04-27-2024, 06:25 PM | #1 |
Drives: 2023 CT5 Blackwing Join Date: Sep 2016
Location: Denver
Posts: 1,620
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Compensate for altitude?
Moving from sea level to Denver.
Contemplating a pulley switch (from OEM 2.5" to 2.3") to attempt to recoup some of the lost power. Any other ideas I should be looking at? I don't want to tune. Thanks.
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05-10-2024, 03:49 PM | #2 | |
Drives: BLUE CAMARO ZL1 1LE M6 Join Date: Jun 2009
Location: ON THE DYNO WATERBURY CT.
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Quote:
We carry ATI if that helps.
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05-10-2024, 04:19 PM | #3 |
Served USN - Atomic Chimp
Drives: 13 Camaro LSX434 TT M6, 21 ZLE A10 Join Date: Jul 2012
Location: Fort Collins, CO
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The correction factor in Denver is about 1.20 - yes, that's a heap of HP loss sucking this thin air up here.
Most ideas to make up for that lost 115whp are: headers, throttle body, E85, S/C porting. And, most of those require a tune to get fueling right (if you already have fueling available).
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In excess of 1,000WHP LSX434 | AGP 65/65 TT | BTR Equalizer Intake | Trickflow 245cc cathedral | BTR custom cam | Cortex EBC | n2mb WOT | ID-1700x | Brisk GR12S | RPM Lv 7 TR6060 | AGP's Triple 525LPH Fore Fuel | Monster LT1-S Triple | 4.11 DSS Proform 9", CF driveshaft, 1400hp axles | Hurst Line Lock | MGW Retro Short Throw w/old skool Hurst T-handle | ADM solid subframe mounts | Prothane Motor Mounts | Revshift Poly Trans insert | Moreno camber/caster plates |
05-10-2024, 08:50 PM | #4 | |
Drives: 2023 CT5 Blackwing Join Date: Sep 2016
Location: Denver
Posts: 1,620
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Quote:
Thanks for the reply. It's actually for the Blackwing. I can do everything on your list except the E85 without a tune. The Blackwing has OEM Wideband O2 sensors and a much faster ECU. Is E85 avail in the Denver area? I'm down south in Parker.
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2017 HBM SS 1LE
Sold 2023 Wave Metallic CT5-V Blackwing M6 |
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05-10-2024, 10:04 PM | #5 |
Served USN - Atomic Chimp
Drives: 13 Camaro LSX434 TT M6, 21 ZLE A10 Join Date: Jul 2012
Location: Fort Collins, CO
Posts: 1,608
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Yes, I've heard folks say the get some and some places are better than others. There's probably places around Parker and that neighborhood. Download the GasBuddy app and look for E85 on it (near you).
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In excess of 1,000WHP LSX434 | AGP 65/65 TT | BTR Equalizer Intake | Trickflow 245cc cathedral | BTR custom cam | Cortex EBC | n2mb WOT | ID-1700x | Brisk GR12S | RPM Lv 7 TR6060 | AGP's Triple 525LPH Fore Fuel | Monster LT1-S Triple | 4.11 DSS Proform 9", CF driveshaft, 1400hp axles | Hurst Line Lock | MGW Retro Short Throw w/old skool Hurst T-handle | ADM solid subframe mounts | Prothane Motor Mounts | Revshift Poly Trans insert | Moreno camber/caster plates Last edited by dreksnot; 05-11-2024 at 03:22 PM. |
05-11-2024, 08:24 AM | #6 |
Drives: '20 ZLE Join Date: Jun 2020
Location: Mile High
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You're going to lose 130 bhp or more on a stock LT4. You can't recover that unless you make some of the mods discussed here daily. An E85 Flex Fuel kit and a tune are probably the least expensive ways to regain power. You can spin your blower faster too but additional heat will be a problem.
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