03-21-2009, 01:19 PM
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#131 (permalink)
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(:
Join Date: Jan 2008
Location: up north
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The H/M car I remember was a Merc Capri with a Perkins 4 banger
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 Today
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Other popular topics in this forum...
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03-21-2009, 01:53 PM
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#132 (permalink)
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Engineering first
Join Date: Mar 2009
Location: Huntsville, AL
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Some technical questions about EGR and the transplanted Jetta TDI: - How is EGR handled?
- Is the EGR tapped ahead of the turbine?
- Is there any attempt to cool it?
My questions might be best addressed if someone has a handy Jetta TDI flow chart or graph.
Thanks,
Bob Wilson
__________________
2019 Tesla Model 3 Std. Range Plus - 215 mi EV
2017 BMW i3-REx - 106 mi EV, 88 mi mid-grade
Retired engineer, Huntsville, AL
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03-23-2009, 08:48 AM
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#133 (permalink)
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Master EcoModder
Join Date: Jan 2008
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Quote:
Originally Posted by Big Dave
One thing that limits the VW TDI (regardless of the car) is its acceleration-oriented gear ratio.
3.89:1 ain't gonna ultimately cut it for big MPG. From what I can see VWs are resistant to gearing changes. Limited gear flexibility is one reason I don't much like front wheel drive.
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The trans in their rabbit is 3.16:1 and their fifth gear set is 0.658, that's pretty much as low as it gets for a VW. |
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03-25-2009, 01:55 PM
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#134 (permalink)
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Master EcoModder
Join Date: Apr 2008
Location: Michigan
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03-25-2009, 02:04 PM
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#135 (permalink)
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Batman Junior
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Thanks for keeping an eye out, Deezler.
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03-25-2009, 02:08 PM
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#136 (permalink)
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Batman Junior
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Anyone else spot the Honda aeromod on the wee bunny?
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03-25-2009, 02:35 PM
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#137 (permalink)
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Administrator
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Using a scangauge as gospel for MPG... yeah, thats not gonna work. Its not even calibrated.
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03-25-2009, 02:37 PM
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#138 (permalink)
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Master EcoModder
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No, I did not...any hints?
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03-25-2009, 02:39 PM
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#139 (permalink)
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Batman Junior
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Do we know that for sure (not calibrated)?
At least they're making the effort to do multiple, bi-directional averaged runs in as controlled-as-possible circumstances. (Very controlled, considering they got booted out by the Man.)
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03-25-2009, 02:41 PM
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#140 (permalink)
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Administrator
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They said they didn't have time to run two tanks of fuel through the car. That sounds to me like they just slapped it in and went.
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