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  #16  
Old 11-20-2004, 12:20 AM
Brandon314159
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Quote:
Originally Posted by Smooooth
Cool - WA2FDU here...........
Just installed the radio in the 300SDL last weekend.

Stephen
Hey!
I pulled my ash tray assembly out
it actually turns out
the connector that hooks to the ash tray is the same (close enough) to the connector on an icon-207H mobile radio! I just swapped the wires (get the polarity right) and hoooked it up. No eletrical noise either. Looks good too...I'll have to put up a picture for you

Where did you put your anntena/what type of mount is it?
The trunk lids are aluminium!!!
My antenna is in the trunk at the moment mounted upside down behind the gas tank
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  #17  
Old 11-20-2004, 12:28 AM
dieseldiehard's Avatar
Dieseldiehard
 
Join Date: Oct 2002
Location: Bay Area No Calif.
Posts: 3,983
Brandon314159, what has ham radio got to do with a speed run?
A 300SD won't do 135. If it will it ain't stock!
NO Way did your 300SD do 135

I just had my '87 300D W124 up to 105 last weekend
It was still begging for more. Just a little more maybe but it wasn't out of headroom yet. Of course we are talking a W124 with great aerodynamics and a lighter body that an SD and a different ratio differential (also 6 cylinders) it's rated to 115 MPH but still it has a 2.996 liter engine.
There was a post by someone on the 'Forum that had a picture of a speedometer at 115 MPH I believe it was in So. Cal, a W124 diesel I think.
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  #18  
Old 11-20-2004, 12:31 AM
Brandon314159
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Yeah I have no speed reading above 85...I have the "you should not go this fast" speedometer of the 80's...and to some degree it works..but I don't frequrenly drive above that speed anyway. besides its all by feel after that anyway.
if the 135 is true...it was downhill...and I wasn't comfortable with it one bit...
it was fast enough the car was getting a tad more twitchy than I wanted
its the same hill I can only go 75 up...pretty steep.

I will bring back some numbers tonight after we go out and drive around a bit.
I don't expect any speed like that though...I don't like that hill...the police like it too much!
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  #19  
Old 11-20-2004, 01:19 AM
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Join Date: May 2003
Posts: 2,218
Quote:
Originally Posted by dieseldiehard
Brandon314159, what has ham radio got to do with a speed run?
A 300SD won't do 135. If it will it ain't stock!
NO Way did your 300SD do 135

I just had my '87 300D W124 up to 105 last weekend
It was still begging for more. Just a little more maybe but it wasn't out of headroom yet. Of course we are talking a W124 with great aerodynamics and a lighter body that an SD and a different ratio differential (also 6 cylinders) it's rated to 115 MPH but still it has a 2.996 liter engine.
There was a post by someone on the 'Forum that had a picture of a speedometer at 115 MPH I believe it was in So. Cal, a W124 diesel I think.
Here's the picture.

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  #20  
Old 11-20-2004, 02:44 AM
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Join Date: Feb 2004
Location: North Dakota
Posts: 4
I drive my 1985 300SD over 100 almost every time I take it out which is almost every day. I live in North Dakota where the highways are like a flat ruler and the cops are few. Top speed on mine is about 112-115 which I do often. It handles really nice even at that speed, MUCH better than my '93 Jeep Grand Cherokee which wobbles all over after 95 mph. I have even taken the Mercedes 100 mph on gravel when I wasn't paying attention. 20 mile long gravel road gets long after a while! While it handled fine I would never do that again! I just drove nonstop from Boise Idaho to Minot ND last night averaging 105 through eastern MT and ND. These cars like to go fast and so do I.
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  #21  
Old 11-20-2004, 05:40 PM
Brandon314159
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Quote:
Originally Posted by Black300SD
I drive my 1985 300SD over 100 almost every time I take it out which is almost every day. I live in North Dakota where the highways are like a flat ruler and the cops are few. Top speed on mine is about 112-115 which I do often. It handles really nice even at that speed, MUCH better than my '93 Jeep Grand Cherokee which wobbles all over after 95 mph. I have even taken the Mercedes 100 mph on gravel when I wasn't paying attention. 20 mile long gravel road gets long after a while! While it handled fine I would never do that again! I just drove nonstop from Boise Idaho to Minot ND last night averaging 105 through eastern MT and ND. These cars like to go fast and so do I.
I ran the test last night and we did break 105 (105.9MPH) but the police presence was heavy enough that I couldn't use my past roads. I had to use some shorter ones and that didn't yeild good tests. Doing some approximation with where the tach was a 105 compared to where it was when I was driving before it has broke 110 and sqeaked near 115. The only good open flat road option is the freeway but it is a civil war agaist two colleges this weekend so I don't DARE break the speed limit on there

