My car came with the BavAuto coilpacks and I was getting misfires.
Since I'm a reseller of Okada/Ignition Project coilpacks, I decided to order a set to test them out in my NA s52 stock cam setup (expecting no gains) and in my friends boosted m52 e36 (expecting gains).
I don't sell snake oil, so when possible I like to prove to myself if the products I represent work or not. I have used these coilpacks on multiple VW and Audi builds to make significant gains (see links at bottom of post for dyno test results), so I expect the same here in the BMW world.
The e36 is running stock coils, but don't know how old they are just to get that question out of the way. He is putting down 550+whp so the stock coilpacks work.
On tq/hp plots, the colored dots on the left edge represent the pull number.
The first session of 3 pulls (red, green, blue) were on stock coils and the second session of 3 pulls (violet, cyan, yellow) on the new upgraded coils. The power plot show the 1st and 3rd pulls from each session.
The upgraded coils produced a very consistent results, and to our surprise and increase in power as well as we did not expect any on a NA engine.
Below is a plot comparing the first pulls (red = stock, violet = IP coils) from each session and a 17.6hp and 15.9tq gain just from running the new high output coils.
Discussion:
Looking at the results and AFR plots there is some adjusting that can be done. I sent these results to Technica and they are going to send me an updated tune and I will go dyno again with that file and hope to see a better torque curve and final numbers.
Not sure why there was such a noticeable power gain on a NA engine with a coilpack swap as I expected none. Next dyno session I hope to have new stock coils on hand to try this comparison again.
I did pick up a used set of Jethot e36 shorty headers, so I wanted to get a good base dyno down before installing them to see if the torque improves as speculated.
Here are links to previous dyno testing I have done on these high spark coilpacks on modified and a stock Audi:
dyno test dropping in coilpacks and swapping spark plugs:
dyno test using a stock audi a4: http://www.audizine.com/forum/showth...acks-installed
Since I'm a reseller of Okada/Ignition Project coilpacks, I decided to order a set to test them out in my NA s52 stock cam setup (expecting no gains) and in my friends boosted m52 e36 (expecting gains).
I don't sell snake oil, so when possible I like to prove to myself if the products I represent work or not. I have used these coilpacks on multiple VW and Audi builds to make significant gains (see links at bottom of post for dyno test results), so I expect the same here in the BMW world.
The e36 is running stock coils, but don't know how old they are just to get that question out of the way. He is putting down 550+whp so the stock coilpacks work.
On tq/hp plots, the colored dots on the left edge represent the pull number.
The first session of 3 pulls (red, green, blue) were on stock coils and the second session of 3 pulls (violet, cyan, yellow) on the new upgraded coils. The power plot show the 1st and 3rd pulls from each session.
The upgraded coils produced a very consistent results, and to our surprise and increase in power as well as we did not expect any on a NA engine.
Below is a plot comparing the first pulls (red = stock, violet = IP coils) from each session and a 17.6hp and 15.9tq gain just from running the new high output coils.
Discussion:
Looking at the results and AFR plots there is some adjusting that can be done. I sent these results to Technica and they are going to send me an updated tune and I will go dyno again with that file and hope to see a better torque curve and final numbers.
Not sure why there was such a noticeable power gain on a NA engine with a coilpack swap as I expected none. Next dyno session I hope to have new stock coils on hand to try this comparison again.
I did pick up a used set of Jethot e36 shorty headers, so I wanted to get a good base dyno down before installing them to see if the torque improves as speculated.
Here are links to previous dyno testing I have done on these high spark coilpacks on modified and a stock Audi:
dyno test dropping in coilpacks and swapping spark plugs:
dyno test using a stock audi a4: http://www.audizine.com/forum/showth...acks-installed
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