possible deadly situation? - Zilvia.net Forums | Nissan 240SX (Silvia) and Z (Fairlady) Car Forum

slothonaleash · 12-20-2008, 11:10 AM

Hey guys I've got a question about the potential of me bursting into flames along with my car.

I'm yet to drive it like this, but in an attempt to get my exhaust (buddy club spec II) hanging higher, I have it rigged up to where a point on the exhaust about 1.5 feet from the tip is touching the gas tank.

Question is... I know heat+gasoline=bang, but does the back end of the exhaust create enough heat to cause a problem with touching the gas tank.

The resulting ground clearance would be cantankerous, though.

P.S. I hate the exhaust tow hook

YoungGun · 12-20-2008, 11:12 AM

I think you're missing the spark for the BANG.

LA_phantom_240 · 12-20-2008, 11:15 AM

LOL 'cantankerous' must have been one of your vocabulary words in school this week.

Sorry bout that, I just found it funny.

To answer your question, I wouldn't think that having the exhaust touching the fuel tank would be cause for panic, though I would only recommend driving it when necessary. The heat generated there shouldn't be enough to ignite anything. Be careful you don't wear a hole in the tank though, I had a friend have that happen in a Del Sol and it ended up catching on fire taking off from a stop sign cause it backfired and lit up the fuel underneath the car. Was kinda funny to watch it happen though. Luckily he had an extinguisher behind the seat so the only thing damaged was the fuel pump wiring.

slothonaleash · 12-20-2008, 11:16 AM

Ignition point for gasoline is 495 degrees fahrenheit.

I'm guessing you only get those kinda of temps in the manifold and a little further down? (seeing as though my car does after fire every once in a while)

edit:

sounds good phantom... I'll put some kind of buffer between the tank and the exhaust maybe (bike innertube or something ghetto of the sort)

and I'm known in class for my incorrect use of my multifarious vocabulary

thanks guys

LA_phantom_240 · 12-20-2008, 11:18 AM

Quote:

Originally Posted by slothonaleash

Ignition point for gasoline is 495 degrees fahrenheit.

I'm guessing you only get those kinda of temps in the manifold and a little further down? (seeing as though my car does after fire every once in a while)

You mean backfire?

slothonaleash · 12-20-2008, 11:21 AM

Quote:

Originally Posted by LA_phantom_240

You mean backfire?

It's my understanding that backfire is an explosion through the intake manifold/carb

Afterfire occurs through the exhaust

Back-fire - Wikipedia, the free encyclopedia

I dunno

you understood what I said haha

LA_phantom_240 · 12-20-2008, 11:26 AM

Quote:

Originally Posted by slothonaleash

I dunno

you understood what I said haha

Indeed.

fknmsglgth

Bigsyke · 12-20-2008, 11:31 AM

are you guys serious?? Ive seen countless rear bumpers melted, and yes on a hot summer day it can very well get up to 500*+, the manifold can get around 1300*f.

My NA KA24DE shoots flames out durring decel......theres your spark

xkamikazestormx · 12-20-2008, 11:37 AM

Quote:

Originally Posted by Bigsyke

My NA KA24DE shoots flames out durring decel......theres your spark

because the end of your exhaust is where the gas tank is

***S14DB*** · 12-20-2008, 12:21 PM

Ever put a paper cup of water over a burner? The water will boil before the cup burns.

Gasoline only burns as a vapor not as a liquid. You would have to boil off the whole tank for it to ignite. I don't see that happening 1.5 feet away.

1ZlowZ · 12-20-2008, 03:09 PM

Edit: nvm im stupid i rwad wrong.

Def · 12-20-2008, 03:21 PM

Just wrap that part in header wrap and safety wire it in place - no more worries and it won't take more than a few minutes. Wrap other stuff in header wrap that gets hot and enjoy [Best Motoring Voiceover Announcer Engrish]cool driving[/Best Motoring Announcer Engrish].

Matej · 12-20-2008, 03:27 PM

You'll be fine. I have my exhaust routed through my gas tank.

Bigsyke · 12-20-2008, 06:19 PM

Quote:

Originally Posted by slothonaleash

I have it rigged up to where a point on the exhaust about 1.5 feet from the tip is touching the gas tank.

Question is... I know heat+gasoline=bang, but does the back end of the exhaust create enough heat to cause a problem with touching the gas tank.

The resulting ground clearance would be cantankerous, though.

