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dgbeatty
Samba Member
Joined: October 26, 2006
Posts: 702
Location: Sacramento
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 Posted: Tue Sep 01, 2020 6:51 am Post subject: Re: Rostra / GW Cruise control DIP Switch settings? |
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These settings have worked well for several years. Some speed variance but very smooth.
the servo is located where the idle control unit once was. The cable was shortened to provide a gentle arc.
Westy full camper, 2.5 Subaru, manual transmission, microswithes on both pedals, 10watt resistor on brake light circuit (leds)
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kourt
Samba Member
Joined: August 13, 2013
Posts: 1948
Location: Austin, TX
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| Posted: Tue Nov 03, 2020 9:25 am Post subject: Re: Rostra / GW Cruise control DIP Switch settings? |
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| kourt wrote: |
| There's already a VSS for the Bostig's ignition control module, but it's of unknown wave type and pulse. I suppose I could put my oscilloscope on it and figure it out, but I wanted a separate VSS for the Rostra. Heck, I don't need the oscilloscope--I know it's a sine wave. |
For the record, I was wrong about this. The Bostig VSS is a square wave device. My oscilloscope confirmed it, and an email to Jim Akiba at Bostig also confirmed it.
I've got the Rostra mounted in the engine bay like jimf909--thanks, those photos were helpful.
I've got the wiring bus running from the engine bay to the dashboard for the brake/stalk/power runs.
I still have some wiring to do, but thought I would post this update. I'll followup when I get things running right.
kourt |
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jimf909 
Samba Member
Joined: April 03, 2014
Posts: 7477
Location: WA/ID
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| Posted: Tue Nov 03, 2020 4:31 pm Post subject: Re: Rostra / GW Cruise control DIP Switch settings? |
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| a2wolfsburggli wrote: |
| jimf909 wrote: |
| I have the Rostra Universal cruise on my Bostig (I installed one in a different car too) and I love it. It works just as I expect compared to a modern car (minus the +/-1 mph or +/-5 mph option that my modern car has). |
Mine does +/-1 with the accel / decel buttons. Doesn't yours?
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Late reply, but yes, the +/- 1 mph works. I really like the +/- 5 mph button on my modern VW.
FWIW, here's a photo of the settings on the Rostra for my Bostig setup. I've been using these for five years or so and am satisfied with the results. Speed is held constant, say w/in 3 mph until there's a notable hill.
Bostig, 2WD, manual transmission. The cuttoff switch on the clutch is nice because I just need to tap the clutch pedal to disengage the cruise. A switch on the brake pedal would be nice to avoid having to register braking with the pressure switch.
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| Abscate wrote: |
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Current: 1990 Westy Camper - Bostig RG4, 2wd, manual trans w/Peloquin, NAHT high-top, 280 ah LFP battery, 160 watts solar, Flash Silver, seam rust, bondo, etc., etc.
Past: 1985 Westy Camper - 1.9 wbx, 2wd, manual trans, Merian Brown, (sold after 17 years to Northwesty who converted it to a Syncro). |
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webwalker
Samba Member
Joined: January 26, 2006
Posts: 2803
Location: Mount Laurel, NJ
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| Posted: Mon Nov 01, 2021 5:37 am Post subject: Re: Rostra / GW Cruise control DIP Switch settings? |
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A note for everyone following this thread: I started looking into the Rostra for my 77 Bay with Subaru EJ22 and discovered that Dakota Digital is now selling Rostra products under their own flag (even though the molding on the case still says Rostra.)
Better price? Worse? I dunno. But I thought it was worth bringing up.
webwalker
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1977 CE1 Transporter Deluxe, Subaru EJ22, Skills Cooling, Steedle HD 091 w/ GuardT .82 4th
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Corwyn
Samba Member
Joined: December 29, 2009
Posts: 2238
Location: Olympia, Washington
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| Posted: Thu Jan 13, 2022 10:29 pm Post subject: Re: Rostra / GW Cruise control DIP Switch settings? |
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I've read the entire thread and didnt see the answer I need: what setting needs to be adjusted when the cruise disengages going uphill or into a strong headwind?
