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buguy Samba Member
Joined: November 17, 2003 Posts: 4915 Location: Port Orange, FL
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Posted: Thu Jul 20, 2017 5:49 pm Post subject: AFR gauge |
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So I am going to pick up a PLX wideband and they have an option for a gauge or to have it Bluetooth on the phone. I like the idea of Bluetooth but I was wondering if it is necessary to continue watching the AFR once things are all set and looking good? I could easily add a gauge pod somewhere but I don't want to cut up my dash. I would prefer not having a gauge of its not necessary to watch all the time. I'm a homebrew draw through turbo by the way. |
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woodoctr Samba Member
Joined: June 01, 2013 Posts: 254 Location: Ohio
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Posted: Thu Jul 20, 2017 8:57 pm Post subject: Re: AFR gauge |
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Yeah, I could have set up my kit car with the Bluetooth thing as well but opted for the gauge. It's not like I watch it all the time ( I do have an on/off switch on the gauge) but I do like to tune seasonally. I've got quick change bowls on my Holley 670 Street Avenger so tuning is pretty easy with my supercharged rotary. |
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madmike Samba Member
Joined: July 11, 2005 Posts: 5291 Location: Atlanta,Michigan
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Posted: Fri Jul 21, 2017 3:17 am Post subject: Re: AFR gauge |
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I watch that gauge more then the 'Tach'
hint ;Hide it in the glove box, _________________ 'Black Ice'Drag Buggy 'Turbo'
Rail Buggy 1915 turbo
76 Drag/Street bug 2180cc 'Turbo' 11:85 @113 mph"If I go any faster I'll burn up the Hamster" ,gets 28 mpg. also 10/09/22 11.90 @115 mph
"If I'm ever on Life Support,UNPLUG Me, Then Plug me back In see if that Works" |
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tattooed_pariah Samba Member
Joined: April 24, 2006 Posts: 2047 Location: El Cajon, CA
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Posted: Fri Jul 21, 2017 4:35 am Post subject: Re: AFR gauge |
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I'm looking at buying the gen-4 kit with gauge whenever I find $170 of disposable cash too.. looking at reviews, it seems people are having trouble mounting the gauge. that it doesn't come with a way to secure to a dash and they are forced to use the included bracket..
In my mind, put the gauge in place, and put a worm clamp on the back to hold it in, but maybe that's not possible or just didn't occur to these people..
if you get the gauge, let us know how you mount it! _________________ -pariah (just a novice from "that other VW site")
'72 Volksrod "Effigy"
"Never worry about stepping on people's toes. People who get their toes stepped on are either sitting down, or standing still on the job."
-Admiral Arleigh Burke, USN(ret.) |
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Paul.H Samba Member
Joined: April 03, 2015 Posts: 613 Location: England
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Posted: Fri Jul 21, 2017 5:22 am Post subject: Re: AFR gauge |
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PLX have other modules such as EGT and oil temp that can be daisy chained into the the system and display the data on a single gauge. You could epoxy some sort of brackets to the gauge for dash mounting |
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buguy Samba Member
Joined: November 17, 2003 Posts: 4915 Location: Port Orange, FL
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Posted: Fri Jul 21, 2017 5:31 am Post subject: Re: AFR gauge |
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Yeah I'm not worried about mounting it. But do you really need to be seeing that stuff all the time? |
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mikedjames Samba Member
Joined: July 02, 2012 Posts: 2714 Location: Hamble, Hampshire, UK
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Posted: Fri Jul 21, 2017 5:48 am Post subject: Re: AFR gauge |
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I have ended up with my own versions of these gauges as I built a rev counter,CHT, oil pressure, battery voltages and MAP sender to go with the PLX AFR sender..
I fried the gauge as it feeds low voltages to the dash and I had a short between 12 volts and the gauge wiring.
When I reset the routing on my new server PC , I can post the source code of what I did. _________________ Ancient vehicles and vessels
1974 VW T2 : Devon Eurovette camper with 1641 DP T1 engine, Progressive carb, full flow oil cooler, EDIS crank timed ignition.
Engine 1: 40k miles (rocker shaft clip fell off), Engine 2: 30k miles (rebuild, dropped valve). Engine 3: a JK Preservation Parts "new" engine, aluminium case: 26k miles: new top end.
Gearbox rebuild 2021 by Bears.
