Do you rev before turning off?
11-23-2009, 05:09 PM
#53
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For what it's worth, I think this the most rational statement on the whole thread! If you rev for 10 seconds, you are forcing more fuel in until you turn off the key. So, whether you rev for 1 second or 10, the fuel is not going to stop going in until you turn the car off. What's the point in reving for a long period of time? Also, the person who warms the car up completely before driving it - what's the rationale for that - do you own stock in oil companies?
11-24-2009, 06:09 AM
#55
Intuitively I can't take issue with the rev for 1 second rather than 10 mindset. All you're really trying to do is produce enough centripetal force to exorcise the excess fuel, so in that light a 'blip' would seem to be just as good. When I took delivery of my '8 I was fortunate to have the best vehicle walkthru I've ever had from a truly experienced rotary tech. He told me to rev to 3k and hold for 10 seconds when cold. I've always done so and never flooded, so will continue to.
But do whatever you feel prudent.
I do agree that warming it up prior to driving is a total waste of fuel and time.
Originally Posted by 8upbad
^^ agreed. I have only had a rotary for a few months but reving for 10 seconds seem like 9 seconds of overkill.
But do whatever you feel prudent.
I do agree that warming it up prior to driving is a total waste of fuel and time.
Originally Posted by 8upbad
^^ agreed. I have only had a rotary for a few months but reving for 10 seconds seem like 9 seconds of overkill.
For what it's worth, I think this the most rational statement on the whole thread! If you rev for 10 seconds, you are forcing more fuel in until you turn off the key. So, whether you rev for 1 second or 10, the fuel is not going to stop going in until you turn the car off. What's the point in reving for a long period of time? Also, the person who warms the car up completely before driving it - what's the rationale for that - do you own stock in oil companies?
11-24-2009, 09:46 AM
#56
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For what it's worth, I think this the most rational statement on the whole thread! If you rev for 10 seconds, you are forcing more fuel in until you turn off the key. So, whether you rev for 1 second or 10, the fuel is not going to stop going in until you turn the car off. What's the point in reving for a long period of time?
-build up a less diluted oil film on the rotor housings
-warm the housings to some degree
In any case, in over 5 years I've only flooded my '04 once and that was due to moving the car cold several times in one day to access yard equipment, etc..
I'd say the procedure is good insurance, but not vital.
11-24-2009, 09:00 PM
#57
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IMHO, revving for 10 seconds is to blow off the crud that built up on the spark plugs during the five minutes of idling.
Remember - the short trip procedure is to idle for five minutes (until the temp gauge reaches its normal position), rev at 3k for 10 seconds, return to idle, then shut down.
Ken
Remember - the short trip procedure is to idle for five minutes (until the temp gauge reaches its normal position), rev at 3k for 10 seconds, return to idle, then shut down.
Ken
11-26-2009, 08:46 AM
#59
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I must say that I've been extremely fortunate with my 2006 AT. I've had it for 3 years, and often have moved the car very short distances and shut it down cold without reving, and it's so far always started up immediately. It has 21,000 miles, original plugs/coils, no premix, and its never flooded! It's strange how some RX8's flood and others don't.
11-26-2009, 08:58 AM
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I must say that I've been extremely fortunate with my 2006 AT. I've had it for 3 years, and often have moved the car very short distances and shut it down cold without reving, and it's so far always started up immediately. It has 21,000 miles, original plugs/coils, no premix, and its never flooded! It's strange how some RX8's flood and others don't.
2006+ they come with updated software, faster starter and stronger battery which prevent flooding.
11-26-2009, 02:16 PM
#62
Momentum Keeps Me Going
Oh contraire - my 1st of the boat July '03 (called an '04) has the large battery and fast starter, plus updated ECU programming. Never flooded, never reved before shutoff, always driven away with care with no extended idle warmup. I simply asked Mazda and my car was made like new models were born.
11-30-2009, 01:24 PM
#63
is adjusting valve lash
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^^+1
reving is pointless.
as per ovvner's manual's procedure, holding a 3k rev is done for 10 secs... and the reason it ever gets lost in translation is from losing the manual.
thinking of emissions, that procedure is done only to aid jet-air and as insurance for saving ur cat. period.
and there is also no reason to "idle" to cool off.
the coolant gets boiled from the block and triggers fans to come on even after ignition is off...
-so instead, just drive the last mile before home using high gears or treat it like a cool-off lap.
(my practice is using a home fan on a timer in front of vehicle, also as to prolong battery life)
i agree on others that also do quite the opposite...
its simple, really. just ask urself these questions
- does anyone in their right mind rev a cold, lubrication lacking engine?
-having modern electronic throttle, do u think u'll get throttle icing/sticking if u don't rev upon shut dovvn?
i've yet to flood my car and have done quite the opposite. even after starting my car to move a feet, i shut the car off immediately after jet-air operation stops.
post up some video clips of all the race cars that start their car, vvarm up and rev as a display for an audience, then blip the throttle as they kill the ignition, then i'll do the same.
but as even the rotary race cars at seven stock don't need to, i'm not doing it as vvell.
any other reason is gonna be urban myth on this car for me... sorry, my 2c.
reving is pointless.
as per ovvner's manual's procedure, holding a 3k rev is done for 10 secs... and the reason it ever gets lost in translation is from losing the manual.
thinking of emissions, that procedure is done only to aid jet-air and as insurance for saving ur cat. period.
and there is also no reason to "idle" to cool off.
the coolant gets boiled from the block and triggers fans to come on even after ignition is off...
-so instead, just drive the last mile before home using high gears or treat it like a cool-off lap.
(my practice is using a home fan on a timer in front of vehicle, also as to prolong battery life)
i agree on others that also do quite the opposite...
its simple, really. just ask urself these questions
- does anyone in their right mind rev a cold, lubrication lacking engine?
-having modern electronic throttle, do u think u'll get throttle icing/sticking if u don't rev upon shut dovvn?
i've yet to flood my car and have done quite the opposite. even after starting my car to move a feet, i shut the car off immediately after jet-air operation stops.
post up some video clips of all the race cars that start their car, vvarm up and rev as a display for an audience, then blip the throttle as they kill the ignition, then i'll do the same.
but as even the rotary race cars at seven stock don't need to, i'm not doing it as vvell.
any other reason is gonna be urban myth on this car for me... sorry, my 2c.
11-30-2009, 01:31 PM
#64
is adjusting valve lash
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Oh contraire - my 1st of the boat July '03 (called an '04) has the large battery and fast starter, plus updated ECU programming. Never flooded, never reved before shutoff, always driven away with care with no extended idle warmup. I simply asked Mazda and my car was made like new models were born.
if u've got the luxury of garaging ur car, this may help in
-keeping a cooler garage
-prolonging battery/coolant fans life
peace
12-01-2009, 08:16 PM
#65
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as per ovvner's manual's procedure, holding a 3k rev is done for 10 secs...
Ken
12-07-2009, 08:29 PM
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^^ken,
iirc, i saw the procedure while reading on random stuff in the owner's manual.
there shouldn't be any difference between years. and i don't think there was a revised jet-air on/off time to speak of.
the subject of revving and shutting down has gone out of hand. it really is just a "choking" procedure that has gotten lost in translation somewhere.
iirc, i saw the procedure while reading on random stuff in the owner's manual.
there shouldn't be any difference between years. and i don't think there was a revised jet-air on/off time to speak of.
the subject of revving and shutting down has gone out of hand. it really is just a "choking" procedure that has gotten lost in translation somewhere.
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