P.S. I hate the exhaust tow hook

Quote:

Originally Posted by xkamikazestormx

because the end of your exhaust is where the gas tank is

Well under the influence of a purple rain, I guess I read the question wrong. But I still hold my case that Exhaust pipes + gas tank = bad,

silviaguy240 · 12-20-2008, 08:47 PM

forgive my science knowledge and generalization..but it may heat the gas and make it atomize better maybe?

***S14DB*** · 12-21-2008, 07:20 AM

Quote:

Originally Posted by silviaguy240

forgive my science knowledge and generalization..but it may heat the gas and make it atomize better maybe?

In the tank?

OBEEWON · 12-21-2008, 08:00 AM

Quote:

Originally Posted by S14DB

In the tank?

ahaha...

1.5 feet is good. Ive melted a gas tank before. 1.5 feet is plenty good room sir. That plastic is pretty thick like a chick from hotlanta.

12-20-2008, 11:10 AM	#1
slothonaleash Zilvia Addict Join Date: Jan 2007 Location: Columbus, Ohio Age: 33 Posts: 745 Trader Rating: (4) Feedback Score: 4 reviews	possible deadly situation? Hey guys I've got a question about the potential of me bursting into flames along with my car. I'm yet to drive it like this, but in an attempt to get my exhaust (buddy club spec II) hanging higher, I have it rigged up to where a point on the exhaust about 1.5 feet from the tip is touching the gas tank. Question is... I know heat+gasoline=bang, but does the back end of the exhaust create enough heat to cause a problem with touching the gas tank. The resulting ground clearance would be cantankerous, though. P.S. I hate the exhaust tow hook

12-20-2008, 12:21 PM	#10
*S14DB* AFC #1 Join Date: Oct 2003 Location: 昨晩あなたのお母さんの家 Posts: 20,181 Trader Rating: (3) Feedback Score: 3 reviews	Ever put a paper cup of water over a burner? The water will boil before the cup burns. Gasoline only burns as a vapor not as a liquid. You would have to boil off the whole tank for it to ignite. I don't see that happening 1.5 feet away. __________________ Comments should be taken as Opinions not as Statements of Fact

12-20-2008, 03:09 PM	#11
1ZlowZ Zilvia Addict Join Date: Mar 2008 Location: Apple Valley Age: 32 Posts: 649 Trader Rating: (1) Feedback Score: 1 reviews	Edit: nvm im stupid i rwad wrong. __________________ -Victor S.

12-20-2008, 08:47 PM	#15
silviaguy240 Post Whore! Join Date: Feb 2005 Location: Delaware Age: 36 Posts: 3,719 Trader Rating: (15) Feedback Score: 15 reviews	forgive my science knowledge and generalization..but it may heat the gas and make it atomize better maybe? __________________

12-20-2008, 11:12 AM	#2
YoungGun Post Whore! Join Date: Nov 2007 Location: 818-951 SoCal Posts: 3,961 Trader Rating: (23) Feedback Score: 23 reviews	I think you're missing the spark for the BANG.

12-20-2008, 11:16 AM	#4
slothonaleash Zilvia Addict Join Date: Jan 2007 Location: Columbus, Ohio Age: 33 Posts: 745 Trader Rating: (4) Feedback Score: 4 reviews	Ignition point for gasoline is 495 degrees fahrenheit. I'm guessing you only get those kinda of temps in the manifold and a little further down? (seeing as though my car does after fire every once in a while) edit: sounds good phantom... I'll put some kind of buffer between the tank and the exhaust maybe (bike innertube or something ghetto of the sort) and I'm known in class for my incorrect use of my multifarious vocabulary thanks guys

12-20-2008, 11:31 AM	#8
Bigsyke Zilvia FREAK! Join Date: Jun 2008 Location: NA Age: 40 Posts: 1,342 Trader Rating: (0) Feedback Score: 0 reviews	are you guys serious?? Ive seen countless rear bumpers melted, and yes on a hot summer day it can very well get up to 500+, the manifold can get around 1300f. My NA KA24DE shoots flames out durring decel......theres your spark

12-20-2008, 03:21 PM	#12
Def Post Whore! Join Date: Apr 2004 Location: Houston, TX Posts: 2,701 Trader Rating: (16) Feedback Score: 16 reviews	Just wrap that part in header wrap and safety wire it in place - no more worries and it won't take more than a few minutes. Wrap other stuff in header wrap that gets hot and enjoy [Best Motoring Voiceover Announcer Engrish]cool driving[/Best Motoring Announcer Engrish].

12-20-2008, 03:27 PM	#13
Matej Post Whore! Join Date: Feb 2007 Location: N/A Posts: 9,423 Trader Rating: (39) Feedback Score: 39 reviews	You'll be fine. I have my exhaust routed through my gas tank.