Max RPM @ 6400?

bjlarson · Post by **bjlarson** » Thu Oct 14, 2004 11:55 am

I have a 2005 AWD and I was cruisin' around today and noticed that my rpm would not go above 6400, no matter what I tried. Is there a restriction on the max rpm that an AWD can handle? Isn't redline at 8300?(not that I'm going there)Thanks!

nismo · Post by **nismo** » Thu Oct 14, 2004 12:37 pm

Yeah. There's a beautiful thing which we call a rev limiter.Inder

MadBill · Post by **MadBill** » Thu Oct 14, 2004 2:04 pm

The GT can rev to ~8300 RPM; the rev limiter for the base engine is ~ 6300-6400.

bjlarson · Post by **bjlarson** » Thu Oct 14, 2004 2:30 pm

Got it!

Mavrik · Post by **Mavrik** » Fri Oct 15, 2004 1:38 am

Quote, originally posted by MadBill Â»The GT can rev to ~8300 RPM; the rev limiter for the base engine is ~ 6300-6400.unless you have a base manual transmission... it revs higher then that, my rev limiter hits in if I remember correctly (only tried once) in the 7000rpm range

VibeChick · Post by **VibeChick** » Fri Oct 15, 2004 3:17 am

I'd be surprised at that. It should be the same. Mine kicks in at precisely 6400 rpms. And I've tried it many times.

Mavrik · Post by **Mavrik** » Fri Oct 15, 2004 4:04 am

Quote, originally posted by VibeChick Â»I'd be surprised at that. It should be the same. Mine kicks in at precisely 6400 rpms. And I've tried it many times. weird, I know mine was at 7000rpm, I had a mechanic with me at the time, we took it for a drive after he did the alignment from when I installed my springs... oh well lol... so carrie how often you redline? every shift?

VibeChick · Post by **VibeChick** » Fri Oct 15, 2004 5:00 am

Quote, originally posted by Mavrik Â»weird, I know mine was at 7000rpm, I had a mechanic with me at the time, we took it for a drive after he did the alignment from when I installed my springs... oh well lol... so carrie how often you redline? every shift? How often? Gee, sometimes I do it several times a day...but with snow on it's way this weekend, I think the fun driving is over for now

Celtic_Curse · Post by **Celtic_Curse** » Fri Oct 15, 2004 11:35 am

I have my shift light set at 6200RPM because the limiter kicks in at 6400RPM as well.

MadBill · Post by **MadBill** » Sat Oct 16, 2004 1:54 am

Quote, originally posted by Mavrik Â»weird, I know mine was at 7000rpm, I had a mechanic with me at the time, we took it for a drive after he did the alignment from when I installed my springs... oh well lol... so carrie how often you redline? every shift? Wow! we need to clone your ECM, Mavrik. Most of us base 5-speed pilots would love to have a 7,000 RPM limiter! (unless your tach just has a huge error...) (mine's 6,400 also )

bobsbase04 · Post by **bobsbase04** » Thu Oct 21, 2004 12:01 pm

There is a way to remove your rev limiter. I'm sure you can put some type of rev limiter in it, after removing the crystal in your ECU. Also check this out. Bad damge to engine with no Rev limiter:http://www.newcelica.org/forum...26792

MadBill · Post by **MadBill** » Thu Oct 21, 2004 10:21 pm

Umm... I don't think you could change a chrystal in the Vibe computer to raise/eliminate the rev limiter. I think new values have to be input to the tables in the engine computer, or add a 'piggyback' user-adjustable computer. Agreed, eliminating it is just asking for trouble; sooner or later you'll miss a shift, lose a clutch, etc., then: BOOM! However, best acceleration requires shifting somewhat past peak power RPM (which seems to be ~ 6,000 to 6,200 on a Base Vibe, per various actual dynomometer graphs), to keep the RPM nearer the peak, so a 7,000 RPM limit would be about right, and I believe is factory programmed in some applications of this engine.

nismo · Post by **nismo** » Fri Oct 22, 2004 3:00 pm

I know if I'm in a race, the RPM's will only go to 6200 and then the next gear and so and so forth.Inder

nismo · Post by **nismo** » Tue Oct 26, 2004 11:43 pm

Well, I tried the rev limiter last nite. It cut in at 6700 RPM.Inder

Project Shadow · Post by **Project Shadow** » Tue Nov 09, 2004 12:59 pm

So is there a safe increase us base people could change to with programming? Mine cuts out at around 6400 but definatley not over.

03VibeGT6Spd · Post by **03VibeGT6Spd** » Tue Nov 09, 2004 4:44 pm

Are you guys saying that on the 1zz's there tach shows the same redline as the 2zz's.That would be tacky, or at least serious tease.

AKLGT · Post by **AKLGT** » Tue Nov 09, 2004 4:59 pm

Quote, originally posted by Mavrik Â»weird, I know mine was at 7000rpm, I had a mechanic with me at the time, we took it for a drive after he did the alignment from when I installed my springs... oh well lol... so carrie how often you redline? every shift? that is strange since it's supposed to kick in at 6400 rpm. i know when my engine is cold in the GT, rev limiter hits about 7000 rpm.

nismo · Post by **nismo** » Wed Nov 10, 2004 12:28 am

Well, I tried mine, and yes, the rev limit on mine is like 6400-6700. Somehwere in that area. But I'm pretty sure it's 6700.Inder

rubberman · Post by **rubberman** » Thu Nov 18, 2004 10:02 am

On my 91 Si i have the computer chipped it raised the limiter from about 6800rpm to 7200rpm.

Max RPM @ 6400?

Max RPM @ 6400?

Re: Max RPM @ 6400? (bjlarson)

Re: Max RPM @ 6400? (bjlarson)

Re: Max RPM @ 6400? (MadBill)

Re: Max RPM @ 6400? (MadBill)

Re: Max RPM @ 6400? (Mavrik)

Re: Max RPM @ 6400? (VibeChick)

Re: Max RPM @ 6400? (Mavrik)

Re: Max RPM @ 6400? (Mavrik)

Re: Max RPM @ 6400? (MadBill)

Re: Max RPM @ 6400? (bobsbase04)

Re: Max RPM @ 6400? (MadBill)

Re: Max RPM @ 6400? (TRD4reel)

Re: Max RPM @ 6400? (Mavrik)

Re: Max RPM @ 6400? (trdvibe)

Re: Max RPM @ 6400? (MadBill)