okay i unbolted the exhaust from the axle...

[615-Cb7]

will this put stress on the motor even though there is alot of pipe..my muffler unbolts at the rear axle an then at the cat but i unbolted it at the axle...but anyways is this gonna put stress on the motor?

[TypeG]

no stress, just a loud sound. later.

[93accordexcoupe]

why did u unbolt it?

[n4red]

i am with 93accord on this one, why would you do this? there is no benefit to this if anything your car just became loud as hell.

[RacH22]

Been watching too many fake videos saying "unbolted exhaust"...

Depending on the weather outside, this could cause serious damage to the valvetrain. While cold air can and does travel up the exhaust system when the car is shut off, by the time it makes it to the head, the valvetrain has started cooling to the point the air outside has little effect on it.. The shorter the exhaust, the less time it takes it to get there, which could have adverse effects on the parts...Just my .02, bolt your exhaust back up.

[deevergote]

I never considered that before... interesting!

[quickangel93]

theres no reason to unbolt your exhaust.

well now you could tell your friends that you lost 50 hp.

[RacH22]

theres no reason to unbolt your exhaust.

well now you could tell your friends that you lost 50 hp.

I wouldn't go as far as to say lost Horsepower, more along the lines of transfered Torque into Horsepower... They generally don't lose the power, just move it elsewhere.. It is enough to change the feel of the power curve.. But I wouldn't be able to tollerate the volume, nor want to try my luck with the police, just for the effect it has on power placement...

[quickangel93]

well once i was racing a golf with my stock rusted system, and all of the sudden half of the exhaust drops, and pretty much half of my torque was all gone.

[RacH22]

well once i was racing a golf with my stock rusted system, and all of the sudden half of the exhaust drops, and pretty much half of my torque was all gone.

Yea, it can sometimes be a pretty dramatic change... In most of my experiance, gains could be felt in the mid-high power range, seemingly cclimbing both in RPM's and MPH's far faster than normal, but not feeling as torque happy like usual... Give and Take kinda thing, but either way, its definately not worth doing haha...

[615-Cb7]

well i actually unbolted it to try to see if my friends axle back would match up to my accord and sort of liked the sound of it off cause my car has a long ass resonator in it..bought the car that way..but i drove it around the block and noticed it sort of drag in low rpm and it got annoying cause it was dronin when i was cruisin...long story short i put it on and im now savin up for a nice exhaust..no fart can..

[615-Cb7]

Been watching too many fake videos saying "unbolted exhaust"...

Depending on the weather outside, this could cause serious damage to the valvetrain. While cold air can and does travel up the exhaust system when the car is shut off, by the time it makes it to the head, the valvetrain has started cooling to the point the air outside has little effect on it.. The shorter the exhaust, the less time it takes it to get there, which could have adverse effects on the parts...Just my .02, bolt your exhaust back up.

well here in tennessee its still 80 degress..and i was tryin out my friends axle back..and i was askin because my dad said that it could burn up your valves over time ..but idk im jus a kid lol

[DjM_coupe]

there is a reason why you have a muffler......its called backpressure

[615-Cb7]

yea i kno lol

[blackice]

there is a reason why you have a muffler......its called backpressure

Backpressure is bad, exhaust velocity is what you want. Piping that is too big can cause a drop in power because the fumes aren't being scavenged as well, i.e. there is not enough velocity to prevent reversion or disruption of flow. Having a piping size too small just restricts flow and also loses power. Maintaining a balance between velocity and having a non restrictive exhaust is key.