When do you need a twin fuel pump?

phunk · 11-27-2017, 12:19 PM

Quote:

Originally Posted by jax4557

Charles,

My setup is close to Justin minus the twin pumps and I believe he has bigger than my 1150cc injectors? Does he daily his car and feel comfortable at this level with regards to reliability? Although hes at 818 did he run this pass at that level?

He has a 1300cc injector in the car. Mostly daily driven but he has another car for bad weather.

As for feeling comfortable with the power... like with any new power level, it takes time to establish comfort. Justin wants to build his motor and start working on the next milestone rather than stick around to see what happens long term in the 800s stock engine. Now that we know it’s not simply suicide to push it in the 800s (with appropriate care taken), I expect that sooner or later a few cars will be testing the same water and letting us know their experiences.

Spoiler · 11-27-2017, 09:42 AM

Quote:

Originally Posted by phunk

When you want to run 9s.

The CJM twin pump prototype unlocked the extra power necessary to pull it off. That is the one modification that sets this car apart from the typical boosted 370z. How much power? 818whp Dynojet STD at 18.5psi on it’s highest setting.

It helps to have a good tuner such as SpecialtyZ as well. And E85.

Keep an eye out for our official release of the new twin pump. It can be installed as a drop-in upgrade for our fuel systems without having to change the plumbing.

Pretty nice grocery getter....

Jayhovah · 11-27-2017, 12:40 PM

Fixed video:

ZontheRocks · 11-27-2017, 02:03 PM

Quote:

Originally Posted by Jayhovah

Fixed video:

All I can say is, "WOW!"

Way to put to 370Z on the map with the 9 second pass!

phunk · 11-27-2017, 02:08 PM

Quote:

Originally Posted by Jayhovah

Fixed video:

ok I see what you did... the browsers dont want the full URL for some reason. Thats pretty silly. Was working fine from my mobile devices but I see on my work PC that it didnt. Fixed mine.

Jayhovah · 11-27-2017, 02:13 PM

Quote:

Originally Posted by phunk

What did I do wrong?? Now that i am at work I can see that my post does not play it on a PC. But on my mobile devices it works.

With the YouTube BBCode, you only need the ID of the video and not the entire youtube URL.

The URL for this video is https://youtu.be/aHXMTzenVTg
All you need for the embedding is aHXMTzenVTg

BTW, I send you a couple of PM's =) Might be easier to communicate over email? I am ready to order stuff tonight =)

Hotrodz · 11-27-2017, 03:39 PM

Great job Charles, Seb was pretty excited about your collaboration on this project. Awesome stuff that is going in the Z community.

Sent from my SM-N910P using Tapatalk

Spooler · 01-18-2018, 06:54 PM

Hey Phunk, What all would I need to do a return system and twin pumps? This will be a new upgrade. I am stock at the moment.

phunk · 01-18-2018, 07:15 PM

When used with our existing S1.E and S1.SE fuel systems, you can just add the twin pump. Nothing else in the fuel system needs to change. This spring when we start putting Justins Z back together with the built engine we will make some larger hose upgrades available for maximizing the twin pumps output, but it will already support most likely 1000whp with no issues as is.

If the car has one of our older fuel systems that does not include an external filter, most of the plumbing will need to be replaced and a filter added.

Spooler · 01-18-2018, 07:20 PM

What 2 pumps will I need for E85 and a max goal of 800hp?

Rusty · 01-18-2018, 07:59 PM

Quote:

Originally Posted by Spooler

What 2 pumps will I need for E85 and a max goal of 800hp?

Is someone planning on boost?

Spooler · 01-18-2018, 08:17 PM

Quote:

Originally Posted by Rusty

Is someone planning on boost?

I have been planning for over 2 years. LOL Time to stop planning and start doing.

phunk · 01-18-2018, 07:40 PM

You could use a pair of Aeromotive 340, or a pair of Walbro 450... DW probably has some pumps that fit, I need to get more familiar with their product line one of these days. You can even mix and match, like one 340 and one 450, etc. 800 isnt a lot to ask of twin pumps since a single 450 can typically take you to 700whp with our high compression and relatively lower max boost engines.

I would highly recommend picking up a Hobbs switch to activate the second pumps relay in boost only... so that you arent pumping 1200hp+ of fuel back and forth just to idle and drive around.

Spooler · 01-18-2018, 09:25 PM

Guess I need to go with a single to start with until I build the motor at a later date.

