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Speedometer programming - Printable Version +- Wanderlodge Gurus - The Member Funded Wanderlodge Forum (http://www.wanderlodgegurus.com) +-- Forum: Yahoo Groups Archive (/forumdisplay.php?fid=61) +--- Forum: WanderlodgeForum (/forumdisplay.php?fid=63) +--- Thread: Speedometer programming (/showthread.php?tid=4244) |
Speedometer programming - Don Bradner - 02-04-2007 10:45 The speedometer on 90 PT40 reads roughly 15-20% high. Presumably racks up miles at a higher rate as well. The VMSpc speed reading appears to be just about dead on; I would like to improve the accuracy of the speedometer, and I wondered if anyone here has any info on the programming? On the back are 12 dip switches. 1-4 are labled "Ones" and 1, 2, 4, 8. 5-8 ae labled "Tens" and 10, 20, 40, 80. 9-12 are labeled "Filter." Only 2 and 4 are on (values 2 and 8). This is an obvious question for Bluebird tech support, but so far on other issues I'm batting .000 with them (meaning I have yet to talk to a human) so I thought I would ask on the forums first in case someone has previously received programming info. Don Bradner 90 PT40 "Blue Thunder" Speedometer programming - one_dusty_hoot - 02-04-2007 11:28 Don, I believe the dip swiches are set to a ratio that is the calculation diameters, circumferences, or teeth. For instance, if the pick up was from a toothed wheel hub, it may be the resultant ratio of distance, wheel circumference,and time. I have seen such calculations before but can't remember where except that it was from a gauge supplier, Telefex, Stewart Warner, etc. Check the Mfgr for instructions. Another possibility is the distance (gap)between the tooth and reluctance pick up but usually would count lower not higher, 15-20% is way off, may be the counting circuit in the speedo? Best I can do for what little I know. bob janes, 87fc35, greenville, sc --- In WanderlodgeForum@yahoogroups.com, "Don Bradner" wrote: > > The speedometer on 90 PT40 reads roughly 15-20% high. Presumably racks up miles at a higher rate as well. > > The VMSpc speed reading appears to be just about dead on; I would like to improve the accuracy of the speedometer, and I wondered if anyone here has any info on the programming? > > On the back are 12 dip switches. 1-4 are labled "Ones" and 1, 2, 4, 8. 5-8 ae labled "Tens" and 10, 20, 40, 80. 9-12 are labeled "Filter." > > Only 2 and 4 are on (values 2 and 8). > > This is an obvious question for Bluebird tech support, but so far on other issues I'm batting .000 with them (meaning I have yet to talk to a human) so I thought I would ask on the forums first in case someone has previously received programming info. > > Don Bradner > 90 PT40 "Blue Thunder" > Speedometer programming - Don Bradner - 02-04-2007 11:41 I'm guessing that it gets a lot more complicated than specific ratios, and it is necessary to have the specific settings. The engine/transmission are both electronic, and putting out digital data. There is a separate box containing a circuit board, attached to the "Cal" hole in the back of the Speedo, and the dip switch settings have to match what the Cal module is providing. I'm hoping someone here has had occasion to obtain the settings for a circa '90 8V92/HT755 combo, so that I could try something different. 256 possible combinations for those 8 switches... On 2/4/2007 at 11:28 PM one_dusty_hoot wrote: >Don, I believe the dip swiches are set to a ratio that >is the calculation diameters, circumferences, or teeth. Don Bradner 90 PT40 "Blue Thunder" Speedometer programming - Gregory OConnor - 02-04-2007 12:51 I dont think the dips are adjustable to do a fine tune???? You may be able to find settings that will fool the speedo to read closer to actual but factory set for components installed. I think Bob has a good point that there must be a input fault if the dip setting you now have proves to be factory correct????? GregoryO'Connor 94ptRomolandCa --- In WanderlodgeForum@yahoogroups.com, "Don Bradner" wrote: > > I'm guessing that it gets a lot more complicated than specific ratios, and it is necessary to have the specific settings. The engine/transmission are both electronic, and putting out digital data. There is a separate box containing a circuit board, attached to the "Cal" hole in the back of the Speedo, and the dip switch settings have to match what the Cal module is providing. I'm hoping someone here has had occasion to obtain the settings for a circa '90 8V92/HT755 combo, so that I could try something different. 