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Re: EI and Ballast

To: Edward Hutchinson <seah@zorba.info.sunyit.edu>
Subject: Re: EI and Ballast
From: stu.jo@ibm.net
Date: Mon, 13 Apr 1998 10:12:35 -0700
Cc: triumphs@Autox.Team.Net
References: <3.0.1.32.19980413081138.0070d7bc@zorba>
Edward Hutchinson wrote:
> 
> >From the Crane Cams/Allison Hi-Intensity Ignition Installation Instructions:
> 
> XR700 EI:
> 
> "If you are keeping the original equipment coil, you do not need to do
> anything as far as ballast resistance.
> 
> If you are changing coils and your vehicle has a ceramic ballast resistor
> or resistance wire, do not use any additional ballast resistor that may be
> provided with the coil.
> 
> If your original equipment coil had internal resistance and you are
> changing to a new coil with lower resistance (such as an aftermarket
> performance coil), you must add a 1.2 to 1.9 ohm ballast resistor."
> 
> XR3000 EI
> 
> "For maximum performance, any ballast resistancemyst be bypassed.
> 
> If your original equipment coil has internal ballast resistance, you must
> replace the coil. (All Bosch blue coils and Lucas coils have internal
> resistance.)"
> 
> I talked with the people at Moss (Crane was closed because of the holiday)
> and their tech person said you did not have to disconnect the ballast
> resistor if you were adding a Lucas Sports coil even though the
> instructions with the coil say to do so.
> 
> It would seem from the instructions with the Crane XR700 and what the
> person from Moss said, that both the EI and Sports coil could be installed
> with no changes required to the ballast resistor.
> 
> Interested in the opinions of the list.
> 
> Ed
> 
> ~ ~ ~ ~ ~ ~ ~ ~ ~ ~ ~ ~ ~ ~ ~ ~ ~ ~ ~ ~ ~ ~ ~ ~ ~ ~ ~ ~ ~ ~ ~ ~ ~ ~ ~
> "Since light travels faster than sound, isn't that why some people
>  appear bright until you hear them speak?"
> ~ ~ ~ ~ ~ ~ ~ ~ ~ ~ ~ ~ ~ ~ ~ ~ ~ ~ ~ ~ ~ ~ ~ ~ ~ ~ ~ ~ ~ ~ ~ ~ ~ ~ ~
> 
> Ed Hutchinson
> Financial Aid Office
> SUNY Inst. of Technology
> P.O. Box 3050
> Utica, NY 13504
> 315-792-7210
The Sports Coil is designed to run off 12 volts.If you connect it to an
external ballast it will only get 6 volts, thus negating the whole point
of buying it, IMHO of course.
Stu
74 TR6 with 12v coil.

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