While waiting on my wife at the store this weekend, I flipped through Sport Compact magazine. There was a write up on a Red FD.

The car didn't seem to be anything special, however it was noted in the article that normally the APEX PowerFC was only good up to 380Hp, but they did something special and got it to over 400Hp.

What are they talking about? Anyone else read this article and notice this quote?

Thanks,

 

Yeah I bought the mag and still can't figure out what they are talking about.......
The more I read Sport Compact, the less I am convinced that they have a clue about rotary tuning or dynamics.
Maybe I am less knowledgeable than I think or I am not giving them enough credit!

 

That article was full of crap! He claimed his datalogit was "One of a kind" & it was a colaboration between him & "a software wizard in NZ". So, that something special you mention was buying a datalogit from RX7.com!

Another thing to look at was the fact that the car had stock twins & Y-pipe in the pics, but he claimed he was running a T-78!

Load of crap!

 

380 is around the max output of the stock twins, BTW. But, yeah, that article was filled with LOTS of errors.

Dale

 

Not that I like SCC, but maybe there are being conseravtive in that they are thinking about the stock map sensor only being reliable up to roughy 17 psi. 17 psi on the stock twins can (give or take) make 380rwhp depending on state of the engine, twins, fuel delivery, etc.


Tim

 

I saw that article and chuckled. I saw the "T78" and BOY they sure looked small. But then again, my SCC resided in the john, next to the "kings seat."

I think the writer got confused with too much information and was writing about the (average) max for the stock twins at 17PSI is 380.

 

The "something special" might have been the 3-bar MAP sensor. ???

Sometimes they take pictures, then run a story much later, or ask the owner for pictures even if they are old. It's possible the car has a T78 on it now, and needed a new MAP to get > 17 PSI. - who knows. Too bad it isn't more specific - makes learning hard. Well, other than you can buy an old RX7 and put parts on it - but we all know that already.

 

as ECH stated correctly...

You need a 3 bar map sensor, to run higher than 17psi on the pfc. That all...That article was a joke to the RX7 guys.

 

So how much horsepower can the Power FC hold??

 

We will have a couple 500+ rwhp RX-7's in town using the PowerFC finished and tuned in the next month.

K

 

As much as you can stuff into it!

Silly but fitting answer. And a pun too!

A better question I would ask is what is the highest RWHP Rx-7 using a PFC for an ECU? I have seen some 450-500RWHP cars personally.

 

The power fc is only limited if you make it limited.Sky is the limit.

 

Badog,

So that's where your issue goes as well? Beside the throne.

Tim

 

I grew out of Time, Business week, Playboy, the Sunday comics, the sports section. Now it's SCC for the quality time!

 

i looked at who took the picture. he is their in house photographer. he obviously went out there, took pictures and came back. that article is messed up to the max. they kept on talking about how it was a full race car, yet it had a full interior?!?!?!?!? it was all stock inside!!!! im thoroughly displeased with that issue.

check out this months issue with the c-west rx-7. they talk nothing but badness about how the rotary engine is a timebomb. im assuming they are basing this on their in-house rx-7 project. THEY DID NO RESEARCH ON THEIR CAR!!!! THATS WHY THE DAMN THING BLEW UP!!!! they should have come to the forum before they started on that car.

paul

 

what if you wired 2 PFC's in series. could you then make
760HP? "believe none of what you read and half of what you see?

 

Actually you can run higher than 17 psi with the stock map sensor if you have a wideband. The sensor will only 'see' 17 psi but you can make that row as rich as you want. It is kind of an inaccurate mickey mouse method but it is still possible.
John

 

What would happen if you tuned for 20 psi with the wideband and adjusted the PFC this way? Would you get a huge shot of smoke or flame as you passed through 18 and 19 psi?

I still want to find the turbo kit that makes a T78 look like the stock twins. Imagine how much money you could make selling it in places with smog laws that forbid removing the stock turbos

 

I'm about willing to bet that the author granny shifts and doesn't even double clutch like he oughtta....