Mike "Wuzzy121". Rest in peace, brother

Go Back   Tacoma World Forums > Tacoma Garage > Performance and Tuning

Notices

New 4.56 gears on 285/70/17s, do I need a ECU update?

Reply
 
Thread Tools Search this Thread
Old 07-10-2011, 08:51 AM   #1
trianimal [OP] trianimal is offline
Certified
trianimal is on a distinguished road
 
trianimal's Avatar
Army: SF & RGR 18Z5VW8
Joined: Feb 2009, #13395
Location: TX
Gender: Male
Posts: 50
trianimal's Tacoma Gallery
New 4.56 gears on 285/70/17s, do I need a ECU update?

Hey y'all, I'm calling on the collective brain-trust to assist me. My question is after installing the new gears should I try to re-flash the ECU? My speedometer and tachometer read 2200 rpm @ 60 mph and the shift points during hard acceleration rev up to about 5500 rpm. So, is this normal after re-gearing or should I continue to pursue other options?

Gracias Muchacos
  Reply With Quote
Old 07-10-2011, 09:00 AM   #2
trianimal [OP] trianimal is offline
Certified
trianimal is on a distinguished road
 
trianimal's Avatar
Army: SF & RGR 18Z5VW8
Joined: Feb 2009, #13395
Location: TX
Gender: Male
Posts: 50
trianimal's Tacoma Gallery
Quote:
Originally Posted by trianimal View Post
Hey y'all, I'm calling on the collective brain-trust to assist me. My question is after installing the new gears should I try to re-flash the ECU? My speedometer and tachometer read 2200 rpm @ 60 mph and the shift points during hard acceleration rev up to about 5500 rpm. So, is this normal after re-gearing or should I continue to pursue other options?

Gracias Muchacos
Anyone?
  Reply With Quote
Old 07-10-2011, 09:06 AM   #3
With sufficient thrust, pigs fly just fine.
chris4x4 is one of the sharper tools in the shedchris4x4 is one of the sharper tools in the shedchris4x4 is one of the sharper tools in the shedchris4x4 is one of the sharper tools in the shedchris4x4 is one of the sharper tools in the shedchris4x4 is one of the sharper tools in the shedchris4x4 is one of the sharper tools in the shedchris4x4 is one of the sharper tools in the shedchris4x4 is one of the sharper tools in the shedchris4x4 is one of the sharper tools in the shedchris4x4 is one of the sharper tools in the shed
 
chris4x4's Avatar
Name: FlimFlubberJAM
Joined: May 2008, #6497
Location: Tenoe, AZ
Gender: Male
Posts: 96,535
chris4x4's Tacoma Gallery
Give it more than 10 mins for people to see. And dont make double threads. FWIW, It doesnt sound normal, and you may want to check into getting the tranny calibrated.
  Reply With Quote
Old 07-10-2011, 09:11 AM   #5
With sufficient thrust, pigs fly just fine.
chris4x4 is one of the sharper tools in the shedchris4x4 is one of the sharper tools in the shedchris4x4 is one of the sharper tools in the shedchris4x4 is one of the sharper tools in the shedchris4x4 is one of the sharper tools in the shedchris4x4 is one of the sharper tools in the shedchris4x4 is one of the sharper tools in the shedchris4x4 is one of the sharper tools in the shedchris4x4 is one of the sharper tools in the shedchris4x4 is one of the sharper tools in the shedchris4x4 is one of the sharper tools in the shed
 
chris4x4's Avatar
Name: FlimFlubberJAM
Joined: May 2008, #6497
Location: Tenoe, AZ
Gender: Male
Posts: 96,535
chris4x4's Tacoma Gallery
Quote:
Originally Posted by trianimal View Post
how does one go about recalibrating a transmission?
Not sure. it may be something the dealer has to do.
  Reply With Quote
Old 07-10-2011, 09:14 AM   #6
Greg Graffin 2016
WhatThePho? is one of the sharper tools in the shedWhatThePho? is one of the sharper tools in the shedWhatThePho? is one of the sharper tools in the shedWhatThePho? is one of the sharper tools in the shedWhatThePho? is one of the sharper tools in the shedWhatThePho? is one of the sharper tools in the shedWhatThePho? is one of the sharper tools in the shedWhatThePho? is one of the sharper tools in the shedWhatThePho? is one of the sharper tools in the shedWhatThePho? is one of the sharper tools in the shedWhatThePho? is one of the sharper tools in the shed
 
WhatThePho?'s Avatar
Name: Andre
Joined: Jun 2009, #19096
Location: 90620, Orange County
Age: 100
Gender: Chick
Posts: 5,179
WhatThePho?'s Tacoma Gallery
Send a message via AIM to WhatThePho?
2200 at 60 seems normal for 4.56. You did come from 3.73

