80 mph = 3,000 rpm
Originally Posted by joseph109783
I didnt understand the whole gear ratio thing. now that it was explained to me I understand.
Registered User
Joined: May 2005
Posts: 17
Likes: 0
From: Houston
Originally Posted by joseph109783
Driving the z I noticed that when going 80mph the rpms are at 3,000.
Originally Posted by KwanZito
I think tire size factors into your final drive ratio also, right?
Total final drive ratio = transmission ratio X final drive ratio.
So for the manual transmission in 6th gear we have: 0.794:1 X 3.538:1 = 2.809:1.
Thread Starter
Registered User
Joined: Oct 2005
Posts: 90
Likes: 0
From: long island ny
Originally Posted by Medpilot
I'll admit that does seem a little high compared to other cars of the same caliber. But on the other hand you can figure that 80mph@3k translates into 160mph@6k.
Originally Posted by joseph109783
Maybe this has been answered b4. does this mean that the engine is capable of making 206.5 mph at 7,200 rpm?
With no drag from the car, no drive train loss and no tire slippage...
Registered User
Joined: Mar 2006
Posts: 28
Likes: 0
From: sacramento, ca
my 05 6mt g35 sedan hits 3000 rpms at 80 mph in 6th gear....
my 2k2 6spd maxima hits 2600-2700 rpms at 80 mph (90mph at 3k rpms) in 6th gear....
result:
maxima has better fuel economy due to the taller 6th gear...but takes longer to accelerate to 90+ in 6th gear... maxima only has injen intake installed...
g35 goes from 80mph to 90+mph in 6th gear in half the time with half the effort, if trying to conserve gas...(cruising in sweet power band range) otherwise i drop it to 5th(or 4th if need for speed is calling) and blow past 70mph traffic like they're standing still....especially with z-tube w/ amsoil nano drop-in, mrev+, and hks rear sport muffler...
yeah gearing makes a difference and so does torque for accelerating at hi speed...
don't be pissed.... lower displacement 4 bangers are at 4k+rpms when doing 80mph because they need the hi-rev power to stay there due to their gearing...
you want 2k rpm at 80mph, get a v8 like a vette...
just my 2 cents...
my 2k2 6spd maxima hits 2600-2700 rpms at 80 mph (90mph at 3k rpms) in 6th gear....
result:
maxima has better fuel economy due to the taller 6th gear...but takes longer to accelerate to 90+ in 6th gear... maxima only has injen intake installed...
g35 goes from 80mph to 90+mph in 6th gear in half the time with half the effort, if trying to conserve gas...(cruising in sweet power band range) otherwise i drop it to 5th(or 4th if need for speed is calling) and blow past 70mph traffic like they're standing still....especially with z-tube w/ amsoil nano drop-in, mrev+, and hks rear sport muffler...
yeah gearing makes a difference and so does torque for accelerating at hi speed...
don't be pissed.... lower displacement 4 bangers are at 4k+rpms when doing 80mph because they need the hi-rev power to stay there due to their gearing...
you want 2k rpm at 80mph, get a v8 like a vette...
just my 2 cents...
Originally Posted by joseph109783
Maybe this has been answered b4. does this mean that the engine is capable of making 206.5 mph at 7,200 rpm?
Last edited by davidv; Mar 28, 2006 at 01:29 PM.
Registered User
Joined: Apr 2005
Posts: 548
Likes: 0
From: Scottsdale, AZ
Originally Posted by boma
Corvette's 6th gear is only at like 2,100rpm at like 80mph.
That's why the gas mileage on it is almost as good as the 350Z.
That's why the gas mileage on it is almost as good as the 350Z.
It's much better then the Z. The Vette is the benchmark for performance/gas mileage ratio.
Originally Posted by boma
Corvette's 6th gear is only at like 2,100rpm at like 80mph.
That's why the gas mileage on it is almost as good as the 350Z.
That's why the gas mileage on it is almost as good as the 350Z.
Originally Posted by 350zQ45a
The Vette is the benchmark for performance/gas mileage ratio.
Last edited by spacemn_spiff; Mar 29, 2006 at 07:55 AM.
Registered User
Joined: Apr 2005
Posts: 548
Likes: 0
From: Scottsdale, AZ
Originally Posted by spacemn_spiff
Only when you are cruising in in the higher gear, not when you are driving it hard.
Sorry still better then the Z.
Probably will always be, unless they move over to cams
Master
Joined: Nov 2004
Posts: 2,517
Likes: 0
From: California
So, go out and get an auto final Drive installed on your MT, when doing 80 im around 2500rpms (+- 200rpms)
2nd tops out at 65
3rd tops out at 90+
I cruise on the freeway in 4th around 2800 rpms doing 65
2nd tops out at 65
3rd tops out at 90+
I cruise on the freeway in 4th around 2800 rpms doing 65
Originally Posted by 350zQ45a
Sorry still better then the Z.
Probably will always be, unless they move over to cams
Probably will always be, unless they move over to cams
Corvette:
6.0L LS2 V8 six-speed manual transmission 18/28
7.0 LS7 V8 six-speed manual transmission 16/27
03-05 Z: six-speed manual transmission 20/26. Do think 18>20?
Mind you these are EPA figures, I dont know aggressive is their city driving, V8 is going to glug more than a V6 with respective displacements.
Thread
Thread Starter
Forum
Replies
Last Post
MAsSIVrOOM
Engine & Drivetrain
2
Oct 20, 2023 10:50 AM
etkms
Engine & Drivetrain
29
Jun 19, 2022 06:30 PM
Justin100
Intake Exhaust
26
Nov 29, 2015 03:58 PM
CrowzRSA
Maintenance & Repair
6
Sep 21, 2015 04:00 PM
FromGtoZ
Intake Exhaust
2
Sep 20, 2015 03:41 PM
