LS1 powered S14 with motorplates and modded GTO pan - Page 18 - Zilvia.net Forums | Nissan 240SX (Silvia) and Z (Fairlady) Car Forum

SicBastard · 01-18-2014, 01:13 PM

I've been slowly working on the fuel system. I currently have a huge magnafuel fuel pump, that will safely support a crap ton of horsepower, but is REALLY loud. I've never like the idea of running dual fuel pumps, and up until very recently you didn't have a lot of options. I like the idea of external because it's easy to replace, but then again it's REALLY loud:

http://youtu.be/nQu8L5aycp0

Like damn.

I'm hell bent on not using any rubber fuel line. And with all the alcohol in todays fuels that's probably a good idea. So PTFE lined fuel is really your only way to go then. PTFE is surprisingly hard to find in -10 and bigger still. Pegasus Racing has it ($27.20 per foot for -10, $34.75 for -12, $52.28 for -16; and that's with a price break for buying >5 ft!).

I stumbled upon these solid aluminum extruded coolers advertised as transmission coolers. They are advertised with a lot of different end fittings (but I'm pretty sure they all have NPT 3/4" female threads) and are in lengths of 12, 36, and 48 inches x 1.75".

The relatively flat section of floor on the S14 just happens to be about 50", and the frame rails are 2.25" deep towards the front, and 1.25" towards the rear (not tall enough, might require a little floor clearancing under the seat).

My giant fuel pump flows so much, that at lower rpm (street driving) the fuel will be repeatedly recycled through the engine compartment, so I thought the coolers would be good idea.

After seeing all of the havoc that the new alcoholic fuels are causing inside aluminum carburetors, I was concerned for a second about adding aluminum line to my fuel system, until I remembered that my fuel rails are aluminum. So no worries right?

I also have a pathological aversion to NPT fittings in fuel systems, and can't decide if I should just use NPT to AN adapters with these coolers or if I should weld on AN fittings?

What are yalls opinion on NPT fittings for fuel systems?

Beejis60 · 01-18-2014, 01:50 PM

NPT fittings are fine and probably a bit cheaper.
As for that cooler, I'm running that same one (from Speedway for like $15) as a PS cooler.

RUTH'LESSDET · 02-20-2015, 11:55 AM

Is this thing finished ??? What's up Dru

SicBastard · 02-20-2015, 12:09 PM

Had a baby last summer, and things have been crawling since then. I bought a header modeling kit, and have done some work with those. Also ordered a new 3D printer, and have some big ideas.

Here's a practice 3D scan I did of the engine bay.

http://youtu.be/3NwmQkApWv8

I made a v-band belt reduction to slow down my harborfreight 14" band saw, and ordered some custom band saw blades so that I could cleanly cut the stainless header tubes.

Trying to get the Try-Y headers equal length around the steering shaft is an exercise in pure frustration.

PS if you're looking into getting the ICE engine works header modeling kit, the basic kit is no where near enough pieces to model even a 4 cylinder full-length header.

SicBastard · 01-11-2016, 02:43 PM

I moved back to California! Still messn with my bandsaw and the headers. Ordered a driveshaft. I was going to go CF until I got the below email:

This is what we have 1350 carbon fiber shaft 3.79” O.D. complete with Transmission yoke u-joints Aluminum 1350 flange and machine work on your companion flange total cost is $1314.09 plus tax and freight. According to my data supplied by my carbon fiber supplier the weight on the drive shaft alone with the ends bonded into the carbon tube no joints or other yokes attached it will way 6.7 Lbs. On the 3.5” O.D. Aluminum shaft total cost would be $760.14 plus tax and freight. And weighing out the same way it is 7 Lbs. give or take a few Oz.

Thank You

Jeff Gilroy

Inland Empire Drive Line Service Inc..
909-390-3030

Lees_Garage · 01-11-2016, 04:22 PM

I thought this build was dead, great to see you still plugging away at it.

laextreme5 · 01-19-2016, 07:39 AM

OOhh another person obsessed with getting the motor low and far back. Not enough people do this, makes a huge difference.

blueshark123 · 01-19-2016, 10:41 AM

WOW shocked to see this still going.

SicBastard · 07-15-2017, 10:16 AM

Quote:

Originally Posted by blueshark123

WOW shocked to see this still going.

Hey guys, are these rear hubs ok to use?

Real update to follow.

gsracer · 07-22-2017, 09:15 PM

you and me are in it for the long haul looks like we've both been at it for 10+ years lol... just posted a rebuild thread my self

