Truck feels more sluggish with 16s now

Hi guys. My vehicle is a 2017 TRD Sport ACLB 6MT. I switched from the stock Toyo Open Country A30 265/65/17s and rims to the stock TRD OR Goodyear Wrangler AT Adventure 265/70/16 on SR5 Dark Alloy wheels. Truck feels like it needs more clutch and gas to start moving from a stop or low speeds. Tires and rims should be lighter than the original 17in rims and tires.

Toyos 37lbs

Goodyear Wranglers 35lbs

Not sure if normal or if I'm thinking of things that aren't real.

 

Have you checked your air pressure on your new set?

 

I set them to 30psi. Old tires were 29psi on the door sticker.

 

It is all in your head.

 

I think Toyota recommends 32psi for 16in wheels. I'm gonna try that instead.

 

Parking brake is on.

 

Negative ghost rider.

 

Is it cause you have 150 pounds of tires in the bed of the truck?

 

Your new tires should be about an inch taller than your previous set so what you are feeling is correct. You are in tune with your truck.

https://www.discounttire.com/learn/tire-size-calculator?cid=0bbe920a-2675-46d3-9988-a06a5e8cac89

 

Wrong. Both tires are 30.6 inches in diameter and same width. The tires I put on are the same Goodyear wranglers that come on the 3rd Gen TRD ORs. They should be lighter (35lbs vs 37lb Toyo OC A30) and I put on 16in rims which are lighter aswell. My fuel mileage also seems to have taken a hit. Only getting 17.5-18.5 doing 65mph on the freeway on my way to work. On my old wheels I remember getting atleast 19mpg consistently.

Tire pressure is at 30psi which is the recommended spec by Toyota. I can only think of maybe the rubber compound in the tires is stickier than what is in the Toyo Open Country's.

 

Shorter sidewalls should feel more responsive.

 

That's probably what it is, Less Rolling resistance on the 17in tires. Wasn't expecting to lose much fuel economy though.

 

I did this soooooo many times in my first car

 

Nope...1.1mm of increased diameter from old to new...apparently makes a difference

 

Weird, I thought it was the other way around. Just seems truck was lighter with my 17 Sport rims and tires.

 

Go 35.
Trial and Error is your best shot.
Start High and go Low.

 

Well then, based solely on the numbers, you're just a crazy person

 

I'll take that as a complement.

 

Stock were 36lbs.... wranglers are 42lbs.

 

As intended!