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Discussion Starter #1
Hi all,

I'm at work right now but visited another site on the week end looking for more information regarding 3:73 & 4:10's. Well a couple of guys on this site (I have it saved at home) posted video's of their speedo's, both 3:73's & 4:10's, in all gears showing rpm's at specific mph, 5th gear pull etc. Well let's just say:

"I know longer fear the gear"...lol

This was very informative and has helped me make the decision to go to from 3:73's to 4:10's when I purchase this week. A question I can't seem to find in the searches:

1) I've read that with 4:10's it now becomes easier to move your car then with stock gears. On the highway, even though you are in a higher rpm, the car is not working as hard to get you or keep you at that speed, thus being more efficient. What I couldn't find an answer too was, even though the car is now more efficient, is the higher rpm a negative 'wear & tear' on your engine? Or because you are no where near the redline, the 2V can handle the extra workload?

I am confused around the efficiency vs work load? Does better efficiency mean that with the increase in rpm's it will not take the same toll on your engine because in essence the engine is not working as hard?

Your thoughts are much appreciated,
 

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MM's Mad Scientist
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You will see improved mileage in town and a slight decrease on the highway. I prefer the 4.10's, but that is a matter of personal opinion. The 4.10's just run out too quickly for my taste.
 

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Discussion Starter #8
I know what gear I want.... that's not my question!

I've read that with 4:10's it now becomes easier to move your car then with stock gears. On the highway, even though you are in a higher rpm, the car is not working as hard to get you or keep you at that speed, thus being more efficient. What I couldn't find an answer too was, even though the car is now more efficient, is the higher rpm a negative 'wear & tear' on your engine? Or because you are no where near the redline, the 2V can handle the extra workload?

I am confused around the efficiency vs work load? Does better efficiency mean that with the increase in rpm's it will not take the same toll on your engine because in essence the engine is not working as hard?
 

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MM's Mad Scientist
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5,101 Posts
I know what gear I want.... that's not my question!

I've read that with 4:10's it now becomes easier to move your car then with stock gears. On the highway, even though you are in a higher rpm, the car is not working as hard to get you or keep you at that speed, thus being more efficient. What I couldn't find an answer too was, even though the car is now more efficient, is the higher rpm a negative 'wear & tear' on your engine? Or because you are no where near the redline, the 2V can handle the extra workload?

I am confused around the efficiency vs work load? Does better efficiency mean that with the increase in rpm's it will not take the same toll on your engine because in essence the engine is not working as hard?
OK, once again, that is somewhat true. You will notice an increase in gas mileage in town and a slight decrease on the highway. It is not taking as much to move the car, but higher RPM's require more fuel. (period)
 

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MMs Ford Racing Nut Swinger
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it comes down to physics. @ hiway speeds even though it doesnt take as much effort to maintain your current speed. The engine is turning faster which = more stress on the rotating parts. more stress = more friction more friction = more wear.
 

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MM's Mad Scientist
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5,101 Posts
it comes down to physics. @ hiway speeds even though it doesnt take as much effort to maintain your current speed. The engine is turning faster which = more stress on the rotating parts. more stress = more friction more friction = more wear.
Actually, the greatest stresses recorded in a mechanical device are usually at low rpm's (i.e. "bogging" your engine) and the other end of the spectrum. There will be virtually no difference for the topic at hand.
 

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I Poop Entirely Way Too Much
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the 4.10s make it easier to accelerate just like using 2nd instead of 3rd gear. youll get a lower top speed. if anything it should decrease the load on the engine, I dont think youll be runnin that much higher an rpm that itll hurt ur motor.
 

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I Poop Entirely Way Too Much
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8,720 Posts
it comes down to physics. @ hiway speeds even though it doesnt take as much effort to maintain your current speed. The engine is turning faster which = more stress on the rotating parts. more stress = more friction more friction = more wear.
Actually the majority of wear takes place during start up. Once the engine is at speed and the oil pressure is up, there is no metal to metal contact. The oil pressure creates a liquid bearing thats why its so important to have good clean oil in your car. So while there will be more stress on the engine at greater speed with proper lubrication the metal will not touch and there for not wear.
 

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Discussion Starter #16
the 4.10s make it easier to accelerate just like using 2nd instead of 3rd gear. youll get a lower top speed. if anything it should decrease the load on the engine, I dont think youll be runnin that much higher an rpm that itll hurt ur motor.

Thanks for the input!
 

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Damnit, I pwned myself again. I meant to say 3.37's are what I preferred..........3.73's

AC.... comeone now! are you drunk? are you distracted by internet porn? whats up? messin up all over the place haha.

Yeah, you're the guy who persuaded me on getting my 3.73's. They're sitting downstairs as i type... going on as soon as i can afford it and find a cheap used xcal 2.
 

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o and ac... i tried to send you a pm, but it says you've disabled them... to contact you personally can i send you a message on myspace? do you get on ever?
 
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