throwin sparks out exhaust
Thread Starter
Staging Lane
Joined: Jun 2007
Posts: 69
Likes: 0
From: Ocala, FL
throwin sparks out exhaust is this normal or should I be concerned? I was uh, racing this weekend and it was in a dark area and ppl said I was spitting some sparks out of my exhaust? I have no cats btw.
official btw I'm in the mid 12's
official btw I'm in the mid 12's
Were you on the brakes? Are you sure your y pipe didnt hit the ground? It doesnt sound right. Sometimes when i hit my brakes my car nosedives and scrapes sometimes. When I do scrape I cant hear it in the car its too loud and the wind blowing and stuff
Originally Posted by speed_demon24
If you are throwing sparks out the exhaust that means you are melting your pistons and if you were melting your pistons your motor woulda went boom.
any chance of getting a video of this? Is it doing it at idle? Any metalic sounds coming from the engine? vibration? done any recent engine work? More info needed...
Thread Starter
Staging Lane
Joined: Jun 2007
Posts: 69
Likes: 0
From: Ocala, FL
No recent engine work other than a tranny rebuild in oct. No weird engine sounds or vibrations runs good except the cold idle choppy loop... Sadly no video either 
I will let someone else run it and I will watch it I guess.
O ya I wasn't on the brakes, about half through the run doing like 90ish.
I will let someone else run it and I will watch it I guess.
O ya I wasn't on the brakes, about half through the run doing like 90ish.
I have noticed this before with power adder cars when under extreme load at upper RPM. More than once the sparks preceded heads gasket failure. I thought they may be due to portions of the gasket sealing ring being eroded and passed out the exhaust. Just my own guess.
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TECH Addict
Joined: Dec 2001
Posts: 2,907
Likes: 1
From: Bergen County, NJ
It's way too premature to draw any conclusions....I have seen sparks out the exhaust for many reasons - burning carbon off the exhaust manifolds, muffler material leeting loose, old air cleaners flaking into the intake, etc., etc. If you're not getting ping or knock retard I doubt that you are harming the pistons.
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ive been told my car has shot sparks out the cutouts. I think it was simply carbon coming out. My car has held up for countless miles, WOT romps, and dyno pulls since then.
I have a friend with a WS6 lid, guttet cats, slp y, and gmmg and while i was racing him a friend tailing us said he saw his exhaust pipe glow. Pretty much stock and his car runs great.
Are you sure its sparks coming out of the exhaust? Ive heard of people with gutted/no cats and a free flowing exhaust shoot flames out their tailpipes on shifts. If I remember, the consensus was that is was the unburnt fuel from between shifts being ignited. Ill try and find the thread.
Edit: Heres one of the threads about it
https://ls1tech.com/forums/showthrea...t=flamethrower
Id say have someone record it on video and see whats really happening.
Edit: Heres one of the threads about it
https://ls1tech.com/forums/showthrea...t=flamethrower
Id say have someone record it on video and see whats really happening.
Last edited by DropTopBird; Aug 14, 2007 at 11:15 PM.
Thread Starter
Staging Lane
Joined: Jun 2007
Posts: 69
Likes: 0
From: Ocala, FL
I asked again and they arn't too bright lol, they said they were orange though and fell on the ground. I'm wondering more of a bottoming out of the exhaust isse cuz mine hangs hella low and i've already ripped it off once on a speed bump... plus it was on the incline of a small hill.
