Quote:
Originally Posted by rbryantaz
I agree.
Very few upgrades have scientific data like that...
There are also many variables such as ethanol mix, temperature, other upgrades, etc. Most will also go with the proven small spark plug gap.
There are now several people running the b58 style coils with good results and we know that the specs for the eldor b58 coils and have information from Dinan on stock coils and their coils. Dinan however did not state what stock coils they used.
https://www.dinancars.com/products/e...arts/D650-0003
https://www.eldorgroup.com/en/produc...ignition-coils
Attachment 2829203
Dinan shows their coils maxing out at 96.6mJ @ 3ms dwell and the stock N54/N55 being 81.6. If we assume that the S55 coils are similar to the Dinan versions (Dinan claims 10% higher for their coils) the Eldor B58 still has 25% more energy at their spec of 130mJ over the Dinan and S55 coils.
So the B58 coils are more powerful. The question is if they are needed or not. 
Even if someone does back to back dyno testing it won't "prove it" for all setups.
-Rich |
I agree B58 coils are superior technically, but whether they translate into actual performance improvements or better longevity wise, that remains to be seen.
In my opinion coils failing at 40-60k miles is hardly an issue for us tinkerers who spend thousands on the car and other failure points.
I mean if someone does huge starship miles on their N54, then they should obviously look at longer lasting coils, otherwise for someone like me, I'm looking changing coils every 6 years or longer, hardly a concern for me.