Zl1 fuel pump

[ADM PERFORMANCE]

Originally Posted by 760bowtie

I did 650 on e85 with 1000cc injectors and adm fpcm. I'm going to dual pumps next week

AMEN. That ZL1 Pump is being overworked for sure on e85.

[Navy Chief MoonsSS]

Originally Posted by ADM PERFORMANCE

AMEN. That ZL1 Pump is being overworked for sure on e85.

Is that strictly because of the e85? Or hp? Mines being installed right now and I went with the ZL1 pump ADM fpcm and id850'S. I'm projecting it will be somewhere in the 650rwhp range with the SLP TVS2300 and btr stage 3 blower cam and SW long tubes...I researched as much as I could and everything I read said the ZL1 pump would handle that setup. Am I correct in this? I don't ever plan on running e85...is that the factor that requires dual pumps to be safe?

[760bowtie]

Yea I'm pretty sure it's because of the E85. I'm on flex fuel, run 91 most of the time just wanted to see what it could do on E85. I want to run E85 more so that why I'm upgrading to the dual pumps

[UNRIVALED SS]

You will have plenty of fuel

[ADM PERFORMANCE]

Originally Posted by Navy Chief MoonsSS

Is that strictly because of the e85? Or hp? Mines being installed right now and I went with the ZL1 pump ADM fpcm and id850'S. I'm projecting it will be somewhere in the 650rwhp range with the SLP TVS2300 and btr stage 3 blower cam and SW long tubes...I researched as much as I could and everything I read said the ZL1 pump would handle that setup. Am I correct in this? I don't ever plan on running e85...is that the factor that requires dual pumps to be safe?

If you compare gasoline and E85, they have roughly a 20 to 25 percent(I always say to my customers you need twice the supply) differential in energy density by mass. We can’t change that. What we can do is compensate for it by delivering more fuel mass to make up the difference.

ZL1 Pump delivers approximately 250 liters per hour at 65 psi (450 kPa) and will support engines producing up to about 600 horsepower on gasoline – although its performance range with custom and modified engines is determined by factors including the air/fuel ratio, compression ratio and others.

Optimal LPH = (Max. HP x BSFC) / 1.585

Most BFSC for forced induction is .59-.75

650hp x .59 / 1.585 = 241.95 (This is based off flywheel hp not rear wheel) Turbo

650 x .75 / 1.585 = 307 .57 (This is based off flywheel hp not rear wheel) Belt driven S/C

FOR E85 you multiply 307 x 1.25 to 1.5(BEST) and you get 383 - 460 lph of fuel delivery for 650HP on E85.(This is based off flywheel hp not rear wheel)

BSFC for E85 with forced induction is .84-.91

[Navy Chief MoonsSS]

Originally Posted by ADM PERFORMANCE

If you compare gasoline and E85, they have roughly a 20 to 25 percent(I always say to my customers you need twice the supply) differential in energy density by mass. We can’t change that. What we can do is compensate for it by delivering more fuel mass to make up the difference.

ZL1 Pump delivers approximately 250 liters per hour at 65 psi (450 kPa) and will support engines producing up to about 600 horsepower on gasoline – although its performance range with custom and modified engines is determined by factors including the air/fuel ratio, compression ratio and others.

Optimal LPH = (Max. HP x BSFC) / 1.585

Most BFSC for forced induction is .59-.75

650hp x .59 / 1.585 = 241.95 (This is based off flywheel hp not rear wheel) Turbo

650 x .75 / 1.585 = 307 .57 (This is based off flywheel hp not rear wheel) Belt driven S/C

FOR E85 you multiply 307 x 1.25 to 1.5(BEST) and you get 383 - 460 lph of fuel delivery for 650HP on E85.(This is based off flywheel hp not rear wheel)

BSFC for E85 with forced induction is .84-.91

Wow thanks for the info! Great response! If I understand correctly 650 rwhp = 748 flywheel hp which plug that into the equation 750 x .75 / 1.585 = 355 lph needed. Zl1 pump is good to 250 lph so I'm going to be about 100 lph short?

Or does the ADM fpcm and larger id850 injectors make a difference? I've seen guys on here with the exact setup and no issues is why I decided to go that route...I'll be pumping 93 hope it holds like the other people's...

On a different note...MAN E85 is a guzzling way to go! Yeah I see the need for dual pumps to run it safely.

[Navy Chief MoonsSS]

Originally Posted by UNRIVALED SS

You will have plenty of fuel

Awesome! Is that because of the injectors? Any elaboration is welcomed...as I am still learning...thanks!

[Navy Chief MoonsSS]

Just looking to see if anyone has any knowledge on my last question?

Thanks

-Ryan

[Batmanntexas]

Well, it's really a multitude of factors. I believe that you will be fine at 650RWHP with the ZL1 pump, ADM FPCM, and ID850's. You have a bigger injector that will flow more fuel, but it will do it at a shorter duty cycle, so I think this will buy you an additional margin of safety. the system still has to move X amount of fuel, but the pump will be afforded the extra injector off-time to keep up. Just my $.02 anyway.

-Scott

[Navy Chief MoonsSS]

Originally Posted by Batmanntexas

Well, it's really a multitude of factors. I believe that you will be fine at 650RWHP with the ZL1 pump, ADM FPCM, and ID850's. You have a bigger injector that will flow more fuel, but it will do it at a shorter duty cycle, so I think this will buy you an additional margin of safety. the system still has to move X amount of fuel, but the pump will be afforded the extra injector off-time to keep up. Just my $.02 anyway.

-Scott

Awesome lol thanks Scott...knew I could count on you...it's just surprising to me more people don't chime in...anyways everything you said makes perfect sense...thanks for the details and for answering my question.


-Ryan

[ADM PERFORMANCE]

Originally Posted by Navy Chief MoonsSS

Awesome lol thanks Scott...knew I could count on you...it's just surprising to me more people don't chime in...anyways everything you said makes perfect sense...thanks for the details and for answering my question.


-Ryan

Most consumers do not want to hear the truth because it boils down to MONEY. It always boils down to MONEY, Most try their best to save money....That's just Human Nature!

When it comes to fuel you need to forget how much it cost,just pay for the right combo and never look back

I am not here to tell lies,I am here to give the facts.

[RealQuick]

1000cc injectors, ADM FPCM and ZL-1 pump has supported me at 703rwhp/762rwtq with a ton of room to go due to me running 93 and meth. I am also turbo (less parasitic loss then blower (so less fuel consumption).

[2010_camaro]

I made 640whp with just a ZL1 pump and fast 85# injectors. My tuner said the FPCM was a waste of money. He said I BAP would be good but it's also something that could fail.

[Navy Chief MoonsSS]

Originally Posted by RealQuick

1000cc injectors, ADM FPCM and ZL-1 pump has supported me at 703rwhp/762rwtq with a ton of room to go due to me running 93 and meth. I am also turbo (less parasitic loss then blower (so less fuel consumption).

Thank you for clearing the air there...I should be between 600 and 650rwhp so that's about on Par with your build accounting for the larger injectors and more HP. Only thing...I'm not running meth.