Okay, I did a search and I swear to God I didn't find an answer. If I missed it I'll happily take my beating like the newb that I am.

With regards to redlining the engine - does it matter what gear you're in when you do it? Can you be in neutral? I wouldn't think it would make a difference but I wanted to pose the question anyways.

Thanks in advance!

 

I prefer to be under load (not neutral) and 2nd gear so as not to break most byway speed limits.

No fun out of it in neutral either.

 

Ive always wondered this quesiton as well. Another question regarding this is, When you redline .. say in 2nd..... Do you have to shift to 3rd ? Or can you redline... and ease off throttle ?

 

^............are you serious with that question? Of course you can......or you can shift from 2nd to any gear with the exception of 1st or reverse at that time.

I usually redline 2nd and then 3rd, then I shift to 5th or 6th.
I don't like redlining in 1st.


Oh..and to the OP, "yes, you search skills are lacking", but..............it is preferred to not redline or come any where near it in neutral. You want it under load.

 

Red line under load IE in gear. If you red line in neutral or park, you will not activate the secondary ports and clean them.

 

i redline at least once a day to keep the carbon away.

 

You guys notice how everybody is afraid to post questions in fear of being bashed for not searching first? I don't have a huge tolerance for laziness or ignorance either but this is like the 3rd new thread with that beginning i've seen today... lol.

And yeah i drop it in 2nd on the stretch of 2 lane road on my way home from work just about everyday. Sometimes in 3rd on the highway. Seeing 84mph in 3rd always puts a smile on my face. ;-P

 

I redline it in 1st. There's no where I can redline it in 2nd on a typical DD to work and back without going quite a bit out of the way to a highway 10-15 miles off just for the point of redline in 2nd each day.

 

And you only got 17 posts and joined this month!
Imagine how many I've seen over the last four years!
There are other that have been he way longer than me!
Now you know why we get grumpy!!!!!!

 

Redline will cause you to be a violator and have disreard for public safety.

Do it on a on ramp in second gear. You will still hit 68 mph.

After your finished. Go to church and pray for your sin.

 

Neutral is a special case -- there is no airflow and so heat from the exhaust system and catalytic converter is a bigger issue.

 

^Please explain. Red lining is to help blow out carbon from the engine. If you red line out of gear then you do not open the secondary ports thereby not blowing out carbon from these secondary ports. Over time, the secondary ports would become blocked. Unless I missed something, you need to red line in gear.

 

Redline in reverse while holding the clutch in; it will engage the flux capacitor's 1.21 gigawatts and enter warp speed.

 

thats pretty funny

 

The "you should red line to clear out internal carbon" idea is not a hard and fast rule and some people take it too literally like it's scheduled maintenance. That said, I don't think most owners have trouble redlining the engine in the natural course of driving. If the main goal is to clear our carbon, theoretically spinning the engine fast should do this. That said, the engine isn't under load so the combustion pressures,etc. that might aid in this process would be different. As mentioned above, under load would also keep the rpm activated ports moving.

While it's known that clearing the carbon is good, no one can point to solid empirical data indicating how much engine/speed load is needed to remove the optimal amount of carbon, without unnecessarily wearing the engine.

 

1) Ports don't keep moving, they are either opened or closed

2) You dont need to redline, just need to rev over 6k rpm as stated by Mazda in a Bulletin informing AT customers. There is a sticky on this. This will ensure all ports are open and that the rotors are moving fast enough to blow out carbon. It may be a little higher for standards, don't remember.

3) Using a good premix with a cleaner or cleaning abilities will also keep the carbon down.

You don't need to red line by going WOT, you can gradually raise the RPM to said point.

 

I redline in 6th in school zones at 8AM.

 

^............you'd be faster in 5th as you well know!

 

I have the special one off and real Mazdaspeed RX-8. According to Mazda, the 8th gear in my MS RX8 is the warp gear. 7th is speed of sound.

 

i redline on reverse

 

My fav is 2nd or 3rd while taking a 270 degree onramp to the freeway at 60-70 mph. Obviously you're going to redline 3rd at that speed, but it's still fun. It's the only place I can take a turn that fast in town.... Legally.

 

I don't get the people that say "I redline at least once a day".

Sounds like you aren't having fun.

For giggles, I counted the number of full wide open throttle red-line beep hits I did on just the 15 mile commute home today...

1st gear - 10
2nd gear - 5
3rd gear - 3

I have winter tires on, so I try to keep it to double digit speeds. With summers, I often have one 4th as well.

I don't know how many I did this morning on the way to work. Probably a few more, due to lane and light differences.



Sure I waste some extra gas. But then, my wife wastes money going to the movies and out with friends too. She wastes more there than I do on gas.

 

You missed understoof my question. What i meant was... say you redline.. do you have to "shift" after that or can you just ease off and let rpm drop. Would that be as effective as redlining then shifting up to remove carbon ?

 

I'm thinking if anything, it would be a tad more effective as you technically would be at a higher rev for longer, but not really sure?

 

I would say 'yes'. I do both all the time. Nail up to redline then back off the throttle to drop back down to mundane speeds.