Gas Mileage in 02 Taco 3.4L - 3.46 Gears??
#1
Gas Mileage in 02 Taco 3.4L - 3.46 Gears??
Hey everyone, I have an 02 Tacoma TRD with around 93K miles on it. Stock it got 17-19mpg. I installed a 3" susp lift and 285/75R16 BFG ATs on it. It also has a cat back from NW Off Road and a cold air intake. I know the tire size makes the odo/speedo calculation off a little bit, but now it's getting 14mpg consistently. I typically get 240 miles per tank, which is usually 15-16 gallons. I have plenty of power in the top end to pull my 400 pound Raptor and still go 80, so I'm wondering if I put a smaller ring in the differential would it help me out enough without killing my power? I forget my stock ratio but I know 3.46 is the next step.
Also, is anyone running the STS turbo kit? I just saw their website and am very interested. Theoretically a turbo with smaller gears would give me better gas mileage and more power. Anyone have experience with it? Thanks!
-mark
Also, is anyone running the STS turbo kit? I just saw their website and am very interested. Theoretically a turbo with smaller gears would give me better gas mileage and more power. Anyone have experience with it? Thanks!
-mark
#3
Registered User
Join Date: Feb 2007
Location: Las Vegas, NV
Posts: 527
Likes: 0
Received 0 Likes
on
0 Posts
I'm not so experienced with the gears but I was also looking at the STS kit and upon reading over what others had to say about it decided against it. try one of these threads.
STS turbo kit
STS turbo kit 2
STS turbo kit 3
Welcome to Yotatech!
STS turbo kit
STS turbo kit 2
STS turbo kit 3
Welcome to Yotatech!
Last edited by Joe's Toy; 04-08-2008 at 08:05 AM.
#5
im not totally sure, but i think he wants to regear higher to give him a lower cruising rpm, since hes got lots of power already to cruise at 80. 3.46 is pretty high, and i dont think itll make much difference.
#6
yep you're right. i just read through some of those STS threads, sounds like most people are afraid of water and turbo lag. really i'm just interested in better gas mileage. i rarely offroad anymore, i have a dirtbike and quad if i want to do that. i love my tacoma but its 14-17mpg is going to kill me. i'd like to gear up in the back to get my rpms down on the highway. anyone else do this?
#7
yep you're right. i just read through some of those STS threads, sounds like most people are afraid of water and turbo lag. really i'm just interested in better gas mileage. i rarely offroad anymore, i have a dirtbike and quad if i want to do that. i love my tacoma but its 14-17mpg is going to kill me. i'd like to gear up in the back to get my rpms down on the highway. anyone else do this?
If you gear down your rpm will go higher and you will have more power, which it is easier to push those oversize tires, so you should see a gain in mpg.
The only guaranteed way to gain mpg is take get smaller tires, and take the lift off.
Gearing is also expensive, take off the lift trade the tires, and take that money you were going to regear with and buy gas.
Trending Topics
#8
Registered User
Join Date: Sep 2007
Location: Fort Collins, Co
Posts: 102
Likes: 0
Received 0 Likes
on
0 Posts
I have 4.10's in my 4runner and get 16mpg in town and upto 23mpg on the highway. I was thinking of going to a 3.91 from a taco...what are all the OEM sizes?? There is a 3.46 too?? I am curious to all available options for my Sr5??
I also want a factory rear locker but arn't those geared like 4.56 or even higher than the 4.10's?? THe TRD rear end that is.
I also want a factory rear locker but arn't those geared like 4.56 or even higher than the 4.10's?? THe TRD rear end that is.
Last edited by 22R-to-5VZFE; 04-09-2008 at 10:25 PM.
#9
Registered User
Join Date: Feb 2007
Location: Gateway City
Posts: 536
Likes: 0
Received 0 Likes
on
0 Posts
I wouldnt re-gear just yet. Get a throttle body spacer from airaid (part#510502) It gave me 3mpg increase. I was kind of skeptical @ first then I put it on and Woser! the thing performs!!! try it out. Oh yeah, it makes a whistle sound like you have a blower or something, sounds kinda neat,LOL
Hey everyone, I have an 02 Tacoma TRD with around 93K miles on it. Stock it got 17-19mpg. I installed a 3" susp lift and 285/75R16 BFG ATs on it. It also has a cat back from NW Off Road and a cold air intake. I know the tire size makes the odo/speedo calculation off a little bit, but now it's getting 14mpg consistently. I typically get 240 miles per tank, which is usually 15-16 gallons. I have plenty of power in the top end to pull my 400 pound Raptor and still go 80, so I'm wondering if I put a smaller ring in the differential would it help me out enough without killing my power? I forget my stock ratio but I know 3.46 is the next step.
Also, is anyone running the STS turbo kit? I just saw their website and am very interested. Theoretically a turbo with smaller gears would give me better gas mileage and more power. Anyone have experience with it? Thanks!
-mark
Also, is anyone running the STS turbo kit? I just saw their website and am very interested. Theoretically a turbo with smaller gears would give me better gas mileage and more power. Anyone have experience with it? Thanks!
-mark
#10
I wouldnt re-gear just yet. Get a throttle body spacer from airaid (part#510502) It gave me 3mpg increase. I was kind of skeptical @ first then I put it on and Woser! the thing performs!!! try it out. Oh yeah, it makes a whistle sound like you have a blower or something, sounds kinda neat,LOL
I have 4.10's in my 4runner and get 16mpg in town and upto 23mpg on the highway. I was thinking of going to a 3.91 from a taco...what are all the OEM sizes?? There is a 3.46 too?? I am curious to all available options for my Sr5??
I also want a factory rear locker but arn't those geared like 4.56 or even higher than the 4.10's?? THe TRD rear end that is.
I also want a factory rear locker but arn't those geared like 4.56 or even higher than the 4.10's?? THe TRD rear end that is.
Your kind of stuck though, taco 3.91's won't work in the rear of your runner, different ring size.
Last edited by crolison; 04-10-2008 at 03:23 AM.
#11
Registered User
Join Date: Feb 2007
Location: Gateway City
Posts: 536
Likes: 0
Received 0 Likes
on
0 Posts
I am not even going to go there.
Your doing pretty good at 23 highway, I wouldnt regear either. Factory rear locker came in, i think 4.10's and 4.30's. The easiest thing to do is get a wiring kit from off road solutions and switch out a 4runner elocked rear axle.
Your kind of stuck though, taco 3.91's won't work in the rear of your runner, different ring size.
Your doing pretty good at 23 highway, I wouldnt regear either. Factory rear locker came in, i think 4.10's and 4.30's. The easiest thing to do is get a wiring kit from off road solutions and switch out a 4runner elocked rear axle.
Your kind of stuck though, taco 3.91's won't work in the rear of your runner, different ring size.
#14
Registered User
Join Date: Apr 2007
Location: San Diego, CA
Posts: 366
Likes: 0
Received 0 Likes
on
0 Posts
Yeah, these engines need to be crusing at a higher RPM to really get efficient. Even then, it's a marginal increase. Fuel mileage is a lost cause in a 4Runner unless you have a tiny 4 banger or get a diesel.
Thread
Thread Starter
Forum
Replies
Last Post
skoti89
General Vehicle Related Topics (Non Year Related)
4
09-11-2015 07:46 AM
Seattle_Sign_Guy
95.5-2004 Tacomas & 96-2002 4Runners
0
07-12-2015 12:38 PM
Jnkml
95.5-2004 Tacomas & 96-2002 4Runners
3
07-06-2015 01:20 PM