Going to heat fuel line...

Qaiphyx · 11-06-2009, 08:27 PM

I want to heat my fuel line before its injected, using the radiator aluminum piping to the heater core. My s10 is a 1995. My question is, that there are two lines running to the injection system, one by the firewall the other to the front. Which one is the input line? Or are they both input?? Also, can I just cut this line and then attach some fuel line hosing? Or will the PSI of the fuel line pop it off?

By the way its to increase fuel mileage, should increase mileage by about 3mpg.

travisn · 11-06-2009, 08:32 PM

I would recommend not doing that.

S10dude · 11-06-2009, 09:46 PM

your suppose to "cool " the fuel before injection , not " heat "

solidchaos73 · 11-06-2009, 09:57 PM

that would probbaly decrease fuel mileage and possibly truck life my fire haha

94TBlazer · 11-06-2009, 10:25 PM

Let me get this straight: OEMs staffed with research scientists fight for fractional MPG increases and you've discovered a method to bag 3 MPG. But you're not sure which is the fuel feed vs. return line ???

Where's my football bat....

300k · 11-07-2009, 02:08 AM

Quote: Originally Posted by 94TBlazer

Let me get this straight: OEMs staffed with research scientists fight for fractional MPG increases and you've discovered a method to bag 3 MPG. But you're not sure which is the fuel feed vs. return line ???

Where's my football bat....

OEM's always have an agenda. An '87 Civic would get almost 40mpg and a '95 Neon base could get high 30's but the new Cobalt only gets 32 hwy? New diesels have half the emissions they did 5 years ago but use 2X more fuel?

The line around the front is the feed. The back one is the return to the tank.

turboS-10 · 11-07-2009, 03:51 AM

my bet is that it's a lot of work for nothing! Heating and cooling fuel works well in theory but will barely do anything in reality... especially when there's no reason for it. Now if you were pushing 30psi of boost and couldn't get the thing to stop detonating cooling the fuel might help etc. But the 2.2's are very unresponsive to mild modifications so don't expect anything to happen good or bad by heating your fuel.

I personally wouldn't pick on someone for not knowing which line is the feed or return but it's a little sketchy to hear someone talking about two feed lines on one rail. I don't think that's ever been done!?! you'll typically have a feed line and return or just a feed on a returnless system but I have never heard of multiple feeds on a returnless system unless there is a secondary set of injectors. I am not so sure that you should be playing with the fuel system!

comics22 · 11-07-2009, 03:51 AM

Quote: Originally Posted by 300k

OEM's always have an agenda. An '87 Civic would get almost 40mpg and a '95 Neon base could get high 30's but the new Cobalt only gets 32 hwy? New diesels have half the emissions they did 5 years ago but use 2X more fuel?

The line around the front is the feed. The back one is the return to the tank.

EXACTLY, car companies are cheap asses, if they can sell a truck for ohhh 15K but build it for 2k for a decent all aroudn truck why would they decrease thier profit by adding more shit that causes them to loose money in short term and long run?

Alot of us already have discovered an easy way to gain some MPG: ELECTRIC FAN. im sure the gm designers thought of that. if you think research scientists actually fight for .2mpg better why not change the door sticker for tire PSI 1 more lb?

ive heard of what the OP wants to do (dont know if i belive its worth the hassle) since warmer fuel sprays better (kinda like a warm engine runs smoother than a cold one) but unless this is a heater to plug in at night or somehting while your stopped i think your energy saved by having warm fuel will be cancled out by the energy required by the engine (inevetably) to get the heater hot enough. (heaters take alot of amps to get warm, thats how they work)

travisn · 11-07-2009, 12:21 PM

just get some metal fuel line and loop it around the exhaust a few times.

SH-60B · 11-07-2009, 02:05 PM

Quote: Originally Posted by 300k

OEM's always have an agenda. An '87 Civic would get almost 40mpg and a '95 Neon base could get high 30's but the new Cobalt only gets 32 hwy? New diesels have half the emissions they did 5 years ago but use 2X more fuel?

The line around the front is the feed. The back one is the return to the tank.

Their agenda revolves around profit margins. They have to deal with CAFE standards and whatever congress feels like doing to CAFE. The American car companies obey the standards, the European companies just pay the fines, and Japanese don't even need to worry.
Qaiphyx, good luck with this mod.....

Qaiphyx · 11-07-2009, 02:37 PM

Quote: Originally Posted by 300k

OEM's always have an agenda. An '87 Civic would get almost 40mpg and a '95 Neon base could get high 30's but the new Cobalt only gets 32 hwy? New diesels have half the emissions they did 5 years ago but use 2X more fuel?

