Redline
Multi-Tasking Moderator!
Joined: Nov 2006
Posts: 15,618
From: Detroit Rock City!
RE: Redline
6250 and many get a tune and raise that to 6500 or higher! I personally dont go over 6000 RPMS ever and dont want to dump more money into a major engine repair for to high of RPMS JMO J
4th Gear Member
Joined: Mar 2006
Posts: 1,313
From: CA
RE: Redline
01silvergt,
I'll help you out. You can get three tunes from Brenspeed but they need not be all 93. The handheld can correct for the gears so you don't need a separate tune for that. Brent can turn off the rear 02 sensors if you get an O/R H pipe so you need not have a separate tune for that. Having the rear O2 sensors turned off doesn't affect your stock mid pipe, its fine. So really your only need 1 93 tune and when you get the gears just change it with the handheld.
I just got a couple tunes from Brent and he universally sets the redline at 6800 unless ortherwise requested as he has found that the cars tend to dial back on the fuel between 6400-6600 rpms sometimes and with a compete fuel shut off at 6800. If you were to have the redline at 6200 and were wanting to shift at 6100, there is the chance you could bounce it off the limiter and cut fuel before you complete the shift which may hurt your 1/4 mile times. So with the higher rev limit and shifting at 6200 you won't run the risk of fuel shortage.
I'll help you out. You can get three tunes from Brenspeed but they need not be all 93. The handheld can correct for the gears so you don't need a separate tune for that. Brent can turn off the rear 02 sensors if you get an O/R H pipe so you need not have a separate tune for that. Having the rear O2 sensors turned off doesn't affect your stock mid pipe, its fine. So really your only need 1 93 tune and when you get the gears just change it with the handheld.
I just got a couple tunes from Brent and he universally sets the redline at 6800 unless ortherwise requested as he has found that the cars tend to dial back on the fuel between 6400-6600 rpms sometimes and with a compete fuel shut off at 6800. If you were to have the redline at 6200 and were wanting to shift at 6100, there is the chance you could bounce it off the limiter and cut fuel before you complete the shift which may hurt your 1/4 mile times. So with the higher rev limit and shifting at 6200 you won't run the risk of fuel shortage.
Thread Starter
6th Gear Member
Joined: Nov 2005
Posts: 6,828
From: Clarksville TN
RE: Redline
ORIGINAL: mygt500
6250 and many get a tune and raise that to 6500 or higher! I personally dont go over 6000 RPMS ever and dont want to dump more money into a major engine repair for to high of RPMS JMO J
6250 and many get a tune and raise that to 6500 or higher! I personally dont go over 6000 RPMS ever and dont want to dump more money into a major engine repair for to high of RPMS JMO J
Thread Starter
6th Gear Member
Joined: Nov 2005
Posts: 6,828
From: Clarksville TN
RE: Redline
ORIGINAL: UrS4
01silvergt,
I'll help you out. You can get three tunes from Brenspeed but they need not be all 93. The handheld can correct for the gears so you don't need a separate tune for that. Brent can turn off the rear 02 sensors if you get an O/R H pipe so you need not have a separate tune for that. Having the rear O2 sensors turned off doesn't affect your stock mid pipe, its fine. So really your only need 1 93 tune and when you get the gears just change it with the handheld.
I just got a couple tunes from Brent and he universally sets the redline at 6800 unless ortherwise requested as he has found that the cars tend to dial back on the fuel between 6400-6600 rpms sometimes and with a compete fuel shut off at 6800. If you were to have the redline at 6200 and were wanting to shift at 6100, there is the chance you could bounce it off the limiter and cut fuel before you complete the shift which may hurt your 1/4 mile times. So with the higher rev limit and shifting at 6200 you won't run the risk of fuel shortage.
01silvergt,
I'll help you out. You can get three tunes from Brenspeed but they need not be all 93. The handheld can correct for the gears so you don't need a separate tune for that. Brent can turn off the rear 02 sensors if you get an O/R H pipe so you need not have a separate tune for that. Having the rear O2 sensors turned off doesn't affect your stock mid pipe, its fine. So really your only need 1 93 tune and when you get the gears just change it with the handheld.
I just got a couple tunes from Brent and he universally sets the redline at 6800 unless ortherwise requested as he has found that the cars tend to dial back on the fuel between 6400-6600 rpms sometimes and with a compete fuel shut off at 6800. If you were to have the redline at 6200 and were wanting to shift at 6100, there is the chance you could bounce it off the limiter and cut fuel before you complete the shift which may hurt your 1/4 mile times. So with the higher rev limit and shifting at 6200 you won't run the risk of fuel shortage.
2nd Gear Member
Joined: May 2006
Posts: 237
From:
RE: Redline
On the stock tune the rev limiter is set for 6250rpms, so shift at 6000 rpms so you that have completed it by 6100. Now when you get a cai/tune your car will make alot more horsepower and it will peak at a slightly higher rpm (6100-6150rpms). With a higher rev limiter of 6800rpms which is the default setting from most tuners out there, shifting at 6200-6300 shouldn't hurt anything and your car will pull strong all the way up to this point. Can someone with a automatic car that has a cai/tune tell us what your wide open throttle shift points are set for what rpm?
4th Gear Member
Joined: Jan 2006
Posts: 1,644
From: Nashville Tn
RE: Redline
The factory limit is set to 6250. The spanish oak processor has a torque nanny feature which will begin to pull timing a couple of hundred rpm's before the redline predetermined by the tune.These mod motors love to rev. If you have a good tune with aggressive timing you will pull hard to 6600. That is why so many tuners jack the redline to 6800. Before my cams, with a dyotune, I would pull to 6600 regularly as torque held strong on the graph to 6450. It was pulled to 7k several times on the dyno with no problems. Now, with the cams and springs, my limiter is at 6850. My optimum shift points are right at 6600. My torque holds higher in the rpm band. I set my shift light at 6500 so that I can get the shift in by 6600 - 6700 which allows me to drop back into the peak torque on the shifts. It was pulled to 7200 on the dyno with no ill effects. Don't be afriad to rev these engines ( N/A ). They willl not come apart as long as the tune and the A/F is on target.
3rd Gear Member
Joined: Apr 2007
Posts: 763
From: Pa
RE: Redline
Personally, I would be less worried about valve float above 6K and more worried about rod strength.OHC type engines generally use stronger valve springs than pushrod types, because they do not have to worry about pushrod deflection. The forces being exerted on the rods up that are high in the RPM range is on the order of millions of pounds every time the piston changes direction.
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