Mike "Wuzzy121". Rest in peace, brother

Go Back   Tacoma World Forums > Tacoma Garage > 4 Cylinder

Notices

2.7l is weak, should I regear???

Reply
 
Thread Tools Search this Thread
Old 04-25-2012, 05:56 AM   #1
Member
00PreRunner is on a distinguished road
 
00PreRunner's Avatar
Joined: Nov 2010, #45631
Location: New Albany, MS
Gender: Guy
Posts: 90
00PreRunner's Tacoma Gallery
2.7l is weak, should I regear???

I have a 2000 Prerunner with the 2.7l and auto tranny. The truck is very weak off idle and gets bad gas mileage around town. A friend has a set of 4.30's I can use to swap out my 3.91's. My question is how high will my rpms be going down the interstate and how off will my speedo be? Thanks
  Reply With Quote
Old 04-25-2012, 06:30 AM   #2
The Polar Bear
Devux is on a distinguished road
 
Devux's Avatar
Name: Devin
Joined: Oct 2011, #65267
Location: Las Vegas, NV
Age: 25
Gender: Male
Posts: 56
Devux's Tacoma Gallery
I can't quantify anything for you but in general going from a 3.91 to a 4.30 your performance (acceleration distance) will increase, your fuel mileage is going to drop, and your highway RPMs are going to be higher.
If you're looking for a performance increase it might be worth looking into a good exhaust system, intake, hot ignition and high performance plugs and plug wires. My dad did a mild tune to his '98 Rodeo (4 Cylinder), it gave it a bit more oomph, he's happy with it. Better than messing with the rear gear in my opinion.
  Reply With Quote
Old 04-25-2012, 06:32 AM   #3
Member
00PreRunner is on a distinguished road
 
00PreRunner's Avatar
Joined: Nov 2010, #45631
Location: New Albany, MS
Gender: Guy
Posts: 90
00PreRunner's Tacoma Gallery
Thanks for the advice. I'd much rather look into exhaust and intakes then gears.
  Reply With Quote
Old 04-25-2012, 05:44 PM   #4
Senior Member
afd23a is one of the sharper tools in the shedafd23a is one of the sharper tools in the shedafd23a is one of the sharper tools in the shedafd23a is one of the sharper tools in the shedafd23a is one of the sharper tools in the shedafd23a is one of the sharper tools in the shedafd23a is one of the sharper tools in the shedafd23a is one of the sharper tools in the shedafd23a is one of the sharper tools in the shedafd23a is one of the sharper tools in the shedafd23a is one of the sharper tools in the shed
 
afd23a's Avatar
Joined: Sep 2008, #9483
Location: The Dynamo of Dixie
Gender: Male
Posts: 1,799
afd23a's Tacoma Gallery
try this website http://www.grimmjeeper.com/gears.html

You'll have to look up the gears in your transmission, but it's seems pretty accurate
  Reply With Quote
Old 04-25-2012, 06:01 PM   #5
Senior Member
worthywads is one of the sharper tools in the shedworthywads is one of the sharper tools in the shedworthywads is one of the sharper tools in the shedworthywads is one of the sharper tools in the shedworthywads is one of the sharper tools in the shedworthywads is one of the sharper tools in the shedworthywads is one of the sharper tools in the shedworthywads is one of the sharper tools in the shedworthywads is one of the sharper tools in the shedworthywads is one of the sharper tools in the shedworthywads is one of the sharper tools in the shed
 
worthywads's Avatar
Joined: Jun 2011, #58841
Location: Peoples Republic of Boulder
Gender: Male
Posts: 3,227
worthywads's Tacoma Gallery
The math is really simple.

