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Re: Woo Hoo! Santa came early....
Oh, yeah! Bottom line, there is about 50-60 ft of rubber on the pavement in front of my house. :tup: Went out to get the mail and decided to pace it off, and I was surprised how long it was! That was just WOT from standing start. No brakes, etc.
So, do you need to know more?
Ok.... The Eaton unit works really well, and after a week or so of use, it was performing just as promised. Smooth, and feels like an open rear under normal driving, but it does lock up the rear under moderate and higher throttle levels. Very easy to swing the back end around when making a turn from stand still. When driving around curvy back country roads, the rear stays planted under all but the most aggressive throttle. Then you can feel the inside tire start to skuff the pavement as the rear locks. Driving in the rain is great. No more one wheel spins at traffic lights, or trying to pull into traffic. With moderate throttle, the car just scoots right along. Driving in the snow is great. I can now drive right up my snow covered driveway, even after the snow is packed down hard. Light throttle gets me up to the top of the hill, and only a little wheel spin at the steepest point. Some weights in the back will help a lot.
The gears make an incredible difference in acceleration. The motor is right into the hp band and the car rockets right along. Passing on the highway doesn't even need a downshift. But if you do stab the throttle down and it downshifts, the motor is right into the max hp and performance is wonderful. Press the throttle to the floor quickly, (but slow enough to not get wheel spin) and the car launches hard, comes out of first fast, and often lurches or chirps the tires going into second. This depends on how the trans shifts are set in the PCM tune. Mine is set to just a little firmer than stock. Gears run silent at highway speeds, accelerating and decelerating, but feather the throttle at about 40-50 mph and there is a distinct "white noise" coming from the rear.
Once the PCM was updated for the 3.73's, (and the crank shaft sensor learn was done by the dealer) the car will shift into 4th at 40mph under light throttle. That's down from 47 or so with the 3.08's.
65 mph is about 2350 rpm or so. 70 mph is 2500, and 80 is 2600. Above that I don't bother to look at the dash. :D
Took getting used to the higher RPM's, as I was used to doing 65 at about 1900.
Fuel economy for my mostly highway driving was 27 at best, but mostly above 26. (26.5 -26.8) With the 3.73's, same driving is coming in at 25.8 mpg. And the PCM tune is worth at least 1 mpg, so it pays to have the PCM tuned to help offset any loss.
I had the PCM tune set to use 89 octane, and yesterday I filled up with 89 for the first time. I was surprised to feel a real difference. Car seems to pull a harder, especially when accelerating normally. Will probably keep filling with 89. It will be interesting to see if this helps fuel economy any.
Its not going to make it feel like a V8, but it will feel like you found 50 hidden HP.
PS, I still have the factory single outlet exhaust, and no mods other than the common intake mod.
Originally posted by BallerMaro13
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Originally posted by Bonemaro
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So, do you need to know more?
Ok.... The Eaton unit works really well, and after a week or so of use, it was performing just as promised. Smooth, and feels like an open rear under normal driving, but it does lock up the rear under moderate and higher throttle levels. Very easy to swing the back end around when making a turn from stand still. When driving around curvy back country roads, the rear stays planted under all but the most aggressive throttle. Then you can feel the inside tire start to skuff the pavement as the rear locks. Driving in the rain is great. No more one wheel spins at traffic lights, or trying to pull into traffic. With moderate throttle, the car just scoots right along. Driving in the snow is great. I can now drive right up my snow covered driveway, even after the snow is packed down hard. Light throttle gets me up to the top of the hill, and only a little wheel spin at the steepest point. Some weights in the back will help a lot.
The gears make an incredible difference in acceleration. The motor is right into the hp band and the car rockets right along. Passing on the highway doesn't even need a downshift. But if you do stab the throttle down and it downshifts, the motor is right into the max hp and performance is wonderful. Press the throttle to the floor quickly, (but slow enough to not get wheel spin) and the car launches hard, comes out of first fast, and often lurches or chirps the tires going into second. This depends on how the trans shifts are set in the PCM tune. Mine is set to just a little firmer than stock. Gears run silent at highway speeds, accelerating and decelerating, but feather the throttle at about 40-50 mph and there is a distinct "white noise" coming from the rear.
Once the PCM was updated for the 3.73's, (and the crank shaft sensor learn was done by the dealer) the car will shift into 4th at 40mph under light throttle. That's down from 47 or so with the 3.08's.
65 mph is about 2350 rpm or so. 70 mph is 2500, and 80 is 2600. Above that I don't bother to look at the dash. :D
Took getting used to the higher RPM's, as I was used to doing 65 at about 1900.
Fuel economy for my mostly highway driving was 27 at best, but mostly above 26. (26.5 -26.8) With the 3.73's, same driving is coming in at 25.8 mpg. And the PCM tune is worth at least 1 mpg, so it pays to have the PCM tuned to help offset any loss.
I had the PCM tune set to use 89 octane, and yesterday I filled up with 89 for the first time. I was surprised to feel a real difference. Car seems to pull a harder, especially when accelerating normally. Will probably keep filling with 89. It will be interesting to see if this helps fuel economy any.
Its not going to make it feel like a V8, but it will feel like you found 50 hidden HP.
PS, I still have the factory single outlet exhaust, and no mods other than the common intake mod.
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