New Gears For Titan?? - Page 5

DaFridge · 09-20-2006, 11:57 AM

so let's say you have 6" lift, 35" tires.....what would be the driving characteristics be if you had the 4.10 and if you had the 4.56?
what would be the off-road difference be between the two also?

ptgarcia · 09-20-2006, 12:53 PM

With the 4.10 you'd have low gearing with a ton of torque to creep over those technical obstacles in low range. And you'd have stump pulling power down low. Highway engine speed (rpm) will be 18% higher at any speed than it is now (with 3.36:1 gear ratio). So if you're turning 2000 rpm now at 75 mph you'll be turning 2360 rpm at 75 with the 4.10's. With 4.56's that percentage goes up to 26% and rpm at 75 mph will be 2525 rpm. So basically you'll want/have to slow way down when driving down the open road.

red_rider_elsinore · 09-20-2006, 02:44 PM

Are these engines not suppose to run 2500rpm plus in the open roads? The redline is close to 6k so I don't see a reason why we can't run them at 3k all day. I cruise in my '85 cruiser at 2500rpm. Its redline is around 4k and its still going strong at 180k miles. 'em I missing something here?

ptgarcia · 09-20-2006, 02:58 PM

Quote:

Originally Posted by red_rider_elsinore

Are these engines not suppose to run 2500rpm plus in the open roads? The redline is close to 6k so I don't see a reason why we can't run them at 3k all day. I cruise in my '85 cruiser at 2500rpm. Its redline is around 4k and its still going strong at 180k miles. 'em I missing something here?

Nah, not going to hurt anything. Try it, and see what you think.

red_rider_elsinore · 09-21-2006, 02:03 PM

Since I don't plan on going bigger than 33's, I'll try to get the 4.10. That should put me around 2300k rpm at 80mph. Since there is no programmer in the market available, what will we do to fix the gearing change and when will the gears be available?

ptgarcia · 09-21-2006, 02:31 PM

Quote:

Originally Posted by red_rider_elsinore

Since there is no programmer in the market available, what will we do to fix the gearing change and when will the gears be available?

Nothing...

tillery444 · 09-21-2006, 02:47 PM

I'm not to smart when it comes to gears but, I wan't big tow towning capability with stock accereration while runnin 35's. I currently have non-big tow runnin 35's. What would that be? And as far as MPG goes, who cares, it's a Titan!

ptgarcia · 09-21-2006, 02:51 PM

Quote:

Originally Posted by tillery444

I'm not to smart when it comes to gears but, I wan't big tow towning capability with stock accereration while runnin 35's. I currently have non-big tow runnin 35's. What would that be? And as far as MPG goes, who cares, it's a Titan!

You'll want 3.73's.