256 possible combinations for those 8 switches... > > On 2/4/2007 at 11:28 PM one_dusty_hoot wrote: > > >Don, I believe the dip swiches are set to a ratio that > >is the calculation diameters, circumferences, or teeth. > > Don Bradner > 90 PT40 "Blue Thunder" > Speedometer programming - Pete Masterson - 02-04-2007 13:11 I've had auto speedometers that were rather off ... a speedometer shop was able to make a quick fix for not a lot of $$. You might look for one that can handle a bus... Based on those radar-speed signs, the speedo on my coach seems to be reasonably accurate. With 256 possible settings, you will be kept busy for some time to come... Pete Masterson aeonix1@... '95 Blue Bird Wanderlodge WBDA 42' El Sobrante, CA On Feb 4, 2007, at 4:51 PM, Gregory OConnor wrote: > I dont think the dips are adjustable to do a fine tune???? You may be > able to find settings that will fool the speedo to read closer to > actual but factory set for components installed. I think Bob has a > good point that there must be a input fault if the dip setting you > now have proves to be factory correct????? > GregoryO'Connor > 94ptRomolandCa > > --- In WanderlodgeForum@yahoogroups.com, "Don Bradner" > wrote: >> >> I'm guessing that it gets a lot more complicated than specific > ratios, and it is necessary to have the specific settings. The > engine/transmission are both electronic, and putting out digital > data. There is a separate box containing a circuit board, attached to > the "Cal" hole in the back of the Speedo, and the dip switch settings > have to match what the Cal module is providing. I'm hoping someone > here has had occasion to obtain the settings for a circa '90 > 8V92/HT755 combo, so that I could try something different. 256 > possible combinations for those 8 switches... >> >> On 2/4/2007 at 11:28 PM one_dusty_hoot wrote: >> >>> Don, I believe the dip swiches are set to a ratio that >>> is the calculation diameters, circumferences, or teeth. >> >> Don Bradner >> 90 PT40 "Blue Thunder" >> [Non-text portions of this message have been removed] Speedometer programming - Leroy Eckert - 02-04-2007 13:18 I haven't noticed the variance on mine. I have checked it with those roadside radar detectors that are every 20 miles down here, if you can believe those, and it appears to be very close. It will be interesting to see the speed on my VMSpc when I get it going. If you want I will look and see how my switches are set. Otherwise, I am no help. Leroy Eckert 1990 WB-40"Smoke N Mirrors" Niceville, FL ----- Original Message ----- From: Don Bradner To: wanderlodgeforum@yahoogroups.com Sent: Sunday, February 04, 2007 4:45 PM Subject: [WanderlodgeForum] Speedometer programming The speedometer on 90 PT40 reads roughly 15-20% high. Presumably racks up miles at a higher rate as well. The VMSpc speed reading appears to be just about dead on; I would like to improve the accuracy of the speedometer, and I wondered if anyone here has any info on the programming? On the back are 12 dip switches. 1-4 are labled "Ones" and 1, 2, 4, 8. 5-8 ae labled "Tens" and 10, 20, 40, 80. 9-12 are labeled "Filter." Only 2 and 4 are on (values 2 and 8). This is an obvious question for Bluebird tech support, but so far on other issues I'm batting .000 with them (meaning I have yet to talk to a human) so I thought I would ask on the forums first in case someone has previously received programming info. Don Bradner 90 PT40 "Blue Thunder" [Non-text portions of this message have been removed] Speedometer programming - Don Bradner - 02-04-2007 16:51 It would be great if you could take a look - it is likely that ours should be the same. When I drove it out of Phoenix last month I knew it didn't feel right for the indicated speed, so I set it at 60 on the cruise and used the stopwatch to time a mile, then several more miles (using the ubiquitous mile markers on I-10). I was running above 70 seconds per mile, and the truck traffic was blowing around me. When I drove yesterday with VMSpc running, it was showing 35 when the speedometer was above 45. On 2/4/2007 at 7:18 PM Leroy Eckert wrote: >I haven't noticed the variance on mine. I have checked it with those >roadside radar detectors that are every 20 miles down here, if you can >believe those, and it appears to be very close. It will be interesting