Current rpm times 4.30/3.91 or 1.1


If you are 2500 at 60 now you will be 2500 * 1.1 = 2750.
  Reply With Quote
Old 04-26-2012, 05:58 AM   #6
Member
00PreRunner is on a distinguished road
 
00PreRunner's Avatar
Joined: Nov 2010, #45631
Location: New Albany, MS
Gender: Guy
Posts: 90
00PreRunner's Tacoma Gallery
Thanks for the help. I'm adding cruise control here in a few days. I'll see if that makes a difference.
  Reply With Quote
Old 04-26-2012, 07:08 PM   #7
Senior Member
tan4x4 is one of the sharper tools in the shedtan4x4 is one of the sharper tools in the shedtan4x4 is one of the sharper tools in the shedtan4x4 is one of the sharper tools in the shedtan4x4 is one of the sharper tools in the shedtan4x4 is one of the sharper tools in the shedtan4x4 is one of the sharper tools in the shedtan4x4 is one of the sharper tools in the shedtan4x4 is one of the sharper tools in the shedtan4x4 is one of the sharper tools in the shedtan4x4 is one of the sharper tools in the shed
 
tan4x4's Avatar
Name: Rick
Joined: Nov 2011, #67982
Location: Folsom, CA
Age: 59
Gender: Male
Posts: 1,504
tan4x4's Tacoma Gallery
I have a 2.7 with automatic, and it has 4.56 gears from the factory.
Are you sure you have 3.91's? What is your axle code on the door jamb?
  Reply With Quote
Old 04-26-2012, 07:14 PM   #8
Almost there
08pretaco is one of the sharper tools in the shed08pretaco is one of the sharper tools in the shed08pretaco is one of the sharper tools in the shed08pretaco is one of the sharper tools in the shed08pretaco is one of the sharper tools in the shed08pretaco is one of the sharper tools in the shed08pretaco is one of the sharper tools in the shed08pretaco is one of the sharper tools in the shed08pretaco is one of the sharper tools in the shed08pretaco is one of the sharper tools in the shed08pretaco is one of the sharper tools in the shed
 
08pretaco's Avatar
Name: Oliver
Joined: Sep 2008, #9502
Location: az
Age: 25
Gender: Dude
Posts: 9,166
08pretaco's Tacoma Gallery
have you done a head to toe tune-up on the motor/vehicle?
  Reply With Quote
Old 04-30-2012, 05:49 AM   #9
Member
00PreRunner is on a distinguished road
 
00PreRunner's Avatar
Joined: Nov 2010, #45631
Location: New Albany, MS
Gender: Guy
Posts: 90
00PreRunner's Tacoma Gallery
The code on the door is B06A. From what I can tell, that means it has an 8" diff, 3.91's, and an open rear end. And no I haven't tuned it.
  Reply With Quote
Old 05-01-2012, 10:40 AM   #10
Dangerous
ronman737 is one of the sharper tools in the shedronman737 is one of the sharper tools in the shedronman737 is one of the sharper tools in the shedronman737 is one of the sharper tools in the shedronman737 is one of the sharper tools in the shedronman737 is one of the sharper tools in the shedronman737 is one of the sharper tools in the shedronman737 is one of the sharper tools in the shedronman737 is one of the sharper tools in the shedronman737 is one of the sharper tools in the shedronman737 is one of the sharper tools in the shed
 
ronman737's Avatar
Name: Ron
Joined: Jan 2011, #49846
Location: Greenville, SC
Gender: Guy
Posts: 1,260
ronman737's Tacoma Gallery
Quote:
Originally Posted by 00PreRunner View Post
The code on the door is B06A. From what I can tell, that means it has an 8" diff, 3.91's, and an open rear end. And no I haven't tuned it.
New spark plugs(platinum or iridium), Afe pro dry or K&N air filter. I bet you will feel a difference. Also, do the seafoam mod. 1/3 bottle in the gas tank,1/3 in the oil (pre oil change, ride on it for about 1000 miles to let it do some work) 1/3 bottle in the intake manifold. Ill try to find the thread on it for you.
  Reply With Quote
Old 05-01-2012, 10:43 AM   #11
"Pick up some speed.. You'll make it."
BuzzardsGottaEat is one of the sharper tools in the shedBuzzardsGottaEat is one of the sharper tools in the shedBuzzardsGottaEat is one of the sharper tools in the shedBuzzardsGottaEat is one of the sharper tools in the shedBuzzardsGottaEat is one of the sharper tools in the shedBuzzardsGottaEat is one of the sharper tools in the shedBuzzardsGottaEat is one of the sharper tools in the shedBuzzardsGottaEat is one of the sharper tools in the shedBuzzardsGottaEat is one of the sharper tools in the shedBuzzardsGottaEat is one of the sharper tools in the shedBuzzardsGottaEat is one of the sharper tools in the shed
 
