Slow Taco.

I recently bought a 2008 trd double cab tacoma 4.0 V6, I got new wheels 17's and 33 inch tires. I'm curious as to if anyone else's is very slow and has a hard time pushing itself (not towing) up a hill? with the ac on its even worse.. is this normal or is some thing out of wack?

Thanks

 

Large, heavy tires on a vehicle that isn't known for power to begin with? I mean, I guess there could be something wrong, but I'd expect power loss in that situation.

 

What gear and rpm are you in when this happens?

Our trucks arent fast by any means but something seems off with yours. I have no issues going up a hill, granted tranny will downshift and rev a bit high.

 

What wheels and tires are you running? Are you an auto or manual? What size lift do you have?

33s effectively kill power by reducing your effective gearing and then adding a ton or extra rotational weight.

 

When i'm going uphill probably at about 65-70 mph i'm right around 2k rpm and even when its decides to downshift it only goes up like another 500 rpms, Its an automatic. 2.5 inch lift 17 inch method nv and 33 inch bfg AT K02.

 

"TRD regular cab v6" I think some things not right there?

 

My Mistake Double Cab

 

Ah, like the guy above said. Rpms at 60? Auto/manual?

 

Stock wheels weight 23lbs for an off-road or 25lbs for a sport. Stock tires weigh 38lbs for an off road and I think 36lbs for the sport. Combined weight is 61lbs.
Your aftermarket wheels weigh 29lbs. Your tires weigh 58lbs. Your combined weight is 87lbs. Meaning you have added 26lbs of rotating weight per corner, or 104lbs total.

Rotating weight is said to be the equivalent of 4x static weight, meaning you have effectively added the equivalent of 416lbs to your truck, or 10% of the vehicle weight.
At the same time your 33s have reduced your torque multiplication by almost 7%.

And that is likely why your truck feels slow.

Dropping down to C-load 32s can shed 13lbs per tire running the same tire, effectively saving you 52lbs, or the equivalent of 208lbs static weight. While at the same time only reducing your torque by 3.5% instead of 7%, putting you in a much better place.

 

Before getting my current Tacoma, I tested about 6 or 7, in the range of 2010 and 2013 models. 3 of them had larger, A/T tires; power felt poor on them. Just today, I had a trip on high way and since I bought it, for the first time, there were 5 passengers in the truck. I could feel that the motor is sensitive to extra effort; most of the time I drive alone, and power is fine to me; yet with full house, you can feel how the motor struggles a bit more. If you do manual gear changes, or push full throttle, yes, the motor responds fine. But on normal driving conditions, you can feel the difference with no load, and with 4 additional people. Same happens with larger tires. I was thinking on changing tires to Michelin AT2, for the looks, and for the seldom times I go off road on muddy terrain. Yet, for the 90% of time I drive on paved roads, city drive, and mainly for the sake of power, I'll stick with stock dimensions and Michelin MS2

 

I installed a sprint booster doesn't add horse power put got rid of that awfull throttle lag

 

My Access cab manual transmission pushes my 33s pretty well. That said, I towed my camper 3 hours each way for a trip recently... It didn't do so hot at maintaining highway speeds through the mountains - and my MPGs were way worse than when I had my 265s on. Oh well, fuck it

Without the trailer on, they're still fucking rad and MPGs are good when not towing (18 - 19)