to >see the speed on my VMSpc when I get it going. > >If you want I will look and see how my switches are set. Otherwise, I am >no help. Don Bradner http://www.arcatapet.net Speedometer programming - Leroy Eckert - 02-05-2007 01:39 Give me a couple days and I will do that. Leroy Eckert 1990 WB-40"Smoke N Mirrors" Niceville, FL ----- Original Message ----- From: Don Bradner To: WanderlodgeForum@yahoogroups.com Sent: Sunday, February 04, 2007 10:51 PM Subject: Re: [WanderlodgeForum] Speedometer programming It would be great if you could take a look - it is likely that ours should be the same. When I drove it out of Phoenix last month I knew it didn't feel right for the indicated speed, so I set it at 60 on the cruise and used the stopwatch to time a mile, then several more miles (using the ubiquitous mile markers on I-10). I was running above 70 seconds per mile, and the truck traffic was blowing around me. When I drove yesterday with VMSpc running, it was showing 35 when the speedometer was above 45. On 2/4/2007 at 7:18 PM Leroy Eckert wrote: >I haven't noticed the variance on mine. I have checked it with those >roadside radar detectors that are every 20 miles down here, if you can >believe those, and it appears to be very close. It will be interesting to >see the speed on my VMSpc when I get it going. > >If you want I will look and see how my switches are set. Otherwise, I am >no help. Don Bradner http://www.arcatapet.net [Non-text portions of this message have been removed] Speedometer programming - Lawrence Thornell - 02-05-2007 05:58 Contact the mfg of the speedo for a correction formula to reset the dips. A rather easy fix. LT 90 SP in Eclectic, AL ----- Original Message ----- From: "Gregory OConnor" To: Sent: Sunday, February 04, 2007 6:51 PM Subject: [WanderlodgeForum] Re: Speedometer programming >I dont think the dips are adjustable to do a fine tune???? You may be > able to find settings that will fool the speedo to read closer to > actual but factory set for components installed. I think Bob has a > good point that there must be a input fault if the dip setting you > now have proves to be factory correct????? > GregoryO'Connor > 94ptRomolandCa > > --- In WanderlodgeForum@yahoogroups.com, "Don Bradner" > wrote: >> >> I'm guessing that it gets a lot more complicated than specific > ratios, and it is necessary to have the specific settings. The > engine/transmission are both electronic, and putting out digital > data. There is a separate box containing a circuit board, attached to > the "Cal" hole in the back of the Speedo, and the dip switch settings > have to match what the Cal module is providing. I'm hoping someone > here has had occasion to obtain the settings for a circa '90 > 8V92/HT755 combo, so that I could try something different. 256 > possible combinations for those 8 switches... >> >> On 2/4/2007 at 11:28 PM one_dusty_hoot wrote: >> >> >Don, I believe the dip swiches are set to a ratio that >> >is the calculation diameters, circumferences, or teeth. >> >> Don Bradner >> 90 PT40 "Blue Thunder" >> > > > > > > Yahoo! Groups Links > > > Speedometer programming - Leroy Eckert - 02-05-2007 10:31 Don: My dip switches are 2, 3, and 6 on. Leroy Eckert 1990 WB-40"Smoke N Mirrors" Niceville, FL ----- Original Message ----- From: Don Bradner To: WanderlodgeForum@yahoogroups.com Sent: Sunday, February 04, 2007 10:51 PM Subject: Re: [WanderlodgeForum] Speedometer programming It would be great if you could take a look - it is likely that ours should be the same. When I drove it out of Phoenix last month I knew it didn't feel right for the indicated speed, so I set it at 60 on the cruise and used the stopwatch to time a mile, then several more miles (using the ubiquitous mile markers on I-10). I was running above 70 seconds per mile, and the truck traffic was blowing around me. When I drove yesterday with VMSpc running, it was showing 35 when the speedometer was above 45. On 2/4/2007 at 7:18 PM Leroy Eckert wrote: >I haven't noticed the variance on mine. I have checked it with those >roadside radar detectors that are every 20 miles down here, if you can >believe those, and it appears to be very close. It will be interesting to >see the speed on my VMSpc when I get it going. > >If you want I will look and see how my switches are set. Otherwise, I am >no help. Don Bradner http://www.arcatapet.net [Non-text portions of this message have been removed] |