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Aryana Samba Member
Joined: November 09, 2015 Posts: 568 Location: Southern CA
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Posted: Sun Sep 23, 2018 3:42 am Post subject: Re: What RPM do you cruise at? |
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4500-5000
All day long on a stock WBX. This engine thrives with the lower cylinder pressures of high rpm operation. |
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Jake de Villiers Samba Member
Joined: October 24, 2007 Posts: 5911 Location: Tsawwassen, BC
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Posted: Sun Sep 23, 2018 10:09 am Post subject: Re: What RPM do you cruise at? |
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With my gearing 3200RPM = 68MPH The engine's plenty quiet this way, so there's just the wind noise to deal with.
Its mechanically just as quiet at 75MPH but the wind noise gets to be oppressive unless we're running before the wind. _________________ '84 Vanagon GL 1.9 WBX
'86 Westy Weekender Poptop/2.5 Subaru/5 Speed Posi/Audi Front Brakes/16 x 7 Mercedes Wheels - answers to 'Dixie'
@jakedevilliersmusic1
http://sites.google.com/site/subyjake/mydixiedarlin%27
www.crescentbeachguitar.com
www.thebassspa.com |
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kamzcab86 Samba Moderator
Joined: July 26, 2008 Posts: 7892 Location: Arizona
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Posted: Sun Sep 23, 2018 10:16 am Post subject: Re: What RPM do you cruise at? |
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cmayna wrote: |
dougass wrote: |
2.1 Automatic - typically cruise at 3800-4200 RPM, pending slope & momentum. |
Me too!! |
Me three. _________________ ~Kamz
1986 Cabriolet: www.Cabby-Info.com
1990 Vanagon Westfalia: Old Blue's Blog
2016 Golf GTI S
"Real knowledge is to know the extent of one's ignorance." - 孔子 |
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Vilas69 Samba Member
Joined: June 29, 2015 Posts: 21 Location: Portugal
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Posted: Mon Sep 24, 2018 5:26 am Post subject: Re: What RPM do you cruise at? |
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Jake de Villiers wrote: |
With my gearing 3200RPM = 68MPH The engine's plenty quiet this way, so there's just the wind noise to deal with.
Its mechanically just as quiet at 75MPH but the wind noise gets to be oppressive unless we're running before the wind. |
Speaking of wind noise, does anyone have tips/tricks to lower the wind noise when cruising at +60mph? After changing the gearbox ratios to suit the TDI upgrade and sounddeading the van, wind noise starts to be the problem |
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dougass Samba Member
Joined: December 13, 2016 Posts: 300 Location: NJ
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Posted: Mon Sep 24, 2018 5:48 am Post subject: Re: What RPM do you cruise at? |
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Vilas69 wrote: |
Speaking of wind noise, does anyone have tips/tricks to lower the wind noise when cruising at +60mph? After changing the gearbox ratios to suit the TDI upgrade and sounddeading the van, wind noise starts to be the problem |
I just went through sound proofing, it took a load of road noise out of the van wind noise is still present from behind the dash and windshield, etc. I am very happy with the results - everything from www.sounddeadenershowdown.com
-Trunk Acoustic mat covers over the engine
-CLD+CCF+MLV on the floor and doors. Added reflectix on the hump where the floor gets hot, significant reduction in temperature. I didnt take out the dash - when the day comes that I do, I will load it up in there as well. _________________ '91 GL - 2.1 automatic named Klaus for weekend adventures.
#klausvan & @thisisklausvan |
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mellowslow Samba Member
Joined: July 31, 2009 Posts: 278 Location: Vacationland
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Posted: Mon Sep 24, 2018 6:09 am Post subject: Re: What RPM do you cruise at? |
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4000 @ 70 mph
avg 22 mpg
205/65/15 _________________ '87 WBWE FAS Gen V |
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Aryana Samba Member
Joined: November 09, 2015 Posts: 568 Location: Southern CA
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Posted: Mon Sep 24, 2018 7:23 am Post subject: Re: What RPM do you cruise at? |
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Vanistan fresh air control kit eliminates a huge amount of wind noise at freeway speeds. |
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gears Samba Member
Joined: October 28, 2002 Posts: 4391 Location: Tamarack, Bend, Kailua
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Posted: Mon Sep 24, 2018 7:56 am Post subject: Re: What RPM do you cruise at? |
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In my Syncro tintop with 2.5 Subie engine, I run about 71mph @ 4,000 (stock .85 4th gear with stock 25" tires). Because I run up the mountain all the time, I wouldn't want taller gearing in this vehicle.
In my heavier Syncro Westy with SVX engine, I've been running too tall a 4th gear (.78) for my 27" tires, and intend to drop the ratio down to .837, giving me a 70mph cruising rpm of 3,500.
Straying a bit from the thread ..
Here is the result of someone (not me) loaning their SVX van to an unsympathetic driver who lugged 4th gear for just a couple thousand miles:
https://www.thesamba.com/vw/gallery/pix/1805062.jpg
https://en.wikipedia.org/wiki/Brinelling
https://en.wikipedia.org/wiki/False_brinelling
I suspect this to be a common result for Tdi (or 6 cylinder) powered vehicles lugged for long distances at too low an rpm. (I'm doing 3 things to combat this issue besides advising not to go too tall on gearing, but that's for another thread.) _________________ aka Pablo, Geary
9.36 @ 146 in '86 Hot & Sticky
'90 Syncro Westy SVX
'87 Syncro GL 2.5
https://guardtransaxle.com |
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AndyBees Samba Member
Joined: January 31, 2008 Posts: 2310 Location: Southeast Kentucky
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Posted: Mon Sep 24, 2018 8:25 am Post subject: Re: What RPM do you cruise at? |
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What is that photo of?
Do you have a link to the Thread where this was discussed? _________________ '84 Vanagon Tin-top, ALH TDI. 1989 Tin-top
1983 Air-cool, 225k miles, 180k miles mine. Seven trips to Alaska from 1986 thru 2003. |
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gears Samba Member
Joined: October 28, 2002 Posts: 4391 Location: Tamarack, Bend, Kailua
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Posted: Mon Sep 24, 2018 8:40 am Post subject: Re: What RPM do you cruise at? |
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Sorry .. that's the bore of 4th gear, where the individual bearing needles have pounded their imprint into the gear material. It's been discussed before, but I don't have an immediate link .. _________________ aka Pablo, Geary
9.36 @ 146 in '86 Hot & Sticky
'90 Syncro Westy SVX
'87 Syncro GL 2.5
https://guardtransaxle.com |
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