Well I've owned my PFC for like 8 months now. Didn't install it til now because I was told by someone that I can't go WOT on a streetported engine and an untuned PFC. Dale Clark encouraged me to go ahead and install it and the car should be fine. Well I was getting an O2 sensor and TPS CEL's from the stock ecu, so I replaced the O2 sensor this morning and I'll adjust the TPS after the car has warmed up. Can't wait to take her out for a drive tonight!

Oh yeah, since I was in the area, I added a wire for the fan mod.

 

NO NO NO!

It is fine for idle and cruise, even though it may not be optimum.
NO WAY BOOST until the maps are set up for your engine mods and properly AFR tuned!

 

Now I've heard that before, but is it for the streetport? Because from what I understand, the base map is for all the bolt ons(dp, cb, intake, ic).

 

Iblew my engine with a base map and streetport at redline & only 5lbs (OEM twin turbo's)! You should not go over 5k rpm's with a base & street port or risk a rebuild "gauranteed"!

 

I just can't see a streetport changing the VE *that* much where it would be a problem with the "base mod" map that comes with the newer PFC's. Hell, there's not even that much room on the FD ports to streetport as they're already big.

GoRacer, 5psi and a blown engine? I'm sorry, but something else was fundamentally wrong there.

Here's my take on it -

- The PFC is one HELL of a lot safer than the stock ECU.

- If you have something fundamentally wrong with your setup (shot fuel pump, plug wires hooked up wrong, sensors on the fritz, bad wiring, etc.) the PFC won't fix it, won't light a check engine light, and you could be in a bad way.

- Everyone's setup is different. For most people, the base mod map is fine for relatively low boost and common bolt-ons. On my car at 12psi, with intake/downpipe/highflow/catback, I'm plenty safe on AFR's with a low knock count.

- That said, it SHOULD BE OK, but only you know what you're comfortable with. If you feel iffy about the setup, do some testing and find out if you're safe - wideband, watch knock count, etc. You can always have it tuned, but hell, I've seen more than one "tuned car" that was worse off than with the base map.

Seeing his very light mods, I just don't see a streetport making *that* big of a difference. Streetports are typically a mild power bump that is more evident when you really open up the car (like non-sequential, full exhaust, etc.).

Dale

 

If it makes a difference my PFC is one of the new ones: FD3S4.

 

Dale, the PFC is NOT safer than the stock ECU. Even the base mod map is leaner than the stocker and has significantly more advanced timing.

Personally, I would think the base mod map would probably be OK on a streetported motor with a few bolt-ons (no midpipe) at 10 psi, but really, the timing should be bumped down a bit and fuel increased slightly.

 

I am applying safety as he does not know the PFC. He should not go blindly in high boost untill he has verified that all is setup properly. Does his injectors match
the setup, etc?????

We do not know all of his mods.

 

My mods:
CB, DP, PFS SMIC and intake, mild streetport. Else everything engine related is stock, fuel, cat ignition, etc.

Funny you show mention that the PFC is leaner. Where is it leaner in the maps? At idle, it actually seems a bit richer, maybe it's just me....

 

Well, I found a friend that has a datalogic and Rynberg sent me a modified map for me to use. I'll try to upload the map this weekend and see how it works out. Thanks Rynberg!

Do you have to relearn the idle after you load a new map?

 

BTW, I don't know if I would just load that map I gave you...it will be really rich for your mods under boost.... The timing should be nice and safe for you to use though.

 

Don't forget, I'm a total PFC noob. I examined the map you sent and made the assumption that I was supposed to use the ignition and injection maps. I haven't done anything yet. I just picked up my friends datalogic today, installed the software. Any suggestions on how to lightly lean out the fuel maps? Any idea what the included maps that comes with FC-Edit includes? I wonder if I can use your timing and then the fuel from the included maps, they're considerably leaner.

 

You need to load your map from the PFC and save it. This should be the default 5.07 map anyway, but.... Then you can change the timing settings to match what I sent you. Then save as "something else". Then write that to your PFC. Done.

 

Thanks, I'll do that asap!

 

Saved default map(ver 5.08) from the PFC, loaded the timing maps, adjusted the cooling fan settings. Uploaded and saved map. That was yesterday, finally got to go for a short drive today. There's a noticeable difference, seems a bit smoother, but didn't boost much at all. I'm still tempted to upload Rynberg's fuel map, better too rich than too lean...

 

To support Dale here, I installed my PFC in my rebuilt motor. I broke the motor in for 2500 miles before getting on the trottle. I had the basemap at the time, I also had a wideband.

My AFR's were all good until about 6500-ish, then it would start to lean out a bit more then I liked.( it was pushing past 12.2 -12.3...) for a fresh motor I like seeing 11's all around. So as rich as it is I pulled the timing a bit in the lean spot and upped the fuel a little too. This got me back into the 11's area.

The base map is not as bad as everyone says... Though you never know even if bought ' new' people can re-swrink wrap things that look pretty. Could have been some of them had moded maps on there.

Edit: Unfortunately I can't recall off the top of my head on which version I have.

 

Thanks, actually since I've loaded Rynberg's ignition maps the car has run fine, alot smoother than before. But I'm still going to upload his "overly rich" fuel maps this week and see how the car does. Better a bit too rich than lean, right?

 

I broke in my streetport with 10:1s across the board. Quite unbelieveably steady 10s too when logging my wideband it was totally flat under throttle, this was with a tuned map. My car has 850cc primaries and 1300cc secondaries would my map help him at all with stock injectors? I know below ~3000 my map will be lean for him since my 850s literally wont go leaner than 11:1 at idle but I could richen that area up with the basemap of that area.