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Old 10-19-2004, 09:38 PM
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Default E-cutout

I have an electric cutout and i was wondering if running open exaust all the time is bad for the Engine...Someone told me its bad for the vavles ...is this true?? THX
Old 10-19-2004, 09:41 PM
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I wouldn't do it unless I was racing or showing off. It has little back pressure on the engine and you float the valves easier I think. Why would you do it all the time?
Old 10-19-2004, 09:48 PM
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I had an open pipe on my truck for a few months and it didn't hurt anything.
Old 10-19-2004, 09:53 PM
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If you still had cat's on you probably still had some back pressure. If your e cutout is after the cats you probably would be OK but I don't see the point of running with it open all the time.
Old 10-19-2004, 09:56 PM
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mines open all the time....been that way for a year or so....car has 100k miles, still pulls like a raped ape

oh ya, the cutout dynoed 15rwhp over slomaster exhaust
Old 10-20-2004, 09:42 AM
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Don't be a wuss, leave it open. It's not going to hurt a damn thing. Now if the wife threatens to never ride in your car again unless you close it, still leave it open. Keeps whiney chicks out.
Old 10-20-2004, 11:47 AM
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well i still have my cats, and i caught a bunch of **** from my father when i bought this car, but once he saw and heard how my e-cut out worked everytime he rides in it he leaves it open and he loves the way it sounds...I got a big kick out of that! Anyway there seems to be an issue of having back pressure vs not. I've heard the LS1 likes some backpressure so should i just put the plate on and get a loudmouth??? THX!
Old 10-20-2004, 01:35 PM
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Originally Posted by TA TED
Don't be a wuss, leave it open. It's not going to hurt a damn thing. Now if the wife threatens to never ride in your car again unless you close it, still leave it open. Keeps whiney chicks out.
Again.
Old 10-20-2004, 10:34 PM
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Don't worry about hurting anything, cause you won't. Open or close based on what you prefer.
Old 10-20-2004, 10:58 PM
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Originally Posted by TA TED
Don't be a wuss, leave it open. It's not going to hurt a damn thing. Now if the wife threatens to never ride in your car again unless you close it, still leave it open. Keeps whiney chicks out.
LOL That's true.
Old 10-20-2004, 11:05 PM
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Well, when you dont have any backpressure, you will usually lose some torque... but the power gains make the cutout worth it.
Old 10-21-2004, 12:06 PM
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my buddy has been cruising around with his open for a few weeks, with headers and no cats. he hasnt seen any problems, except a cop or two giving him the evil eye.
Old 10-21-2004, 02:23 PM
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My friend has had his cutout open for several months since he installed his headers. I think its only bad if cold air were to get back in the motor. If you have an electric cutout why would you have to cap it? Do you not have it hooked up?
Old 10-21-2004, 02:26 PM
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Alot of my freinds run open cutouts without any problems. A couple for over 2 years now. I am going to switch my exaust to 2-3" street pro electric cutouts.
Old 10-22-2004, 09:49 AM
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Originally Posted by Tiger2o69
My friend has had his cutout open for several months since he installed his headers. I think its only bad if cold air were to get back in the motor. If you have an electric cutout why would you have to cap it? Do you not have it hooked up?
Exactly, I have it disconnected right now b/c the hinge flap is loose and it vibrates and rattles untill i can tighten it...




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