Average RPM's

91_mr2_boi · 11-05-2009, 05:16 PM

What's the average RPM's in 5th gear for an n/a. I'm getting a little over 3k in 5th. I just got my transmission swapped so I was wondering what the average is. THANKS!

Tri-C · 11-05-2009, 05:43 PM

IIRC, my NA ran a hair over 3K at 65 mph. If ever a car needed a sixth gear, this is it!

kbrew8991 · 11-05-2009, 05:50 PM

you turn some revs with these cars on the highway, they're built for it though and still get pretty decent mileage

91_mr2_boi · 11-05-2009, 06:08 PM

ya i was like wow... 3k in 5th lolol.. can't throw a sixth gear in there or else i'll be squeeling backwards :P

MrMatson · 11-06-2009, 02:24 AM

been gettin about 3800 rpm on the freeway at about 80mph. Still about 28 or so mpg

mr3 · 11-06-2009, 08:05 AM

My 87 gets worse gas mileage on the highway then it does around town. I usually run between 3000 rpms and 4000. Lowest I've gotten was 28 mpg. I love my 4 banger.

CJMR2T · 11-06-2009, 10:21 AM

Its supposed to be that way. Most manufactures gear the trans to but the engine in and an area of peak efficiency (i.e. around peak torque) while cruising at hwy way speeds.

Running down the hwy at a lower RPM will most of the time end up getting you worse fuel milage cause you will be loading the engine heavier due to it being outside of its peak efficiency range.

11-05-2009, 05:16 PM	#1 (permalink)
91_mr2_boi Cage Fighter Join Date: Mar 2008 Location: Yorktown, VA Posts: 325 Thanks: 0 Thanked 7 Times in 6 Posts iTrader Rating: (0/0% )	Average RPM's What's the average RPM's in 5th gear for an n/a. I'm getting a little over 3k in 5th. I just got my transmission swapped so I was wondering what the average is. THANKS!

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11-05-2009, 05:43 PM	#2 (permalink)
Tri-C Cage Fighter Join Date: Jun 2009 Location: Columbus, Ohio Posts: 119 Thanks: 1 Thanked 1 Time in 1 Post iTrader Rating: (1/100% )	IIRC, my NA ran a hair over 3K at 65 mph. If ever a car needed a sixth gear, this is it!

11-05-2009, 05:50 PM	#3 (permalink)
kbrew8991 gimme some turns Join Date: Apr 2006 Location: Houston, TX Posts: 1,685 Thanks: 76 Thanked 82 Times in 70 Posts My Google Map iTrader Rating: (5/100% )	you turn some revs with these cars on the highway, they're built for it though and still get pretty decent mileage

11-05-2009, 06:08 PM	#4 (permalink)
91_mr2_boi Cage Fighter Join Date: Mar 2008 Location: Yorktown, VA Posts: 325 Thanks: 0 Thanked 7 Times in 6 Posts iTrader Rating: (0/0% )	ya i was like wow... 3k in 5th lolol.. can't throw a sixth gear in there or else i'll be squeeling backwards :P

11-06-2009, 02:24 AM	#5 (permalink)
MrMatson No Skills Join Date: Aug 2009 Posts: 2 Thanks: 0 Thanked 0 Times in 0 Posts iTrader Rating: (0/0% )	been gettin about 3800 rpm on the freeway at about 80mph. Still about 28 or so mpg

11-06-2009, 08:05 AM	#6 (permalink)
mr3 unskilled Join Date: Jun 2008 Location: Plymouth Mtg, Pa Posts: 2,406 Thanks: 24 Thanked 98 Times in 93 Posts iTrader Rating: (7/100% )	My 87 gets worse gas mileage on the highway then it does around town. I usually run between 3000 rpms and 4000. Lowest I've gotten was 28 mpg. I love my 4 banger.

11-06-2009, 10:21 AM	#7 (permalink)
CJMR2T Fabricator Join Date: Oct 2009 Location: Lakeland, FL Posts: 3,675 Thanks: 3 Thanked 353 Times in 335 Posts iTrader Rating: (4/100% )	Its supposed to be that way. Most manufactures gear the trans to but the engine in and an area of peak efficiency (i.e. around peak torque) while cruising at hwy way speeds. Running down the hwy at a lower RPM will most of the time end up getting you worse fuel milage cause you will be loading the engine heavier due to it being outside of its peak efficiency range.