I know, I know this is a stupid question... My Dad usually rev's his engine in order to warm the engine faster because he is in a hurry to get to work. He presses the gas like every 10 seconds until it is warm and it sounds like it is reving to about 2500-4000 RPMS!

I feel that is a really bad thing to do to the motor. Will this cause any damage to the motor? (Since the motor is cold.) If so, what exactly will be damaged? So I can explain it to him before he ruins his motor.

The car is a 96 Civic Coupe EX Manual. Stock of course


Help me out guys!

 

its not good to rev high with cold engine,its better to leave it itself to warmup

 

This is just me, but I don't get the rpms over 3000 if I have to put my foot on the gas. Reason it isnt a good idea when you initially start the car is because the oil is thicker and wont lubricate the engine as fast. Reving the car will build oil pressure faster, so its not entirely bad, just that initial start up is always ruff on the engine and slower when cold. He shouldnt be revving into vtec at all though. Bad for the valve train.

 

Revving is extremeley bad when done immediately after starting since no oil is available then. And once oil pressure HAS been built up, it is STILL bad to rev a cold engine. One of the BIG reasons for this is the fact that a cold engine is 'looser' than one that is warmed up. So what should be done? If the engine uses stock-type cast pistons, it is best to warm up an engine by driving gently until the engine is warm. But if the pistons are forged, it is better to let the engine warm up by idling it than driving away or revving it.

 

Your engine will definitely last longer if you let your car idle for 3 or 4 minutes before you drive it, regardless of how cold it is, the cold just makes it even worst.

 

Thanks for the info guys!

Anyone else?

 

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by You_Get_Vapors &raquo;</TD></TR><TR><TD CLASS="quote"> He shouldnt be revving into vtec at all though. Bad for the valve train.</TD></TR></TABLE>

Vtec will not engage untill the vehicle is at operating temp.... but i know what you mean.

 

I meant into that RPM range.