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Old 01-06-2012, 12:24 PM   #1
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Rev limit

Hat is the highest one should rev to on stock 5.0 i know from factory its like 6800-7000 is it safe to run it to 7200-7300 on stock internals and stock manifold?

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Old 01-06-2012, 12:39 PM   #2
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I don't think you can get that high unless you get rid of the rev limiter. If you did that already, I'm not sure there is anything to gain from going that high on a stock intake manifold (I think power drops off quickly). The boss manifold will give you gains up to ~7800 rpm though...
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Old 01-06-2012, 01:09 PM   #3
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Well i was told that bama tunes are taking the rev up to 7200-7300 rpms on the 93 race tune the question is that safe?
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Old 01-06-2012, 01:16 PM   #4
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Re: Rev limit

Safe? Sure. The stock mani eats crap around 6800 though.
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Old 01-06-2012, 02:02 PM   #5
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With stock manifold and just a tune no reason rev higher then 7000/7100
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Old 01-06-2012, 03:17 PM   #6
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Actually if you're talking about at the track, with bolt ons and 93 tune 7300 was my best shift point. It's where I got my best trap speeds. Power does start to fall off earlier but you make that up by shifting into higher rpm band. I tested it by setting my shift light from 6800-7400 in 100 increments. 7200-7300 is where my car trapped best.
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Old 01-06-2012, 05:32 PM   #7
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Re: Rev limit

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Originally Posted by Black5.0 View Post
Actually if you're talking about at the track, with bolt ons and 93 tune 7300 was my best shift point. It's where I got my best trap speeds. Power does start to fall off earlier but you make that up by shifting into higher rpm band. I tested it by setting my shift light from 6800-7400 in 100 increments. 7200-7300 is where my car trapped best.
He said a stock 5.0. So no bolt ons. If saying bolt ons and running a boss then shifting at 7800 is your best bet. And will net your best times.
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Old 01-06-2012, 05:59 PM   #8
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I was talking about with stock manifold.

---------- Post added at 05:58 PM ---------- Previous post was at 05:57 PM ----------

Just exhaust, cai, and tune. Should of said that, my bad. My point was more about the stick mani

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Stock mani
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Old 01-06-2012, 06:45 PM   #9
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Re: Rev limit

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Originally Posted by Black5.0 View Post
I was talking about with stock manifold.

---------- Post added at 05:58 PM ---------- Previous post was at 05:57 PM ----------

Just exhaust, cai, and tune. Should of said that, my bad. My point was more about the stick mani

---------- Post added at 05:59 PM ---------- Previous post was at 05:58 PM ----------

Stock mani
Will agree with the stock mani and just cold air/tune/exhaust still no real reason to go over 7300 or so.
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Old 01-06-2012, 08:37 PM   #10
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Re: Rev limit

the higher the better.. most don't understand it but even if you rev up to where the power is drastically lower than peak, you're still going to make much more than you would if you were to shift up.

You're also going to hit the next gear closer to peak power than you would if you shifted out earlier.

Of course the boss mani helps you stay in peak through all of this.
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Old 01-06-2012, 09:03 PM   #11
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That's not exactly true. You have to weigh out the hp you're losing vs. What you gain shifting into higher rpm band. As I said, your trap speed is basically directly related to your rpm shift point. For example, and i'm sure this will differ a bit from car to car, but my best trap time was 116 with shift light set at 7300. At 7400 I lost 1/2 mph and at 7500(the highest I took it) I lost 1 mph compared to 7300. So at that point my car wad loosing speed which in turn gives you a slower et.
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