95 SC 400 would like to eliminate the so called self adjust mode the computer has so it uses the more aggresive maps all the time and run more aggresive timing. What about firmer shifts at WOT. I ,m definitely intrested.

 

I'm telling you guys, check out the Apexi S-AFC, it works great and you can have many settings, unless and aftermarket ECU mod also adjusts timing your doing the same thing. If you want to adjust timing also, go with the Unorthodox cam gears or the Apexi computer for that also. REAL NICE!!!!


PS: I only have three aluminum heat shields left (at $75 delivered) and then I'm done and these are no longer available from me, only the fab shop on a special order basis of $125 apiece!.


http://www.mycrobyte.com/lexus/page3.html

You can work out the mode in the self learning ecu by driving 'normal' for a few hours, it will then relearn. I forget the exact times, will check the service manual soon.

 

'92 SC300, automatic.

 

933005spd ,


Please hold one of those heat shields for me. I can pay by check, MO, or Pay Pal. Just let me know, I can get you the $$ today. My e-mail is:


Keith.Rivera@dep.state.fl.us

 

I have a 400 How do you work around the self learning mode because it really pisses me off. One minute I am ripping off dragster like burnouts an hour later I can't get a chirp out of it with my foot to the floor trying to power brake it.

 

The ECU in the 400 pisses me the f**k OFF. I get the exact same thing, with it not being consistent. I bought the Apexi S-AFC a few hours ago and talked to a Lexus tech about tuning it. I'll post to that thread in a day or two when I get it on and DEFEAT THAT DAMN SELF-ADJUST MODE!!

 

The ECU in the 400 pisses me the f**k OFF. I get the exact same thing, with it not being consistent. I bought the Apexi S-AFC a few hours ago and talked to a Lexus tech about tuning it. I'll post to that thread in a day or two when I get it on and DEFEAT THAT DAMN SELF-ADJUST MODE!!

 

Keep me posted. What you should really try if you want bigger gains is the APEX i ITC timing computer to bump up the timing.

 

I'll be tuning my car up with Weapon-R (they're local), and I will let you guys know what's up with their stuff. Sounds VERY promising, they really know what to do with ECU adjustment.

 

now check yours, bro

 

What happened to Y2kGS? Hit me up man we need to chat. What the 411 on the SC products? I'll PM you or email you at the house.

 

MadMaxSC400 what exactly are they promising and how long before you have it done?

 

XX400 they're not really 'promising' anything.. I know what it can do for my car because I was sitting there playing Gran Turismo 3 most of the day while Seung (thanks for the effort dude) worked with my car's ECU wiring (it turns out they need a different schematic for my car). Later on in the afternoon the other guys were tuning Seung's car (2000 GS400) and I came out to look at the results. I don't know how much tuning had been done before today but I saw them pull 13 hp and about twice that in torque out of their settings before I left. Also, the power curve itself is a big improvement over stock in that it improves the power band... less bogging off the line. It's also smooth, if you look at the dyno charts from other ECU setups you'll see that their curve can be very erratic- which means that the motor isn't optimally tuned because the ECU is still screwing with the settings, taking longer for you to get out of that gear and onto the next. The power claim for the GS4 is 12-15 hp and 30 lb-ft of torque peak improvement over stock, and I saw that happen today. I have a different exhaust system on my car that includes a "crossover" style setup, so I'm hoping that will scavenge more from the motor. One thing I'm really anxious to see is a set of headers for the cars, because then I'll overhaul my exhaust again and see what can be gotten out of it. I think after that the only thing that could really be done is a supercharger.
However, I won't be back at DSR till next week, so I can only offer descriptions of the car's behavior till it's actually dyno'ed.

 

XX400 they're not really 'promising' anything.. I know what it can do for my car because I was sitting there playing Gran Turismo 3 most of the day while Seung (thanks for the effort dude) worked with my car's ECU wiring (it turns out they need a different schematic for my car). Later on in the afternoon the other guys were tuning Seung's car (2000 GS400) and I came out to look at the results. I don't know how much tuning had been done before today but I saw them pull 13 hp and about twice that in torque out of their settings before I left. Also, the power curve itself is a big improvement over stock in that it improves the power band... less bogging off the line. It's also smooth, if you look at the dyno charts from other ECU setups you'll see that their curve can be very erratic- which means that the motor isn't optimally tuned because the ECU is still screwing with the settings, taking longer for you to get out of that gear and onto the next. The power claim for the GS4 is 12-15 hp and 30 lb-ft of torque peak improvement over stock, and I saw that happen today. I have a different exhaust system on my car that includes a "crossover" style setup, so I'm hoping that will scavenge more from the motor. One thing I'm really anxious to see is a set of headers for the cars, because then I'll overhaul my exhaust again and see what can be gotten out of it. I think after that the only thing that could really be done is a supercharger.
However, I won't be back at DSR till next week, so I can only offer descriptions of the car's behavior till it's actually dyno'ed.

 

I built my own intake. Its not a pure cold air intake but I was able to install an K&N filter on it. If anybody wants to see some pictures please E-mail me at "itsme124@aol.com" and I will forward them to you. It is very obvious how I did it when you see the pictures. It took all of 2 hours to fabricate. I did put a small filter in the PVC valve to pervent blow by to the fuel injection unit.