In technical chat there's a thread for a formula for regear to find your true speed.
  Reply With Quote
Old 07-10-2011, 09:21 AM   #8
Greg Graffin 2016
WhatThePho? is one of the sharper tools in the shedWhatThePho? is one of the sharper tools in the shedWhatThePho? is one of the sharper tools in the shedWhatThePho? is one of the sharper tools in the shedWhatThePho? is one of the sharper tools in the shedWhatThePho? is one of the sharper tools in the shedWhatThePho? is one of the sharper tools in the shedWhatThePho? is one of the sharper tools in the shedWhatThePho? is one of the sharper tools in the shedWhatThePho? is one of the sharper tools in the shedWhatThePho? is one of the sharper tools in the shed
 
WhatThePho?'s Avatar
Name: Andre
Joined: Jun 2009, #19096
Location: 90620, Orange County
Age: 100
Gender: Chick
Posts: 5,179
WhatThePho?'s Tacoma Gallery
Send a message via AIM to WhatThePho?
Well 2200 at 60 is normal. I recently regeared to 4.88 and am at 2200-2300 at 60 and 3000 at 80.

Tranny wise I have no clue. Maybe someone with a second gen can help us.
  Reply With Quote
Old 07-10-2011, 10:32 AM   #10
With sufficient thrust, pigs fly just fine.
chris4x4 is one of the sharper tools in the shedchris4x4 is one of the sharper tools in the shedchris4x4 is one of the sharper tools in the shedchris4x4 is one of the sharper tools in the shedchris4x4 is one of the sharper tools in the shedchris4x4 is one of the sharper tools in the shedchris4x4 is one of the sharper tools in the shedchris4x4 is one of the sharper tools in the shedchris4x4 is one of the sharper tools in the shedchris4x4 is one of the sharper tools in the shedchris4x4 is one of the sharper tools in the shed
 
chris4x4's Avatar
Name: FlimFlubberJAM
Joined: May 2008, #6497
Location: Tenoe, AZ
Gender: Male
Posts: 96,535
chris4x4's Tacoma Gallery
Quote:
Originally Posted by WhatThePho? View Post
Well 2200 at 60 is normal. I recently regeared to 4.88 and am at 2200-2300 at 60 and 3000 at 80.

Tranny wise I have no clue. Maybe someone with a second gen can help us.
Did you have any shifting issues?
  Reply With Quote
Old 07-10-2011, 12:50 PM   #11
Greg Graffin 2016
WhatThePho? is one of the sharper tools in the shedWhatThePho? is one of the sharper tools in the shedWhatThePho? is one of the sharper tools in the shedWhatThePho? is one of the sharper tools in the shedWhatThePho? is one of the sharper tools in the shedWhatThePho? is one of the sharper tools in the shedWhatThePho? is one of the sharper tools in the shedWhatThePho? is one of the sharper tools in the shedWhatThePho? is one of the sharper tools in the shedWhatThePho? is one of the sharper tools in the shedWhatThePho? is one of the sharper tools in the shed
 
WhatThePho?'s Avatar
Name: Andre
Joined: Jun 2009, #19096
Location: 90620, Orange County
Age: 100
Gender: Chick
Posts: 5,179
WhatThePho?'s Tacoma Gallery
Send a message via AIM to WhatThePho?
Not really. Depends on how hard I push the pedel. I usually have it shift before 2200-2300. It's auto btw. If I'm going onto the freeway At 3/4 throttle I'll go out to 45-5000
  Reply With Quote
Old 07-10-2011, 08:30 PM   #13
Greg Graffin 2016
WhatThePho? is one of the sharper tools in the shedWhatThePho? is one of the sharper tools in the shedWhatThePho? is one of the sharper tools in the shedWhatThePho? is one of the sharper tools in the shedWhatThePho? is one of the sharper tools in the shedWhatThePho? is one of the sharper tools in the shedWhatThePho? is one of the sharper tools in the shedWhatThePho? is one of the sharper tools in the shedWhatThePho? is one of the sharper tools in the shedWhatThePho? is one of the sharper tools in the shedWhatThePho? is one of the sharper tools in the shed
 
WhatThePho?'s Avatar
Name: Andre
Joined: Jun 2009, #19096
Location: 90620, Orange County
Age: 100
Gender: Chick
Posts: 5,179
WhatThePho?'s Tacoma Gallery
Send a message via AIM to WhatThePho?
Pm sandman427. He's running pretty much the same set up you have. 4.56 and I think 285
  Reply With Quote
Reply

Thread Tools Search this Thread
Search this Thread:

Advanced Search

Similar Threads
Thread Thread Starter Forum Replies Last Post
Hankook Dynapro MT 285-70-17s in Atlanta woods247 Buy / Sell / Trade 0 06-30-2011 03:32 PM
Looking to trade for 285 70 17s or close 2009 taco Buy / Sell / Trade 2 12-29-2010 03:36 PM
Will 285/70/17s fit with Spidertrax spacers? Mike K Wheels & Tires 4 12-06-2010 12:10 PM
cheap BFG MT 285/70/17s tacos89 Buy / Sell / Trade 0 07-23-2010 04:20 PM
285/70/17s on 17x9 Motos with 2.5" Lift BradleyJ33 Wheels & Tires 16 08-26-2009 11:24 PM


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