09-25-2009, 09:52 PM
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#145
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Reher Morrison Racing
Drives: Inferno Orange SS/RS
Join Date: Jul 2009
Location: Arlington TEXAS
Posts: 249
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Quote:
Originally Posted by Desert Rider
Darin,
My first post, but here goes. My LS-3 arrives in two weeks. I live in the Four Corners and so will be breaking in the engine at 5,500-6,500 ft elevation. I plan to find a long hill to climb (over and over), on a 4-lane road w/ 70 mph limit.
Do you recommend any changes in your "normal" break-in procedure (described above)?
Also, since I won't develop as much engine HP with only 11.73 psia ambient air pressure, do I need to run high octane (91 here) fuel? Would lower octane fuel (87) reduce engine output at this elevation? Any other impacts from low ambient air pressure?
Thanks,
DR
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Yes climb the hill but dont get your trans temps to high. Dont stay into a hard load for long durations of time over five minutes. At 6500ft elevation your down on power by roughly 25%. Maybe a little longer harder load scenario is just what you need! Just dont over do it.
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2010 Camaro SS/RS IOM, 475rwhp 415ft/lbs Cam-232°/245° .612 .612 113LSA. Precision 3500 stall, New Era CAI. Reher Morrison Heads, Manifold and TB. Ferrea H-stems, dual springs, Ti-retainers. American Racing long tubes-Xpipe, High flow CATs, "S"type Borla's. 160F Thermo.
VVT ACTIVE! Thanks to New Era Performance! 
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