speedo 85 or 120
speedo 85 or 120
09-16-2010, 11:29 PM
#2
1982 300D Turbo ... 3,6xxlbs, No fan, No AC, Hood Stack, No ALDA, No rear bumper and stuffed front, A/W Intercooled, Injectors by Greezer and HUGE Pre-Chambers with help from OM616 & Simpler=Better, Fuel Cranked up, 60 Trim Compressor wheel, EGT, EMP, Boost 50" Rigid Radius bar on roof Aux tank for a total of 48 Gal Of Diesel! Odyssey PC-1750 Battery in trunk, 27"x8.5"/R14 Maxxis BigHorn Mud Terrains, In June '14 issue of Off Road Mag
AX15 Jeep Trans swap in progress....
Captain America
09-16-2010, 11:29 PM #2I think it's the year. Mine is the same as yours... Wish I had the 120 speedo (with the right calibration for my tires).
1982 300D Turbo ... 3,6xxlbs, No fan, No AC, Hood Stack, No ALDA, No rear bumper and stuffed front, A/W Intercooled, Injectors by Greezer and HUGE Pre-Chambers with help from OM616 & Simpler=Better, Fuel Cranked up, 60 Trim Compressor wheel, EGT, EMP, Boost 50" Rigid Radius bar on roof Aux tank for a total of 48 Gal Of Diesel! Odyssey PC-1750 Battery in trunk, 27"x8.5"/R14 Maxxis BigHorn Mud Terrains, In June '14 issue of Off Road Mag
AX15 Jeep Trans swap in progress....
09-16-2010, 11:51 PM
#3
With the 85mph it moves so quickly when you are getting on it lol
1987 300SDL 6spd manual om606.962 swap project
1985 300td euro 5spd wagon running
willbhere4u
09-16-2010, 11:51 PM #3I put the 120mph in my 1982 300cd it was of by like 5mph but it felt a lot slower at least the needle moves slower
With the 85mph it moves so quickly when you are getting on it lol
1987 300SDL 6spd manual om606.962 swap project
1985 300td euro 5spd wagon running
09-17-2010, 01:08 AM
#4
1982 300D Turbo ... 3,6xxlbs, No fan, No AC, Hood Stack, No ALDA, No rear bumper and stuffed front, A/W Intercooled, Injectors by Greezer and HUGE Pre-Chambers with help from OM616 & Simpler=Better, Fuel Cranked up, 60 Trim Compressor wheel, EGT, EMP, Boost 50" Rigid Radius bar on roof Aux tank for a total of 48 Gal Of Diesel! Odyssey PC-1750 Battery in trunk, 27"x8.5"/R14 Maxxis BigHorn Mud Terrains, In June '14 issue of Off Road Mag
AX15 Jeep Trans swap in progress....
Captain America
09-17-2010, 01:08 AM #4So it would be a straight swap then?
1982 300D Turbo ... 3,6xxlbs, No fan, No AC, Hood Stack, No ALDA, No rear bumper and stuffed front, A/W Intercooled, Injectors by Greezer and HUGE Pre-Chambers with help from OM616 & Simpler=Better, Fuel Cranked up, 60 Trim Compressor wheel, EGT, EMP, Boost 50" Rigid Radius bar on roof Aux tank for a total of 48 Gal Of Diesel! Odyssey PC-1750 Battery in trunk, 27"x8.5"/R14 Maxxis BigHorn Mud Terrains, In June '14 issue of Off Road Mag
AX15 Jeep Trans swap in progress....
09-17-2010, 12:06 PM
#5
(09-16-2010, 10:33 PM)larsalan What is the significance of the different top speeds?
My 300d turbo is 85 mph top but I have seen others that are 120mph.
is it the year or what?
There are no differences between the performance of the turbo models with the different speedometers.
In late 1979 the Federal lawmakers decided that the speedometers should have a maximin speed of 85 mph for efficiency and safety reasons. Then in late '81 the law was lifted because they found it to unlikely to provide any benefits. For an upgrade to a 120 mph speedo, you will need one off a car with a 3.07 differential - 1983 and 1984 model years only.
.
(09-16-2010, 11:29 PM)Captain America I think it's the year. Mine is the same as yours... Wish I had the 120 speedo (with the right calibration for my tires).
I would try to see if the speedometer off your '85 parts car would be close accurate with the tires you have. The '85 speedometers are calibrated for a 2.88 ratio differential.
