

| Subject: | Re: Fuel consumption in different gears - how does the energy / fuel work? |
| From: | Chris S. |
| Date: | Sun, 25 Mar 2012 17:13:50 -0400 |
DJ code WBX torque peak is at 2700 rpm. MV is not far from that, although I don't remember exactly. Chris. Wysłane z iPhone'a Dnia Mar 25, 2012 o godz. 16:37 Kim Brennan <kimbrennan@MAC.COM> napisał(a): > While the waterboxer has a good amount of torque at low rpms, if I remember correctly, it's maximum torque is around 4000 rpms. VW's Inline 4 (2.0 liter) maximum torque (again from memory) is somewhere north of 5000 rpms (5800?) > > (I'm not doing the internet research to back up my memory, since I'm on a slow connection.) > > > On Mar 25, 2012, at 4:15 PM, Don Hanson wrote: > >> Anecdotal: No real data or statistics other than 60k mile of personal >> experience with a 5sp inline VW powered 2wd. >> >> I always get better gas mileage when I run at a higher RPM and a lower >> gear unless I am running on a freeway at a sustained speed that demands top >> gear.......When I do extended logging road cruising or off road backroads, >> or even go through the mountains at high elevations, I normally gear down >> and run my ABA 2.0 liter motor at around 3500rpms in whatever gear gives me >> a reasonably safe speed...without lugging the motor. If my rpms drop to >> below about 2800rpm, I select my next lower gear, or when I come to a >> corner or a hill that I know will slow me dramatically on exit...I shift >> down, rather than waiting till I 'find it won't maintain speed' and then >> shift down. >> I think keeping in the range of rpms where the engineers designed the motor >> to make it's best power, that is where you will be most economical with >> fuel consumption. >> >> I understand the WBX motor was designed to run at lower rpms....so I am >> sure it works better there..the inline VW I have seems to be best between >> 3500 and 4500...maybe 5000, so that is where I drive it and my gas >> consumption goes down if I let the revs fall... And as Frank said, lugging >> a small engine with a big load is NOT a good plan unless it was built to do >> that, and Jetta motors were not. >> Don Hanson
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