http://zilvia.net/f/showthread.php?t=648710

01-18-2014, 01:13 PM	#1
SicBastard Zilvia Addict Join Date: Mar 2006 Location: New York, NY Posts: 803 Trader Rating: (0) Feedback Score: 0 reviews	I've been slowly working on the fuel system. I currently have a huge magnafuel fuel pump, that will safely support a crap ton of horsepower, but is REALLY loud. I've never like the idea of running dual fuel pumps, and up until very recently you didn't have a lot of options. I like the idea of external because it's easy to replace, but then again it's REALLY loud: http://youtu.be/nQu8L5aycp0 Like damn. I'm hell bent on not using any rubber fuel line. And with all the alcohol in todays fuels that's probably a good idea. So PTFE lined fuel is really your only way to go then. PTFE is surprisingly hard to find in -10 and bigger still. Pegasus Racing has it ($27.20 per foot for -10, $34.75 for -12, $52.28 for -16; and that's with a price break for buying >5 ft!). I stumbled upon these solid aluminum extruded coolers advertised as transmission coolers. They are advertised with a lot of different end fittings (but I'm pretty sure they all have NPT 3/4" female threads) and are in lengths of 12, 36, and 48 inches x 1.75". The relatively flat section of floor on the S14 just happens to be about 50", and the frame rails are 2.25" deep towards the front, and 1.25" towards the rear (not tall enough, might require a little floor clearancing under the seat). My giant fuel pump flows so much, that at lower rpm (street driving) the fuel will be repeatedly recycled through the engine compartment, so I thought the coolers would be good idea. After seeing all of the havoc that the new alcoholic fuels are causing inside aluminum carburetors, I was concerned for a second about adding aluminum line to my fuel system, until I remembered that my fuel rails are aluminum. So no worries right? I also have a pathological aversion to NPT fittings in fuel systems, and can't decide if I should just use NPT to AN adapters with these coolers or if I should weld on AN fittings? What are yalls opinion on NPT fittings for fuel systems? __________________ BURN OUT IN YOUR FACE! 1998 S14 LS7/T56 swap in progress, build thread: http://zilvia.net/f/tech-talk/147301...d-gto-pan.html

02-20-2015, 11:55 AM	#3
RUTH'LESSDET Zilvia Addict Join Date: Jan 2003 Location: NYC Age: 44 Posts: 905 Trader Rating: (1) Feedback Score: 1 reviews	Is this thing finished ??? What's up Dru __________________ 91 Sil80-Sold, LS2 Powered 1997 240sx-Traded, 2005 350z-Sold, Whats next?

02-20-2015, 12:09 PM	#4
SicBastard Zilvia Addict Join Date: Mar 2006 Location: New York, NY Posts: 803 Trader Rating: (0) Feedback Score: 0 reviews	Had a baby last summer, and things have been crawling since then. I bought a header modeling kit, and have done some work with those. Also ordered a new 3D printer, and have some big ideas. Here's a practice 3D scan I did of the engine bay. http://youtu.be/3NwmQkApWv8 I made a v-band belt reduction to slow down my harborfreight 14" band saw, and ordered some custom band saw blades so that I could cleanly cut the stainless header tubes. Trying to get the Try-Y headers equal length around the steering shaft is an exercise in pure frustration. PS if you're looking into getting the ICE engine works header modeling kit, the basic kit is no where near enough pieces to model even a 4 cylinder full-length header. __________________ BURN OUT IN YOUR FACE! 1998 S14 LS7/T56 swap in progress, build thread: http://zilvia.net/f/tech-talk/147301...d-gto-pan.html

01-11-2016, 02:43 PM	#5
SicBastard Zilvia Addict Join Date: Mar 2006 Location: New York, NY Posts: 803 Trader Rating: (0) Feedback Score: 0 reviews	I moved back to California! Still messn with my bandsaw and the headers. Ordered a driveshaft. I was going to go CF until I got the below email: This is what we have 1350 carbon fiber shaft 3.79” O.D. complete with Transmission yoke u-joints Aluminum 1350 flange and machine work on your companion flange total cost is $1314.09 plus tax and freight. According to my data supplied by my carbon fiber supplier the weight on the drive shaft alone with the ends bonded into the carbon tube no joints or other yokes attached it will way 6.7 Lbs. On the 3.5” O.D. Aluminum shaft total cost would be $760.14 plus tax and freight. And weighing out the same way it is 7 Lbs. give or take a few Oz. Thank You Jeff Gilroy Inland Empire Drive Line Service Inc.. 909-390-3030 __________________ BURN OUT IN YOUR FACE! 1998 S14 LS7/T56 swap in progress, build thread: http://zilvia.net/f/tech-talk/147301...d-gto-pan.html

01-11-2016, 04:22 PM	#6
Lees_Garage Zilvia FREAK! Join Date: Feb 2007 Location: Southern CA Posts: 1,190 Trader Rating: (66) Feedback Score: 66 reviews	I thought this build was dead, great to see you still plugging away at it. __________________ Build Thread @lees_garage

01-18-2014, 01:50 PM	#2
Beejis60 BANNED Join Date: Jul 2009 Location: in a house Posts: 564 Trader Rating: (4) Feedback Score: 4 reviews	NPT fittings are fine and probably a bit cheaper. As for that cooler, I'm running that same one (from Speedway for like $15) as a PS cooler.

01-19-2016, 07:39 AM	#7
laextreme5 Zilvia Member Join Date: Oct 2015 Location: Louisiana Posts: 174 Trader Rating: (0) Feedback Score: 0 reviews	OOhh another person obsessed with getting the motor low and far back. Not enough people do this, makes a huge difference. __________________ My S13 Build http://zilvia.net/f/showthread.php?p=6005967#post6005967

01-19-2016, 10:41 AM	#8
blueshark123 Post Whore! Join Date: Apr 2006 Location: North Jersey Posts: 5,481 Trader Rating: (55) Feedback Score: 55 reviews	WOW shocked to see this still going.

07-22-2017, 09:15 PM	#10
gsracer Zilvia FREAK! Join Date: Mar 2003 Location: Miami Age: 40 Posts: 1,590 Trader Rating: (7) Feedback Score: 7 reviews	you and me are in it for the long haul looks like we've both been at it for 10+ years lol... just posted a rebuild thread my self http://zilvia.net/f/showthread.php?t=648710 __________________ ANTI-STRETCH NAZI Vortech Supercharged Vh45de S14 V8nissans.com