I have had 4 4x4 Tundras. The two that felt the fastest were both the 2000s. The 2005 four door was a dog. I replaced it with a used 2003 Limited AC. It has a glass shell, but so did the others. I'm running 285x75-16 BFG MTs. It came with a Volant cold air intake and cat back Borla stainless dual exhaust. I just hammered it on the on ramp of the freeway (regular gas) and it sure doesn't seem as peppy as the 2000s. It doesn't seem to have the low end punch. It pulled 2nd gear to almost 5K RPM but it seemed like it took awhile to get there from what I can remember. Is it the intake, exhaust or both? Should I get rid of one or the other? I tow a 21' Boston Whaler that weighs in at 6K + with fuel and gear. Low end is very important.

Thanks for any and all suggestions.

Did any of your others have modified exhaust and or intakes? From what I have read repeatedly on this forum, is that duals will kill your low end. The factory single exhaust w/ a good aftermarket muffler like a magnaflow or spintech is ideal.

And those 'cold air' intakes don't seem to help much, and again, reduce low end performance. Not sure why exactly, but it has been tested over and over by Tundra owners on this forum. Most end up putting factory intake and air cleaner back on.

I can tell you this...I have an 06 DC 4X4. I had the dealer throw in the dual exhaust. It took a week before they put it on. I thought the truck was slow to start with...after the dual...even slower....I don't know how to pick it up unless I put on a supercharger...i don't know....I'll throw in some TRD or K&N air filters only...and lets see what happens....i'm not a big fan of cold-air intakes (although i like the AEM on the eclipses) but the factory one is enough..maybe changing the air filter might help...dunno. I'll spend a $20 bucks on them...give it a shot.

I've noticed the same thing with my totally stock '06 access cab. I find that driveing with overdrive off helps.

I thought I was reading the Tundras are quicker than the ford and the gm etc?

Lets face it, the tundra 4.7 is underpowered since 02. they made changes almost every year and added more weight with the double cabs. it downshifts more now and it's slow. dcabs need the new 5.7.

I don't understand how a some 05 and 06 owners say their Tundras are slow. I bought my 05 AC 2wd new and it felt very quick and powerful right away, especially in 1st and 2nd gear. Last fall I took it to the drag strip and ran 14.9@ 92mph with no mods. I realize the DC 4x4 are about 500lbs heavier and that will make a difference.

The '05 and up models should be the strongest. They boosted HP by 40+ for 2005 (assuming the old 4.7L was rated in the same manner).

Mine feels quite strong, no complaints at all. I'd say the truck is quicker than the Chevy 5.3L, and certainly quicker than the Ford 5.4L. Maybe not as much grunt if you're towing above 5,000# say, but it drives great for how a typical 1/2 ton is used. The 3.92 gears help, most of the competition is 3.73 or higher unless ordered with a 4.10.

The only truck I've driven that honestly feels substantially quicker than my Tundra is an AWD Hemi. That would peg you back in your seat nicely, but the Tundra has nice power. Those of you with fresh motors might need a little break-in time.

if you look at the times they posted in the major auto magazines the 05-06 tundra is quicker than every single truck except the Titan where it is .1 slower in the 1/4

I'm happy with my '02 4x4 ac tundra, it seems to have real good power & acceleration. If I remember correctly, the newer 4.7 has more hp, but a little less torque than the earlier ones.... maybe that's it?

I believe that the results of the MODS to unleash some of the "hidden Horses" in the 4.7, and you can look at several DYNO results like those posted on the K&N and JBA websites, are typically seen above 3000 RPM. Not really the average RPM one would use for towing or typical daily driving.
-If you want to pull stumps, get a diesel!- Hmmm, that would make for an interesting new release from Toyota.

I remember reading somewhere that the dual exhaust will kill your low end torque. Adding a set of some TRD or JBA header will give back some torque and some added HP. Also, the stock airbox setup is recommended. I have the TRD air filter in mine with the TRD duals, headers, and LSD. LSD seems to makes a difference off the line.

