broke1 said:Make sure you also have DFI.No way in hell are you going to be able to trick the stock ecm when the clutch goes in.
BJM said:I cannot think of a single problem that the ECM would cause. You will be in and out of PE mode during each shift since your foot comes off the throttle. I would be inclined to put the blow off valve exhaust blast back into the MAF pipe or the lost air will result in the car running very rich while the blow off is venting. Most factory set ups do this. Otherwise the MAF reading will be high yet you are spilling off much of the air.
As far as PE mode is concerned, since our ECMs tend to be set for a fairly high threshold, you might need to change PE mode trigger points down a little to prevent the occasional knock as you get back into the gas and the mixture is briefly at stoich. One example is the Extender chip whose PE threshold is very low already.
Another issue with the factory LC2 is that the MAF is so far from the throttle body. If you are using a newer MAF with a translator and have the MAF right on the end of the throttle body you will wake up the driveability tremendously. There are several guys on here running like that all the time and it works really well. Just don't do what one guy did and explode the factory plastic MAF!
I do not understand your statement. While I believe someone might not like how it drives, what could the transmission weight possibly matter.broke1 said:The factory ecm was never meant to handle a manual app(30 lbs off the back of the engine)
Do a search,gnvair has done the swap and swears its a waste of time.I beleive him...
UNGN said:There are a bunch of drawbacks to this swap if you sit down and think about it logically.
1.) The Power band on our motors suck. If you put a larger than stock turbo on it, it won't spool until 3K, but if the motor is stock it runs out of steam a 5K. Port the heads and you'll only get another 800 RPM out of it before you endanger the crank. It aint no Supra.
UNGN said:2.) Our bottom ends are spindly axially and not up to the task of the force of a clutch that can clamp 600 lbft of torque. Again... Stage II.