4.0 SOHC Flywheel

[Silas Mc]

I live in an area with lots of hills, low speeds, dirt roads and steep driveways. I have a 2006 Ext. Cab with the 4.0 SOHC. I usually have tools in my bed and tow a 5x8 trailer with tools and parts for work. Im going to need to put in a new clutch sooner than I'd like but I'm curious if anyone knows of heavier flywheels for these engines? It might be a marginal improvement for backing into inclined driveways and stop and go's while towing. If I don't see a "performance" gain it will definitely be more forgiving on the new clutch.

 

[franklin2]

I see a company that makes one for the Toyota 4.0 v6. Don't see one for the Ford. In the description of the toyota they say it helps in stop and go and when oversize tires are used. That tells me if you used smaller diameter tires or raised the numbers in the ratio of your gearing, you would achieve the same result.

 

[Silas Mc]

I see a company that makes one for the Toyota 4.0 v6. Don't see one for the Ford. In the description of the toyota they say it helps in stop and go and when oversize tires are used. That tells me if you used smaller diameter tires or raised the numbers in the ratio of your gearing, you would achieve the same result.

I can vision putting on smaller tires but I don't think I would like how goofy it would look. Haha. I thought about different gears too but I think I would lose much more MPG and top end speed. So I suppose its how much trade off I would want...
As far as I know a heavier flywheel does not have significant fuel mileage changes. I wonder if a machine shop can add weight?

 

[bobbywalter]

not sure a 4.0 needs it, but you can have it done.

not overly cheap, but for the intended use it will be noticable.

 

[franklin2]

I can vision putting on smaller tires but I don't think I would like how goofy it would look. Haha. I thought about different gears too but I think I would lose much more MPG and top end speed. So I suppose its how much trade off I would want...
As far as I know a heavier flywheel does not have significant fuel mileage changes. I wonder if a machine shop can add weight?

I would think any addition in rotating mass, anywhere in the driveline all the way out to the tires would decrease fuel mileage.

Big engine, less fuel mileage

Big transmission, less fuel mileage

I am thinking that is the reason they got rid of the Ford 9 inch

Large tires, less fuel mileage

 

[Silas Mc]

I would think any addition in rotating mass, anywhere in the driveline all the way out to the tires would decrease fuel mileage.

Big engine, less fuel mileage

Big transmission, less fuel mileage

I am thinking that is the reason they got rid of the Ford 9 inch

Large tires, less fuel mileage

I agree. But a flywheel is very marginal compared to other things i could do.I would assume my rpm changes would be smoother with more rotational energy. Under certain loads I might save fuel, but lots of stop and go I would lose some trying to spin it up each time.