Rx8mommie

Ok so I was at the dealership today,when a service guy asked me"do you know what you just did wrong?" My reply to that, was no,he told me since I have a rotary engine I am suppose to always tac it up to 5-6g rpms then immediately turn the key off,due to it being rotary and the ports get clogged up between drive times... im bumfounded cause this isnt my first performance car(or my last),but my first rotary... Ive asked a few other friends who have had rotarys and there confused also....So has anybody else heard of this ??

Rotary-RX8

iTrader: (1)

You dont HAVE to do this. I recently started doing this however. Better be safe then sorry.

Bullitt

iTrader: (7)

I've never heard that. You're supposed to shut the car off while hitting the gas?

fuztupnz

iTrader: (4)

He's full of ****. The only time it's necessary is when turning it off cold. And as the owners manual states, is to hold it at 3k for 10 seconds and turn off before the revs drop. As long as you have the updated starter, latest ecu flash, a good battery, good coils and good plugs, it's not really necessary at all.

Bullitt

iTrader: (7)

Ah. Gotcha. Still interesting. I missed that part of the manual somehow.

fuztupnz

iTrader: (4)

I believe its towards the back in a little blurb about cold starts or something. I'd have to look at it again to find it's exact location.

Either way, If you're worried about it, don't turn the car off cold. If you're still worried, a blip of the gas to 3 or 4 k then kill it is all that's needed.

All it does is keep the fuel from dumping into the combustion chamber at idle.
When you hold it at 3k for 10 seconds, its just getting the engine warmer and turning it off keeps it from dumping fuel.

Bullitt

iTrader: (7)

Good stuff. Thanks, fuz. I've never had any trouble with cold shutdowns, so I'm not too worried.

9krpmrx8

iTrader: (46)

Well, I had the latest flash, new coils, starter, etc. and I still accidentally flooded it after a flip flop incident when it was cold so don't take that as gospel. Just follow the owners manual when turning off cold or do what I do and just don't turn it off cold unless absolutely necessary.

Of course I have the BHR ignition kit now so I shouldn't be able to flood it but I still holding it at 3k and switch the ignition off when I am putting her in the garage for the night.

Flooding only happened to me twice in the many years I have owned the car and both times were due to my stupidity. But trust me when I say it is a pain in the ***. Both times I followed the factory deflood process and it worked both times but make sure you have a good battery.

fuztupnz

iTrader: (4)

Right. I was referring to what the tech said as bullshit. Even though I said it shouldn't be necessary, I still blip mine if i haven't driven for what I think is enough and I never shut down cold.

alfy28

hmm to burn out carbon build up? at least that is what is on japanese forums for rotaries

Rx8mommie

thanks guys! I agree maybe doing it when its cold but my car is always heated before I go anywhere and also well heated before I shut it off.

User24

iTrader: (1)

Does a cold engine mean cold coolant, or cold oil temperature? The coolant heats up right away, the oil takes 10-20 minutes...

fevest

My dealer told me that. I ignored them. On the very rare occasion I have to shut car down cold. I do the 3500 rpm thing, which is in the manual someplace. Never had an issue.

8 Maniac

iTrader: (1)

Rev it before shutting off when cold.
Rev it high when driving around to clean out carbon build up (needs to be in gear so it's under load).

Maybe the guy mixed those 2 together?

tacti

iTrader: (3)

I've read about this here

https://www.rx8club.com/rx-8-discussion-3/about-flooding-business-14947/

and I've been doing it just to be safe....

Tact

RXLogic

Yes it is -- I forgot the 3k rule and flooded mine moving the car into the garage from the driveway last week. I had to crank it for 2-3 minutes before it would start.

Rx8mommie

awesome guys! thanks

ASH8

If you have a Series II RX-8 (your pic shows one) then you can't rev a COLD Renny II over 5-6000 RPM.

It is ALL a load of Bullshit, just like some say you should cool down a rotary, again a load of Bullshit as all you will do is heat it up more (doing a cool down...which is OK for the Turbo If any car has one).

I have NEVER flooded my car, I only follow ONE Simple Rule, Never Turn OFF if the first of the 3 RED LED bar is still ON.

Never Drive OFF if the first of the 3 RED LED bar is still ON.

RXLogic

I have no idea what you are talking about. Is that a Series II thing?

ASH8

When you QUOTE someone you are talking specifically to them.

'Rx8mommie' Avatar, the Picture of the RX-8 is a SERIES 2 RX-8.

That is ALL RX-8's made on or after April 2008...

Known as 2009 Model Year...

So if you own a series 2, the information I talked about and addressed to her the OP pertains to all series 2 RX-8's..

If you do not own one then it does not 'exactly' apply to you because series 1 RX-8's do not have this dashboard and LED temp indicator feature.

Rx8mommie

yes,first thing in the morning when my car is first started it wont let me rev past 5 and it actually takes it awhile to warm up until i can,my car is a 2010,

maskedferret

iTrader: (1)

Buncha snobs and your LED bars.

EDIT: Oh, and the whole "rev to Xk RPM and shut it off" deal is from the instructions for an abbreviated drive cycle that advises to let the car warm up for 5 minutes, then to rev to Xk RPM for Y seconds prior to shutting off (on the DVD, I believe). I do not recall those instructions explicitly saying to shut it off while the revs are up there.

MazdaManiac

iTrader: (3)

ASH8

Yes

Chad D.

iTrader: (19)

I always revved my RX-7 to 3000 b4 turning it off and I do the same to my 8 with absolutely no reason to it.
I just do it to seem cool i guess.