The line around the front is the feed. The back one is the return to the tank.

Thanks.

CatDaddy52 · 11-07-2009, 03:27 PM

Quote: Originally Posted by SH-60B

Their agenda revolves around profit margins. They have to deal with CAFE standards and whatever congress feels like doing to CAFE. The American car companies obey the standards, the European companies just pay the fines, and Japanese don't even need to worry.
Qaiphyx, good luck with this mod.....

....all true & to take a step further, they must design to meet crash standards, safety standards, emission standards, etc. They must make a car that starts/runs at -50* & also at 120*, it's got to be able to pull a trailer up a 4 mile 6% grade at 120* w/o overheating. The car must also be able to be driven safely by ignorant drivers that don't put air in their tires, know how to park, talk on their phone, apply make-up or even add oil to the engine. On top of that, it's got to be ultra quiet, upshift/downshift without detection & last for 10 years or 200K miles. Oh...& they do need to turn a profit.
So yeah, the auto companies do have an agenda.
If you've never been there, you have no f'n idea how a vehicle gets designed/developed/built.
Rant over!!

Bobthebiker · 11-07-2009, 04:30 PM

Simply put, you're not going to see any change for the better by putting any heating apparatus on your fuel lines.

The engineers that build these things know what they're doing FAR better than you or I unless you've got a degree or six in phyiscs, chemistry, engineering, design, and a LOT of performance background.

A CLEANMACHINE · 11-07-2009, 05:45 PM

this may explain a method to his madness.

http://stores.homestead.com/hydrogen...ter/Detail.bok

mostizzle · 11-07-2009, 09:33 PM

Quote: Originally Posted by travisn

just get some metal fuel line and loop it around the exhaust a few times.

300k · 11-08-2009, 12:28 AM

Quote: Originally Posted by Bobthebiker

Simply put, you're not going to see any change for the better by putting any heating apparatus on your fuel lines.

The engineers that build these things know what they're doing FAR better than you or I unless you've got a degree or six in physics, chemistry, engineering, design, and a LOT of performance background.

Wow I didn't know this was gonna be such a touchy subject. I never said it was a good idea, but I can say that the bean counters have a lot to do with the design of the cars. I'm no physics expert but I do design aftermarket parts for some of the leading company's in the nation.

GmcNoma95 · 11-10-2009, 03:04 PM

Lol, good god..We will be seeing you on the 5 o'clock news as the man who caught his mini truck and himself on fire!....Good luck!

comics22 · 11-10-2009, 03:43 PM

i just remembered seeing that part of the fuel line on my chevette goes way out of its way to run along the top of the exhaust pipe (line is attached to car, exhaust pipe hangs under it, thier not physically touching) for about 8" or so. im thinking it may have to do with the warmer fuel but im not sure. there isnt any other explanation as to why they would run about 2 extra feet of line to gain about 4" towards the front of the car...

11-06-2009, 08:27 PM	#1
Qaiphyx Registered User Age: 25 Join Date: Sep 2009 Posts: 29 Location: User is: OffLine	Going to heat fuel line... I want to heat my fuel line before its injected, using the radiator aluminum piping to the heater core. My s10 is a 1995. My question is, that there are two lines running to the injection system, one by the firewall the other to the front. Which one is the input line? Or are they both input?? Also, can I just cut this line and then attach some fuel line hosing? Or will the PSI of the fuel line pop it off? By the way its to increase fuel mileage, should increase mileage by about 3mpg.
	[Reply w/Quote]

11-06-2009, 08:32 PM	#2
travisn Registered User Age: 23 Join Date: Jun 2006 Posts: 395 Location: Batavia, NY User is: Online	Re: Going to heat fuel line... I would recommend not doing that.
	[Reply w/Quote]

11-06-2009, 09:46 PM	#3
S10dude workin it ! Join Date: May 2006 Posts: 11,022 Location: Sacramento,Ca. User is: OffLine	Re: Going to heat fuel line... your suppose to "cool " the fuel before injection , not " heat "
	[Reply w/Quote]

11-06-2009, 09:57 PM	#4
solidchaos73 Andrew Age: 21 Join Date: Jan 2007 Posts: 1,527 Location: User is: OffLine	Re: Going to heat fuel line... that would probbaly decrease fuel mileage and possibly truck life my fire haha
	[Reply w/Quote]