Anywho, the test, combined with some math, shows it has and can break 110. my guess would be it is going to be close to the numbers that Black300SD gave. It did handle a lot better at those speeds than coming down the mountain I a while back. Espically when a friend of mine didn't tell me about a corner!

As far as non-stock things, here they are:
-No EGR (vac disabeld)
-Possible Fuel Adjustment (PO did if the case)
-No resonators
-Different Muffler (worked a deal at the muffler shop for some sort of high flowing v-8 muffler becuase it was a display model)
-Slightly undersized tires (messes up my speedometer)

I think if the tire issue was addressed and everything, some new numbers would come up. Didn't help either last night that it dropped below freezing while we were out driving! Chilly...

Oh that reminds me, my car has 278,300 Miles on it...
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  #22  
Old 11-20-2004, 06:15 PM
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Join Date: May 2003
Posts: 2,218
That's great. However, you said that you recorded via GPS 122 mph?

The fuel is winterized and doesn't have great firing properties right now. That may be part of the reason.

Glad you didn't get busted. I'm sure your diesel more than appreciated a spirited run.
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  #23  
Old 11-20-2004, 06:16 PM
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Join Date: Mar 2003
Location: SW WA
Posts: 5,741
Quote:
Originally Posted by Brandon314159
-Slightly undersized tires (messes up my speedometer)

I think if the tire issue was addressed and everything, some new numbers would come up. Didn't help either last night that it dropped below freezing while we were out driving! Chilly...

Oh that reminds me, my car has 278,300 Miles on it...
Undersized tires will definitely show you higher speeds than it's actually going.
A diff with a lower number rear end ratio will increase the top speed though off the line acceleration will suffer. MB had some W126's with 2.24 diffs and I would think they would be an easy swap.
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  #24  
Old 11-20-2004, 07:17 PM
Brandon314159
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Quote:
Originally Posted by DslBnz
That's great. However, you said that you recorded via GPS 122 mph?

The fuel is winterized and doesn't have great firing properties right now. That may be part of the reason.

Glad you didn't get busted. I'm sure your diesel more than appreciated a spirited run.
Yeah.
The car defintely has its good days and its bad...sometimes it feels real peppy, others not. The winter crap doesn't help

The diesel gets a pretty spiritied run almost regularly on the way to school and back haha!
Once and awhile I take it for a really long uphill go and get the engine niec and toasty. Runs smooth as a purring kitten heh.
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  #25  
Old 11-20-2004, 07:19 PM
Brandon314159
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Quote:
Originally Posted by lietuviai
Undersized tires will definitely show you higher speeds than it's actually going.
A diff with a lower number rear end ratio will increase the top speed though off the line acceleration will suffer. MB had some W126's with 2.24 diffs and I would think they would be an easy swap.
Yeah,
I just never expect to NEED or regularly WANT to go anywhere that fast...all things considered I like the car as it is...just sorta doing tests.
In constant stop and go traffic on the way to school the pep off the line is important to keep lane placement!

Its crazy out there.
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  #26  
Old 11-21-2004, 01:49 AM
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Join Date: Oct 2004
Location: El Paso, TEXAS
Posts: 35
Thanks for all the replies!! I will let him know. I'll bet his engine is very tired or the turbo is not working because he only claims to be able to get about 75.
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