We replaced them with high-quality OEM double platinum electrode plugs that were one heat range colder.
Dimensionally the Ignition Projects multi-spark high energy coils are pretty close in size to the stock Subaru parts.
The new Ignition Project coils install the opposite way as the stock coils were removed. That’s it, as easy as changing plugs. No messing around or requiring needed!
The Ignition Projects coils went in as easy at that and look pretty stock. Bye-bye cold misfires and cold start cranking!
With Ignition Projects easy integration into the factory ignition system of true super high-performance, multi-spark capability, Ignition Projects coils is a snap, enhancing modern ignition systems with no wiring or fabrication needed at all! This is a mod anyone can do, in minutes.
As seen on the 1000 hp 2JZ in the Eneos Pikes Peak FR-S, we have previously used Ignition Projects coils (formally Okada Project) on many racing applications from drift to time attack cars with great success. Tons of boost, Nitrous or stuff like water injection that makes the fire hard to get started, no problem!
On Project GD STI, the Ignition Projects coils performance difference was apparent as soon as the key was turned, the engine started up much easier. Before, with E85 fuel its would take a few cranks to get the car to start. The car was also cold-blooded for a few seconds after starting from cold with a rough idle and boggy throttle response. Now the car simply fired right up and ran normally like it was on gasoline even when stone cold.
Once driving, the EJ257’s idle is much more stable, especially when the engine is cold on E85, no more stalling and having to feather the clutch and add more gas till the engine warmed a little. The engine also runs much smoother in general under all conditions.
We have a lot of stuff planned to get more power for Project GD STI coming up in the next few months. Getting the ignition up to snuff is the ground floor to get things going! The engine is beginning to show its age and is starting to get some blowby so an engine refresh is in order. With strong forged internals and good octane from the Cobb flex fuel kit, we will be able to turn up the boost and lean on the engine, at last, to let Project GD STI reach its full potential. The Ignition Projects coils will come onto their own at this point.
13 comments
Great to see some updates on project GD. I’ve been meaning to get a set of these for my EJ205 with 115k miles on it, but I’m hesitant because of the initial price and hearing that I need a re-tune from my previous tuner (who has since gone out of business) if I install them.
You do not need to retune with these!
I’ve been interested in this product ever since it was under the Okada Projects brand name. It seems these would give you +3 HP across the entire powerband, decrease emissions, increase gas mileage. Probably no downsides except the initial cost!
It is one of the only products that can significantly improve on an OEM coil on plug ignition.
Do these coils stop multi-sparking at a certain rpm, like the MSD ignitions did back in the day (and maybe still do today)?
The manufacturer says it continues to multi-spark as the revs rise.
When tuning my car in with new bits, I’ll use the stock coils as the okada’s will clean up issues that should be resolved by other means.
I’d like to see some data on whether these really live up to their claim of 4x the spark power and this multiple sparking.
As we have seen with coils like the famous splitfire coils for the RB26 it says a lot on the tin but end of the day the spark energy was exactly same as OEM, they were just fancy colours. And at least for RB26 nothing other than the AEM smart coils or going CDI beats out the R35 OEM coils.
Also how do these coils suddenly manage to multispark? Multispark is ECU controlled not coil controlled, and if it was coil controlled you would need to store the energy for multispark somewhere and then control how much is released to then have energy for multispark. I just can’t see this happening with coils that are similar size and shape as OEM coils and just plug in replacements.
I mean there are scientific tests of these coils that have shown they are just a sticker and some fancy marketing but most of that is in forums (granted they did some good testing using good equiptment etc) but I’d like to see a reputable publication do some proper testing with stuff like this, and I don’t mean strapping the car to a Dyno. Some proper testing a la Motive DVD.
So I’d really like to see a test of these vs the OEM coils and some other coils on the market like LS1, R35, AEM smart coils etc.
Not trying to rag on anything but I’d like some empirical testing and data before I call shenanigans 😉
Come on by with your equipment and let’s do it! Seriously there are some electronics in a box on the coil which is probably some sort of transistor and a processor. These coils are nothing new and have a really good reputation. A lot of the top time attack cars and 2JZ powered pro drift cars run these. From using them the I know the plugs stay cleaner, even with heavy lead race fuel and you can run a wider gap than anything else I have tried without misfire even with boost and water injection. You can put these on your car and feel the difference right away.
Bit far away in Germany but I would love to test a set if someone will send me some! I work at an R&D centre for engines & Vehicles and we have some of the equiptment to test this (I just went to ask 😀 ). Im goin to try it out on my factory RB26 and Splitfire RB26 coils and see what I can come up with.
Testing and data is always a good to back up to the real world experience cause I like to know why and how things perform better.
Is the Splitfire a Direct spark conversion kit? It would be great to get the Evo off of waste spark.
Ignition Projects offers the above coil pack ($895) but also a quad-spark coil ($495). What is the performance difference or advantage between this version and their quad-spark on an EJ25?
The quad spark is meant as an OEM replacement with a mild performance gain. The more expensive ones have a much higher output and are used for more performance applications.