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Old 04-15-2020, 01:33 AM   #50 (permalink)
Tahoe_Hybrid
Master EcoModder
 
Join Date: May 2019
Location: California
Posts: 513

2020 - '08 Chevy Tahoe H
Last 3: 18.4 mpg (US)

2021 - '08 Chevy Tahoe H
90 day: 17.08 mpg (US)

2022 - '08 chevy Tahoe LT
Last 3: 14.38 mpg (US)

2023 - '08 Chevy Tahoe
Last 3: 22.61 mpg (US)

2024 - '08 Chevy Tahoe
90 day: 22.35 mpg (US)
Thanks: 2
Thanked 105 Times in 96 Posts
Quote:
Originally Posted by Ecky View Post
Just read about this transmission - turns out it isn't a 4 speed auto! At least, in typical operation it isn't. It has three orbital gearsets, similar to how a Prius works, and no torque converter.

https://www.caranddriver.com/reviews...rid-road-test/




The fixed ratios are as follows:

CVT1 - 0-1.70
CVT2 - 1.70-0.50
1st - 3.69
2nd - 1.7
3rd - 1.0
4th - 0.73
Rear ratio : 3.08

In 4th gear it's turning 1800rpm @ 75mph - which is still pretty great! However this is not how it typically operates. When running continuously variable ratios (which is whenever the batteries aren't completely flat) it can drop down to as low as 1230rpm at 75mph.
I was able to run it at 1850rpm at about 85mph in v4 mode too bad it's goved to 95MPH..


my IAT/MAF is malfunctioning... I was recording a intake temp of 80degrees when it was 57F on a stone cold dead start (Engine was not running right funky idle ) today it was the correct temp, so that pretty much rules it's faulty IAT/MAF combo....

Last edited by Tahoe_Hybrid; 04-15-2020 at 01:39 AM..
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