BuzzardsGottaEat's Avatar
Marines: 3rd Battalion, 1st Marines
Name: Chaz
Joined: Apr 2011, #55669
Location: Nebraska/South Dakota
Age: 26
Gender: Guy
Posts: 5,399
BuzzardsGottaEat's Tacoma Gallery
I second the tune up. And if that's not sufficient the intake/exhaust options. . .
  Reply With Quote
Old 05-01-2012, 11:10 AM   #12
Senior Member
Trifenix is one of the sharper tools in the shedTrifenix is one of the sharper tools in the shedTrifenix is one of the sharper tools in the shedTrifenix is one of the sharper tools in the shedTrifenix is one of the sharper tools in the shedTrifenix is one of the sharper tools in the shedTrifenix is one of the sharper tools in the shedTrifenix is one of the sharper tools in the shedTrifenix is one of the sharper tools in the shedTrifenix is one of the sharper tools in the shedTrifenix is one of the sharper tools in the shed
 
Trifenix's Avatar
Joined: Jan 2011, #49090
Location: so cal
Gender: Male
Posts: 1,221
Trifenix's Tacoma Gallery
Usually only regear if you are running larger tires. Do a tune up.seafoam. aftermarket air filter. Your truck is just slow. Buy a v6 or v8.
  Reply With Quote
Old 05-01-2012, 12:11 PM   #13
Dangerous
ronman737 is one of the sharper tools in the shedronman737 is one of the sharper tools in the shedronman737 is one of the sharper tools in the shedronman737 is one of the sharper tools in the shedronman737 is one of the sharper tools in the shedronman737 is one of the sharper tools in the shedronman737 is one of the sharper tools in the shedronman737 is one of the sharper tools in the shedronman737 is one of the sharper tools in the shedronman737 is one of the sharper tools in the shedronman737 is one of the sharper tools in the shed
 
ronman737's Avatar
Name: Ron
Joined: Jan 2011, #49846
Location: Greenville, SC
Gender: Guy
Posts: 1,260
ronman737's Tacoma Gallery
http://www.tacomaworld.com/forum/1st...0-seafoam.html
post 36!
  Reply With Quote
Old 05-02-2012, 05:45 AM   #14
Member
00PreRunner is on a distinguished road
 
00PreRunner's Avatar
Joined: Nov 2010, #45631
Location: New Albany, MS
Gender: Guy
Posts: 90
00PreRunner's Tacoma Gallery
Thanks for the seafoam link
  Reply With Quote
Reply

Thread Tools Search this Thread
Search this Thread:

Advanced Search

Similar Threads
Thread Thread Starter Forum Replies Last Post
2.7L auto weak with error code p0402 "EGR EXCESSIVE FLOW" outlaw8950 1st Gen. Tacomas 20 10-07-2014 07:51 AM
Regear Tacokevin North East 4 12-01-2011 10:22 AM
Differences: 1997 2.7L vs 2001 2.7L cab4you26 1st Gen. Tacomas 5 05-19-2011 09:07 AM
2TR w/33's and regear/no regear info wanted 08pretaco 4 Cylinder 147 01-29-2011 02:01 PM
03 2.7l vs 09 2.7l glockaxis 4 Cylinder 11 08-17-2009 06:17 AM


Copyright © 2014 Tacoma Forum. Tacoma World is not owned by, or affiliated with Toyota Motor Corporation.