I was with a friend of mine getting his exhaust redone the other day, when I suggested getting it run straight under the car, then angled so it can hang where it is supposed to. The exhaust guy said he won't do it because of the gas tank!

I was wondering why shouldn't you run the exhaust under the gas tank?? I would think the gas tank is designed to keep heat out. I'm not sure though. Please help because I'm considering running the same setup.

 

you could possibly have your exhaust rust through and possibly backfire one day and possibly have a small explosion...

also, the gas tank when heated over a period of time would become weaker due to the molecules being heated constantly... which could cause a small leak and a small leak on a hot exhaust could possibly combust turning into 1. a dead person or 2. a very fuxxed up car...

too many factors...
its just a bad idea.

 

Would ceramic coating the piping help this idea. I've seen it done a few times with a straight through exhaust?

 

bump

 

Like this.

 

???

 

Need answers, I'm getting this done tommorow.

 

why???

 

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by dohcVTECeg2 &raquo;</TD></TR><TR><TD CLASS="quote">why???</TD></TR></TABLE>

Why does it matter? I just want to know are there any disadvantages or downfalls to doing this.

 

I would say your car being blown into the sky is a small disadvantage.

You still have that factor of time. You could easily bang up that exhaust, which means that a ceramic coat might get chipped or knocked off in areas. Even then, it still heats up, just not as bad. I just can't be convinced that it's a good idea.

 

nor can i..
I do not see a valid advantage that would/could outweigh the problems that could possibly sprout up..
I, personally, am a fan of keeping the exhaust as far away as possible from the fuel cell.

Advantage: Don't see any
Disdvantage(s): unnecessary heat transmitted to the fuel cell and it's contents
Possibility of deterioration of one or the other, causing a warming sensation to your cherished whip, that wax just won't cure

Ceramic coating would help keep the heat away, to an extent.. but is the price of the coating worth the zero gain of running it in that position?
Bottom line, you do what you want. You ask for advice, we give our 'personal' versions of advice.

 

Seems to be just a bad idea. Just wanted to know how it weighs out. I guess everyone running this exhaust setup is risking their lives.

 

yet a lot of people do it and i haven't heard of a fatality from this to date. i used to have this "jdm-style" piping about 4 years ago.

 

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by llxzxll &raquo;</TD></TR><TR><TD CLASS="quote">yet a lot of people do it and i haven't heard of a fatality from this to date. i used to have this "jdm-style" piping about 4 years ago.</TD></TR></TABLE>

True, I've never heard of people dieing because of their exhaust setup. Wouldn't really call it "jdm-style". I was just wanted less bends in the piping.

 

if it was such a safety hazard do you think rsr gt spec exhausts would do this? i think not, its perfectly fine, and to whoever said that heating it up over and over will cause holes you're an idiot, metal such as aluminum has a fatigue life if its MOVED or distorted there is no motion with the gas tank so therefor no metal fatigue due to heat. I think its a bad idea for you to speak.

 

haha, finally. someone thats for it. I might just run it straight and see if I blow up.

 

you seriously have nothing to worry about, i used to run a semi open downpipe aka i had a b pipe but no muffler/axle back so it was right there and omg to my suprise nothing happened...

 

I just finished my straight back, under the gas tank exhaust system a couple weeks ago. I made a thread about it:
https://honda-tech.com/zerothread?id=1363278

Mine is pretty low, but I don't scrape that often. Plus my car is REALLY slammed. I'm gonna raise it maybe an inch today. I love my exhaust system...no cat or resonators, and it's not rediculously loud or obnoxious. I'm not one bit worried about the gas tank because I have more than enough clearance. If you really are worried, you could always wrap your piping with that exhaust heat wrap.

 

TopSecret- I seen your thread the other day . **** looks good.

I think i will run it straight, if I get paranoid I could use heat wrap. I also seen another setup where it was run straight but there was a heat sheild placed right below the gas tank. :

 

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by AnToNy &raquo;</TD></TR><TR><TD CLASS="quote">TopSecret- I seen your thread the other day . **** looks good.

I think i will run it straight, if I get paranoid I could use heat wrap. I also seen another setup where it was run straight but there was a heat sheild placed right below the gas tank. :</TD></TR></TABLE>

i was actually just going to mention a heat shield...
you can get some of that crazy exhaust tape they use on sport bikes and **** during races and just wrap your exhaust in that...

or some of that weird fiber heat absorber... kinda looks like insulation wrapped in aluminum...

 

Dont they make dynamat for heat resistance. I could stick it to the bottom of the tank and paint it black??

 

I JUST PUT A GHETTO HEAT SHIELD BUT ITS BEEN WORKING FOR A WHILE NOW

 

I still want my exhaust as far away from the gastank as I can.

Rearend collision, someone basically drives up your *** really well. This isn't exaclty unheard of. Your car is low, so a hit will jut the rear axle down, which in turn with jut the pipe up. I know in a few cases the pipe went into the gastank. I've seen some nasty crash reels, nothing like people burning.

I don't know, just something to think about, to be honest it's a 1/10000 chance, but I'm just not comfortable with it when it doesn't do **** for me anyway!?

CegX, damn that thing is low!

 

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by AnToNy &raquo;</TD></TR><TR><TD CLASS="quote">

True, I've never heard of people dieing because of their exhaust setup. Wouldn't really call it "jdm-style". I was just wanted less bends in the piping.</TD></TR></TABLE>

Lets go ahead and ask yourself? Are you going to do hardcore racing? Do you need that possible extra couple hp that you get from creating a straight through exhaust and possibly risking your life. Up to you. I would care less about those extra ponies and worrying about my car being gone or just having the exhaust get dented.

 

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by xSpanksx &raquo;</TD></TR><TR><TD CLASS="quote">

Lets go ahead and ask yourself? Are you going to do hardcore racing? Do you need that possible extra couple hp that you get from creating a straight through exhaust and possibly risking your life. Up to you. I would care less about those extra ponies and worrying about my car being gone or just having the exhaust get dented. </TD></TR></TABLE>

I asked myself these questions. And I came up with another question, what does it matter? I'm not asking preferences here.