1979 Westerly GK24 24 foot racer/cruiser yacht Forethought of Gosport.
1973 wooden Pacer sailing dinghy |
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tattooed_pariah Samba Member
Joined: April 24, 2006 Posts: 2047 Location: El Cajon, CA
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Posted: Fri Jul 21, 2017 6:11 am Post subject: Re: AFR gauge |
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buguy wrote: |
Yeah I'm not worried about mounting it. But do you really need to be seeing that stuff all the time? |
I mounted my working tach to the driver's door near the vent window, and I have a non working tach in the panel to the left of the speedo.. it's visible but not without looking around/through the steering so it won't bother me much.. _________________ -pariah (just a novice from "that other VW site")
'72 Volksrod "Effigy"
"Never worry about stepping on people's toes. People who get their toes stepped on are either sitting down, or standing still on the job."
-Admiral Arleigh Burke, USN(ret.) |
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Tbirdusa Samba Member
Joined: November 29, 2006 Posts: 1460 Location: Kansas City, MO
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Posted: Fri Jul 21, 2017 6:39 am Post subject: Re: AFR gauge |
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I have the DM6 mounted on the tunnel just in front of my shifter. I bought a $10 plastic gauge mount pod. The dm6 comes with a rubber gasket that friction fits it into the pod.
I daisy chained oil pressure and wide band. I leave it on oil pressure for the most part but can toggle to afr if wanted but data logging is what I typically look at for afr. _________________ Royals 2015 World Champions
Chiefs 2017 Superbowl winner
1986 Falco records Rock Me Amadeus! |
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KTPhil Samba Member
Joined: April 06, 2006 Posts: 33875 Location: Conejo Valley, CA
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Posted: Fri Jul 21, 2017 9:07 am Post subject: Re: AFR gauge |
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I used a wired Innovate LM-2 setup on my Fastback. It is connectorized at the gauge and at the O2 sensor, so I left the wiring from the engine to the dash area in place. When calibrating, I just used a suction mount on the dash and plugged in. At the back I have a replacement resonator with the bung for the sensor. With one clamp and one bolt, and I can swap my "plain" resonator for my "test" resonator, and not have to leave my O2 sensor in the system.
I figure I will adjust the FI infrequently, so I didn't feel the need for the gauge while driving normally. |
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buguy Samba Member
Joined: November 17, 2003 Posts: 4915 Location: Port Orange, FL
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Posted: Fri Jul 21, 2017 9:23 am Post subject: Re: AFR gauge |
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I have my boost gauge mounted to the left of my steering wheel behind the grill there. You can't see it well, but i was having trouble making boost initially so I wanted some conformation.
I will likely also pull my sensor out for most driving. The way I'm set up I don't think it would live a happy life hanging out there.
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DUELLER Samba Member
Joined: July 06, 2008 Posts: 115 Location: salem, or
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Posted: Fri Jul 21, 2017 4:53 pm Post subject: Re: AFR gauge |
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I got the PLX-DM6 with the gauge and blue tooth. The reason i got the blue tooth was i could use it on either of my VW's or tune other peoples cars without extra wires. It's pretty easy to swap back and forth. The only bad thing so far is if you want to daisy chain EGT(head temp) it wont show on the blue tooth, only the gauge. The app on my phone only shows AFR and vac/boost. You would think you could toggle back and forth. |
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DUELLER Samba Member
Joined: July 06, 2008 Posts: 115 Location: salem, or
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Posted: Fri Jul 21, 2017 4:59 pm Post subject: Re: AFR gauge |
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Another thing...I have not compared accuracy between the two. The blue tooth is Fast!! as far as the readings are concerned. I saw a video where they showed a Tach as well but when i called them on it they said it was just a promo. |
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buguy Samba Member
Joined: November 17, 2003 Posts: 4915 Location: Port Orange, FL
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Posted: Fri Jul 21, 2017 5:39 pm Post subject: Re: AFR gauge |
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Oh thanks. I wasn't aware that the Bluetooth would only show AFR and boost. I have no plans to daisy chain but I don't know that I would want to eliminate the option. |
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tattooed_pariah Samba Member
Joined: April 24, 2006 Posts: 2047 Location: El Cajon, CA
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Posted: Sun Sep 03, 2017 10:15 am Post subject: Re: AFR gauge |
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we sold our rental property in california recently which opened up some funds for me to buy some shit
I got my plx gauge, but I'm wondering what you all did to run the wires? I have an A-1 4-1 header, with bung built in just before the muffler, I'm thinking of putting in the o2 sensor and ziptieing the wires by the passenger-side valve cover to run through the passenger-side heater channel into the passenger compartment.. This doesn't seem ideal at all, but i'm not sure how to keep it away from road debris and engine heat.. _________________ -pariah (just a novice from "that other VW site")
'72 Volksrod "Effigy"
"Never worry about stepping on people's toes. People who get their toes stepped on are either sitting down, or standing still on the job."
