AM I HURTING HER? emergency, kinda

Hey all, im stuck at work right now and i need to get home stat!. but ive got the mufflers off my bike, will i hurt it if i ride home with them off,, thanks please reply fast!!

 

No I don't think so it's just going to be very fuckin loud!! lol

 

No it just sounds amazing...I rode mine for over a week with no exhaust while waiting for my Leo Vince's to arrive.

 

I realize this is a little late of a response, but it is possible to hurt the engine. I don't know anyone who has, but it is possible.

 

it wont hurt your bike. it would be the same as running with an after market exhaust. there is zero restriction in most after market pipes with the baffles out and those do not hurt your engine right? why should it be any different with no exhaust on at all? as long as you still have the stock header on you will be fine. with the stock 6th gen header you have smaller primaries and 2 cats. this will give more than enough back pressure to prevent you from leaning out too far. i wouldnt go forever with out a proper tune, but a few days wont hurt anything.

 

I think it actually can hurt the bike....if the air cools too fast it can bend the valves....I kinda remember my auto shop teacher telling us that. ..but still a little foggy..(24 years ago).. if the weather is nice it aint gonna hurt it..

 

Don't do it! I just had this happen to me and it cost me a set of plugs @ $28 ea. The o2 sensors told the ecm to pour the gas in and WHAMO, no run, no start, no spark. That's what the tech told me after he got it back up and running.:crazy:

 

disclaimer: i have no engineering degree........however i do believe it might be possible to damage the pistons/valves because of excessively lean condition and consequent overheating.

 

If its cold outside you can hurt thevalves as mentioned above. That is a fact that I know. The other thing said about the plugs sounds about right also. Hope you made it home, let us know.

 

this is an issue with a carb'd bike with out cats... but we are not dealing with those here.... as far as the o2's telling the ecu to dump more gas in there? hmmmm, just get o2 eliminators.

 

Hey all, thanks for the input, i made it home alright.
Wow the bike sounds so amazing!
I feel i lost alot of low end power tho.
I do have o2 eliminators in (33 ohm resistors).

i find it hard to believe that this would cause valves to cool too fast, the full headers are still on and the cats, so there should be plenty of back pressure, yea it will be running richer but not that much.

i will probibly be running like this for the next couple days until i can get my mufflers welded.

NOTE TO ALL** using a dremel to cut the tips off mufflers is futile, welt through 5 blates cutting one tip! needless to say i just cut the entire ends off in the end and pulled the baffles out.

 

awesome i did the exact samething

 

I dont think its a prob if you have that much pipe still on there, I misunderstood. Ride safe ( and loud )

 

its all good.
bikes running good and loud
i will be buying a PCIII when i get my tax return, wahoo!

and i will put my pipes on, they will just be hollow

 

Couple of thing's........
For cold air to warp the valves the air would have to travel past the cats, and up the pipes, reaching the valves before they cooled. This is assuming the air did not absorb any heat on its journey up the pipes.

300 - as fas as I can tell the O2 sensors only come into play at a narrow RPM range and then only to lean out the mixture in the that range. Its not like on a car with a mass air sensor and O2 sensors that are active all the time. I would be interested to see how they could cause the engine to dump enough gas to foul the plugs. With the cat in place the flow should have been aprox the same as a slip on exhaust.

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