, or vendor.
howard
there are a number of "S300-62" turbos. please give me more info. BW part number on CHRA, hot and cold side housing info, or vendor.
howard