I have had 4 4x4 Tundras. The two that felt the fastest were both the 2000s. The 2005 four door was a dog. I replaced it with a used 2003 Limited AC. It has a glass shell, but so did the others. I'm running 285x75-16 BFG MTs. It came with a Volant cold air intake and cat back Borla stainless dual exhaust. I just hammered it on the on ramp of the freeway (regular gas) and it sure doesn't seem as peppy as the 2000s. It doesn't seem to have the low end punch. It pulled 2nd gear to almost 5K RPM but it seemed like it took awhile to get there from what I can remember. Is it the intake, exhaust or both? Should I get rid of one or the other? I tow a 21' Boston Whaler that weighs in at 6K + with fuel and gear. Low end is very important.

Thanks for any and all suggestions.

1. As already mentioned the dual exhaust will hurt your low end.
2. The 285s will also hurt your low end unless you regear.

I'm happy with my '02 4x4 ac tundra, it seems to have real good power & acceleration. If I remember correctly, the newer 4.7 has more hp, but a little less torque than the earlier ones.... maybe that's it?

The newer trucks have more horsepower and torque. To compare, you need to look at the '05 engine specs:

2005 HP= 282 @ 5400 Torque= 325 @ 3400

2004 HP= 240 @ 4800 Torque= 315 @ 3400

The 2006 engines were rated by the new SAE standards which basically killed all of Honda and Toyotas numbers. The '06 numbers should be more consistent when comparing other brands though.

For towing 6K+ you definitely want the overdrive off. I can't speak to the exhaust issue, but everything I have read on this board says it does kill the low end. The larger tires will also make your speedo not only read incorrectly, but make the truck slower at low end unless you regear as has been suggested.
My '06 4x4 DC is sweet and I couldn't be happier with the low end and get up and go. We'll see how it goes towing the boat next weekend, but I'm towing way less than you are.

CAP

Thanks for all the replys. Some good information here. The other trucks were stock intake and exhaust. I know the larger 285s tire will rob power, but the other two 2000s had the same 285s. Maybe I can find someone that will buy my Borla and I'll return to the stock size pipe with single and a better muffler. I'll keep the intake and see if that helps. If not, I'm sure some kid will trade me their stock set-up for the cold air Volant. To be honest, I don't care much for the sound of the Borla. It doesn't drone at freeway speeds, but it doesn't sound agressive enough for me. Its just a bit over stock. Looks great though.

Thanks again,
Tom

I don't understand how a some 05 and 06 owners say their Tundras are slow. I bought my 05 AC 2wd new and it felt very quick and powerful right away, especially in 1st and 2nd gear. Last fall I took it to the drag strip and ran 14.9@ 92mph with no mods. I realize the DC 4x4 are about 500lbs heavier and that will make a difference.


I agree. Its a truck, if your woried about driving a race car then go buy somthing else. I have an 05 DC 4x4 and I dont think its underpowerd. Its funny to see people who dont even have DC's or the new VVTI engine telling everyone that the truck is underpowered.

My Tundra is much more powerful than my Tacoma. I am happy with it, it pulls nice, gets decent MPG and is real comfortable. Its everything a truck should be.

Chris

fwiw, the stock intake IS a cold air intake. it takes in fresh air from the fender well as opposed to hot air from the engine compartment. go back to stock intake with stock air filter, add cat forward headers and return to stock exhaust and you will be much happier.

also, from my calcs, adding 1.5 inches to the diameter of the tires results in about a 5% reduction in power to the ground and 5% error in speedometer. not to mention the increased rolling resistance of the wider rubber. when you add up your losses for the "gear reduction" of going bigger on tire size plus the loss of the lowend torque going with duals plus the loss of the intake, you could easily be looking at 15 - 20% total reduction in power to the ground. that's a big deal when towing what your are towing and you're loosing it in the critical tow rpm band.

in addition to making the changes above, i would consider regearing if you are going to stick with the larger tire size and tow 6K lbs.

there's lots of good info in the towing forum on the details for exactly what you can do to help out your situation.