_________________
'90 White Westy ("The Longship")
FAS Gen V 2.0
The Annual Baja Rally
https://www.thesamba.com/vw/forum/viewtopic.php?t=604813&highlight=baja
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VicVan
Samba Member
Joined: July 01, 2015
Posts: 1845
Location: Vancouver Island, BC
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| Posted: Thu Jan 13, 2022 10:55 pm Post subject: Re: Rostra / GW Cruise control DIP Switch settings? |
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Found this in the Rostra manual, hope it helps
According to this and your symptoms, I'd test a higher "engine/setup timer" value. (Disclaimer: I am not familiar with this system, I'm just reading the manual...)
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Corwyn
Samba Member
Joined: December 29, 2009
Posts: 2238
Location: Olympia, Washington
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| Posted: Thu Jan 13, 2022 11:04 pm Post subject: Re: Rostra / GW Cruise control DIP Switch settings? |
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It's not a problem when running - no significant surge or delay; it just disengages when challenged. I sent a msg to Rostra. Thanks for your help.
_________________
'90 White Westy ("The Longship")
FAS Gen V 2.0
The Annual Baja Rally
https://www.thesamba.com/vw/forum/viewtopic.php?t=604813&highlight=baja
"If anything's" gonna happen, it's gonna happen out there"
~ Captain Ron ~ |
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a2wolfsburggli
Samba Member
Joined: October 30, 2018
Posts: 279
Location: WI
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| Posted: Fri Jan 14, 2022 7:39 am Post subject: Re: Rostra / GW Cruise control DIP Switch settings? |
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| Corwyn wrote: |
| I've read the entire thread and didnt see the answer I need: what setting needs to be adjusted when the cruise disengages going uphill or into a strong headwind? |
That has nothing to do with wiring and everything to do with your linkage or the rostra cable binding up and putting too much pressure on the servo / worm gear in the unit. It could also be how much slack you have in the rostra cable or how much travel the cable is allowed (or more accurately NOT allowed.)
Your solution is to check for binding. ESPECIALLY if you're running an automatic and not going direct to the TB. The kick down linkage can cause the extra stress sometimes.
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Current: '87 Westfalia | '16 Audi Q5 3.0T S-Line w/sport package.
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Corwyn
Samba Member
Joined: December 29, 2009
Posts: 2238
Location: Olympia, Washington
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| Posted: Thu Jan 27, 2022 6:40 pm Post subject: Re: Rostra / GW Cruise control DIP Switch settings? |
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Ok, now I'm buggered. The cable is connected, the fuses are all good, the LED on the dash control is lit . . . and the cruise control will not set.  Is there a ground or power wire I missed?
I'm very used to driving with my foot, but I'm in southern AZ, and the looooong straight stretches on I-10 and I-8 BEG for cruise control.
_________________
'90 White Westy ("The Longship")
FAS Gen V 2.0
The Annual Baja Rally
https://www.thesamba.com/vw/forum/viewtopic.php?t=604813&highlight=baja
"If anything's" gonna happen, it's gonna happen out there"
~ Captain Ron ~ |
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a2wolfsburggli
Samba Member
Joined: October 30, 2018
Posts: 279
Location: WI
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| Posted: Fri Jan 28, 2022 7:37 am Post subject: Re: Rostra / GW Cruise control DIP Switch settings? |
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| Corwyn wrote: |
Ok, now I'm buggered. The cable is connected, the fuses are all good, the LED on the dash control is lit . . . and the cruise control will not set. Is there a ground or power wire I missed?
I'm very used to driving with my foot, but I'm in southern AZ, and the looooong straight stretches on I-10 and I-8 BEG for cruise control. |
There is a diagnostics mode for the Rostra that's described in the Manual. You'll need to run though that till you find your bad connection or wiring or dip switch setting. If everything checks out there, Rostra's help line is very good at troubleshooting and if it turns out to be a bad unit they'll get you sorted.
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Current: '87 Westfalia | '16 Audi Q5 3.0T S-Line w/sport package.
