I myself do not have a 3rd gen, I have a turbo II and i've been really curious... Lately I've noticed a lot of 3rd gen owners that don't have turbo timers, will often rev the engine some right before they turn the key off. Why is this? is this a reliability thing for them or turbo rx7's in general? If anybody has some insite to this "non-searched" post I would greatly apreciate it.


Thanks

 

hmm..i don't do it and don't know anybody who does, interesting to find out though. i have been told and read about the need to redline our cars to avoid carbon deposits buildup. that's the only thing i can think of, although i would just rather redline it while i'm actually driving.

 

Lance at www.lamotorcars.com always does this too when he shows rx7 here in Dallas. I also know he always has the rx7's checked out by Rotary Performance right down the road from him and i'm sure Ari told him it's something he should do before turning them off. Because he does it all the time.

 

Wow, that's interesting! I have never heard of that, either! I'd also love to know why they do that!

 

is that a fast and the furious thing? i only seen it in that movie.

 

I don't know of anyone who does that and I'll be damned if I can think of a good reason to do it...

 

I seen it on motorcycles, like how my nieghbor starts up his bike in the morning and revs that **** so we can all wake up. Then revs the **** again when he comes home.

 

Because his fascination with the noise hasn't worn off yet, and he wants everyone to know that he has a bike...

The only reason anyone would rev their car before shutting it off is to draw attention to themselves. There is no benefit whatsoever to be gained by doing it other than "hey, look at me" value.

 

I used to have to do it a long time ago on some carby cars to give it enough fuel to start the next time. Since my Fd is fuel injected, I try to keep the revs DOWN before shutting off.

pete

 

same here! I don't know why any FD would do that ****!

 

What the he is trying to do is cool the turbo down and get extra oil around it before switching off, doing this is like useing a turbo timer it lets the car cool down properly and prolongs the life of the turbo+

 

other then trying to get his car to flame/back fire, idk why he would do that. (I mean reving high right before shutting the car off).

 

actually since rotaries are prone to flooding I would think this is a really bad idea. But maybe I am wrong.

 

Please explain this. Revving the motor is not going to send anymore oil into the turbo than is already there at idle. And I would offer that revving a stationary car with the intent of somehow prolonging life is not a good idea as you have no airflow through the front end. And for all the bleeting masses who say "But yeah, I have the fan mod!" that doesn't do a thing for the oil coolers which are the only thing cooling the engine internals.


In the carbed days you did it to "clear" the carb and make startup easier. No use at all in it for a fuel injected car.

 

110% agree with DamonB.
I have had my car serviced by RP for 3-4 years now. Chris (who's super nice) has never, ever told me to do that.
Even when my car or other peoples car have been out to test and back to shop, I have never, ever seen Chris, Ari or any of the mechanics working there do that.
So go figure out where Lance got that.
Fast and the Furious????

 

Lance is constantly moving cars around his very small lot and is probably trying to prevent the cold engine flooding problem. I will stop by and straighten him out

 

The only thing I've ever heard of is revving as soon as you turn it on, to supposedly get oil flowing to the turbo then turn it off wait a few secs and then start normally. I have never heard of revving before you shut it off.

- Steiner

 

Seems like it would be bad to rev, get the turbos spinning real good, then cut their oil supply!

I would suspect it has to do with flooding, though.

 

How to ruin an engine - ANY engine.

Probably the absolute worst thing you can do, you don't do this, RIGHT?

Of course not!

 

I would wait for thatsocker early in the freaking morning to rev his bike for the last time with a shut gun
For sure he will not rev it when he gets home either.

I don't know why would people rev they're engines before shutting off that rises the tempereture instantly, instead you should idle few minutes to cool better not to rev it, makes no sense.

 

Race plugs?

My mechanic has informed me that I should rev up to about 3K or so (certainly not redline) before shutting down so as preserve the life of my plugs.

Someone with more knowledge than myself will have to explain why, but they've explicitly told me several times now that I should do it. Idling further fouls my plugs, apparently.

Any further insight and explanation is appreciated.

-E

 

The only reason to rev your car right before shutting it off: You are an idiot.

Don't do it. It just puts heat into what you want to be cool when you shut down.

 

My F'ing neighbor in his V6 eclipse ALWAYS does this, especially when I'm working on my car, and I never know why- but it pisses me off. After reading this thread, it appears he does this just to get attention...

...I think I'm going to have to rip him a new one just to shut him up. Luckily, there are a LOT of twisties leading to where I live, that we would both have to go through should we encounter each other on the way home...heh heh...

 

Race plugs foul easily and I guess this helps keep them clear? I am not familier with that one but do know that some motors will not even start on race plugs if they are cold. You must start the motor on normal plugs, warm it up and then swap to the race plugs and refire before the engine cools.

 

Hmm...interesting. I knew there must be some logical explanation for them telling me to rev it up a little before shutting down, as they aren't trying to have me attract attention to myself or make me look like an idiot (as far as I know).

They're pretty smart fellas.

I'd still like to hear more if possible.

Thanks Damon. Nice meeting you at the Austin meet last month, BTW.

-E