Toyota Tundra - TT ?

I get about 10 mpg with the Tundra towing a Rockwood ultralit 2904SS about 7500 loaded. sometimes alittle over 10 ,sometimes a little under 10.

ah64id wrote:

spoon059 wrote:

Some people don't like to let a gas engine rev, that is their prerogative, that doesn't mean that there is anything wrong with truck.

Agree, I didn't say it was wrong just that they would scream :-)

run a deisel up to 2.5k(where many of them are near redline) and they start making a ton of noise as well...any engine can scream. Gassers are designed for higher rpm...as long as you maintain them properly this is normal operations and not anything out of the ordinary.,.:)

Here's wishing them a fun and safe trip!

Dad & I picked up the Open Range today. Tundra handled it without any problems or concerns. I know the tt is empty but I don't see them putting a lot of stuff in it. They are taken it out next weekend for a trail run.

Thanks for the help.

music69 wrote:
If shifting to higher rpm and/or slowing down on a grade is a problem when towing, then forced induction, diesel and big blocks are the only options. All n/a gas motors are going to shift (or slow) on grades when pushed. The DOHC motors that Toyota uses are more prone to this than, say, a GM push rod, since the torque curve is pretty steep up to ~3k+ rpm, but that's how they're intended to work. They rev so quietly, that I don't see where anyone would mind? Not much louder than a turbo spooling, to me, and pretty much always quieter than a Cummins :)

Are you suggesting diesels don't slow down and scream like a banshee on the upgrades? Here's one towing a measely 13k~lbs up an interstate grade. Slowed it down, made it downshift and scream like a banshee. I don't know how anyone could drive such a migraine maker! :B

http://www.youtube.com/watch?v=-_1ZefREs0Y

If shifting to higher rpm and/or slowing down on a grade is a problem when towing, then forced induction, diesel and big blocks are the only options. All n/a gas motors are going to shift (or slow) on grades when pushed. The DOHC motors that Toyota uses are more prone to this than, say, a GM push rod, since the torque curve is pretty steep up to ~3k+ rpm, but that's how they're intended to work. They rev so quietly, that I don't see where anyone would mind? Not much louder than a turbo spooling, to me, and pretty much always quieter than a Cummins :)

spoon059 wrote:

Some people don't like to let a gas engine rev, that is their prerogative, that doesn't mean that there is anything wrong with truck.

Agree, I didn't say it was wrong just that they would scream :-)

ah64id wrote:
Small, and I do mean small like a 2% rise for 1/2 mile, would send both rigs screaming. One guy was so annoyed he slowed to 55 in a flat stretch of a 75 mph zone to quit listening to the motor.

The other guy towed with it for a summer and now has a diesel, and said the tundra doesn't even hold a candle to the way a HD pickup tows it.

They both said the tundra has the power, just needs way too many rpms to make it.

Maybe it's the elevation out here? But 2 rigs with nearly identical trailers is not a fluke.

First of all, a bone stock Tundra is WHISPER QUIET, even at 4500 RPMs. Second of all, I have towed my 6500 lbs trailer (with a LOUD aftermarket exhaust) to Florida and back 3 times (about 2000 mile round trip) and never run into these alleged problems even hitting 6% grades. Third, obviously a HD diesel pickup will tow with more power and lower RPM. Fourth, naturally aspirated engines all require higher RPM's to make power. It isn't a problem, its not damaging the engine... that's how they were designed to operate.

Some people don't like to let a gas engine rev, that is their prerogative, that doesn't mean that there is anything wrong with truck.

camp-n-family wrote:

Make sure he knows it would sound like a sewing machine on any and every grade if he wants to hold any speed.

I have two friends that had 18CK trailers (5,200lbs max) and got very tired of their 2007 and 2008 Tundra's down shifting on the slightest of grades. The trucks held speed just fine, but ran a LOT of rpms to do so.

I am sure this is how many gas rigs are, but no real experience with the others.

I find that hard to believe. They must be driving in OD if it was shifting a lot or had aftermarket exhausts if it was loud. I leave mine in 5th and it hums all day at 65mph in the low 2000rpm range with my 31' 7600lbs tt. If I hold speeds on some long grades it will downshift like any other vehicle, but it hardly sounds like a sewing machine. It's no low rpm diesel but it's also not loud or annoying at all.

Both where bone stock.

Small, and I do mean small like a 2% rise for 1/2 mile, would send both rigs screaming. One guy was so annoyed he slowed to 55 in a flat stretch of a 75 mph zone to quit listening to the motor.

The other guy towed with it for a summer and now has a diesel, and said the tundra doesn't even hold a candle to the way a HD pickup tows it.

They both said the tundra has the power, just needs way too many rpms to make it.

Maybe it's the elevation out here? But 2 rigs with nearly identical trailers is not a fluke.

One of the trips I was riding in a friends 460 ft/lb Cummins on 35's towing a similar trailer and the tundra was behind us. We where doing 60-65 and on every little incline, not grade just normal small inclines in a flat desert, they would fall way behind or listen to the motor scream.

These are the same small inlines I pull at 65-70 in OD and hardly notice the truck work any harder. 1-2% if I were to guess.

camp-n-family wrote:

Make sure he knows it would sound like a sewing machine on any and every grade if he wants to hold any speed.

I have two friends that had 18CK trailers (5,200lbs max) and got very tired of their 2007 and 2008 Tundra's down shifting on the slightest of grades. The trucks held speed just fine, but ran a LOT of rpms to do so.

I am sure this is how many gas rigs are, but no real experience with the others.

I find that hard to believe. They must be driving in OD if it was shifting a lot or had aftermarket exhausts if it was loud. I leave mine in 5th and it hums all day at 65mph in the low 2000rpm range with my 31' 7600lbs tt. If I hold speeds on some long grades it will downshift like any other vehicle, but it hardly sounds like a sewing machine. It's no low rpm diesel but it's also not loud or annoying at all.

X3, I have not been able to duplicate the sewing machine sound on hills.