what is the boost level in this dyno ?
I was thinking of more in the range of 0.026-0.028” @ 25 psi with the b58 plugs since it has a smaller core.
It would also be interesting to see how it performs with IGR enabled.
PROMO Nexsys Motorsport N54 Ignition Coil Upgrade Kit
- Thread starter bahn
- Start date
what is the boost level in this dyno ?
I was thinking of more in the range of 0.026-0.028” @ 25 psi with the b58 plugs since it has a smaller core.
It would also be interesting to see how it performs with IGR enabled.
not 100% sure, load is 180, maybe 25+psi.
it is theory, we will see after it is installed.
Did anyone else get 100 wtq gains with no tuning changes by just changing their coils? Asking for a friend.
Hey Blue Lightning, I would stay away from those "performance upgraded" coils. Check these out: https://www.fcpeuro.com/BMW-parts/340i/Ignition-Coil/?year=2018&m=20&e=17477&t=5&b=5&d=15456&v=
We have a version for the stock valve cover that will be available for pre-order tomorrow and will begin shipping mid-late February! Pictures coming shortly!
On the stock N54 coils I ran into misfires at 560 whp above 5200 RPM with a 0.022" gap. Car runs out clean on more boost now with the same gaps on the B58 coils.
Those type of gains are unlikely unless you're experiencing misfires.
Well two things about that... First off the Eldor Coils seem to be the best option, not the Bosch ones. And second that advert you posted is for for Coils in the US. Its dumb to buy stuff all the way over there, when I can get the same coils in the UK or Germany with Zero Import charges.
Plus I've already ordered 6 of the Eldor ones now. Some guy in Germany buys in Brand new engines, strip's them and then sells the parts at about 1/2 the listed price.
Rob
Honestly I’ve dynoed and tuned a lot of cars and I’ve never seen any whp gains by opening up plug gap, even with the best ignition systems.
you can get a little better drive ability and fuel economy though.
you can get a little better drive ability and fuel economy though.
Well on the n55 M2 the coils in use are the Delphi s55 coils, so it out puts a bit of extra power over the n54 coils. So on the m2 we don't actually have to gap down at all until really deep into the 4xx whp range close to 500 whp. Essentially we can tune to stock m4 cs power levels which is like 460 whp without any issues on the stock plug gap.
So that's why I'm not sure if there is any benefits to getting a coil upgrade if I never had to gap down in the first place. I have heard of people getting power gains with coil upgrades so that's why I'm curious, also since I will be on E85 so it will likely help with combustion.
I wouldn't say no benefits. More spark energy will help achieve a more consistent & complete combustion process and help fire through fouled plugs. Power can still be gained from ignition coil upgrades even if misfires aren't occurring.
It's that time! Our kit that fits Stock & VTT valve covers is now available for pre-order! Our kit allows the factory engine cover to be used. We expect to begin shipping this version the last week of February and will only have limited quantities to start so get your order in soon! Same deal with our other bracket:
Pre-order yours here!
You can pre-order a kit here.
Thank you for your support!
Pre-order yours here!
- Made in the USA from billet 6061 aluminum
- Made & Assembled in the USA Plug & Play connector harness (if selected)
- 6 x Longer ignition coil boots to fit stock & VTT valve covers
You can pre-order a kit here.
Thank you for your support!
Very nice, very clean execution. Nice to have more choices for coil options that can improve reliability for the N54.
I'm currently running the R8 coils and they work great for me right now. No more text msgs from the wife that the car went into its Christmas light theme mode on the dash. Lol
When I'm ready to splurge on sexifying my engine bay with a nicer valve cover I will definatley give these a go.
Nice work Nexsys.
I really appreciate the kind words, thank you!
Try now Tony, I just fixed our website to support international shipment. Thank you!
Nice work, @bahn . I will likely be an eventual customer. I like the execution of this all the way around, especially since it seems to address what have been mostly physical shortcomings in other solutions.
Maybe I missed it but can you say more about the harness/connectors? Some prior solutions were pretty Radio Shack / shoddy IMHO. Not the class of wiring/connectors one might want for the application. (I did see the 3D print connector part of that equation).
Filippo
Maybe I missed it but can you say more about the harness/connectors? Some prior solutions were pretty Radio Shack / shoddy IMHO. Not the class of wiring/connectors one might want for the application. (I did see the 3D print connector part of that equation).
Filippo
Our connectors are Made in the USA with a process called Multi-jet Fusion. The material used is PA 12 (Nylon) with a heat deflection temperature of 347 F @ 66 psi (ASTM D648 Test Method A). Our connector design utilizes locking tabs to retain the terminals and a locking arm to retain the connector to the factory harness. Wire utilized is a quality 1mm (stock gauge) cross-linked TXL in the factory wiring color scheme. The B58 coil connector and terminals are genuine TE components. All terminals are crimped. Finally the harness is sheathed in a fire retardant coated fabric loom that is ideal for harsh environments and rated for 275 F.
Here's some pictures of our assembled plug and play harnesses, let me know if you have any additional questions I didn't answer!
Great job. This right here is how you do shit. I've already preordered my VTT VC kit. Question...what kinds of gaps on the N20 plugs are you guys testing with and what will the optimal gaps be? Or, is there a better plug to run with these coils?
B58 coils and NGK 94201 plugs
It looks like the ngk 94201 B58 spark plugs would be a good match for this setup. It’s a step colder and the dimensions are identical to the 97506. Plus the terminal is flat. Would be interesting to see if it we can run the 94201 stock gap (0.75mm) with the B58 coils @ 25 psi.
www.spoolstreet.com
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