Gear Vendors Overdrive Unit
#15
I'm not sure if you will reap the benefits you seek. I ran a G/V unit on a quarter mile trUck only because the truck ran out of gear near the end of the run. Other then that benefit, it was just fun to play with. Back then g/v were bulletproof, not so sure now. The up or down advantage is only 250 RPM at best so you need to equate that to the hassle of the installation.
You mentioned running 80+ MPH while heading to the river so I assume your towing something. Frankly, I can't imagine running that fast or that long towing anything especially on 35's.
But hey, that's just my opinion, your's may vary.
You mentioned running 80+ MPH while heading to the river so I assume your towing something. Frankly, I can't imagine running that fast or that long towing anything especially on 35's.
But hey, that's just my opinion, your's may vary.
#17
#18
I think that is my point..... In an optimum situation the engine should operate at peak efficiency., (follow the torque curve, if you will ) once that rpm is determined, the g/v unit may or may not put you there at highway speeds.
As I said earlier, just my opinion.
BTW, Nadirpoint, glad that yours is holding up well, I am curious as to how often you use it as opposed to how often you need it.
As I said earlier, just my opinion.
BTW, Nadirpoint, glad that yours is holding up well, I am curious as to how often you use it as opposed to how often you need it.
#19
I think I drive it around 80% highway unloaded and it's engaged 5th over during that time. That puts me at 1800rpm with 4.10 gears, 5th over at 70mph with 34" tires. Perfect highway cruise setup.
Another big issue is where the GV puts you in any given gear, towing for example. That's where it really shines: 4th over (direct) for towing heavy. It's also really nice for those winding steep grades where a downshift kills you but popping the GV out keeps you up on the turbo without downshifting.
Another big issue is where the GV puts you in any given gear, towing for example. That's where it really shines: 4th over (direct) for towing heavy. It's also really nice for those winding steep grades where a downshift kills you but popping the GV out keeps you up on the turbo without downshifting.
Last edited by NadirPoint; 06-27-2010 at 03:44 PM.
#20