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Re: Inertia Switches

To: "dahlgren" <dahlgren@uconect.net>,
Subject: Re: Inertia Switches
From: "JAMES CANNON" <dr.piston@worldnet.att.net>
Date: Thu, 9 Dec 1999 09:37:31 -0500
Ditto on the bad idea, a poor choice of paths down the Maxton mile could
very well trip a switch and where would you be then


Jim in Salem VA
-----Original Message-----
From: dahlgren <dahlgren@uconect.net>
To: Lawrence E. & Cathy R. Mayfield <lemay@hiwaay.net>;
Land-speed@autox.team.net <Land-speed@autox.team.net>
Date: Wednesday, December 08, 1999 11:30 AM
Subject: Re: Inertia Switches


>This is a not a good idea in all the racing i have done in the last 10
>years or so since EFI came out.. There are a lot of reasons to set one
>off starting with a bump from the push car.. They are as safe as any car
>with a mechanical switch if installed correctly so that if the engine
>stops the electric pump stops .. Just like a mechanical pump with a carb
>or a Hilborn setup...Please don't encourage the rule makers to add
>something that is very hard to test...And above all is a non issue maybe
>they should check to see if the engine is shut off does the pump stop. I
>bet there are a bunch of carb cars with electric pumps that are not
>nearly as safe as EFI.. I know that you are a very good engineer , this
>is my field of expertise though.. I have been there and done that from
>designing EFI parts that have won the 24 hrs of Daytona several times
>and lot of other world championships to 7 second doorslammers and 130mph
>offshore race boats and won in all those areas...Oh set a couple of
>records at the salt just for fun too...
>Dave Dahlgren
>Engine Management Systems
>
>"Lawrence E. & Cathy R. Mayfield" wrote:
>>
>> Any of you with, ahem, electronic fuel injection systems, using an
inertia
>> switch to cut off fuel when things go bad (hopefully not)? If so where is
>> it mounted? Most (all?) seem to be located somewhere in the trunk area of
>> the new cars.
>>
>> Any thoughts? Actually they should be used on any car with electric fuel
>> pump? Perhaps this needs to be a rule addition for safety?
>>
>> mayf
>>
>> L.E. Mayfield
>> 124 Maximillion Drive
>> Madison, Al. 35758-8171
>> 1-256-837-1051
>>
>> old >>>>>>>>  http://www.hsv.tis.net/~mayfield
>> new >>>>>>>>  http://home.hiwaay.net/~lemayf
>>
>> DrMayf@AOL.com
>> lemay@hiwaay.net   <<<<preferred
>>
>> Sunbeam Tiger, B9471136
>> Sunbeam Alpine Bonneville Land Speed Racer,
>> '66 Hydroplane Drag Boat (390 FE)



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