Yeah, my 1st gear is pretty decent, but then everything else is too close. I'm in 5th by 30mph with reasonable acceleration, I can ride 5th down to 20 and re-accelerate, and it won't stall in 5th down to 12mph.....then I'm at 3000 rpm on the highway. Sure, it's lively on the highway without having to downshift, but really there's no reason the gears need to be so close.
In fact, not only would economy benefit, but acceleration would too; if 2nd was just a little taller, it could get up to 60 in 2nd and lose 1 second worth of shifting, instead 2nd goes to like 54 or so. Marketing and engineering departments both failed on the gear ratios... |
interesting... I hadn't thought of that issue.
Your pain is the start, in first gear. My pain is at speeds above 50-55 in 5th. Anything between those, we should have equivalent options. Maybe it's a different gear, but the speed/rpm combination is similar. |
1993: "First gear is so tall"
First gear in my '95 VX feels a bit tall, but I figured that's because my tires (175/70) are larger than stock. This gives me a speedometer error of more than 2%. Sometimes I think having the stock size would be nice. I wonder what your tire size is. |
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3 car lengths is about 50 feet. Driving 68mph, you travel the distance of 3 car lengths in precisely one half second. I'm not sure how many "several", but I usually think of it meaning about 4 which is about 67 feet and precisely 2/3 of a second time lapse between you and the trailer. Quote:
225 feet is 2.25 seconds time lapse at 68mph between you and the trailer and is 13.5 car lengths back. So it looks like I can resume drafting at a safe distance without endangering myself or truckers--a win win. Good news! I wish I had a spacial sense for how far back 200 feet is from the back of a tractor trailer. |
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"My tire size is the same as you"
Thanks for responding. That's what I figured. Out of all the VXs on this forum, I've noticed just one who is using the stock tire size (and it's because it's a low-mileage car with the original tires). You probably know who I mean. I think the bigger tires most of us use are a mixed blessing. One drawback is they make 1st gear a little too tall, as you noticed. |
Best way I found to guage the distance is counting the stripes between yourself and the truck. The stripe and the space between is about 43 feet.
If I am following a big rig I like to see at least 3 stripes between us or about 125 feet, which is close to stopping distance and enough time to avoid a chunk of truck tire on the road or other debris. If I get closer than that I will go to neutral or even back to fifth with no gas pedal to shut off the fuel if I need to decelerate. Here is the ebay auction number if you want to see my VX before it was fixed. Should get some paint on it in the next couple of weeks. Almost time for second oil change. Auction #230220896589 regards gary |
Hi Gary, you probably noticed I was just talking about you.
"Here is the ebay auction number" This is a direct link for that page (folks, take a look now, because after a while eBay will take the page down). That's a super find. Like you said, it's a time capsule. It's great that you were able to get it back on the road and save it from various ignominious fates. |
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All this is confirmed by the post Holycow referred to: "notes from this mornings commute... on a 2-3 mile stretch on a constant downward grade at ~68mph (via gps) I noticed the MDF stated I was getting ~57mpg's in an open lane. Behind a box truck with a 1.5 count I dropped to ~50 mpg's. Behind the same truck with a 3 count I jumped up to 75-80mpg's and sustained that until I pulled out from behind it. The grade was very constant and I was moving within the draft and keeping a specific distance and the exerted effort of the car was noticable.. but I tested this a few times, followed that truck for ~18 miles and noticed the 3 count was critical to making the drafting work; too close and it actually hurt performance slightly, too far back and it hurt alot.. that 3 count rule.. JUST RIGHT... thanks guys..." So, too close meant less effective draft for him. __________________ So there you have it. 3 stripes the charm. |
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