5th Gear at 3,000 rpm what mph?

Reply Subscribe

Thread Tools

Search this Thread

12-29-2005, 09:22 AM

#41

devilz05

Shift_3.0

iTrader: (2)

Join Date: Nov 2005

Location: central NJ

Posts: 745

Quote:

Originally Posted by steven88

I wonder how its possible for Corvettes with the 6spd to get like 28mpg highway with their huge 6liter engines....I know they run a real long 6th gear...but still...6 liters man! thats twice the size of our engines that get the same mileage as us!

It all has to due with the computer. The car is not using all its power when it is cruising, making it resemble a much smaller engine until that power is needed. Atleast thats what I heard...lol. I dont know the specifics of how it works but as you can see it works well.

12-29-2005, 10:00 AM

#42

Chapman99SE

Member

Join Date: Sep 2005

Posts: 60

thats only on newer vettes, but all 6 speed vettes have a tall enough 6th that the car is turning 1600 rpm or less at 60mph

12-29-2005, 10:42 AM

#43

NmexMAX

dot dot dot ...

iTrader: (22)

Join Date: Dec 2000

Location: Santa Fe, NM

Posts: 34,588

Displacement on demand > *

12-29-2005, 11:02 AM

#44

devilz05

Shift_3.0

iTrader: (2)

Join Date: Nov 2005

Location: central NJ

Posts: 745

Quote:

Originally Posted by NmexMAX

Displacement on demand > *

Its the Best of Both Worlds... Jay Z and R.Kelly style

But seriously, I was reading my Road and Track and the Bugatti Veyron (1001hp) actually has a tach that displays how many of the ponies are being used at any point, pretty neat IMO.

12-29-2005, 02:40 PM

#45

Bobo

Senior Member

Join Date: May 2004

Posts: 6,190

At 70 mph in 5th gear, I am about 2,950 rpms. At 75 mph, I am about 3,100 rpms or perhaps a little more. This is on OEM 15" sawblades with 215-60R-15 new Yokohama Avid H4S tires.

12-29-2005, 03:03 PM

#46

NmexMAX

dot dot dot ...

iTrader: (22)

Join Date: Dec 2000

Location: Santa Fe, NM

Posts: 34,588

Quote:

Originally Posted by Bobo

This is on OEM 15" sawblades with 215-60R-15 new Yokohama Avid H4S tires.

It wouldn't matter if you were on 31" tires, the gauges will still mark the same relation, though your actual speed will be off, it wont reflect on your dash.

12-29-2005, 03:15 PM

#47

steven88

Need A Light?

iTrader: (28)

Join Date: Jan 2003

Location: SoCal, CA

Posts: 8,649

Quote:

Originally Posted by NmexMAX

It wouldn't matter if you were on 31" tires, the gauges will still mark the same relation, though your actual speed will be off, it wont reflect on your dash.

??

thats nice to know...we all learn something new errday don't we?

12-31-2005, 10:41 AM

#48

Bobo

Senior Member

Join Date: May 2004

Posts: 6,190

[
I was suggesting that given my stock setup, my odometer reflects the actual speed!

However, thank you for your incisive feedback. Its appreciated as always, lol!

QUOTE=NmexMAX]It wouldn't matter if you were on 31" tires, the gauges will still mark the same relation, though your actual speed will be off, it wont reflect on your dash.[/QUOTE]

01-24-2006, 10:26 AM

#49

KT2002

Junior Member

Join Date: Jan 2006

Posts: 28

Mine is around 75

01-24-2006, 12:39 PM

#50

tomservo291

Senior Member

Join Date: Jul 2004

Posts: 731

Quote:

Originally Posted by BigLou93SE

Yup, one of my complaints about the Maxima. I can only imagine the gas mileage I would acheive on the highway if I didn't cruise at 3-3.5k rpms.

I only drive 80mph (roughly 3200-3300RPM) in 5th on the highway everyday... Each time I go on a trip to maine or new hampshire (skiing, hiking whatever) I do my best to take accurate measurements of mileage. My last trip to maine this past summer I averaged 29mph on the highway! To me that's great gas mileage for a 3.0l six cylinder...

My previous first car (beater,) a '94 eclipse (base model, 5MT) was closer to 4k at 80mph... then again that was a 1.8l four cylinder, so who knows...

01-24-2006, 12:43 PM

#51

tomservo291

Senior Member

Join Date: Jul 2004

Posts: 731

Quote:

Originally Posted by steven88

chevy pushrod design engines get much better mileage then most dohc "japenese" engines, generally speaking. don't get me long, I would take a VQ over any chevy engine any day (except maybe the new z06,) for reliability, longevity etc etc... it's a finer tuned machine that will last a long long time.