11-06-2009, 10:25 PM	#5
94TBlazer Registered User Join Date: Oct 2002 Posts: 63 Location: User is: OffLine	Re: Going to heat fuel line... Let me get this straight: OEMs staffed with research scientists fight for fractional MPG increases and you've discovered a method to bag 3 MPG. But you're not sure which is the fuel feed vs. return line ??? Where's my football bat....
	[Reply w/Quote]

11-07-2009, 02:08 AM	#6
300k Registered User Age: 27 Join Date: Dec 2008 Posts: 57 Location: User is: OffLine	Re: Going to heat fuel line... Quote: Originally Posted by 94TBlazer Let me get this straight: OEMs staffed with research scientists fight for fractional MPG increases and you've discovered a method to bag 3 MPG. But you're not sure which is the fuel feed vs. return line ??? Where's my football bat.... OEM's always have an agenda. An '87 Civic would get almost 40mpg and a '95 Neon base could get high 30's but the new Cobalt only gets 32 hwy? New diesels have half the emissions they did 5 years ago but use 2X more fuel? The line around the front is the feed. The back one is the return to the tank.
	[Reply w/Quote]

11-07-2009, 03:51 AM	#7
turboS-10 Registered User Age: 29 Join Date: Jan 2003 Posts: 111 Location: Fort Collins User is: OffLine	Re: Going to heat fuel line... my bet is that it's a lot of work for nothing! Heating and cooling fuel works well in theory but will barely do anything in reality... especially when there's no reason for it. Now if you were pushing 30psi of boost and couldn't get the thing to stop detonating cooling the fuel might help etc. But the 2.2's are very unresponsive to mild modifications so don't expect anything to happen good or bad by heating your fuel. I personally wouldn't pick on someone for not knowing which line is the feed or return but it's a little sketchy to hear someone talking about two feed lines on one rail. I don't think that's ever been done!?! you'll typically have a feed line and return or just a feed on a returnless system but I have never heard of multiple feeds on a returnless system unless there is a secondary set of injectors. I am not so sure that you should be playing with the fuel system!
	[Reply w/Quote]

11-07-2009, 03:51 AM	#8
comics22 Pac is a hackin! Join Date: Jan 2005 Posts: 6,124 Location: Middle of freakin IL User is: OffLine	Re: Going to heat fuel line... Quote: Originally Posted by 300k OEM's always have an agenda. An '87 Civic would get almost 40mpg and a '95 Neon base could get high 30's but the new Cobalt only gets 32 hwy? New diesels have half the emissions they did 5 years ago but use 2X more fuel? The line around the front is the feed. The back one is the return to the tank. EXACTLY, car companies are cheap asses, if they can sell a truck for ohhh 15K but build it for 2k for a decent all aroudn truck why would they decrease thier profit by adding more shit that causes them to loose money in short term and long run? Alot of us already have discovered an easy way to gain some MPG: ELECTRIC FAN. im sure the gm designers thought of that. if you think research scientists actually fight for .2mpg better why not change the door sticker for tire PSI 1 more lb? ive heard of what the OP wants to do (dont know if i belive its worth the hassle) since warmer fuel sprays better (kinda like a warm engine runs smoother than a cold one) but unless this is a heater to plug in at night or somehting while your stopped i think your energy saved by having warm fuel will be cancled out by the energy required by the engine (inevetably) to get the heater hot enough. (heaters take alot of amps to get warm, thats how they work) Last edited by comics22 : 11-07-2009 at 03:55 AM.
	[Reply w/Quote]

11-07-2009, 12:21 PM	#9
travisn Registered User Age: 23 Join Date: Jun 2006 Posts: 395 Location: Batavia, NY User is: Online	Re: Going to heat fuel line... just get some metal fuel line and loop it around the exhaust a few times.
	[Reply w/Quote]

11-07-2009, 02:05 PM	#10
SH-60B Registered Neanderthal Join Date: Nov 2007 Posts: 2,335 Location: Meriden/CT/USA User is: OffLine	Re: Going to heat fuel line... Quote: Originally Posted by 300k OEM's always have an agenda. An '87 Civic would get almost 40mpg and a '95 Neon base could get high 30's but the new Cobalt only gets 32 hwy? New diesels have half the emissions they did 5 years ago but use 2X more fuel? The line around the front is the feed. The back one is the return to the tank. Their agenda revolves around profit margins. They have to deal with CAFE standards and whatever congress feels like doing to CAFE. The American car companies obey the standards, the European companies just pay the fines, and Japanese don't even need to worry. Qaiphyx, good luck with this mod.....
	[Reply w/Quote]

