Exhaust outlet in FRONT of rear wheel

[TurboSandman]

I must be missing something here, but it seems that it would save a lot of pipe to exit the exhaust in front of the rear wheel. Presumed benefits would be lower back pressure due to shorter overall length as well as fewer bends in the pipe. This should promote lower EGT's and higher horsepower (Hey, maybe I should be writing for Banks!).



Is there a good reason this is not done (I would hate to smoke myself) or does it just get the snail darter crowd's panties in a bunch?

 

[DieselB59]

I did it. I had it for just over a year, and changed it to twin stacks for two reasons. One was the unreasonable drone in the cab from the very loud exhaust that the stacks don't have... . and the second was having to clean the one rear wheel three times as often as the rest of them.

 

[TurboSandman]

DieselB59

Good reasons; I guess I should have done a search first but just opened my yap instead. Thanks for the quick reply.

 

[DieselB59]

A while back, Bigsaint posted my 6" side exhaust pics on an exhaust pics post. I don't know if it's still in the archives, but you can certainly try. By the way, I didn't use a muffler, and haven't for five years now.

 

[Bigsaint]

I don't know if those pics. are still viewable, I posted them on Photopoint and that site is down .



I can tell you this, Chris had that huge 6" exhaust and it was very impressive, to say the least. So much so that we were going to configure it to my truck, 'till we decided on the single stack.



Scott W.

 

[MUDDY]

i ALWAYS run my pipe ahead of the rear tire. less pipe and bends. less backpressure. also its not back there in the way where you can back up against something like a rock or other obstical off road and push the pipe forward causing damage.

 

[Royk]

You may have heard...

the little story about certain tires on certain Fords failing and being recalled. According to a local tire guy I was chatting with one day, the tires that were failing were the passenger side rears. Reason: they were getting excessively hot from the placement of the exhaust right ahead of the tire on that model truck. And this guy sold Cooper's, not Firestone. I don't know if its true or not, but it sure sounds logical to me.

 

[MCummings]

http://mbmp.rcwing.com/trucks.html



Exhaust in front of wheel.



One reason not to do it,, Dirties up $174 clear Euro style tailights, from the INSIDE,, DOH!!



Reason to do it,, IT's cool, it's loud, TONS of Turbo Noise, High flow, It's chaeper than going ALL the way to the back, it's cool, and, lots of turbo noise.



Be forewarned though, the drone is purty bad on the highway, and anywhere else. Get a radio, or be sure to have the infinity system. D-R-O-N-E Like this,, BURRRRRRRRRRRRRRRRRRRRRR



When you shift,,(from 2nd gear to cruising speed),,, Like this,, BRRAAWWWWW,, PSHHHH,, BRAWWWWWW, PSHHHH,, BRAWWWWW,,PSHHH,, BRAWWWWRRRRRRRRRRRRRRRRRRRRRRRRRRRRRR (Really loud)



MerrickNJr



P. S. Hope this helps. oh yah, can you tell I'm under 20yrs old ?

 

[DieselB59]

Tell the tire guy to go back to school for an education. Diesel exhaust coming out of the pipe is about eight times cooler than that of the gas engine exhaust that he's talking about. Worse yet, the heat wouldn't affect the rear tire anyway. The idiots owning the trucks should be checking their tire pressure instead of driving around on their cell phones with less than 20 psi of air in the tires. About the euro taillights... ... put a downturn tip on that exhaust and the taillight problem will be solved.

 

[TurboSandman]

Cool truck pics, MCummings; I may have to do it after all. Now if I could only rig a SELECTIVE dual exhaust (one outlet each side) for those times I need to BLOW SMOKE out the other side of my

..... differential.



370s should be here any day now.



Thanks for the replies.

 

[777 MECHANIC]

DRONE

Just wondering if you guys that get the drone are using a muffler and resonator or neither?

 

[redneckdr]

drone

777, the drone occurs with a variety of systems. some of the systems with mufflers will have the drone, some don't. a piece of epiflex at the end of the downpipe apparently cuts down on the drone considerably. i have a LONG straight thru truck muffler on mine. no drone. i've heard that a lot of the systems with shorter straight thru mufflers will drone. adding a resonator apparently helps considerably with drone on those muffled systems with drone.

 

[GFoley]

The Ford trucke mentioned earlier in the thread were the 97 models. This was the first year of the current F150 body sytle.

Ford apparently found some reason to go back to behind the rear wheel, this appears to rule out a corporate concern about it being a real cost saving measure.

 

[Mark_Kendrick]

I'm gonna dump mine b4 the wheel when I do the exhaust in a month or 2. If I don't like it I'll buy a tailpipe.

 

[Todd G]

Someone a while back was going to try to build a exhaust that went over the frame where the downpipe is and went between the frame and the rocker-panel then exited out in front of the rear wheel. That sure would be a cool setup.

 

[Mark_Kendrick]

Maybe a big polished side pipe. . way

 

[Prostock]

Originally posted by Bigsaint

I don't know if those pics. are still viewable, I posted them on Photopoint and that site is down .







Scott W.

Just an FYI, they're not down, they're gone. They got everyone to pay them for their service, and then went bankrupt.



I hope you have backups of your photo's.

 

[Steve Roseman]

Originally posted by MCummings



When you shift,,(from 2nd gear to cruising speed),,, Like this,, BRRAAWWWWW,, PSHHHH,, BRAWWWWWW, PSHHHH,, BRAWWWWW,,PSHHH,, BRAWWWWRRRRRRRRRRRRRRRRRRRRRRRRRRRRRR (Really loud)



MerrickNJr

How'd that go again

 

[MCummings]

Originally posted by GFoley

The Ford trucke mentioned earlier in the thread were the 97 models. This was the first year of the current F150 body sytle.

Ford apparently found some reason to go back to behind the rear wheel, this appears to rule out a corporate concern about it being a real cost saving measure.

I heard from a reliable source that the reason Ford stopped putting the Exhaust in front of wheel was because in colder, icy climates the exhaust would heat up the wheel, the discs, the calipers, EVERYTHING on that side of the axle, and when the truck was stopped the warm/hot brake system would melt any water it came in contact with, then as it cooled down the brake sustem would freeze up, or, ice over.

That phenomena (sp?) gave Ford a hard lessoned learned. THere were overwhelming amounts of people returning to Ford Service Dealers with messed up braking systems as a direct result of the Exhaust melting the ice, then water getting in every nook and cranny, then freezing.



This happened only in climates that had freezing weather (No duh).



Maybe this was the reason Ford moved the exhaust back. ?



MerrickNJr



EDIT: Ford Warrentied all trucks that came in with brake problems.

 

[MCummings]

Originally posted by Steve Roseman

How'd that go again

Um,,, BRAAAWWWWWW,, PPPSSHHHHH. (Pedestrians covering ears) BRRAAWWWWWWWRRR,,, PPPSSHHHH (Other commuters rolling up windows, and giving dirty looks) BRRRAAAWWWWWRRRRRRR (Anybody near your exhaust telling you your #1)



MerrickNJr