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Old Nov 2, 2005 | 06:49 PM
  #61  
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Originally Posted by Louie83
I feel like I'm the only person that isn't getting this.

How do you know what you can safely raise your redline to, and how do you go about doing it?

IMO, the best way to look @ it is where does the HP curve flatten or start to dive. Running higher RPM's while losing power doesn't make any sense. So, the people you see running higher RPM's continue to make power to that higher engine speed. This can be recorded on a chasis dyno. Generally, there are top end & in some cases bottom end engine mod's. allowing this to happen.

In my case, the car flattens out right @ 6,200 RPM on a mild cam & AFR heads. For this reason, shifts are @ 6,200 RPM & red-line or fuel shut off is @ 6,500 RPM. This would be considered conservative to most people with a head/cam set up. Hope this is helpful.
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Old Nov 2, 2005 | 08:07 PM
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rev limit is at 6700 and i shift at 6600. ive hit 6900 when i had a shift pill go bad on me. with the cam, i am thinking about going 6400/6600
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Old Nov 2, 2005 | 08:27 PM
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Limiter at 6800 with ARP rod bolts.
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Old Nov 2, 2005 | 08:37 PM
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how hard is it to change out rod bolts anyway? not trying to get off topic here, but that seems to be the weak point in the bottom end correct?
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Old Nov 3, 2005 | 02:04 AM
  #65  
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Rev limit set at 6600. A/F starts getting rich after 5500 rpms. A/F, after flooring it, starts out lean (mid to high 13s) from 2k to 3k rpms and richens up around 5500 rpms (GM did that to protect the engine).
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Old Nov 3, 2005 | 08:13 AM
  #66  
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Limiter set at 6900 and I regularly shift 6600-6800.
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Old Nov 3, 2005 | 06:45 PM
  #67  
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Originally Posted by LS1-450
IMO, the best way to look @ it is where does the HP curve flatten or start to dive. Running higher RPM's while losing power doesn't make any sense. So, the people you see running higher RPM's continue to make power to that higher engine speed. This can be recorded on a chasis dyno. Generally, there are top end & in some cases bottom end engine mod's. allowing this to happen.

In my case, the car flattens out right @ 6,200 RPM on a mild cam & AFR heads. For this reason, shifts are @ 6,200 RPM & red-line or fuel shut off is @ 6,500 RPM. This would be considered conservative to most people with a head/cam set up. Hope this is helpful.
Yes that helps, thanks.

How do you know what limit you can raise it to based on your mods before it blows?
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