Gary,
Your suggestion about the article in "Classic & Sports Car" does indeed
provide all the definitive answers, pro and con. I heartily endorse it for
George.
As to your own vehicle, if it is pinging under load, make certain that the
advance is not greater than 6 degrees BTDC. My 1995 Defender 90 Station
Wagon runs fine at 9 degrees with Sunoco "Ultra" (94 RON) with an
occasional dose of Sunoco "Cam II Racing Unleaded" (100 RON).
If everything is set up correctly, you may just be building up some carbon
deposits, in which case add a can of BG "Supercharge" to a full tank of
fuel prior to your next oil change. DO NOT USE THE STRONGER BG
PRODUCT. If all that provides no relief, you may have the wrong chip,
or need a different one for a different Range Rover. Does your fuel in
Ohio have grain alcohol content?... Very, very bad. Amoco is alleged
to use none of this foul stuff in their 93 RON for all 50 States. You
might want to verify with their marketing people that this is still the case.
The Brits won't know what we're talking about as they can obtain
97-98 RON anywhere... but then, again, they have to PAY for it.
Regards,
William G. Lamb, III MailTo:lambroving@worldnet.att.net
Land Rover Specialist
M.S.C.C. # 9096
At 11:22 AM 6/21/98 -0400, Gary Kneisley wrote:
>At 08:43 AM 6/21/98 +0100, you wrote:
>>I am hoping to trade my 4/4 4 (1987) for a +8 (1991-1993) in the next few
>>weeks. I have decided what specification to look for apart from whether I
>>should have one with a cat or not? Ignoring any environmental benefits, what
>>are the pro and cons for a cat, as I believe they were not compulsory until
>>August 1994 here in the UK?
>>Thanks,
>>George
>>MSCC 7193
>>
>>
>
>George...
>
>Here in the US, some state governments have mandated "e-check" inspections
>wherein cars cannot get a license if they don't pass. There are a few
>exeptions which are hard to get.
>
>It makes sense that the entire world will one day be in the "e-check"
>business in one form or another. I have a '91 +8 3.9 EFI with the cat.
>This car was imported to the states without the emission controls, converted
>to propane for sale, then last year converted back to gasoline and the cat
>system installed to make it fully legal for Rover import specifications.
>The car is now fully legal everywhere, I am led to believe. I read
>somewhere, the catalytic converter system does not impede the performance of
>this engine over the non-cat car. I note, however, I do get a lot of engine
>knock on hard acceleration with American premium gas (93 0ctane). It seems
>worse this summer than last summer, so I expect something has affected the
>timing or the gas is getting worse. That's on the top of the list for the
>next trip to the mechanic. (any hints from the gallery?)
>
>Back to the point.. get a copy of the Feb 1997 issue of Classic and Sports
>Car magazine for a terrific article about the 91 +8, non-cat, and a sidebar
>about Maurice Owen, the developer of the +8. It'll tell you a lot about the
>car.
>
>If the car you are looking at was legal without the cat when it was built,
>the government probably cannot make you put a cat on it. If you are looking
>for original concourse, it should probably be "as built".
>
>Regards.
>
>
>Gary
>Grafton, OH USA
>
>
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