My mods include, K&N air filters, 3inch stainless steel down pipe, reduced
pulley gears, and 8lb flyweel.. I just wanna know if spending a grand on an Apexi Power FC is what i should do next. What do you guys think?b

 

You can if you have some more mods in mind. At this level I don't really see the point as long as you are running 10-11PSI and the stock cat. is in place.

You might consider it for later on in the cars modding career.

 

I agree with the above statement. It all depends on what you want to do with the car in the future. If you do decide to purchase one, they can be had for around $740 from http://www.jappartsspecialist.com/

Also, check out Dale Clark's outstanding writeup on the PFC. It has tons of info...

https://www.rx7club.com/power-fc-forum-47/new-version-powerfc-faq-573647/

 

To the post above that is some Good information. I even needed that... haha.

 

Do other stores besides rx7store send you the product with your mods added to the ecu? I will eventually be doing some bigger mods like fmic and maybe single turbo. But is it possible to be reaching around 300whp with my mods + a rx7store tuned power fc? I basicly wanna get the most hp out of my mods without converting to single or doing anything else major yet. thx for the help guys -eric

 

I am not sure about all stores, but I do know that other stores can input your options into the PFC before sending it to you.

You can also try searching in your regional forum for someone with some PFC experience, or someone with a datalogit who could input those things for you.

You are going to have to find someone with some good PFC tuning experience to help you get the most out of your car; however I wouldn't advise pushing your car to the limits if you have not done the proper reliability upgrades (can be found in the stickies at the top of this forum).

https://www.rx7club.com/3rd-generation-specific-1993-2002-16/faq-3rd-gen-other-useful-links-68640/

Just my $.02

 

Got mine off ebay for 700 flat shipped, with your current mods its certainly not required, but if you plan to go farther you will need it.

 

I definitely recommend it at nearly any level of modification. Not only does the car run fantastic with it - no 3k hesitation, better power, etc. - but you have plenty of safe headroom to run more mods, boost, etc., without always wondering "will this setup work with the stock ECU and not blow my motor?"

The stock map has plenty of headroom for most simple bolt-on mods, and going past that you really should have professional tuning, or learn to tune it yourself.

Dale

 

So the rx7store map to "fit" my car is not recomended? How much hp do you guys think the rx7store tune will put my car at with those mods?

 

The only thing I change on the Power FC given your mods is the timing. I also change a few other things, but timing it the main one.

Jason

 

That's usuful information for me to know in the future, as long as i fix my current problem. Thanks!

 

huh? lol

 

Its not fully programmed "just for your car". Jason makes some safe changes to the mapping based on your mods and then its up to you to get it fine tuned for your car (after its installed).

 

So the map that's apparently optimized for DP, Hi Flow, CB, intake, and intercooler will work fairly well with only a DP? I was also debating looking at some sort of engine management in the very early stages for the same reasons that Dale posted, but I wasn't sure if I would have to de-tune it to match my bone stock + DP setup.

 

The powerFC is hands down the best mod you'll ever do. I promise

There is nothing better than being able to control everything your motor does.

 

What's the point of getting a programmable ECU if you aren't going to have it tuned for your car? Sure you can run a map tuned for more mods than you have, but you'll run rich, get bad gas mileage and foul your plugs prematurely.

 

What's the big deal???

He can always load in the Base Stock map for the time being.

And everyone knows how long their car will stay "basically stock"

I got the PowerFC when I only had an intake and a downpipe....right after I put my streetport motor back in. I couldn't get the car to idle correctly with the stock computer and I had all sorts of emissions problems because it idled to rich and would not pass.

I got the powerFC, did a little playing around with it and it solved all of my issues. I can't imagine owning this car without the PFC.

 

If you couldn't get the car running right with the stock ECU, then something is wrong with the car. The PFC may allow you to mask the problem(s) by either programming out the fuel problem or ignoring sensors the stock ECU wasn't, but that's not a great solution for the problem(s).

 

I got it running right, but it idled too low for my liking and it was too loopy.

On top of that, it was really rich even after I replaced the o2 sensor and main cat. Air pump was working, but it was just outside of the passable limit in Vegas.

I plugged in the powerFC, and it worked fine after I took out a little fuel from the idle cells. I passed with flying colors, almost zero emissions.

I used the sensor check function on the PFC and nothing is wrong with any of my sensors, all of them are getting a reading and responding.

Either way, I still think it is one of the best mods you can do because not only does it open up your ability to mod the vehicle, but it allows you to control all aspects of the engine and really fine tune little things that bugged the **** out of me with the stock computer in place.

Then again, I like to play with this sort of thing. But like I said, I still feel like it was the best mod I have done to date.

 

PFC= Probems

 

LOL whatever.....

 

Hmmmm, PFC = Easiest way to complete programmable control. Problems?

Try 12lbs of boost and a idpipe on the stock ECU. Enjoy your rebuilds. I think those are bigger problems than the minor headaches associated with wanting more power and tuning for it properly.

 

Try 12lbs of boost, a midpipe and an improperly tuned PFC. Enjoy your rebuilds.

The PFC is no better than the stock ECU unless its properly tuned. Any ECU is bad *IF* its not properly tuned.

 

Ok now im just confused.... If i install the PFC with my mods, dont do anything to it, dont up the boost or anything till i get more mods, its bad for my car.. ? The rx7store tune is a bad one? And wouldnt a basic tune be better then no tune at all?

 

The default PFC map is fine for running some bolt-ons at 10-11 psi.