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Old 05-08-2009, 08:35 PM   #13
C Sean Watts

Name: C Sean Watts
Title: United Newb
Status: Offline
Join Date: Sep 2008
Location: Raleigh NC
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Your Ride: 1997 328is and others
Quote:
Originally Posted by C Sean Watts View Post
I'm ordering some for my '97. The car runs well as it is but I have used MSD and Jacob's coils on other cars and the improvement from coils alone was always worth it in long run.

I'll be posting before and after results....

BTW, DOES ANYONE KNOW WHO MANUFACTURES THESE? BAV isn't sharing too much..
UPDATE: I got them and measured the resistance of the primary sides on all coils. All are in the factory range 0.4 to 0.8 Ohm. I installed them...I changed NOTHING but the coils.
1. Slightly quicker start up warm and cold.
2. Idle is about the same. Idle was smooth before the change so I'm not surprised.
3. BIG improvement in acceleration, felt and measured. I went to a known 1800 foot marked area with little traffic. Started from a stop and WOT to the end. With stock coils = 0.40 seconds slower.

4. I'll update with mileage differences in a few tank fulls.

Last edited by C Sean Watts; 05-08-2009 at 08:37 PM..
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