How safe or unsafe is it to bybass or cut the governer out of the picture. I have a J-spec FD and it tops out at 115 MPH/180 KMH. Not that I want to go much faster than that, but if you've ever driven on the autobahn you can't help it. I don't want to hear stories of how I should drive safe etc, I'm more concerned about my car.
Thanks!

 

It's fine. If you go with a standalone ECU, you won't have it either. It's not like the car is going to lift off the road and go flying through the air like a LeMans car. North American cars do not have the governer.

 

I had a jspec while i was in japan, after i installed my PFC i cut the governor out of the picture altogether...just my 2 cents

 

LOL. That power FC is so expensive. What does it do exactly? Does it eliminate the need for boost gauges all together?

Well, I meant safe as in, if I want to push it beyond 115 MPH and cut the governer out, provided I don't push it too far, is going 15-25 over that going to ruin the Rotaries?

 

power FC is the best all around ECU, the next best thing from that are Haltech, Microtech and Motec.

You'll be able to tune your car for more power and be much more efficient than the stock maps.

Im surprised you dont know this

 

If you think a Power FC is expensive you're in for a world of hurt later with this car. Maybe you should consider selling it for something cheaper to maintain.

 

Well, I'm still getting used to the minor tweaks here and there. Not used to having a real sports car. But very excited. Any DIY on the power FC install?

 

You don't need the PFC to remove the governer:

https://www.rx7club.com/3rd-generation-specific-1993-2002-16/taking-speedo-dash-out-delimit-j-spec-fd-584497/

I only mentioned the aftermarket ECU as there are people running running them and you have the North American FD's which didn't come with governers. Those two bits should let you know it's not going to blow up the motor running without it.

 

Thanks Mahjik, that's a great thread. Is the power FC pretty simple to install?

 

Only an idiot would lecture you. 115 mph is slow on the autobahn (at least parts of it).

The PFC is probably the best mod you could make on this car.

 

That's great advice in itself. Thanks moconnor. Any threads on the install? I can't seem to find any...

 

The PFC is only a good mod if you know how to tune or have someone in your area who can tune it for you. If you cannot tune an ECU or have someone who can, DO NOT get one or you'll do more harm than good.

 

Here's a thread you might find interesting -

https://www.rx7club.com/showthread.p...highlight=fast

 

With the later so called base mod map, the PFC is plug-and-play on stock to mildly modded cars at moderate (13psi or less) boost levels IMHO. I ran with this map untuned for about a year to 13 psi. Sure, it runs a little rich, but so do many of the remapped stock ECUs (e.g., M2, Pettit). (And the stock ECU runs incredibly rich to 10 psi.) And ignition timing is very conservative. I can't think of a negative. (The earlier base map is a different story.)

 

The PFC forum has a FAQ.

 

Thanks a lot... again.. guys. I've spent prolly the last 12 hours straight reading up on this car and looking at things to do. I plan on getting a front mount IC first. I see a lot of people have installed the Apexi, any others???

 

Holy ****, well I guess that answers my question lol

 

There are lots of other things that need to be addressed before a FMIC. AST should be replaced with an aluminum one, inspect/replace vac lines with silicone, possible radiator upgrade to aluminum (stock one is old and plastic end tanks may crack), downpipe, if the car is new to you replace spark plugs, wires, fuel filter, oil, ect.

And before jumping right into a front mount, do a bit of reading on here first. I know your outside temps in Germany don't get too warm, but there are better options than FMIC's. A good stock-mount with proper ducting is a good setup or also the more expensive V-mount setups.

As far as you questioning the FD's stability 15-20mph past the 115mph governor, you will be more than ok. On stock suspension the FD has been proven stable to 160+mph, with your Ohlins setup you should be stable past what your speedo reads... And the motor will live all day at high revs. Beauty of a rotary. Remember the FD was designed as a purebred track car.

 

IMO, placing a bet on what base map you may or may not get is not a good one to make. I would only suggest a PFC knowing someone needs to make adjustments to it (whether that's the owner or a shop).

 

I don't disagree with your cautions on a PFC and the fact the OP apparently doesn't really need one. But IIRC, if you get the latter serial number prefix, you'll get the latter/better base map.

 

I realize that many consider the PFC's map to be some sort of get-the-car-running map that should only be run until the car is properly tuned. I wonder if this is a holdover from the experiences people had with the initial map, which had aggressive timing that could kill engines?

As I said, I ran with the mod map for about a year and carefully watched knock and AFRs and it worked very well. Yes, it was richer than I would like but not wildly so (low 10 AFRs under high boost - as with the stock ECU).

I see no reason why Apex'i could not produce a decent generic map for a mildly modded FD when, say, M2 and Pettit clearly have done successfully. There is no magic here.

I would put the PFC on a stock car for monitoring reasons alone. (And borrow a Datalogit for 10 minutes and you can have the fans come on at a decent temperature, and up oil injection a little.) Not to mention it cures any 3k rpm hesitation the car may have.