B&W_Evader · 01-19-2018, 09:12 AM

Congrats guys... Love it at the end... "Stock...Not looking good though" guess we know what the limit of the half shafts are now.

11-27-2017, 03:39 PM	#7 (permalink)
Hotrodz A True Z Fanatic Join Date: Aug 2012 Location: NW, AZ Posts: 9,330 Drives: 10 Nissan 370z Nismo Rep Power: 2684386	Great job Charles, Seb was pretty excited about your collaboration on this project. Awesome stuff that is going in the Z community. Sent from my SM-N910P using Tapatalk phunk likes this. __________________ *Fast Intentions TT Installed and Tuned by Seb at SpecialtyZ 610whp 560tq:\|Fast Intentions 3" TT-TDX*\|SpecialtyZ/Fast Intentions 72 Row Oil Cooler\|SZ 6 Puck Clutch & Flywheel\|3GsCustoms\|Z1\|Wavetrac\|Hotchkis\|Whiteline \|Blitz\|Fortune Auto 500\|Fujimura\|SPL\|H&R\|TK\|TWM\|RPM Rollbar\|Sparco\|Next Level Performance\|TrackSpec\|AeroFlow Dynamics\|Pioneer\|

01-18-2018, 06:54 PM	#8 (permalink)
Spooler A True Z Fanatic Join Date: Jun 2014 Location: Ga Posts: 14,153 Drives: 2013 Nismo 370z Rep Power: 2684394	Hey Phunk, What all would I need to do a return system and twin pumps? This will be a new upgrade. I am stock at the moment. Last edited by Spooler; 01-18-2018 at 07:14 PM.

01-18-2018, 07:15 PM	#9 (permalink)
phunk A True Z Fanatic Join Date: Mar 2009 Location: Chicago Posts: 3,669 Drives: 370 Rep Power: 974725	When used with our existing S1.E and S1.SE fuel systems, you can just add the twin pump. Nothing else in the fuel system needs to change. This spring when we start putting Justins Z back together with the built engine we will make some larger hose upgrades available for maximizing the twin pumps output, but it will already support most likely 1000whp with no issues as is. If the car has one of our older fuel systems that does not include an external filter, most of the plumbing will need to be replaced and a filter added. __________________ Charles @ CJ Motorsports : Website \| Facebook \| Instagram \| YouTube Home of the 9 second, stock longblock, stock drivetrain 6MT 370z. 9.91 @ 142mph

01-18-2018, 07:40 PM	#13 (permalink)
phunk A True Z Fanatic Join Date: Mar 2009 Location: Chicago Posts: 3,669 Drives: 370 Rep Power: 974725	You could use a pair of Aeromotive 340, or a pair of Walbro 450... DW probably has some pumps that fit, I need to get more familiar with their product line one of these days. You can even mix and match, like one 340 and one 450, etc. 800 isnt a lot to ask of twin pumps since a single 450 can typically take you to 700whp with our high compression and relatively lower max boost engines. I would highly recommend picking up a Hobbs switch to activate the second pumps relay in boost only... so that you arent pumping 1200hp+ of fuel back and forth just to idle and drive around. Rusty, Hotrodz, Spooler and 1 others like this. __________________ Charles @ CJ Motorsports : Website \| Facebook \| Instagram \| YouTube Home of the 9 second, stock longblock, stock drivetrain 6MT 370z. 9.91 @ 142mph

01-19-2018, 09:12 AM	#15 (permalink)
B&W_Evader Track Member Join Date: Aug 2011 Location: CA Posts: 972 Drives: slower than before Rep Power: 388	Congrats guys... Love it at the end... "Stock...Not looking good though" guess we know what the limit of the half shafts are now. phunk likes this. __________________ \|RIP\|6spd-sport\|OSG-LSD\|XP8\|RBF600\|Eibach Sways\|RE-71R\|FI-34Row\|Gen3-CAI\|Yaw P.S.\|

01-18-2018, 07:20 PM	#10 (permalink)
Spooler A True Z Fanatic Join Date: Jun 2014 Location: Ga Posts: 14,153 Drives: 2013 Nismo 370z Rep Power: 2684394	What 2 pumps will I need for E85 and a max goal of 800hp?

01-18-2018, 09:25 PM	#14 (permalink)
Spooler A True Z Fanatic Join Date: Jun 2014 Location: Ga Posts: 14,153 Drives: 2013 Nismo 370z Rep Power: 2684394	Guess I need to go with a single to start with until I build the motor at a later date.

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