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trade in 5.3 for a 6.2?

MFleury

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nards444 Senior Enthusiast

nards444

Posted
Posted

This isn't a Ford forum, so expect friendly.LOL

 

Everyone keeps going to normal driving, but I'm not talking about that.

 

I'm talking about maintaining one speed. Do any of you own a car with a clutch? Do you know how heavy your flywheel is? Do you know how much it weighs with the clutch also? It's usually pretty heavy. You know what happens when you put a lightweight flywheel on it? It revs up and down faster because 10 pounds off of rotating mass is like 100 pounds off the weight of the car. (rule of thumb). It also makes the car harder to drive, if you could just slip the clutch out before without gas and you take 10 pounds off the flywheel it will stall when you try. If you take enough weight of the motor will stall every time you try to let it idle unless you raise the idle. This is because there isn't enough inertia to get to through the next cycle and maintain the revs. If you put heavy wheels on it it will take longer to get to 70 at any throttle and it will take longer to get to 0 no matter which way you do it. You can brake as hard both ways and it will maintain the speed longer. You can coast as the cruise control does and where just throttling down would work before you might find it down shifting to increase the engine braking. Oh, here is one, I use to have a Honda back in 98 and I took the stock 22 pound flywheel off and put on an 11 pound one with a race clutch for some spray. If I used cruse control on the highway and it was flat everything was fine, but up and down hills (over passes are the only hills here) it would jerk forward and back as the old throttle inputs would sling the car around because the reduced mass doesn't maintain speed the same.

 

Most people don't do all highway driving, so this will not be useful, but if you have a car that spends 95% of the time on the highway you could gain from it. Keep in mind the higher ratio of sprung weight to unsprung weight equals comfort. As your unsprung weight gets closer to sprung weight you loose that riding on a cloud feeling. However almost no one does this and will benefit from lighter until it's jerky to drive.

still not real world though. Even those on the highway 95% are still stopping and starting even if its small.

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Crf450r420 Enthusiast

Crf450r420

Posted
Posted

Unsprung weight will never make your car jerky. A flywheel is rotating mass but it is not unsprung weight. Apples and oranges.

Mixing things up again. I was just warning that if you go adding heavier wheels you will reduce your ride quality. Nothing about that applies to the rest of that.
Higgs Boson Enthusiast

Higgs Boson

Posted
Posted

Mixing things up again. I was just warning that if you go adding heavier wheels you will reduce your ride quality. Nothing about that applies to the rest of that.

 

Except that is not true.

Jimmy W Enthusiast

Jimmy W

Posted
Posted

Best thing I have ever did to mine was a Custom Tune,He made it shift a whole lot better with changing the shift points,Fuel mileage increased,HP increased,It is a different animal.It was a huge difference and would not own another vehicle without a custom tune again.This is his info.good luck

 

 

http://www.diablewtune.com/

48548 Enthusiast

48548

Posted
Posted

Best thing I have ever did to mine was a Custom Tune,He made it shift a whole lot better with changing the shift points,Fuel mileage increased,HP increased,It is a different animal.It was a huge difference and would not own another vehicle without a custom tune again.This is his info.good luck

 

 

http://www.diablewtune.com/

I did that with my trinity and upload him the data. Lew is a good guy. He will really work with you.
Crf450r420 Enthusiast

Crf450r420

Posted
Posted

 

Except that is not true.

You are saying heavier wheels will not reduce ride quality?
Crf450r420 Enthusiast

Crf450r420

Posted
Posted

still not real world though. Even those on the highway 95% are still stopping and starting even if its small.

Fine I was wrong it won't take less energy it would be equal once at speed with all other variables the same.
Higgs Boson Enthusiast

Higgs Boson

Posted
Posted

You are saying heavier wheels will not reduce ride quality?

sorry I don't know how I read that as lighter wheels instead of heavier.

 

that's what I get for posting while working.

 

I agree that heavier wheels and tires have a negative impact on every aspect of the driving experience, including ride quality.

Crf450r420 Enthusiast

Crf450r420

Posted
Posted

I know what you mean one of my posts was what I could get in at a red light. Useless is what it was. Lol

darkfox1 Senior Enthusiast

darkfox1

Posted
Posted

My 5.3 will do a burn out if I put the pedal down, but if I'm just tooling around it feels a bit sluggish.

 

The only time I really wish I had more power is passing on the interstate or cruising at highway speeds. I cant climb a hill at 70 without downshifting and staying downshifted for several seconds.

 

I test drove a few 6.2s, they were BEASTS had all the power I'd ever need in a truck.. but I coudln't get a non-loaded truck with a 6.2, and price forced me out.

 

If I won the lotto.. I'd trade mine in for a 6.2 for sure.

 

My truck has a 3.08

crushNchowda Senior Enthusiast

crushNchowda

Posted
Posted

My 5.3 will do a burn out if I put the pedal down, but if I'm just tooling around it feels a bit sluggish.

 

The only time I really wish I had more power is passing on the interstate or cruising at highway speeds. I cant climb a hill at 70 without downshifting and staying downshifted for several seconds.

 

I test drove a few 6.2s, they were BEASTS had all the power I'd ever need in a truck.. but I coudln't get a non-loaded truck with a 6.2, and price forced me out.

 

If I won the lotto.. I'd trade mine in for a 6.2 for sure.

 

My truck has a 3.08

Your issues isn't the moto it is the gearing - 100%

nards444 Senior Enthusiast

nards444

Posted
Posted

My 5.3 will do a burn out if I put the pedal down, but if I'm just tooling around it feels a bit sluggish.

 

The only time I really wish I had more power is passing on the interstate or cruising at highway speeds. I cant climb a hill at 70 without downshifting and staying downshifted for several seconds.

 

I test drove a few 6.2s, they were BEASTS had all the power I'd ever need in a truck.. but I coudln't get a non-loaded truck with a 6.2, and price forced me out.

 

If I won the lotto.. I'd trade mine in for a 6.2 for sure.

 

My truck has a 3.08

Your gearing is most of the issue, hate to say it but that truck is not going to move in a hurry. A 5.3 engine with 3.73s will not feel much less than a 6.2 with 3.42s. Ive contended if the 6.2 is going to stay in the 1/2 tons they will have to open it up in other models. After initial waves buys them, I just dont see them selling enough of them to keep them in production.

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