Is Open Exhaust Bad For The Engine?

topless98gt · Nov 7, 2006

I have been running by car with no mufflers, just a Bassani O/R X Pipe, for the past few days, and it sounds wikkid, but very loud. Downside though, is that I lost a lot of low end torque (duh!) but I can rip the tires loose in 3rd gear at 65mph now! (mind you this is a stock NPI engine!!!)

Reason for the thread: Is it bad to get on it when the exhaust is open like this? I know that I have NO back pressure since it's just open pipes, but it's sooo much fun to gun it and listen to the scream in my ears!

Thanks.

whyask · Nov 7, 2006

Kinda curious as well Im running catted x with no mufflers and I love the sound... WHAT is the draw back... there's always a catch

40th GT · Nov 7, 2006

Straight pipes have no real detrimental effects to the engine, except for the loss of torque of course.

When you run open headers however, you may end up with warped valves.

topless98gt · Nov 7, 2006

40th GT said:
Straight pipes have no real detrimental effects to the engine, except for the loss of torque of course.

When you run open headers however, you may end up with warped valves.

Ok, cool, I heard that from somewhere but I didn't know if it had the same effect on straight pipes. Thanks!

stangGT97 · Nov 7, 2006

The crossover pipe pulls hot exhaust gasses away from the exhaust valves, and I believe you can overheat the valves if you run open headers or no manifolds at all (the latter being the worst)

jstreet0204 · Nov 7, 2006

open header won't hurt anything if they are long tubes

speedfreak98r · Nov 7, 2006

jstreet0204 said:
open header won't hurt anything if they are long tubes

Except for your ears

deftsound · Nov 7, 2006

sweet ive been running with open exhaust as well

propaganda382 · Nov 7, 2006

im running SLP LT's, o/r X, and LM 1 which is wicked loud by the way, no back pressure probs

propaganda382 · Nov 7, 2006

i have SLP LT's, o/r X, and the LM 1 Catback, no probs so far

topless98gt · Nov 7, 2006

propaganda382 said:
im running SLP LT's, o/r X, and LM 1 which is wicked loud by the way, no back pressure probs

My 'packs should be comin tomorrow I'm so friggen stoked!

scupking · Nov 7, 2006

topless98gt said:
My 'packs should be comin tomorrow I'm so friggen stoked!

I have packs coming in on Thursday, I also can't wait. Macs are coming off and packs are going on.

topless98gt · Nov 7, 2006

scupking said:
I have packs coming in on Thursday, I also can't wait. Macs are coming off and packs are going on.

Please let me know how it sounds with the Catted H...I might switch from X to catted X, or even to a catted H if you can prove to me it sounds good =)

scupking · Nov 7, 2006

topless98gt said:
Please let me know how it sounds with the Catted H...I might switch from X to catted X, or even to a catted H if you can prove to me it sounds good =)

I will post a clip sometime at the end of this week or on the weekend.

jasonh_86 · Nov 7, 2006

When I had my SLP LT's on without a midpipe or catback with my VT Stage 2's... that was pure sex

stangGT97 · Nov 7, 2006

jasonh_86 said:
When I had my SLP LT's on without a midpipe or catback with my VT Stage 2's... that was pure sex

until you heard "knock knock knock knock knock knock" bastids

RedDaemon · Nov 7, 2006

both of u need to get vids up when u get them installed

jasonh_86 · Nov 7, 2006

stangGT97 said:
until you heard "knock knock knock knock knock knock" bastids

I know!..

But the VT Stage 2's are going back in... getting it done by a reputable shop, the one that tuned the car. They're going to install and degree them and everything.. I hope to get 300rwhp

Going under the knife on December 18th.. so u guys can expect to see results by the 20th

jasonh_86 · Nov 7, 2006

Hear ye! Hear ye! I now present to you... Open SLP LT's and VT Stage 2's

http://s13.photobucket.com/albums/a267/jasonh_86/2002 Mustang GT/?action=view&current=MOV00265.flv

It was idling at 1000rpm at the time of this video, but you can get an idea of how it sounded.. But the video doesn't capture it at all. I could feel the car inside my chest

superstang01 · Nov 7, 2006

scupking said:
I will post a clip sometime at the end of this week or on the weekend.

OOOOO you guys just wait ,its such a nice sound.....wait till you get in between two bridges or under an overpass and step on it....OMG ......it makes me shivver when i hear it!!!!

Is Open Exhaust Bad For The Engine?

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