Past: '09 CC 3.6L 4motion "R36 wannabe" | '02 Audi TT "ALMS Edition" | '84 Jetta GLI with Autotech Supercharger | '89 Helios Jetta GLI 16v's (x2) | '95.5 URS6 | and the list goes on.
Never underestimate the entertainment value of OCD overruling Common Sense |
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Corwyn
Samba Member
Joined: December 29, 2009
Posts: 2238
Location: Olympia, Washington
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| Posted: Fri Jan 28, 2022 8:04 am Post subject: Re: Rostra / GW Cruise control DIP Switch settings? |
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Thanks. The unit was installed by Peace Vans when the FAS 2.0 GEN V was installed, so I don't have a manual. I'll contact Rostra directly.
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'90 White Westy ("The Longship")
FAS Gen V 2.0
The Annual Baja Rally
https://www.thesamba.com/vw/forum/viewtopic.php?t=604813&highlight=baja
"If anything's" gonna happen, it's gonna happen out there"
~ Captain Ron ~ |
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16CVs
Samba Member
Joined: February 22, 2004
Posts: 4026
Location: Redwood City, California
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| Posted: Fri Jan 28, 2022 10:03 am Post subject: Re: Rostra / GW Cruise control DIP Switch settings? |
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Have you looked at the GW site? they have basic setting info in a PDF. I would imagine that the rest of it is just standard Rostra.
I've installed one of these kits on a 95 1.9 AT Westy and unless the pavement is level and smooth it would not work. I played with the dip switches and got it to work but only under ideal conditions.
People with larger engines seem to have better luck though.
Stacy
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1989 Syncro Tristar Triple knob "Swedish"
2013 Jetta Hybrid a true "Zwitter"
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VicVan
Samba Member
Joined: July 01, 2015
Posts: 1845
Location: Vancouver Island, BC
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| Posted: Fri Jan 28, 2022 10:08 am Post subject: Re: Rostra / GW Cruise control DIP Switch settings? |
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Corwyn, you could also try to contact FAS directly.
Where is the unit mounted, and how is the cable routed? Do you have pictures?
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SyncroHead
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Joined: May 23, 2005
Posts: 1145
Location: Northern Nevada
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| Posted: Fri Jan 28, 2022 10:15 am Post subject: Re: Rostra / GW Cruise control DIP Switch settings? |
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| Corwyn wrote: |
| It's not a problem when running - no significant surge or delay; it just disengages when challenged. I sent a msg to Rostra. Thanks for your help. |
| Corwyn wrote: |
Ok, now I'm buggered. The cable is connected, the fuses are all good, the LED on the dash control is lit . . . and the cruise control will not set. Is there a ground or power wire I missed?
I'm very used to driving with my foot, but I'm in southern AZ, and the looooong straight stretches on I-10 and I-8 BEG for cruise control. |
I installed this unit in my '87 Syncro several years ago and it works ok.
This seemed to be an issue that the system disengaged when challenged (going uphill or into a strong headwind).
Now it seems it will not set at all? Am I missing something here, or did the situation go from troublesome to not working at all?
The disengagement may be normal. I've installed aftermarket cruise controls many times. When the actual speed departs too far from the setpoint the system detects this is an abnormal situation and disengages the cruise control.
Jim Davis
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| sphet wrote: |
| I have *no* idea what the previous owner carried in his Westy... angry donkeys? |
Last edited by SyncroHead on Fri Jan 28, 2022 10:26 am; edited 1 time in total |
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16CVs
Samba Member
Joined: February 22, 2004
Posts: 4026
Location: Redwood City, California
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| Posted: Fri Jan 28, 2022 10:21 am Post subject: Re: Rostra / GW Cruise control DIP Switch settings? |
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Does it make that huge Magnetic thunk when it quits working? I wonder if maybe it needs a better pickup signal?
Stacy
_________________
1987 Syncro Westfalia Triple knob (bastard)
1989 Syncro Tristar Triple knob "Swedish"
2013 Jetta Hybrid a true "Zwitter"
Samba member # 14980
Call anytime number 650 722 4914 .
Keep Your van running and upkept tastefully for the love of the hobby.