This post was last modified: 09-17-2010, 12:10 PM by DeliveryValve.
Gota love Mercedes Diesels!
.
DeliveryValve
09-17-2010, 12:06 PM #5(09-16-2010, 10:33 PM)larsalan What is the significance of the different top speeds?
My 300d turbo is 85 mph top but I have seen others that are 120mph.
is it the year or what?
There are no differences between the performance of the turbo models with the different speedometers.
In late 1979 the Federal lawmakers decided that the speedometers should have a maximin speed of 85 mph for efficiency and safety reasons. Then in late '81 the law was lifted because they found it to unlikely to provide any benefits. For an upgrade to a 120 mph speedo, you will need one off a car with a 3.07 differential - 1983 and 1984 model years only.
.
(09-16-2010, 11:29 PM)Captain America I think it's the year. Mine is the same as yours... Wish I had the 120 speedo (with the right calibration for my tires).
I would try to see if the speedometer off your '85 parts car would be close accurate with the tires you have. The '85 speedometers are calibrated for a 2.88 ratio differential.
Gota love Mercedes Diesels!
.
09-17-2010, 02:45 PM
#6
(09-17-2010, 12:06 PM)DeliveryValve(09-16-2010, 10:33 PM)larsalan What is the significance of the different top speeds?
My 300d turbo is 85 mph top but I have seen others that are 120mph.
is it the year or what?
There are no differences between the performance of the turbo models with the different speedometers.
In late 1979 the Federal lawmakers decided that the speedometers should have a maximin speed of 85 mph for efficiency and safety reasons. Then in late '81 the law was lifted because they found it to unlikely to provide any benefits. For an upgrade to a 120 mph speedo, you will need one off a car with a 3.07 differential - 1983 and 1984 model years only.
.
(09-16-2010, 11:29 PM)Captain America I think it's the year. Mine is the same as yours... Wish I had the 120 speedo (with the right calibration for my tires).
I would try to see if the speedometer off your '85 parts car would be close accurate with the tires you have. The '85 speedometers are calibrated for a 2.88 ratio differential.
Your the fuckin man! I never even thought of that... looks like it will work perfect. I think I applied this right, just had to put the numbers in backwards...
1982 300D Turbo ... 3,6xxlbs, No fan, No AC, Hood Stack, No ALDA, No rear bumper and stuffed front, A/W Intercooled, Injectors by Greezer and HUGE Pre-Chambers with help from OM616 & Simpler=Better, Fuel Cranked up, 60 Trim Compressor wheel, EGT, EMP, Boost 50" Rigid Radius bar on roof Aux tank for a total of 48 Gal Of Diesel! Odyssey PC-1750 Battery in trunk, 27"x8.5"/R14 Maxxis BigHorn Mud Terrains, In June '14 issue of Off Road Mag
AX15 Jeep Trans swap in progress....
Captain America
09-17-2010, 02:45 PM #6(09-17-2010, 12:06 PM)DeliveryValve(09-16-2010, 10:33 PM)larsalan What is the significance of the different top speeds?
My 300d turbo is 85 mph top but I have seen others that are 120mph.
is it the year or what?
There are no differences between the performance of the turbo models with the different speedometers.
In late 1979 the Federal lawmakers decided that the speedometers should have a maximin speed of 85 mph for efficiency and safety reasons. Then in late '81 the law was lifted because they found it to unlikely to provide any benefits. For an upgrade to a 120 mph speedo, you will need one off a car with a 3.07 differential - 1983 and 1984 model years only.
.
(09-16-2010, 11:29 PM)Captain America I think it's the year. Mine is the same as yours... Wish I had the 120 speedo (with the right calibration for my tires).
I would try to see if the speedometer off your '85 parts car would be close accurate with the tires you have. The '85 speedometers are calibrated for a 2.88 ratio differential.
Your the fuckin man! I never even thought of that... looks like it will work perfect. I think I applied this right, just had to put the numbers in backwards...
1982 300D Turbo ... 3,6xxlbs, No fan, No AC, Hood Stack, No ALDA, No rear bumper and stuffed front, A/W Intercooled, Injectors by Greezer and HUGE Pre-Chambers with help from OM616 & Simpler=Better, Fuel Cranked up, 60 Trim Compressor wheel, EGT, EMP, Boost 50" Rigid Radius bar on roof Aux tank for a total of 48 Gal Of Diesel! Odyssey PC-1750 Battery in trunk, 27"x8.5"/R14 Maxxis BigHorn Mud Terrains, In June '14 issue of Off Road Mag
AX15 Jeep Trans swap in progress....
