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"For driving more than 100 mph: + 6 psi"
That's what it says on the inside of my fuel tank flap about tire pressure, but I don't know how long the car would last going that fast.
3000 RPM = 67 MPH 3500 RMP = 78 MPH 4000 RPM = 90 MPH Didn't get a chance to take it to 100 mph that day. This is with the stock rear end and 205's on it. The speedo seems to be correct based on mile markers and the lovely "your speed is XX" signs all over town. Where do you think "red line" is? I'd be more concerned about other things than my tire pressure if cruising at 100 for sustained periods of time.
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B - 1983 300SD |
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As for the redline where the engine won't tolerate additional speed........that's more of an uncertainty. Brandon has run them over 5K without any consequences. |
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'81 MB 300SD, '82 MB 300D Turbo (sold/RIP), '04 Lincoln Town Car Ultimate Sooner or later every car falls apart, ours does it later! -German Narrator in a MB Promotion Film about the then brand new W123. |
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Hopefully I won't get in any trouble for saying this but he's still really active at the "other forum".
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Seth 1984 300D 225K 1985 300D Donor body 1985 300D Turbo 165K. Totaled. Donor Engine. It runs!!! 1980 300SD 311K My New Baby. 1979 BMW 633csi 62K+++? Dead odo |
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Last edited by Brian Carlton; 04-17-2006 at 05:50 PM. |
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I've only gotten up to 85 so far. At 80 my rpm's were about 3600.
I'm really impressed with the feel of the car at 85. My last car was a 5.0 Mustang and while it had no problem reaching the massive speeding ticket speeds, the windows would suck in and it would become harder to handle around 80-85. When I drive the Mercedes at that speed it feels like I could just as easily be going 40, except for the way the scenery is whizzing by.
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Ralph 1985 300D Turbo, CA model 248,650 miles and counting... |
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On my '95 I hit just short of 5000 rpms this morning - 110 mph.
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- Brian 1989 500SEL Euro 1966 250SE Cabriolet 1958 BMW Isetta 600 |
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It would have to be an aftermarket radio. The stock one isn't loud enough to drown that out........
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Jimmy L. '05 Acura TL 6MT 2001 ML430 My Spare Gone: '95 E300 188K "Batmobile" Texas Unfriendly Black '85 300TD 235K "The Wagon" Texas Friendly White '80 240D 154K "China" Scar engine installed '81 300TD 240K "Smash" '80 240D 230K "The Squash" '81 240D 293K"Scar" Rear ended harder than Elton John |
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Actually, with the 2.88 and the larger tires, it's very quiet at 3K which translates to just about 70 mph.......about as fast as you can go around here. |
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Brian, Tom, how much do you think that would improve my mileage? |
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