[W126 Coupe] Fuel Requirements or How Can I Adjust 1989 560
SECTo Use 87 Octane
mavris2 at comcast.net
mavris2 at comcast.net
Thu Apr 27 19:30:21 EDT 2006
Why cant one just add octane boost to the fuel? They have stuff for 5bucks that claim a 10 point increase in octane. Any thoughts??
----- Original Message -----
From: Dan Landiss
To: Mercedes Coupes Mailing Lists
Sent: Thursday, April 27, 2006 3:08 PM
Subject: Re: [W126 Coupe] Fuel Requirements or How Can I Adjust 1989 560 SECTo Use 87 Octane
XKEOTS at aol.com wrote:
Is there any way to make our 560's run or 87 octane?
There is a 750 ohm resistor (US models) inside a black plug in the wiring harness up near the brake booster. It contributes to the computer's decision on spark advance. For other markets, an adjustment can be made as follows:
Setting Ohms Retard Octane
S 10000 0 98
2 2400 2 95
N 1300 4 93
4 750 6 91
5 470 8 89
6 220 10 87
7 0
But I gotta tell ya', with 470 ohms in there it is going to feel sluggish!
--
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