reving up before shutdown?!

[recklus]

guys ano comment nyo dito? bad, good or no effect on the engine?

ako kasi, i just simply turn off the engine at idle, dami ko nakikita drivers reving up the engine before shutting down. i think its useless, oil just settles down the sump when engine shuts down, gastos pa sa gas when you rev up.

anyone who has a technical point of view?

[OTEP]

That is a stupid practice. Period. Kailangan pa ba ipaliwanag ito? hehehe.

[GerardTagayty]

yabang lang cguro yun nag rerev before shutting down. sus. hehehe

[swifty]

wala kwenta..

waste of gas.

[kinyo]

old school habit of old school drivers with old school carbureted engines ... the objective is to fill the fuel chamber of the carb before shutdown, presumably makes the next start easier/faster ... it may have worked for some ancient cars but i'm sure it was unnecessary for the later carbureted engines, e.g., our 1955 chevy somehow benefitted from it but the 1982 colt mirage didn't need it

those who acquired the rev-before-shutdown habit also have the tendency of doing the pump-gas pedal-before-starting habit

[the_wildthing]

This is useless. Unfortunately, old habits die hard and my Dad still does it kahit na nasabihan ko na ng ilang beses.

Yun namang pump-gas-before-start used to be the instructions in manuals of older cars with carbs. Sa XL90 twice pa nga.

[j_avonni]

A waste of fuel!:aray:

[Picard]

Waste of gas lang yan. You might want to read this as well: http://tsikot.yehey.com/forums/showthread.php?t=31255

[CVT]

old school habit of old school drivers with old school carbureted engines ... the objective is to fill the fuel chamber of the carb before shutdown, presumably makes the next start easier/faster ... it may have worked for some ancient cars but i'm sure it was unnecessary for the later carbureted engines, e.g., our 1955 chevy somehow benefitted from it but the 1982 colt mirage didn't need it

those who acquired the rev-before-shutdown habit also have the tendency of doing the pump-gas pedal-before-starting habit

Soooo true!!!

Old habits never die.......

:starwars:

[IMm29]

Old skul practice before shutting down yan. No longer applicable for the current gen of cars we have.

[edalbau]

Yun kasi ang itinuro ng mag ninuno natin nuong panahon ng digmaang pandaigdig... hehehe....

[yebo]

only works for old carb engines.

it is also the best way to damage (like go "BOOOM!") the catalytic converter. unburnt gasoline accumulates int he cat and the next time you start the engine it can ignite and cause an explosion. it does not happen all the time but no one will ever know when one will win the lotto.

[GaLynxmo]

old school habit of old school drivers ......
those who acquired the rev-before-shutdown habit also have the tendency of doing the pump-gas pedal-before-starting habit

yap, nayari mo ako, but I couldn't agree more. Talagang mahirap din maalis kahit alam mo. it takes a while.

[Radical!]

Just like everyone said, reving the engine before shutting off the engine is a waste of fuel. This is also related to the old school practice of 'warming up the engine' before driving off. Waste of fuel...

[vhenok]

total waste of fuel and totally old skul ...madalas ko mapansin to dun sa mga vehicles na naka-mufflers na maiingay (all noise!), talagang todo rev pa....heheh

tsk tsk tsk..

[XTO]

ingay lang at usok ang idudulot nun. kung extra charge for the next start ang kailangan ng batt ang purpose? idle it for a few minutes with all the accessories, lights and a/c off and it's done.

[cutedoc]

napapansin ko nga ito lalo na yung makalumang driver, rebolusyon muna nila bago patayin makina... sayang gas

[yebo]

nung nakatira pa kami sa apartment meron kami neighbor kasing laki ng ego nya yung exhaust ng car nya, kasya siguro sya sa loob pag pinilit (e wala pa sya 5ft, bakit ganun karamihan ng maliliit na tao laki ng ego? pag pandak mayabang?) dadating yun gabi na lagi, nagigising kami lagi at tapat ng room namin nagpa-park. at mag-high idle muna siya ng 5 minutes tapos todo rebolusyon bago i-off ang engine. pag andun ako pinagsasabihan ko (politely, like "brod wag naman masyado rebulosyon nagigising babay namin, please lang) pero wa epek tuloy pa din sa kalokohan nya ang ogag. minsan dumating sya mga 11pm na at andun yung isang neighbor namin na astig. mas matangkad pa sa akin yun e, 5-11 siguro at nag-gy-gym. nabwiset siguro hinamon sya ng suntukan. pumalag, e di pinahalik sa kanya yung bumper ng car nya. mula nuon sa labas na nagpapark ang mokong.

[DacoTyan]

I would usually pump the pedal twice before starting a car with carburators but I never rev the engine before shutting it down. The rationale I heard for revving before shutting from old timers is to give the battery an extra charge.

I'll definitely rev my engines if my car was, let's say...., a F430, or a Gallardo, or a 427 Cobra, or...

[2Dmax]

sa mga lumang sasakyan hindi natin sila masisisi. they have NON-IC type of charging system integrated in their alternator. so kailangan nilang mag-rev before patayin ang makina so hindi mahirap mag-crank ulit ng engine. old practice lang talaga ung pagrerev..