Don't let your van end up in an "abortions" thread. |
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Corwyn
Samba Member
Joined: December 29, 2009
Posts: 2238
Location: Olympia, Washington
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| Posted: Fri Jan 28, 2022 1:53 pm Post subject: Re: Rostra / GW Cruise control DIP Switch settings? |
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| VicVan wrote: |
Corwyn, you could also try to contact FAS directly.
Where is the unit mounted, and how is the cable routed? Do you have pictures? |
The unit is mounted under the back seat, on the firewall above the heater. Peace Vans did the install and they have tried to help, but . . . no joy. checked the fuses, the cable connection at the throttle linkage (automatic) and the brake lights work.
Anyway, I didn't mean to hijack the thread . . .
_________________
'90 White Westy ("The Longship")
FAS Gen V 2.0
The Annual Baja Rally
https://www.thesamba.com/vw/forum/viewtopic.php?t=604813&highlight=baja
"If anything's" gonna happen, it's gonna happen out there"
~ Captain Ron ~ |
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a2wolfsburggli
Samba Member
Joined: October 30, 2018
Posts: 279
Location: WI
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| Posted: Fri Jan 28, 2022 1:59 pm Post subject: Re: Rostra / GW Cruise control DIP Switch settings? |
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Page 19 shows the troubleshooting:
https://www.rostra.com/manuals/ultracruise-2_Form2784A.pdf
_________________
Current: '87 Westfalia | '16 Audi Q5 3.0T S-Line w/sport package.
Past: '09 CC 3.6L 4motion "R36 wannabe" | '02 Audi TT "ALMS Edition" | '84 Jetta GLI with Autotech Supercharger | '89 Helios Jetta GLI 16v's (x2) | '95.5 URS6 | and the list goes on.
Never underestimate the entertainment value of OCD overruling Common Sense |
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Corwyn
Samba Member
Joined: December 29, 2009
Posts: 2238
Location: Olympia, Washington
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a2wolfsburggli
Samba Member
Joined: October 30, 2018
Posts: 279
Location: WI
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| Posted: Fri Jan 28, 2022 2:17 pm Post subject: Re: Rostra / GW Cruise control DIP Switch settings? |
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| Corwyn wrote: |
You da bomb! Thanks!  |
there is a ton of info out there on these units in many different installs. Google is your friend.
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Current: '87 Westfalia | '16 Audi Q5 3.0T S-Line w/sport package.
Past: '09 CC 3.6L 4motion "R36 wannabe" | '02 Audi TT "ALMS Edition" | '84 Jetta GLI with Autotech Supercharger | '89 Helios Jetta GLI 16v's (x2) | '95.5 URS6 | and the list goes on.
Never underestimate the entertainment value of OCD overruling Common Sense |
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bajaleo
Samba Member
Joined: March 21, 2009
Posts: 211
Location: San Juan Capistrano, CA
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| Posted: Tue Jan 24, 2023 9:35 am Post subject: Re: Rostra / GW Cruise control DIP Switch settings? |
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a2, in your initial chart you have switch 10 (VSS Source) in the OFF position, but then later on in this thread it shows that it's in the ON position. Did your VSS Source change?
| a2wolfsburggli wrote: |
I got my Rostra cruise setup installed a little while ago. The VSS I got from FleaBay was DOA so I waited a month for GW to ship during the pandemic.
It's a standard Rostra kit, not the GW modified one. It's installed per GW basic instructions on location and throttle connection. 2.1L, 2wd, Manual.
Anyway. I started with the recommended settings that GW had on their instructions. That surged +3-5mph then feel off a cliff to -5mph and recovered.
I found this chart someone has posted a couple years ago and made an adjustment to the "old blue current," settings for gain and reaction. That's better but still not as smooth as I think it can be.
Here is a chart I made and my setting / notes including motor / tranny info.
I think I read somewhere (can't find it now,) that adjusting the VSS signals per mile can help the GW VSS?
Of those that have installed a Rostra, what is everyone else running and on what setups? |
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1984 Wolfie Westy, Subaru EJ22 powered. |
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