11-07-2009, 02:37 PM	#11
Qaiphyx Registered User Age: 25 Join Date: Sep 2009 Posts: 29 Location: User is: OffLine	Re: Going to heat fuel line... Quote: Originally Posted by 300k OEM's always have an agenda. An '87 Civic would get almost 40mpg and a '95 Neon base could get high 30's but the new Cobalt only gets 32 hwy? New diesels have half the emissions they did 5 years ago but use 2X more fuel? The line around the front is the feed. The back one is the return to the tank. Thanks. Last edited by Qaiphyx : 11-07-2009 at 02:38 PM.
	[Reply w/Quote]

11-07-2009, 03:27 PM	#12
CatDaddy52 Registered User Join Date: Nov 2008 Posts: 760 Location: Rochester Hizzle, MI User is: OffLine	Re: Going to heat fuel line... Quote: Originally Posted by SH-60B Their agenda revolves around profit margins. They have to deal with CAFE standards and whatever congress feels like doing to CAFE. The American car companies obey the standards, the European companies just pay the fines, and Japanese don't even need to worry. Qaiphyx, good luck with this mod..... ....all true & to take a step further, they must design to meet crash standards, safety standards, emission standards, etc. They must make a car that starts/runs at -50* & also at 120, it's got to be able to pull a trailer up a 4 mile 6% grade at 120 w/o overheating. The car must also be able to be driven safely by ignorant drivers that don't put air in their tires, know how to park, talk on their phone, apply make-up or even add oil to the engine. On top of that, it's got to be ultra quiet, upshift/downshift without detection & last for 10 years or 200K miles. Oh...& they do need to turn a profit. So yeah, the auto companies do have an agenda. If you've never been there, you have no f'n idea how a vehicle gets designed/developed/built. Rant over!!
	[Reply w/Quote]

11-07-2009, 04:30 PM	#13
Bobthebiker Registered User Age: 21 Join Date: Aug 2009 Posts: 570 Location: User is: OffLine	Re: Going to heat fuel line... Simply put, you're not going to see any change for the better by putting any heating apparatus on your fuel lines. The engineers that build these things know what they're doing FAR better than you or I unless you've got a degree or six in phyiscs, chemistry, engineering, design, and a LOT of performance background.
	[Reply w/Quote]

11-07-2009, 05:45 PM	#14
A CLEANMACHINE Registered User Join Date: Sep 2006 Posts: 391 Location: ORLAND PARK ILLINOIS User is: OffLine	Re: Going to heat fuel line... this may explain a method to his madness. http://stores.homestead.com/hydrogen...ter/Detail.bok
	[Reply w/Quote]

11-07-2009, 09:33 PM	#15
mostizzle You...Tonight Age: 32 Join Date: Aug 2009 Posts: 785 Location: St.Clair Shores,MI. User is: Online	Re: Going to heat fuel line... Quote: Originally Posted by travisn just get some metal fuel line and loop it around the exhaust a few times.
	[Reply w/Quote]

11-08-2009, 12:28 AM	#16
300k Registered User Age: 27 Join Date: Dec 2008 Posts: 57 Location: User is: OffLine	Re: Going to heat fuel line... Quote: Originally Posted by Bobthebiker Simply put, you're not going to see any change for the better by putting any heating apparatus on your fuel lines. The engineers that build these things know what they're doing FAR better than you or I unless you've got a degree or six in physics, chemistry, engineering, design, and a LOT of performance background. Wow I didn't know this was gonna be such a touchy subject. I never said it was a good idea, but I can say that the bean counters have a lot to do with the design of the cars. I'm no physics expert but I do design aftermarket parts for some of the leading company's in the nation.
	[Reply w/Quote]

11-10-2009, 03:04 PM	#17
GmcNoma95 REDFIRE Age: 21 Join Date: Apr 2007 Posts: 335 Location: Gainesville,VA (703) User is: OffLine	Re: Going to heat fuel line... Lol, good god..We will be seeing you on the 5 o'clock news as the man who caught his mini truck and himself on fire!....Good luck!
	[Reply w/Quote]

11-10-2009, 03:43 PM	#18
comics22 Pac is a hackin! Join Date: Jan 2005 Posts: 6,124 Location: Middle of freakin IL User is: OffLine	Re: Going to heat fuel line... i just remembered seeing that part of the fuel line on my chevette goes way out of its way to run along the top of the exhaust pipe (line is attached to car, exhaust pipe hangs under it, thier not physically touching) for about 8" or so. im thinking it may have to do with the warmer fuel but im not sure. there isnt any other explanation as to why they would run about 2 extra feet of line to gain about 4" towards the front of the car...
	[Reply w/Quote]