How do I stop from hitting the rev limiter?
Thread Starter
Instructor
Joined: Jul 2007
Posts: 246
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From: belews creek nc
How do I stop from hitting the rev limiter?
I have recently installed 342 gears and a vig. 2600 stall. sometimes the car shift where it needs to and sometimes it go beyond and hits the rev limiter. My tuner uses the hp tuner, any suggestions on where to set my rev limiter, shift points, mph, etc...
Burning Brakes
Joined: Jul 2006
Posts: 968
Likes: 12
From: Regina Sask
Post your stock & latest tune in the transmission section at http://www.hptuners.com/forum/, and I'll set it up for you.
I also need to know the rear tire size. Any mods to the engine?
Russ Kemp
I also need to know the rear tire size. Any mods to the engine?
Russ Kemp
Le Mans Master
Joined: May 2006
Posts: 7,874
Likes: 253
From: Hillsboro OR
Russ know his stuff and can tune an A4. 
FWIW, I used an HP Tuner to update my new 3:42 gear ratio. As soon as I entered the new gear ratio, the HPTuner S/W automatically changed the shift points.
A friend of mine and I just made them slighty more aggressive and also shortened the shift times too.
FWIW, I used an HP Tuner to update my new 3:42 gear ratio. As soon as I entered the new gear ratio, the HPTuner S/W automatically changed the shift points.
A friend of mine and I just made them slighty more aggressive and also shortened the shift times too.
Team Owner
Joined: May 1999
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From: Columbus Ohio
CI 3-4, 8-9-10 Veteran
St. Jude Donor '06-'08-'10
Le Mans Master
Joined: Aug 2005
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From: CA.
St. Jude Donor '13-'14-'15
The ECM needs to hit 2 parameters in order to command a shift at WOT-- 1st it must hit the "shift at vehicle speed " ( VSS) and then the "shift at RPM" Typically on a corvette if you have about a 1000 RPM split between the 2 it will shift correctly---BUT when installing a stall converter you must LOWER the shift at vehilcle speed even further.
For example if the 1-2 shift is missing the shift point and hitting the rev limiter-- and the VSS is set at 50 MPH--lower it to 40--- In EFILIVE the 1-2 VSS is table D0910---If you set the rev limiter higher like to 8000--then it would bang it at 8000 beacuse you havent corrected the problem--I would NOT do this----the rev limiter is just a safety rev limit--the Shift at RPM is the shift point at WOT
For example if the 1-2 shift is missing the shift point and hitting the rev limiter-- and the VSS is set at 50 MPH--lower it to 40--- In EFILIVE the 1-2 VSS is table D0910---If you set the rev limiter higher like to 8000--then it would bang it at 8000 beacuse you havent corrected the problem--I would NOT do this----the rev limiter is just a safety rev limit--the Shift at RPM is the shift point at WOT
Former Vendor
Joined: Jun 2002
Posts: 2,045
Likes: 3
From: Bridgewater Ma
The ECM needs to hit 2 parameters in order to command a shift at WOT-- 1st it must hit the "shift at vehicle speed " ( VSS) and then the "shift at RPM" Typically on a corvette if you have about a 1000 RPM split between the 2 it will shift correctly---BUT when installing a stall converter you must LOWER the shift at vehilcle speed even further.
For example if the 1-2 shift is missing the shift point and hitting the rev limiter-- and the VSS is set at 50 MPH--lower it to 40--- In EFILIVE the 1-2 VSS is table D0910---If you set the rev limiter higher like to 8000--then it would bang it at 8000 beacuse you havent corrected the problem--I would NOT do this----the rev limiter is just a safety rev limit--the Shift at RPM is the shift point at WOT
For example if the 1-2 shift is missing the shift point and hitting the rev limiter-- and the VSS is set at 50 MPH--lower it to 40--- In EFILIVE the 1-2 VSS is table D0910---If you set the rev limiter higher like to 8000--then it would bang it at 8000 beacuse you havent corrected the problem--I would NOT do this----the rev limiter is just a safety rev limit--the Shift at RPM is the shift point at WOT
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Team Owner
Joined: May 1999
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From: Columbus Ohio
CI 3-4, 8-9-10 Veteran
St. Jude Donor '06-'08-'10
You need to pick a fluorescent sharpie marker. Yellow or bright red is good.
Then on the tachometer side of the cluster draw a thick line from the center of the dial to the 5,000 RPM mark.
Now whenever the tach needle gets to the new line just automatically push the clutch in and shift to the next higher gear.
If you'd like to remove the cluster and ship it to me this mod would only run you $278.50 plus shipping.
Team Owner
Joined: Jul 2004
Posts: 24,652
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From: NJ
St. Jude Donor '05-'08
if you are hitting the rev limiter with a 6-speed you need to shift earlier. Many times the tach lags behind the actual rpms so looking at the tach may not be the solution (unless you shift at a place earlier than you think you should).Personally I would buy and install a raptor shift light. You set it to where you are ensured you are not going to hit the rev limiter.
Team Owner
Joined: Jul 2004
Posts: 24,652
Likes: 298
From: NJ
St. Jude Donor '05-'08
You need to pick a fluorescent sharpie marker. Yellow or bright red is good.
Then on the tachometer side of the cluster draw a thick line from the center of the dial to the 5,000 RPM mark.
Now whenever the tach needle gets to the new line just automatically push the clutch in and shift to the next higher gear.
If you'd like to remove the cluster and ship it to me this mod would only run you $278.50 plus shipping.
