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-   -   Hypermiling the Chevy Tahoe 6.0L v8 40MPG! :O (https://ecomodder.com/forum/showthread.php/hypermiling-chevy-tahoe-6-0l-v8-40mpg-o-37527.html)

Tahoe_Hybrid 05-25-2019 11:48 PM

Hypermiling the Chevy Tahoe 6.0L v8 40MPG! :O
 
Yes it's the Hybrid version

Hitting 39.9MPG in my city

Setting cruse control set to 41MPH...


going from 0 to 30 on electric(which is the MAX before it automatically starts the motor) then getting to 41MPH and setting the cruse control.. is Yielding 39.9MPG in MY city...


I have not done any mods to it


The highway is a different story it's producing 27.8MPG... at 59MPH with cruse control... :snail::snail::snail::snail:

I use 91 Octane Fuel as it keeps 4th gear longer with minimal down shift to 3rd gear on The freeway

I did tailgate a 18 wheeler W/trailer tail was yielding 65Miles per gallon ( the insist gauge was bouncing between 65 and 99 MPG) V4 mode


18 wheelers WITHOUT Trailer-tail yield NO benefit ZERO benefit...

deafonic 05-27-2019 05:06 PM

I wonder if you could get a second battery pack from a junkyard and double up the electrical power?

mpg_numbers_guy 05-27-2019 11:45 PM

Quote:

Originally Posted by deafonic (Post 598974)
I wonder if you could get a second battery pack from a junkyard and double up the electrical power?

You'd have to hack into the BCM and other computers to make it recognize and use the second battery pack without throwing any codes. That in itself would be pretty complicated. As with most things I'm sure it's possible, but at what cost.

oil pan 4 05-28-2019 01:17 AM

Our 2018 hybrid hyundai sonata will switch over to electric at about 80mph on level ground.
Too bad chevy uses such tiny motors.

Going to do any mods?

Tahoe_Hybrid 05-30-2019 07:03 AM

Quote:

Originally Posted by oil pan 4 (Post 598997)
Our 2018 hybrid hyundai sonata will switch over to electric at about 80mph on level ground.
Too bad chevy uses such tiny motors.

Going to do any mods?

120KW total (two 60kw motors 80hp)
the total combined output is 379HP 472 ft-lb Torque :cool:

very tiny electric motors? :rolleyes:

hyundai sonata = 38 kW electric motor

Vman455 05-30-2019 11:53 AM

You can't just add everything together to get a total maximum output. Chevrolet's ratings for that drivetrain are 332 hp at 5100 rpm/367 lb-ft at 4100 rpm.

The Sonata weighs almost exactly 1 ton less than the Tahoe hybrid and has less than half the drag area--so there's not much usefulness in comparing motor power directly.

oil pan 4 05-30-2019 01:12 PM

That sucks that the hybrid portion on the Tahoe cuts out at 41mph.
I would rather have a smaller motor that can be used all the time than bigger ones that I can only use in stop and go traffic and in town.
Unless it's being used to deliver mail, there's almost no point.

Tahoe_Hybrid 05-31-2019 12:32 AM

Quote:

Originally Posted by oil pan 4 (Post 599178)
That sucks that the hybrid portion on the Tahoe cuts out at 41mph.
I would rather have a smaller motor that can be used all the time than bigger ones that I can only use in stop and go traffic and in town.
Unless it's being used to deliver mail, there's almost no point.

no it does not it will still run parallel EV is only 29MPH then cuts to mixed mode


Engine is Required to run at 29MPH or in reverse gear or Manual Mode
NEUTRAL can be in auto stop.....


I wish it would kick in at 40-45 that would be ideal.. for my area

in the hybrid graphic it shows the electric motors doing something at higher speeds 80-90mph..(but rarely take it above 70MPH) as not to wear out the transmission planetary gears.


the other thing I hate is I can't go normal speed to get to 30mph

mpg_numbers_guy 05-31-2019 01:37 PM

The car is a hybrid, not a plug in hybrid, right? They aren't designed to go extended distances on electricity alone. :)

Remember that any electricity used has to be made up by an increased load on the engine, which is often less efficient that just using that gasoline to power the wheels. ∞ MPG at < 30 MPH in EV mode means reduced economy at higher speeds when the engine has to work harder to recharge the battery.

Tahoe_Hybrid 06-01-2019 04:17 AM

Quote:

Originally Posted by mpg_numbers_guy (Post 599248)
The car is a hybrid, not a plug in hybrid, right? They aren't designed to go extended distances on electricity alone. :)

Remember that any electricity used has to be made up by an increased load on the engine, which is often less efficient that just using that gasoline to power the wheels. ∞ MPG at < 30 MPH in EV mode means reduced economy at higher speeds when the engine has to work harder to recharge the battery.

regen only works from braking or coasting or if you let the engine idle (according to the infotainment screen\)


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