Taco lean! Why fixing it is BS! :)

Taco lean!...Solved! (Maybe?) have you added additional spacers or compressed the driver side coil a little bit more to compensate for it? Let me tell you why it's all bullshit heh heh...
I have been thinking an this for a while...and anyone who is familiar with Tacomas knows about taco lean. Tacomas do lean...mine is currently 22in hub center to fender driver, and 22.5in hub center to fender passenger.....while parked.

I devised an experiment to test if my truck would still have taco lean while under normal driving conditions.

I strapped some gopros to my truck and drove down the road.

The first side by side pic is parked on flat ground. White line at hub center and at the top of the rim.

The next side by side is while driving, steady state speed, roll, etc. Notice how the driver side upper rim is slightly below the white line...thus showing the driver side suspension is slightly more extended than when parked.

This would mean that while driving the truck is level (or more level, unless you have no taco lean, then you'll have reverse taco lean)!

What do you guys think?













https://youtu.be/BOUUi9YvwMo

 

I think you have too much time on your hands.

 

Working from home...bullshit meetings most of the day... Don't get between an engineer and a problem...and yes...too much time heh heh

 

0.5 inch........

Is the fuel tank full?

 

Isn't the engineer the one who created the problem?

Just some fun. It's Friday

 

To ME, the only problem with the lean is that there will be a SLIGHT variation (left to right) in suspension geometry resulting in a minuscule difference in tire wear (left to right), which is cured by proper rotation. I'm 250 lbs (plus a few more because of the Pandemic), so my Taco is going to lean no matter what.

 

lol... flimsy ass gopro mounts dont tell you squat.

Taco lean is a thing, and its easy to understand why and why it will only get worse when you get in the driver seat. Fuel tank, battery, steering components, pedals, brake master cylinder, transfer case offset, front diff, ac compressor and alternator to name a few are components on the left that have nothing to offset them on the right of the vehicle.

 

But the spacer goes above the unsprung weight. The only thing what would lower the top of your rim height is your tire being compressed. If you're out of the truck while parked, and sitting in it while driving with that deviation either your PSI is super low to the point you can affect it that way, or you're putting a lot of weight in the drivers seat. Or both. I'm trying to not make this a crack at your body weight but from an engineering standpoint I do not get your results here.

 

I'm just saying my Taco is going to lean just from me being in the driver's seat because of my xxl weight being on the left of the cab with no-one in the right (among all the stuff nd4spdbh lists). The only time anyone is in the right side of the bench (yes, I even have a BASE Taco), is when my wife or daughter needs something from Ikea, so they have to come along to choose (or I have to use the truck to take the corgi to the vet, but then he is a hefty corgi too - 40lbs. enough to activate the airbag light).

 

Hey again not shaming you on the weight thing, I'm no light lunch either. But the only way to get that rim to drop in height is tire compression. Any other weight would just compress the spring, which wouldn't lower the rim. It would lower the fender when the spring compressed. Maybe when you were driving it hit a bump and temporarily squeezed it?

 

Yup it is. I

Ha yes! But I'm not a Toyota engineer! Engineers always causing problems

 

You completely miss the point then... Yes Taco lean is real, I'm not debating that. I clearly posted pics of my truck with taco lean . I'm saying fixes for it only take into account the truck sitting still. While driving the truck with engine load reduces taco lean.

 

Makes sense. But I still think you hit a bump on that picture.

 

No. Look at trophy trucks flooring it...they can lift one of the front wheels off the ground because the truck is twisting and reacting the crazy amounts of engine torque. All vehicles with a longitudinal engine will do the same...but to a much lesser degree. When the engine is loaded at steady state cruising speed...I am showing that the driver side wheel lowers with respect to the truck, the suspension is extending slightly.

No offense taken about my weight heh heh. Sure a heavier driver will cause more taco lean...but the result I show will still happen. Normal driving will reduce (might not eliminate) taco lean.

 

Nope. I took a long video...and snapped the best screen shot from it. I took the best average I could while ignoring any minor bumps.

 

We are using "drop" or "lower" differently. The fixed point is the truck here, that's the frame of reference. If I magically gained 100 lb here the rim would go up not drop with respect to the camera fixed to the truck.

 

I appreciate the scientific approach! But still the tire is more compressed when driving, that seems to indicate more lean, not less? Unless I am missing something. What PSI you riding at?

 

I added the video to show it a different way. You can see the mounts were stiff enough to not be an issue. You can see the driver side move more under initial acceleration and then settle to a point still different than the passenger. (Damn SD card error so video is shorter than I wanted).

Pause the video throughout and on average the driver rim will consistently be lower than the white line than the passenger.

I jokingly thought maybe Toyota engineers did this on purpose.... But I doubt it .

People seem to be confused... I know taco lean is real...and every truck has different amounts. All I'm sharing is my observation (obsessive engineer can't leave it alone) that driving at a constant speed will reduce or negate lean.

 

I could adjust tire pressure in both tires to 10psi and you would not be able to tell in the video. Camera would move with the truck. Plus I was sitting in the truck for the parked pic.

 

What is a half an inch? LOL Without a ruler you would never know.