The '05 and up models should be the strongest. They boosted HP by 40+ for 2005 (assuming the old 4.7L was rated in the same manner).

Mine feels quite strong, no complaints at all. I'd say the truck is quicker than the Chevy 5.3L, and certainly quicker than the Ford 5.4L. Maybe not as much grunt if you're towing above 5,000# say, but it drives great for how a typical 1/2 ton is used. The 3.92 gears help, most of the competition is 3.73 or higher unless ordered with a 4.10.

The only truck I've driven that honestly feels substantially quicker than my Tundra is an AWD Hemi. That would peg you back in your seat nicely, but the Tundra has nice power. Those of you with fresh motors might need a little break-in time.

Not to mention the even more important fact that the 05+ has a 5spd tranny. The trans gearing will make a huge difference. You can make a 5hp go kart do 75mph with the right gearing.

Chris

I agree with you on that also. I had a 2000, then a 05, now another 2000 and the 2000s had more punch than the 05. Mine were not 4wd though. The 2000 I have now has quite a bit more power than the 05, which was sluggish but I still liked it.

I test drove a 05 Tundra with the new 282 HP vvti engine last year with my wife and we both thought that my 2001 felt quicker but it's comparing apples to oranges because my truck is modified and the 05 was brand new.

Are you TS owners that say your 2000 trucks feel quicker comparing them stock to stock? The 2005 I test drive didn't feel underpowered it just didn't feel as peppy especially in the lower RPM range.

Toyota quality is amazing though. At the time my truck had about 95,000 miles on it and we both commented that my 2001 drove exactly the same as the new Tundra. These trucks are built well!

I just bought a 4x4 dc limited and have had it for 3 days now, for some reason I do feel that the 06 is a little slower than the 05 dc when I test drove one last year. the limited I drove last year had 6k miles on it tho. I wonder if my 06 has to break in before I'll notice the power? I think its kinda weird tho.

I don't know if the Tundra motor needs some break-in time or not, but I've experience this in the past. Most recently our Odyssey didn't wake up fully until around 5k miles. I bought my Tundra with a little over 6k miles on the clock so I wouldn't know. Mine feels damn strong compared to most other trucks I've driven.

I test drove a 05 Tundra with the new 282 HP vvti engine last year with my wife and we both thought that my 2001 felt quicker but it's comparing apples to oranges because my truck is modified and the 05 was brand new.

Are you TS owners that say your 2000 trucks feel quicker comparing them stock to stock? The 2005 I test drive didn't feel underpowered it just didn't feel as peppy especially in the lower RPM range.

Toyota quality is amazing though. At the time my truck had about 95,000 miles on it and we both commented that my 2001 drove exactly the same as the new Tundra. These trucks are built well!

Another thing that is slow on a tundra.the depreciation!:tu:

I have a 06 DC and I have no problem at all towing or with pep.I have had a 1999 F 150 and this Tundra pulled a trailer with 5800# alot better and more comfortable then the F150.
Pep is fantastic and everyone comments me how good it looks.
Also all the good looking women want me to take them home.......well I might be streching the last point a little.:)

just a thought, but I went from a 01 silverado to my 06 dc and it was not slower it just didn't have the feed back that the chevy did. i figured it was an issue of getting used to the feel of the drive by wire and the unbelievably smooth ride

My 06 dc 4x4 trd has improved as miles were put on it. Mileage is better 16.2mpg. city and hi-way together on last tank. I drive 70 and do put my foot into it at times. The computer learns as you drive and will adjust shifting and fuel. I have been very happy with it, the fords, chevy and dodge 4x4 owners that seem always want to see how it performs look upset in my rear view mirror!!:D

My 06 D/C is still breaking in..
I am getting 16.5mpg, have lots of low end torque and no issues on power..

