Running 35s with a Pentastar

[PDTRAD73]

To all pentastar rams running 35s, have you noticed much power loss since upgraded from stock tires/wheels? I know that fuel economy will take a hit, more concerned about losing power. Thanks

 

[HemiPower36]

I noticed an obvious loss of power jumping to 35x12.5r20. Night and day. That’s with the hemi. I am sure the pentastar will be equally as obvious. My tires used to break lose. Now, not a chance.


Sent from my iPhone using Tapatalk

 

[clay282]

I think you'll be fine with power... but I also think it'll never hit 7th or 8th gear let alone 6th. Like pulling a pontoon boat! She'll do it without a problem, but she's gonna rev to make the power.

 

[69GWC]

What gears does your truck have?

I would also say to look for a light wheel and tire package and maybe think about a skinny 35 rather than a 12.50.

 

[RedSRT4Me]

To all pentastar rams running 35s, have you noticed much power loss since upgraded from stock tires/wheels? I know that fuel economy will take a hit, more concerned about losing power. Thanks

Gears will be the only thing that will bring power back.

No matter which way you slice it adding 30+ lbs to each wheel loses power.

When I switched up 4.56's I got my power back.

V8 or V6 this mod applies if you're staying naturally aspirated.

 

[xFURIOUSJONESx]

This is a little disappointing to read. I mean it is what it is, but I planned on getting 35s and a level but didn’t realize I would lose power. It makes sense but I guess my excitement and want, blinded me from the reality


Sent from my iPhone using Tapatalk Pro

 

[69GWC]

Yeah with those big tires you will notice a difference on it, on anything really

 

[mohemipar]

Its do able. Look for a lighter tire (and wheel if changing wheels) like said above. It will help. If you try running a heavy MT and a cinder block of a wheel you are going to put some hurt on that V6. It is already a heavy truck.

 

[yillbs]

Their seems to be a huge language barrier with some people. You won't lose any power, you'll lose the illusion of " power ". When you tow a boat, you're not losing power, and that's essentially what you're doing here, towing a very small boat.

The rotation of the tires will effectively change your gear ratio, so you're going to , again, have the illusion of power being taken from you. In reality, with the 8 speed, you're not. you're going to have a drop in MPG, and you're truck will feel sluggish off the line, but that's not because you've lost power, it's because you changed your gear ratio and made it smaller than it already was.

think of it this way. you are on a 10 speed bike, and you start pedaling in 1st gear. one rotation of your feet equals a quarter rotation of the tire. however; once you get it up to the 10th speed, half a rotation of your feet equals a full tire spin. you are not gaining more power as you move your feet (unless you deliberately push harder / faster ). Say you were a robot and it was just one speed of foot movement . Either way, same thing is happening here, only you're going down instead of up. Luckily for you, it'll be minimal. I'd obviously advise against it merely for the fact you have a v6 and it's already under powered for a truck, no reason to go adding 160 pounds of rubber to the axles!

 

[CLOUDL1GHT]

To all pentastar rams running 35s, have you noticed much power loss since upgraded from stock tires/wheels? I know that fuel economy will take a hit, more concerned about losing power. Thanks

Go with a lighter wheel. Preferably a 17 or 18 inch wheel. And don't run something like a Toyo MT that's heavier than sin. You should be fine.

 

[RedSRT4Me]

Their seems to be a huge language barrier with some people. You won't lose any power, you'll lose the illusion of " power ". When you tow a boat, you're not losing power, and that's essentially what you're doing here, towing a very small boat.

The rotation of the tires will effectively change your gear ratio, so you're going to , again, have the illusion of power being taken from you. In reality, with the 8 speed, you're not. you're going to have a drop in MPG, and you're truck will feel sluggish off the line, but that's not because you've lost power, it's because you changed your gear ratio and made it smaller than it already was.

think of it this way. you are on a 10 speed bike, and you start pedaling in 1st gear. one rotation of your feet equals a quarter rotation of the tire. however; once you get it up to the 10th speed, half a rotation of your feet equals a full tire spin. you are not gaining more power as you move your feet (unless you deliberately push harder / faster ). Say you were a robot and it was just one speed of foot movement . Either way, same thing is happening here, only you're going down instead of up. Luckily for you, it'll be minimal. I'd obviously advise against it merely for the fact you have a v6 and it's already under powered for a truck, no reason to go adding 160 pounds of rubber to the axles!

