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Revving over 7000 on S5 bad?

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Old 05-20-05, 01:58 PM
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Revving over 7000 on S5 bad?

I've got a 91 N/A with 115k miles, and have been told to keep the revs well below redline, no higher than 7000, because an older engine could destroy itself. Does this sound right? I have a feeling a lot of s5's out there have as many miles and visit the redline every day....
Old 05-20-05, 02:02 PM
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Hello ball man.

No, whoever told you that is on crack

It's a rotary, wind it up.
Old 05-20-05, 02:04 PM
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If it's in good shape don't see any problem. That's what they're made for.
Old 05-20-05, 02:40 PM
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Thanks, it sounded bogus but I didn't want a rotor flying out and slicing my legs off.
Old 05-20-05, 02:47 PM
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Originally Posted by meatball91
Thanks, it sounded bogus but I didn't want a rotor flying out and slicing my legs off.
lmao!
Old 05-20-05, 05:04 PM
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heh heh make sure to rev 'er up good once in a while (8000rpm) to blow all the carbon out
Old 05-20-05, 05:36 PM
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not rev.....do it under load.....
Old 05-20-05, 05:47 PM
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197K miles on S5 vert with original motor: Redlining it to 8K every drive.
Old 05-20-05, 09:41 PM
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what about the rotor seals do you have to worry about those

Last edited by rx7b13; 05-20-05 at 09:44 PM.
Old 05-20-05, 10:12 PM
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as long as the oil inj are working, they should be lubricating the apex seals, and it shouldnt be any problem. 160k on my engine, and it hits redline at least every week...ive got the full racing beat exhaust, so i have to be super careful in my area...cops dont exactly appreciate a full racing exhaust blowing by at 8000 rpms.
Old 05-20-05, 10:44 PM
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how much did you pay for the whole racing beat exhuast system
Old 05-21-05, 12:29 AM
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search function works great for the easy questions.

Check out the RB site for pricing on exhaust components.
Old 05-21-05, 12:53 AM
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i tried 8,000 the other day and it chuged at 7,3000. dont know what hapened.
Old 05-21-05, 02:22 AM
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You are able to Rev it...
Old 05-21-05, 01:37 PM
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nevermind thought it said somethign it didnt

Last edited by U of Dayton-FC3S; 05-21-05 at 01:39 PM. Reason: wrong stuff
Old 05-21-05, 09:01 PM
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Originally Posted by 88rxn/a
i tried 8,000 the other day and it chuged at 7,3000. dont know what hapened.

Thats because you have a S4 with a 7k rpm redline.
S5 n/a's have a 8k redline. Don't blow up your engine.
Old 05-21-05, 09:08 PM
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Originally Posted by Madrx7racer
not rev.....do it under load.....
Just wondering your reasoning for revving under load?
Old 05-21-05, 11:01 PM
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Originally Posted by JinZemog
Thats because you have a S4 with a 7k rpm redline.
S5 n/a's have a 8k redline. Don't blow up your engine.
i have an S4 and i have reved it to 8K revs and nothing happens
Old 05-21-05, 11:08 PM
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S4: Redline is 7000 RPM, fuel cut is 8000 RPM.

S5: Redline is 8000 RPM, fuel cut is 9000 RPM.

The reason for the difference is that the S5 has lighter rotors & some other stuff that allows it to spin faster & make power up there. A stock engine is choked off by redline anyway - the stock intake & exhaust just can't flow enough to make power that high. At least for S4s, 6500 RPM is usually a good shift point for a more or less unmodded car.

-=Russ=-
Old 06-07-05, 06:15 PM
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when i race i rev my s4 up to 7500
Old 06-07-05, 06:18 PM
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not meaning to hijack this but it has alot do to with reving
would ceramic apex seals be good for reving a stock s4 up to 8000k
Old 06-07-05, 06:40 PM
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But what would be the point if its not making any power at that rpm?
Old 06-07-05, 06:53 PM
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i think i am a *****, ive had my s5 turbo for 5 months now and it has never seen over 6.5 k rpm. I guess the detonating in the engine doesnt help my cautiousness. I wouldnt mind hearing that redline buzzor tho
Old 06-07-05, 07:18 PM
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how high can an s4 rev before it explodes, my throttle stuck about a month ago and it went to about 10500rpm before i turned the key. I have s5 guages and it revved untill the guage wouldnt read and further. started it back up and ran perfectly...

edit: anyone know how to install a rev limiter?
Old 06-07-05, 09:14 PM
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how do you know it went up to 10500 when it stops at 8?


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