We have a 4.7 2002 4wd tundra equiped with JBAs and a stock 2004 5.3 chevy. The tundra is quicker, more responsive, easier to tow with, and much more fun to drive than the 5.3! Even before the JBAs the tundra out drove the chevy. Both are nice trucks - but the tundra is hands down the better vehicle. My wife drives the Chev. but prefers the tundra. She calls it by the pet name "zippy."

i bought my tundra to drag race too!
i fret incessantly about it.
they call me mr mod around here.
u need to get ya somma dem k&n filters, yes, that'll make r breath fire. do some synthetics everywhere u can find an orifice, get u a good loud aftermarkety exhaust. my personal favorite is oil analysis.

i have amsoil tatooed on 1 side of my pecker and royal purple on the other.
vroom vroom. here he comes, here comes speed racer...

dont get those k&n filters!

i bought my tundra to drag race too!
i fret incessantly about it.
they call me mr mod around here.
u need to get ya somma dem k&n filters, yes, that'll make r breath fire. do some synthetics everywhere u can find an orifice, get u a good loud aftermarkety exhaust. my personal favorite is oil analysis.

i have amsoil tatooed on 1 side of my pecker and royal purple on the other.
vroom vroom. here he comes, here comes speed racer...

By any chance were you high when you wrote this? Or drunk? :rolleyes:

I have never felt that my 06 4.7 V8 EVER feels slow. I LOVE the 4.7!! It feels much more powerful than Fords 5.4, at least to me!!

My first impression when I drove the '06 was how much quicker it seemed than my '02. Moreover, it seemed comparable to the Titan as far as get up and go (slightly smaller engine, but a lot less vehicle to push).

I like the '06 Tundra much better than either the '02 or the Titan (though I still wish my back seats would fold down :)).

By any chance were you high when you wrote this? Or drunk? :rolleyes:
no, its been over a decade, but i used to indulge so much perhaps some of the effects are permanent.

the point between the lines:
one may allow his attention to dwell upon a subject, like acceleration, to the point that the perception distorts and then solidifies .
that's why all these companies make so much money marketing the promise of improved performance.
some deliver, in degrees, but frequently w/ side effects, be they financial or mitigated real world performance.
one certainly can improve on the original product, with dollars and a good wrench, but i bought Toyota because it came from the factory with what i believe is the best balance of performance and longevity.2000 all stock, 110k,
generic oil and tranny fluid, fresh filters and grease, runs better than day 1.
only prob has been shuddering brakes

dual exhaust will hurt your truck's low end keep the single exhaust but change the muffler have a spintec muffler and actually gained 12 lbs torque and added 8 horsepower to the rear wheels. Same with the stock filter, good design. Want to try headers next but have to read if it will hurt my 100k toyota warranty only have 46,000 on truck sr5 ac 4x4 with 3" toytec lift

My '03 Tundra feels slow getting onto the freeway, and at highway speed changes. It shifts alot, too. The only place it feels "peppy" is around town, light to light. I came to the decision that the 4.7 is a bit little, and the tranny gearing isn't quite right. Mine is all stock, and gets 12 mpg.

If gearing hasn't changed, I think it's more likely the tires. your mt's are about 3" taller, 1" wider and 20 lbs. heavier than the stock 265/70/16.

I have an '05 2wd DC, and it runs like a raped ape. There is no other 4.7, or similar sized, on the market that even comes close. Not really fair to compare it to a Hemi or GM 6-liter. And I just rode in a GMC Denali with the 6.0, and it didn't feel much quicker to me, but I wasn't driving. I may have to get the guy to line up, just for s****s and giggles. Another thing to look at, feelings can be deceiving. A quite vehicle that doesn't make all kinds of racket may feel slower but is actually quicker. Your senses can screw with you. It's also entirely possible to get two identical trucks of the same assembly line, and have one that runs better than the other.