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Old Oct 7, 2010 | 01:31 PM
  #1  
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Whos right?

So ive always heared that when you redline the car once a day you elimate the carbon residue in the engine right? everyone says that but the other i went to the dealer and talked to the rotary mechanic and he said that taking the car to redline every day might just do the problem worse as the pump is just injecting even more oil into the engine. What do you guys think ?
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Old Oct 7, 2010 | 01:56 PM
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not the mechanic.
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Old Oct 7, 2010 | 01:58 PM
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a redline a day keeps the carbon away.
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Old Oct 7, 2010 | 01:58 PM
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mehh redline that biatch
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Old Oct 7, 2010 | 02:00 PM
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just be careful of HOW you redline and dont' abuse the transmission too much. (ie; slamming it into 2nd)
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Old Oct 7, 2010 | 02:01 PM
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Your engine oil should be a lot cleaner than your fuel. And probably has additives that help clean as well.
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Old Oct 7, 2010 | 02:04 PM
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Originally Posted by Jedi54
just be careful of HOW you redline and dont' abuse the transmission too much. (ie; slamming it into 2nd)
no slamming it into 2nd?? so redline in 1st and then granny shift into 2nd??
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Old Oct 7, 2010 | 02:27 PM
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slamming into 2nd not great for trans but it is good for the soul!
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Old Oct 7, 2010 | 02:39 PM
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My uncle is actually a Mazda mechanic and says this is a must.
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Old Oct 7, 2010 | 04:23 PM
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I was in the same situation. The mechanic told me once a week. But im going based on what this forum truly believes in which is once a day. Also about slamming into second, i usually redline IN second then shift to 4th. I read somewhere on here that its not good to go from 2nd redline to 3rd right away.
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Old Oct 7, 2010 | 04:58 PM
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From: Burls On
Originally Posted by Charles R. Hill
IMO, the Renesis likes to see higher RPMs than most people think and being somewhat related to a traditional piston-port 2-stroke, when in doubt.... rev that Bitch.

The 2004-2005 RX-8 models had notoriously low oil injection volumes and redlining the engine allowed for at least SOME additional oil to be injected into the engine, above the normal volumes. Whether or not this helps has yet to be objectively/scientifically proven to be beneficial but most people who "abuse" their RX-8s have few problems with carbon/lubrication.

Additionally, these oil concerns are why BHR promotes the use of the Cobb AccessPort and the Sohn OMP Adapter. With these products, there is no need to rev the crap out of your engine.
I always ran the crap out of my 2004 MT (still do) and it seems to be doing well @ > 80K miles
Now I have an AP and the Sohn is the next thing in.
How's your oil reservoir for Sohn coming along?

BTW: no need to redline; 7500 should be enough but redlining is fun!

Last edited by DarkBrew; Oct 7, 2010 at 05:01 PM.
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Old Oct 7, 2010 | 05:38 PM
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From: Somewhere in 3rd gear
Originally Posted by Rotary-RX8
. I read somewhere on here that its not good to go from 2nd redline to 3rd right away.
Never heard this before, doesn't make any sense to me, and would make properly tracking the car quite difficult.
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Old Oct 7, 2010 | 05:46 PM
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I thought the same. Thats what ive been doing ever since. I do notice that if i go straight to 3rd that its very jerky no matter how gentle i release the clutch.
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Old Oct 7, 2010 | 08:34 PM
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Originally Posted by Charles R. Hill
IMO, the Renesis likes to see higher RPMs than most people think and being somewhat related to a traditional piston-port 2-stroke, when in doubt.... rev that Bitch.
This is exactly why I bought an Rx-8. After over a decade of people yelling at me about "******* my car", or "beating up my engine", I come across a car were people say, "for the health of the engine, red line once a day." my response? "**** YEAH, SOLD!!"
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Old Oct 7, 2010 | 08:40 PM
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That Mazda tech is wrong.

Rev it because it needs to.

if u're using 2 stroke only like CRH said thru the adapter then u don't need to.
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Old Oct 7, 2010 | 08:56 PM
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yea thats what i thought ! i love taking my car to 8500rpm thanks a lot for the help
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Old Oct 7, 2010 | 09:53 PM
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The carbon build up occurs due to driving the car at low rpms. Say always below 3000. Which is why so many AT's died prematurely. Keep the rpm's above 4000 and you wont have a carbon issue.

4000 to 9000 The engine loves it.
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Old Oct 7, 2010 | 10:52 PM
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ohh wow! I was actually told at mazda to avoid drivig my 8 below 2000 rpm! sounds like im gonna have even more fun now!
thanks agaian guys
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Old Oct 8, 2010 | 12:15 AM
  #19  
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I drive at Red Line.
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I redline mine all the time. it seems to be running just fine.
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Old Oct 8, 2010 | 05:39 AM
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Mazda techs are taught how to repair a car. They are not taught how to care for a car and probably have never owned a rotary engined car. The people here have had to live with the RX8 and know more about maintenance that the techs do.
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Old Oct 8, 2010 | 08:03 AM
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The "rotary mechanic" you spoke to is a f-ing idiot. Find yourself a new dealer. I wouldn't trust my car with this douche.
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Old Oct 8, 2010 | 11:12 AM
  #22  
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yea, to reinforce what everyone else has said, redlining the engine is not a bad idea. overrevving the engine IS however a bad idea. apex seal chatter can occur and who knows if the omp can keep up with the needed volume at 10K rpm. either way, thats why mazda installed a rev limited..to prevent over rev issues. at any rate, when running my engine, i shift right around the over rev buzzer or just when it starts. definatly be careful running the engine hard and slamming the gears in the trans. a delicate hand is needed but the right delicate hand can make shifting safe and fun at the same time!
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Old Oct 8, 2010 | 11:33 AM
  #23  
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High RPM = bad MPG

butt who cares?

5500RPM and more!
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Old Oct 8, 2010 | 12:23 PM
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the buzzer is your motors way of thanking you. BEEP!
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Old Oct 8, 2010 | 12:47 PM
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Originally Posted by 200.mph
the buzzer is your motors way to ORGASM BEEP!

FIXED !!
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