The “My Back Hurts” Thread

is it really that easy to turn? Is this a turd gen?

 

A supercharged 4wd 4cyl with an automatic and 4.56 gears. It counts

 

Because no actuators

 

Supercharger only matters when you’re laying into the throttle.

Cruising on the freeway at constant or fairly constant RPM..? You shouldn’t be burning anymore fuel than a non SC motor.

4.56s though.. pretty decent.

 

No it really gets the same mileage as it used to. On the highway it only starts to boost when I go up a hill. With cruise control set, It used to unlock the converter uphill and even downshift. Now, it rarely does so, even at 70. Once in a while if I have a good headwind it’ll unlock the converter, but rarely does it downshift anymore.

4.56s on 31s. It doesn’t like highway at all. Although with the tire size I’m wanting, I kind of wish I had gone 4.88. I thought the supercharger would make more of a difference than it really does.

 

Eh.

Superchargers are parasitic means of forced induction. It takes power to turn all that extra stuff.

 

Not so much. Yeah it takes a bit to spin the pulleys and rotors, but it’s not much and they have bypass valves. The intake air is routed around the rotors till vacuum is gone. Once vacuum disappears, the bypass valve closes, and it starts to send the air through the rotors and build boost. I get the same mpg I used to. Like 16 city. And depending on speed highway I get from 18-22. I did 70 all the way to GA and got 18 there. Back I did 60 and got 22.

 

Not enough to rob a few MPGs on a low displacement, high RPM 4 cylinder that isn’t in active boost.

 

Not sure, didn’t ask.


Fml, at least I didn’t have the trailer or equipment on it.

 

I like my pro's, @BYJOSHCOOK has them to. He's probably tested his out more than me.

They do good on the street though

 

My problem is I’m worried about weight with the 4cyl automatic. The Coopers are 58lbs a tire. I found these in 285/75r16 that are load range C, 53lbs a tire. Only a few reviews but all have been good.

 

I learned my lesson on cheap tires.

Weight wise
In a 285/70r17
Coopers lightest can be in the 42lb area
Duratrac I believe are like 49lbs?
Fierce attitude mt at 52lbs.. but real good reviews

I also found, on some forum a guy did a test with a 50lb tire and a 70 or 80lb tire. Acceleration wise is was 2 tenths of a second. Braking was a bit extra, mpg was like .2 I think off. I just gave up when I found out. Searched every tire possible

Customoffsets are the best place for sizes and weight

 

@95 taco

Jake this meme looks like it could be you in 20 years.

 

No way in hell .2 MPG difference. Maybe from 50 -> 70 lbs, but I went from P245/75/16 OEM Dungflops to P265/75/16 Hankook Dynapro ATM RF10s and lost 5 MPG off my average, and did so for the next 35k miles.

 

The height did it, let me see if I can find it

 

I went from stock size (265/70?/16) to 285/75/16 and lost about 3mpg on average, 57lb tires

 

No doubt, but almost doubling tire weight resulting in .2? Not buying that.

I get rolling resistance is less important than diameter but.. I’m not sure that is all that scientific of a result.

 

He doesn't look 41...
But he does look like me when I was younger.

 

I can't find it but I think it was tire rack, a 35x12.5 with around 20lb difference didn't mess anything up that much. Except braking, that's why I gave up and just got the tires I trusted the most

 

damn. you hit someone, or someone hit you?