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Is Engine Revving Bad For Your Engine? 

 

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 Post subject: Is Engine Revving Bad For Your Engine?
Posted: Sun Sep 14, 2008 12:42 pm 
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Is it? Just revving it in nutrel?

 

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Posted: Sun Sep 14, 2008 1:04 pm 
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:? What a strange question haha. No it's not bad for the engine to rev in neutral. Obviously revving right up to redline and engine speed cut for extended periods wouldn't be doing the engine any favours, not to mention looking like a bit of an ar-tard if you're trying to get attention.
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Posted: Sun Sep 14, 2008 1:27 pm 
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haha nah I ment for just the occasional rev in the shed either by me or Dad. I kinda thought an engine had to be under presure to perform, but I suppose a dyno doesnt put it under much pressure. Does it?

Either way, thanks for the answer.

 

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Posted: Sun Sep 14, 2008 1:30 pm 
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course a dyno puts an engine under load.

Otherwise the thing would just redline in a few seconds.

The whole point of a dyno is to make it like driving on a road except being able to record the power and its all safe.

 

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Posted: Sun Sep 14, 2008 1:49 pm 
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SgtBourne wrote:
course a dyno puts an engine under load.

Otherwise the thing would just redline in a few seconds.

The whole point of a dyno is to make it like driving on a road except being able to record the power and its all safe.


yeah thinking over it, it would have to put it under pressure.

Has there ever been a case where a car on a dyno has somehow grip and taken off? lol

 

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Posted: Sun Sep 14, 2008 2:05 pm 
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Thats why they strap cars to dyno's.

free revving an engine can be bad, a short burst won't do anything bad - but look at it this way, compare yourself running flatout up a hill and flat out down a hill. Doesn't take much for you to eat s**t running flatout down a hill.

 

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Posted: Sun Sep 14, 2008 3:03 pm 
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haha wtf chance does a strap have against 400rwkws :lol:

 

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Posted: Sun Sep 14, 2008 3:34 pm 
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The straps work well. The idea is the car has no momentum just spinning the wheels on the rollers. no momentum = no movement, The straps ensure that stays that way. If the car gets a chance to move it'll of course pick up momentum and get moving quickly.

The straps are also there to help with tyre grip. not enough load on the tyres and they'll spin up on the rollers themselves, resulting in wasted rubber, and a lower reading.

There's a vid on youtube somewhere, showing a drag car getting loose on a dyno, and taking off into the crowd. Messy.

 

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Posted: Sun Sep 14, 2008 3:37 pm 
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Gaz wrote:
Thats why they strap cars to dyno's.

free revving an engine can be bad, a short burst won't do anything bad - but look at it this way, compare yourself running flatout up a hill and flat out down a hill. Doesn't take much for you to eat s**t running flatout down a hill.


+1

 

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Posted: Sun Sep 14, 2008 6:14 pm 
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cars coming off dynos is a rather boring thing to see. if your unlucky you'll break something in the driveline. other then that, the ones i've have simply stalled the engine.

 

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Posted: Sun Sep 14, 2008 6:41 pm 
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Yeah pretty boring.

http://www.youtube.com/watch?v=tE7doDm25Ek
http://www.youtube.com/watch?v=p4l-Dl73TpM


These two are just funny
http://www.youtube.com/watch?v=L-8xqD-Uaq8
http://www.youtube.com/watch?v=GSl-jSfnbxY

 

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Posted: Sun Sep 14, 2008 7:04 pm 
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let it warm up a smidge first before you go reving it to hard

 

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Posted: Sun Sep 14, 2008 7:04 pm 
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:lol: This is why they use straps to hold down the cars :lol:

http://www.youtube.com/watch?v=W_6OG4xQ ... re=related

Enjoy !!!

 

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Posted: Sun Sep 14, 2008 7:33 pm 
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lol 400rwkw, is nothing strap will hold it fine, i know of a couple of F6's that go on dyno's a fair bit and put out 400 at the rear.

 

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Posted: Sun Sep 14, 2008 10:40 pm 
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8-) Hey Stalker - nice pic man

 

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