How Hight you think she can rev
05-26-2010, 09:20 PM
#4
5th Gear Member
Join Date: Jun 2007
Location: Decatur AL USA
Posts: 2,176
Engineers claimed the bottom end was good for 8000 rpm at the intro but the cast (hypereutectic) pistons and factory rods would make me plenty nervous.
As stated the Boss R1 is turning 8300 rpm with a supposedly "stock" valvetrain.
Im planning on 7350/7500 for the soft/hard limiters when I get the tune but then I ran the 4.6L 3V limiter at 7250 rpm so Im used to playing with fire.
Last edited by Gene K; 05-26-2010 at 09:22 PM.
05-26-2010, 11:32 PM
#6
3rd Gear Member
Join Date: May 2005
Location:
Posts: 632
unless it's making or holding power past 7000 rpm, there's little to no point. Even with a tune, it's doubtful you'll get meaningful power improvements above 7000 rpms. A dyno will answer that question for us all soon enough I'm sure.
Short of "holding the gear" for 1/4 mile runs if you are close to the stripe and don't want to make the shift or at a track and don't want to shift mid corner, there is no reason for extra revs if there isn't more power. If you are on the down slope of the power curve by more than a couple hundred rpms, all you are doing is slowing yourself down.
It's a different story with upgrades cams, headers, etc.
You will make more power in higher rpms then and it's an advantage.
Short of "holding the gear" for 1/4 mile runs if you are close to the stripe and don't want to make the shift or at a track and don't want to shift mid corner, there is no reason for extra revs if there isn't more power. If you are on the down slope of the power curve by more than a couple hundred rpms, all you are doing is slowing yourself down.
It's a different story with upgrades cams, headers, etc.
You will make more power in higher rpms then and it's an advantage.
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