Recently just made 722WHP on a apexi power fc with 3bar map sensor. We were able to yield 722whp 520tq on e85 @ 29 psi on a Semi P turbo. I just order a 4 bar map sensor from greddy. once that comes in Im shooting for 40 psi. Its very possible to hit 800-900whp..

Just curious has anyone pushed the Apexi power fc that far? Please post below! Links, dyno sheets, dyno videos,etc! Ive tried searching all over google and cant find anything. in the name of manswers/ science, Im curious to see just how far this old ecu can or has pushed.

attached is a video of a quick pull at 29psi. The car is driven daily to work and home. So far has been super reliable..

 

Cool, the question is why? I am guessing you are using a brand new OEM engine harness?

 

why not?

 

No real engine protection for one, no boost by gear, traction control etc. It just makes no sense these days.

 

More power to you, accuracy and repeatability have never been a fault of the PFC which is all thats really required to make 'big power. Transients, QOL, and as has been mentioned, engine protection are non-existent at worst and archaic at best.

 

What turbo are you running?

And what's Q.O.L?

can't keep all caps for some reason...

What kind of engine protection are you guys referring to? I use the last boost row to dump fuel and pull ignition in the event of overboost, also use all the Temp vs xxx settings for engine protection.

Is the Adaptronic Traction Control finally working?

 

Quality Of Life (autotuning features, reasonably open and accessible support from the manufacturer, etc etc). In response to engine protection, any at all. Reducing map resolution to hack together some form of safety net is not my idea of a reasonable solution but more power to you if you'd like to.

 

Honestly, I was just curious to see how far anyone has pushed. You will rarely ever hear anyone using pfcs to push for much power. i always thought it was fun challenge seeing how far it would go.. engine protection whats that? jk
We ordered a greddy 4 bar map sensor a few weeks ago.. still hasnt come in yet.. Once it comes in 40 psi time...

 

in the name of science why not??

Using a off the shelf 13b 93-95 lhd rywire harness and off the shelf sakebomb garage coil kit.

 

What Uncle Hungry said below

+ with modern digital dash displays, which eliminates the use of multiple gauges all over the place. PFC does no integrates with these modern dashes, like stand alone ecus do. Another thing is datalog access, IMO is much easier to access data log on demand with most stand alone ecus than on a PFC.

What science is that? Dont mean to be negative, I just don't see the point to it when having to purchase a PFS, and new harness; only to be limited to what the PFC can do (as stated by Uncle Harry, plus my comments to his response).

 

Man just saw on gram u pushing sick power,
Can you share some of the science
Leading trailing timing, dwell on max boost and max rpm on wasted leading spark?
Keep up the good work
​

 

950whp on PFC

https://www.rx7club.com/power-fc-for...p-pfc-1114998/

 

Not completely sure why people don't understand that peak power numbers will not change from one ECU to the next so long as you can get the same amount of fuel and the timing/trigger systems are accurate. The question is always: ease of use, reliability, quality of life, and support among a few others that ultimately (within reason) have very little to do with a dyno sheet.