09-17-2010, 08:51 PM
#7
(09-17-2010, 12:06 PM)DeliveryValve In late 1979 the Federal lawmakers decided that the speedometers should have a maximin speed of 85 mph for efficiency and safety reasons. Then in late '81 the law was lifted because they found it to unlikely to provide any benefits.
My 1979 240D has a 100mph speedo.
1987 300D: EGR Delete, ARV Delete, Cold Air Intake...
(09-17-2010, 12:06 PM)DeliveryValve In late 1979 the Federal lawmakers decided that the speedometers should have a maximin speed of 85 mph for efficiency and safety reasons. Then in late '81 the law was lifted because they found it to unlikely to provide any benefits.
My 1979 240D has a 100mph speedo.
1987 300D: EGR Delete, ARV Delete, Cold Air Intake...
09-17-2010, 08:57 PM
#8
(09-17-2010, 08:51 PM)garage(09-17-2010, 12:06 PM)DeliveryValve In late 1979 the Federal lawmakers decided that the speedometers should have a maximin speed of 85 mph for efficiency and safety reasons. Then in late '81 the law was lifted because they found it to unlikely to provide any benefits.
My 1979 240D has a 100mph speedo.
Yes model year 1980 enacted the change, too late for '79 model year and again too late for the upcoming 1982 model year to make the change in late '81.
Gota love Mercedes Diesels!
.
DeliveryValve
09-17-2010, 08:57 PM #8(09-17-2010, 08:51 PM)garage(09-17-2010, 12:06 PM)DeliveryValve In late 1979 the Federal lawmakers decided that the speedometers should have a maximin speed of 85 mph for efficiency and safety reasons. Then in late '81 the law was lifted because they found it to unlikely to provide any benefits.
My 1979 240D has a 100mph speedo.
Yes model year 1980 enacted the change, too late for '79 model year and again too late for the upcoming 1982 model year to make the change in late '81.
Gota love Mercedes Diesels!
.
09-20-2010, 08:56 PM
#11
This post was last modified: 09-20-2010, 09:02 PM by Rudolf_Diesel.
1982 300SD: 304,xxx Super M-pump with 7.5mm elements, 265 Nozzles, GT35 water cooled turbo, M90 Supercharger, A/W Intercooler, Serpentine drive belt, 3" SS exhaust with Magnaflow muffler, 240 breather, AEM dry Filter, Manual Boost Control, EGT / Boost / EMP gauges....Moved on to other projects
1995 F-350 7.3L PSD: 230,xxx 6.0 IC, DIY Stage 1 Injectors, 17* hpop, Tony Wildman Chip, John Wood Trans, 6.4L TC, 3" down pipe, 4" straight exhaust, 310 HP on wheel dyno - 8500# dually: 0-60 in 6.98
Suzuki Samurai: VW 1.9L TD, Trackick doubler transfer case (made by me) 5.8:1 transfer case gears, YJ springs front and rear with rear missing links, wheel base extended 14", diffs welded, some day a VNT.
Rudolf_Diesel
09-20-2010, 08:56 PM #11My speedo was originally an 85 MPH, I got a 120 and replaced the gears and rolled it forward to match the 85 MPH odometer. I think it works fine since it is an electric speedo, those "Your Speed is XX" signs seem to be right on with my speedo, it might be off by a negligible amount. It also has a flat, velvety finish vs. the original satin finish. The tach wouldn't work from the new cluster so I had to use the old one.
1982 300SD: 304,xxx Super M-pump with 7.5mm elements, 265 Nozzles, GT35 water cooled turbo, M90 Supercharger, A/W Intercooler, Serpentine drive belt, 3" SS exhaust with Magnaflow muffler, 240 breather, AEM dry Filter, Manual Boost Control, EGT / Boost / EMP gauges....Moved on to other projects
1995 F-350 7.3L PSD: 230,xxx 6.0 IC, DIY Stage 1 Injectors, 17* hpop, Tony Wildman Chip, John Wood Trans, 6.4L TC, 3" down pipe, 4" straight exhaust, 310 HP on wheel dyno - 8500# dually: 0-60 in 6.98
Suzuki Samurai: VW 1.9L TD, Trackick doubler transfer case (made by me) 5.8:1 transfer case gears, YJ springs front and rear with rear missing links, wheel base extended 14", diffs welded, some day a VNT.
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