Rev Limiter at 9000 rpm in 5th gear on 2002 Z06???
08-16-2002, 07:56 PM
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Rev Limiter at 9000 rpm in 5th gear on 2002 Z06??? Just got my LS1Edit. Downloaded the stock PCM.
1st-4th limiter = 6600.
5th = 9000????
6th=6600
Huh? Shoulda kept driving past 6600, but I let out at 6500. Think this is for real?
Where do you adjust Limiter on a M6 car? The gear table right?
1st-4th limiter = 6600.
5th = 9000????
6th=6600
Huh? Shoulda kept driving past 6600, but I let out at 6500. Think this is for real?
Where do you adjust Limiter on a M6 car? The gear table right?
08-16-2002, 11:24 PM
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Re: Rev Limiter at 9000 rpm in 5th gear on 2002 Z06??? I adjusted mine in the gear table. Column one to 6800 and column two to 6799 on my car.
I wonder if they put it at 9000 in 5th because you realisticly cant over rev the stock engine in 5th because you'll run out of power at that speed.
Eric
I wonder if they put it at 9000 in 5th because you realisticly cant over rev the stock engine in 5th because you'll run out of power at that speed.
Eric
08-17-2002, 04:35 AM
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Re: Rev Limiter at 9000 rpm in 5th gear on 2002 Z06??? I read the PCM in the second time. Same.
Maybe it was done by Chevy, OR...
LS1Edit didn't read the right value for that gear.
Here's the big question...
Does an M6 car KNOW what gear it's in? If so, how? By the speedo? My trans has 3 wires that I'm aware of:
CAGS
Temp
Reverse sensor
There isn't a sensor for the gears, and the speedo drives off the wheels, not the driveshaft.
Hmmm....
Makes me think the "Gear Table" isn't what it appears to be on a M6 car. I know AutoTap says it's in first, no matter what gear it's in.
Maybe it was done by Chevy, OR...
LS1Edit didn't read the right value for that gear.
Here's the big question...
Does an M6 car KNOW what gear it's in? If so, how? By the speedo? My trans has 3 wires that I'm aware of:
CAGS
Temp
Reverse sensor
There isn't a sensor for the gears, and the speedo drives off the wheels, not the driveshaft.
Hmmm....
Makes me think the "Gear Table" isn't what it appears to be on a M6 car. I know AutoTap says it's in first, no matter what gear it's in.
08-17-2002, 09:27 AM
#4
Re: Rev Limiter at 9000 rpm in 5th gear on 2002 Z06??? I do not see why they'd do 9k RPM in there.
I would email Ken ( pcmdoc@surfree.com ) and see if he's run across that before. GM changes calibrations all of the time, so they could have moved that value (since your car is an '02).
Worth an email, I'd think.
Andrew
I would email Ken ( pcmdoc@surfree.com ) and see if he's run across that before. GM changes calibrations all of the time, so they could have moved that value (since your car is an '02).
Worth an email, I'd think.
Andrew
08-18-2002, 09:47 AM
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Re: Rev Limiter at 9000 rpm in 5th gear on 2002 Z06??? </font><blockquote><font size="1" face="Verdana, Helvetica, sans-serif">quote:</font><hr /><font size="2" face="Verdana, Helvetica, sans-serif">Originally posted by McRat:
<strong>There isn't a sensor for the gears, and the speedo drives off the wheels, not the driveshaft.
</strong></font><hr /></blockquote><font size="2" face="Verdana, Helvetica, sans-serif">A sensor isnt necessary. You dont have to, but you should adjust the programming when changing gears on an M6. It tells the pcm how to calculate the output shaft speed (out of the trans.) If you compare engine rpm, to output shaft rpm, you'll get the current transmission gear ratio.
This tells me there is also a table of transmission gear ratios.
I suspect this table is exactly what it is labeled. I should go test this theory by setting each gear 1-6 to 5500, 5000, 4000, 3000, 2000, 1500.
Eric
<strong>There isn't a sensor for the gears, and the speedo drives off the wheels, not the driveshaft.
</strong></font><hr /></blockquote><font size="2" face="Verdana, Helvetica, sans-serif">A sensor isnt necessary. You dont have to, but you should adjust the programming when changing gears on an M6. It tells the pcm how to calculate the output shaft speed (out of the trans.) If you compare engine rpm, to output shaft rpm, you'll get the current transmission gear ratio.
This tells me there is also a table of transmission gear ratios.
I suspect this table is exactly what it is labeled. I should go test this theory by setting each gear 1-6 to 5500, 5000, 4000, 3000, 2000, 1500.
Eric