-Admiral Arleigh Burke, USN(ret.) |
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67rustavenger Samba Member
Joined: February 24, 2015 Posts: 9663 Location: Oregon
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Posted: Sun Sep 03, 2017 11:04 am Post subject: Re: AFR gauge |
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I use cable routing clamps fastened to the sled tin mount at the engine.
No the cable is not touching the header. It's just the angle of the pic.
Good Luck. _________________ I have learned over the years.
Cheap parts are gonna disappoint you.
Buy Once, Cry Once!
There's never enough time to do it right the first time. But there's always enough time to do it thrice.
GFY's Xevin and VW_Jimbo! |
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mikedjames Samba Member
Joined: July 02, 2012 Posts: 2714 Location: Hamble, Hampshire, UK
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Posted: Sun Sep 03, 2017 11:50 am Post subject: Re: AFR gauge |
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I mounted mine at the top of the collector ,pointing down, with a similar exhaust setup on my bus and took the cable straight up behind the tinware.
I took note of the requirement to never run the risk of exhaust condensation on the lambda sensor.
It will shatter while heated to 600C/ 1100F with a drop of water so mounting it facing down seemed safest.
Featuring Real Horrible Stainless Blob Welding. _________________ Ancient vehicles and vessels
1974 VW T2 : Devon Eurovette camper with 1641 DP T1 engine, Progressive carb, full flow oil cooler, EDIS crank timed ignition.
Engine 1: 40k miles (rocker shaft clip fell off), Engine 2: 30k miles (rebuild, dropped valve). Engine 3: a JK Preservation Parts "new" engine, aluminium case: 26k miles: new top end.
Gearbox rebuild 2021 by Bears.
1979 Westerly GK24 24 foot racer/cruiser yacht Forethought of Gosport.
1973 wooden Pacer sailing dinghy
Last edited by mikedjames on Sun Sep 03, 2017 12:06 pm; edited 2 times in total |
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67rustavenger Samba Member
Joined: February 24, 2015 Posts: 9663 Location: Oregon
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Posted: Sun Sep 03, 2017 11:59 am Post subject: Re: AFR gauge |
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The installation instructions said to install the bung above 9-3 oclock. That way any condensation would collect at the bottom of the header.
Mines at the 2:45 position. _________________ I have learned over the years.
Cheap parts are gonna disappoint you.
Buy Once, Cry Once!
There's never enough time to do it right the first time. But there's always enough time to do it thrice.
GFY's Xevin and VW_Jimbo! |
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KTPhil Samba Member
Joined: April 06, 2006 Posts: 33875 Location: Conejo Valley, CA
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Posted: Sun Sep 03, 2017 1:03 pm Post subject: Re: AFR gauge |
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67rustavenger wrote: |
The installation instructions said to install the bung above 9-3 oclock. That way any condensation would collect at the bottom of the header.
Mines at the 2:45 position. |
Is that Standard or Daylight Savings time? |
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67rustavenger Samba Member
Joined: February 24, 2015 Posts: 9663 Location: Oregon
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Posted: Sun Sep 03, 2017 1:41 pm Post subject: Re: AFR gauge |
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KTPhil wrote: |
67rustavenger wrote: |
The installation instructions said to install the bung above 9-3 oclock. That way any condensation would collect at the bottom of the header.
Mines at the 2:45 position. |
Is that Standard or Daylight Savings time? |
I think the bigger question is. Would that be viewed from the front or the back of the car? _________________ I have learned over the years.
Cheap parts are gonna disappoint you.
Buy Once, Cry Once!
There's never enough time to do it right the first time. But there's always enough time to do it thrice.
GFY's Xevin and VW_Jimbo! |
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