yeah for sure...ii know the japanese are not into drag racing.....so i am sure that was the last thing on there mind when they wew engineering the power fc

 

I played with the speed a bit. No matter how high I turned it up, it seemed that it would only build to about 0.7 Bar. Once it hit that, it would compressor surge and chug slightly. The higher RPM would be a benifit if you were looking to induce wheelspin, but I found the 3,000 - 3,500 range to be more than enough to eliminate the lag / bog so common when trying to launch these cars, and that was with no slipping or riding of the clutch.

The fuel is cut via the EFI resistor pack that sits on the fire wall. Spark was cut via the ECU. The unit shunts the crank angle sensor input to the ECU to ground, making the ECU tell the rest of the car to turn off spark.

 

The unit only goes active when you have the clutch on the floor and you are feeding the car fuel (go pedal). I can drive around all day just like normal, going to redline in every gear, speed matching RPM's on gear changes, etc. and this thing will not even make the car so much as a hiccup. All you have to do is let the car idle / drive it slow for the first 10 to 15 minutes after install. The ECU needs to relearn - since you had it unplugged during the install - and one of the things it needs to learn is the new length of the wire that is ran for the fuel injector's power feed. You see, this unit intercepts the signal used to turn on and off the fuel injectors and then alters it as needed. It goes "in-line" with the fuel injector's power supply. That might sound crazy, but that is the same way the S-ACF alters your air/fuel ratio...But it intercepts the signal from the MAS, not the fuel injectors.

 

hey .....pics of the installll?

 

The car's dirty right now. I was about to go wash it. You want to wait until i get it looking better or see them now in all its filthy glory?

 

Well I have a Power FC, it goes into Idle learning mode everytime it idles...surely it would be the same as the stock ECU as for functionality. I would definately like to see pics.

 

Well, I just got done washing her. Now she's drying and then I'll be applying a coat of wax and cleaning out the interior. Looks like the first batch of pics will be nighttime shots.

 

Hey how about between shifting, gas pedal remains to the floor correct?

 

Yes, you CAN do this, however you MUST adjust your clutch position switch before you use this feature. This is the factory switch that prevents you from starting the car without the clutch on the floor. You will need to adjust it so that it actuates with less pedal travel. In other words, the factory set position for this switch is to toggle after the clutch has been fully depressed. If you leave it set like this, you will be full power, at redline, and press in the clutch, then you will free spin (beyond redline) because you have not actuated this switch yet but the clutch has disengaged the transmission. There is even a warning about this in the instalation brochure that they include with the Flat Shift.

 

Ok, here are the pictures that I took of the unit.

In these first four pics, you can see where I mounted the unit and how small it really is....

 

Now, in these pics, you can see the difference between revving to a preset RPM manually and doing the same with the Flat Shift. The first pic was taken with the car in neutral and the clutch pedal extended. Notice the boost (top gauge on the windshield) is still pulling tons of vacuum. In the second pic, you can see that with the clutch depressed, the Flat Shift becomes active and boost pressure builds up. I said 0.7 Bar earlier, but in this pic, I snapped it when it was near 0.5 Bar. Oh well, you get the idea.

 

Here's the last pic. This is what the Flat Shift looks like when it is active. The 2 LED's on the front of it flash on whenever the unit is cutting fuel and spark.

Notice that on the S-AFC 2 right above it shows the RPM's are at around 3900. This is part of the stutter feature. My preset is at 3,500 and it blips between around 3400 and 4000.

Hope these pics help. Any commemts or questions?

I'll do an install thread later on and post it in the "How-To" section.

 

Just for clarification, this is NOT a Line Lock.

A line lock holds the front brakes while leaving the rear free to spin. This is used in drag racing for burnouts.

A transbrake hold the transmission from sending power to the wheels while allowing the driver to floor the throttle.

A two step/three step holds RPMS to a preset level. If this is close to any of these, it is this.

Just wanted to clarify so we Ricers don't go calling stuff what it's not and looking dumb around the people who know what they are talking about. That just makes us lose credibility.

 

One of my friends, who drives a 2004 Cobra with 440 whp and 500 wtq was the one who called it Line Lock.

This is from Yahoo Messenger:

ninezerogsx_zerothreeevo (7:13:25 PM): with the lanch control, you can program in two set limits...
ninezerogsx_zerothreeevo (7:13:29 PM): what kind of limits...wellll
mustang_racer (7:14:32 PM): like a progressive thingy?
ninezerogsx_zerothreeevo (7:16:35 PM): ok..you pull up to the staging line,.....push in the clutch, put it in first...then floor it...i mean...FLOOR IT...the car bounces off a rev limiter that you preset....say 3000 rpm....now, dump the clutch and take off, the car goes up to redline...now you are where you can use the SECOND limit it uses....so when you change gears, keep the gas on the FLOOR and push the clutch in...rpm's drop to say.....4000...then you let the clutch out in the next gear and you are off again....same goes for all shifts......imagine the time you save on shifts, not having to get off the throttle...imagine the power my car would have...while it sits at 3000 rpm, bouncing between 2900 and 3100 rpm, it is building boost, instead of sitting at like 25in/hg of vacuum on takeoff...
ninezerogsx_zerothreeevo (7:16:36 PM):
mustang_racer (7:17:39 PM): yea we have that on our mustangs its called line lock.
ninezerogsx_zerothreeevo (7:17:45 PM): yeah, same as line lock
ninezerogsx_zerothreeevo (7:17:51 PM): aka stutterbox
mustang_racer (7:17:54 PM): yea
ninezerogsx_zerothreeevo (7:17:55 PM): aka flat shift
mustang_racer (7:18:02 PM): aka snapped axles


Just because someone drives a domestic does NOT mean that he knows what he is talking about. Thanks, though.

 

90GSX-03EVO, dude thanks so much, this is an awesome option for those of us that don't want to go exede or standalone. Will absolutely be my next mod. Think you could post up a how-to for us since you're the first to use it?

edit: Ultimate-Racing can you give us a price including shipping to the states? Anyone else stock this item that is in the US?

edit2: Wow t-sport advertises that the price for the flat shift should be around $150 including shipping. Anyone have it for this price?