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Old 01-06-2012, 01:38 PM   #1
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Rev Limiter?

Ust curious what tje maximun rev is on a 2V 4.6l. My engines is fresh so im not gona try it for a long time but i think it stops at like 5500 or so. But on youtube there are some stangs that shift way past the reline ponit..like 7k in the redline, my question is how do they do that?
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Old 01-06-2012, 01:51 PM   #2
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Programmers usually is your answer they by pass stock settings But 7000 grand and higher there are a lot of issues. I would not try it with a stock motor if you do have fun. And I hope you have another motor ready........
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Old 01-06-2012, 02:09 PM   #3
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Quote:
Originally Posted by 98prosnake5.4
Programmers usually is your answer they by pass stock settings But 7000 grand and higher there are a lot of issues. I would not try it with a stock motor if you do have fun. And I hope you have another motor ready........
Lol no i just saw it and it made me wonder how the hell they were making it do that
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Old 01-06-2012, 02:13 PM   #4
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You can safely turn a stock 2v motor to around 6400-6500 it really depends on if your car is still making power at that rpm.
The Stock cams on a 2v stop making power around 5800-6000. I have stage 2 cams and supercharged my car is still making power on the dyno at 6500. The problem is that the stock bottom is not designed to go much higher than that. Once you go to forged and balanced lighter weight internals you have no problem going higher rpms. My friend has a 98 cobra that he spins to nearly 8200 rpms but is built from oil pan to intake.
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Old 01-06-2012, 02:15 PM   #5
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Originally Posted by Mzilla
You can safely turn a stock 2v motor to around 6400-6500 it really depends on if your car is still making power at that rpm.
The Stock cams on a 2v stop making power around 5800-6000. I have stage 2 cams and supercharged my car is still making power on the dyno at 6500. The problem is that the stock bottom is not designed to go much higher than that. Once you go to forged and balanced lighter weight internals you have no problem going higher rpms. My friend has a 98 cobra that he spins to nearly 8200 rpms but is built from oil pan to intake.
Damn
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Old 01-06-2012, 06:39 PM   #6
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I was gonna say there's nothing wrong with revving over 6k. Just don't get to hard into it and go to 7k. I usually shift around 6200-6300 but I don't hot rod around much so I'm not worried about the motor
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Old 01-08-2012, 11:33 PM   #7
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Yup it's programmer. The can raise ir lower the rev linking in park in drive, in neutral and in every gear.
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Old 01-09-2012, 02:55 AM   #8
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Originally Posted by Gtif
Yup it's programmer. The can raise ir lower the rev linking in park in drive, in neutral and in every gear.
Lol i miss the old days when we had idle screws on the damn carbs
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Old 01-09-2012, 07:12 PM   #9
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Damn spell checker sucks! Lol what the he'll was it typing.?
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Old 01-10-2012, 02:43 AM   #10
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Damn spell checker sucks! Lol what the he'll was it typing.?
What?
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Old 01-10-2012, 08:11 PM   #11
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When it comes to intelligent PCM's, a good programmer will be your best friend, especially when you start tearing into the motor and installing performance cams, bigger injectors, a bigger TB, so on and so forth. Your PCM will freak out if you don't reprogram it with the specs from the new parts, and you'll be able to adjust your rev limiter. SCT makes a pretty good programmer, it checks for trouble codes, looks at live data, and allows you to reprogram the PCM. It's a little expensive though but allows you to do pretty much anything you would need to do with the almighty brain of the car! Lol
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Old 01-10-2012, 08:51 PM   #12
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Re: Rev Limiter?

a tuner can remove that, but by doing that you can 100% screw up your motor and blow it up. Unless the motor is built for it dont do it, the stock limiter is above the stock power peak point so there is no point in even going there.
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Old 01-10-2012, 09:38 PM   #13
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Quote:
Originally Posted by SpectorV
a tuner can remove that, but by doing that you can 100% screw up your motor and blow it up. Unless the motor is built for it dont do it, the stock limiter is above the stock power peak point so there is no point in even going there.
Ya make sure your motor can with stand that kind of rpm and is built for it before you change the rev limiter, nothing like blowing up your motor...
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Old 01-11-2012, 04:44 PM   #14
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Quote:
Originally Posted by SpectorV
a tuner can remove that, but by doing that you can 100% screw up your motor and blow it up. Unless the motor is built for it dont do it, the stock limiter is above the stock power peak point so there is no point in even going there.
+1
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