I mean no disrespect but 35's is a definite power loss whether one wants to call it an illusion or reality.

But I do agree your effective gear ratio will change, performance will suffer and mpg will drop.

To the OP we would doing you an injustice if we didn't share the reality of bigger tires. I was discouraged at the loss of performance but changing the rear gear ratio will fix that.

 

[Yellow dog 55]

I have a leveled pentastar. I’m going with 305/55/20 nitto g2. They measure 33.25” and 12.45” wide. They only weigh 49lbs. I actually prefer the 33” tire look, and I won’t be losing the “power loss” to a gear ratio change from going up in size.

 

[HemiPower36]

Their seems to be a huge language barrier with some people. You won't lose any power, you'll lose the illusion of " power ". When you tow a boat, you're not losing power, and that's essentially what you're doing here, towing a very small boat.

Sent from my iPhone using Tapatalk

 

[TXCOMT]

I have a leveled pentastar. I’m going with 305/55/20 nitto g2. They measure 33.25” and 12.45” wide. They only weigh 49lbs. I actually prefer the 33” tire look, and I won’t be losing the “power loss” to a gear ratio change from going up in size.

Yeah, I thought I'd like 35s on my Reb, but I think, especially reading this thread, I'll keep the stock 33s at each corner for the duration. I already have expensive tires on the wife's ride (a '14 Cayenne S)!

TXCOMT

 

[yillbs]

I mean no disrespect but 35's is a definite power loss whether one wants to call it an illusion or reality.

But I do agree your effective gear ratio will change, performance will suffer and mpg will drop.

To the OP we would doing you an injustice if we didn't share the reality of bigger tires. I was discouraged at the loss of performance but changing the rear gear ratio will fix that.

None taken. Everyone has their opinions, mine just happens to be factual. It is an illusion, their is no actual power loss. The truck still makes 295 Horsepower whether you have 100 pound tires, or 300 pound tires. The rotational force used to move them does nothing more than lower your gear ration. Realistically, not even by that much.

 

[chrisp2493]

None taken. Everyone has their opinions, mine just happens to be factual. It is an illusion, their is no actual power loss. The truck still makes 295 Horsepower whether you have 100 pound tires, or 300 pound tires. The rotational force used to move them does nothing more than lower your gear ration. Realistically, not even by that much.

But it’s still gonna effect your drivetrain loss. Your engine may have the same hp, but hp at the ground will be different. Now this thread didn't change the tire size very much, only about 10 lb difference on the lighter tires. But you could imagine the difference between a 33" street tire and a bigger heavier 35" AT
https://mbworld.org/forums/c63-amg-...ects-wheel-tire-weights-wheel-horsepower.html

I Bleed Ram Trucks

 

[69GWC]

Exactly, hp on the motor has not changed but hp to the ground has. Fact


So what gears does your V6 8sp have in it.

 

[PDTRAD73]

None taken. Everyone has their opinions, mine just happens to be factual. It is an illusion, their is no actual power loss. The truck still makes 295 Horsepower whether you have 100 pound tires, or 300 pound tires. The rotational force used to move them does nothing more than lower your gear ration. Realistically, not even by that much.

Why do you gotta get all technical and stuff? Lol just kidding brotger

Exactly, hp on the motor has not changed but hp to the ground has. Fact


So what gears does your V6 8sp have in it.

3.21s unfortunately. I’m hearing it’s not horrible w the 8 speed trans thought.

 

[69GWC]

I would think stepping to 3:92s would be a must do if going to 35s with the V6.
I have the 3:21s 8sp and 5.7 and I felt the power loss and plan on going to 3:92s at some point to regain what I lost.

 

[RedSRT4Me]

None taken. Everyone has their opinions, mine just happens to be factual. It is an illusion, their is no actual power loss. The truck still makes 295 Horsepower whether you have 100 pound tires, or 300 pound tires. The rotational force used to move them does nothing more than lower your gear ration. Realistically, not even by that much.

I got you. I never quote flywheel hp. At the tire can show the true potential of the vehicle.