2WD vs 4WD acceleration from standstill

[slimboiphat]

n00b alert. Apology in advance for lack of awareness.

I own 2000 Limited 4WD with 220k miles. All major service done recently such as water pump/plugs/belts/new tires/brakes. I drove 2001 Limited RWD with 280k that was in terrible shape. According to the original owner, only thing he's done since purchasing new is oil change. To my surprise, the RWD model with higher miles had better acceleration/kick from stand still. Why is this? Does 2001 have more torque/hp? I thought they all had same 3.4L 5VZE. Now I'm left wondering what else I need fix to gain this kick on my truck. :llama:

 

[Chuckles89]

The 2wd has less drag from there being no front diff, CVs, extra weight, etc.

I don't think it would make a huge difference though.

 

[JayRolla]

Gear ratio differences. Tire size differences and if you multimode awd can make a big difference.

 

[02SE]

There are a bunch of variables that could be a factor. Especially on 14 and 15 year old vehicles. Without inspecting both vehicles, it's impossible to say.

All 3rd gen 5VZ-FE's were rated at the same 183 hp, and 217 lb-ft. at the flywheel. This is slightly less than when this engine was installed in their trucks, due to a more restrictive (quieter) exhaust system.

But as mentioned, the 2wd would be lighter than the 4wd in stock form. That might be the reason for the difference you noticed.

 

[Justin727]

As mentioned above.



But I can relate. I sold my 2001 lifted and 4.30 E locked 2wd and bought a well maintained 2001 4.30 4wd both with similar mileage.

The 4wd version is a dog from a stop. I don't even pull out in front of traffic anymore because it takes forever for it to get up to speed without pissing other drivers off.

My 2wd with larger heavier wheels was no where near the slouch that my 4wd with stock and slightly larger tires is.

I'm sure my multimode trans has a lot to do with it other than that it's fine. I drive around like an old fart these days anyhow.

 

[JayRolla]

As mentioned above.



But I can relate. I sold my 2001 lifted and 4.30 E locked 2wd and bought a well maintained 2001 4.30 4wd both with similar mileage.

The 4wd version is a dog from a stop. I don't even pull out in front of traffic anymore because it takes forever for it to get up to speed without pissing other drivers off.

My 2wd with larger heavier wheels was no where near the slouch that my 4wd with stock and slightly larger tires is.

I'm sure my multimode trans has a lot to do with it other than that it's fine. I drive around like an old fart these days anyhow.

Yeap, multimode is the main factor there.

 

[Lassitor]

As mentioned above.



But I can relate. I sold my 2001 lifted and 4.30 E locked 2wd and bought a well maintained 2001 4.30 4wd both with similar mileage.

The 4wd version is a dog from a stop. I don't even pull out in front of traffic anymore because it takes forever for it to get up to speed without pissing other drivers off.

My 2wd with larger heavier wheels was no where near the slouch that my 4wd with stock and slightly larger tires is.

I'm sure my multimode trans has a lot to do with it other than that it's fine. I drive around like an old fart these days anyhow.

Ha, I drive like an old fart too, particularly in the truck

 

[Unner]

Why does everyone keep saying multimode is the factor here? Is it just the added weight of having 4WD that you guys are talking about or is there something else that I don't know about the multimode that makes it "slower" than the other 3rd gens?

 

[Justin727]

Why does everyone keep saying multimode is the factor here? Is it just the added weight of having 4WD that you guys are talking about or is there something else that I don't know about the multimode that makes it "slower" than the other 3rd gens?

Because Multimode is 1k lbs heavier than regular 4wd :tongue1: sarcasm

 

[wc11]

The 4WD spec is 300 lbs heavier.
But then so many variables to take into account like payload and fluid levels as well.

But in the end, what are we taking about? Half a second maybe?