HT Stage 1 Kit: ECU Question - Zilvia.net Forums | Nissan 240SX (Silvia) and Z (Fairlady) Car Forum

SX_Drifter · 11-09-2003, 01:59 PM

Heavy Throttle offers a Stage 1 kit for the SR20DET seen here.

It comes with 550cc injectors and a z32 maf along with a big t28. It's run by a custom tuned JWT ECU. Now my problem is the ECU if I change the set up I need to get the ECU reprogrammed.

So I ask with this Stage 1 kit and all it's supporting mods (3" down pipe, test pipe and exhaust, fmic, bov, fuel pump, metal head gasket, turbo extention and a koyo rad and fan kit.) is there any ECU I can run to control this that won't have to be reprogrammed if I change something.

BTW, the car is an s13 240sx.

HiPSI · 11-09-2003, 03:01 PM

generally the only time you have to have an ECU reprogrammed is a change in injector size or other electrical based componentry like the MAF or a change in fuel octane. basic mechanical changes won't have a need to reprogram the ECU again because all of your sensors and the ECU will account for any changes. major mechanical upgrades such as a raised/lowered compression motor or huge turbo could also need a retune, but not likely depending on how much of a change you made.

SX_Drifter · 11-09-2003, 05:27 PM

What if I want to add one of those Intercooler CO2 sparyers or even some N2O will I need to reprogram the ecu?

Steeles · 11-10-2003, 07:39 AM

Quote:

Originally posted by SX_Drifter
What if I want to add one of those Intercooler CO2 sparyers or even some N2O will I need to reprogram the ecu?

those constitute mechanical changes. so no. MAYBE the nitrous(not the IC sprayer). but if you know what your doing with it you shouldnt HAVE too. JWT programs um pretty rich anyway. and you can always have them redo it.. or Get a Apex'i Power FC and do it yourself.

11-09-2003, 01:59 PM	#1
SX_Drifter Join Date: Feb 2003 Location: Ontario, Canada Age: 40 Posts: 39 Trader Rating: (0) Feedback Score: 0 reviews	HT Stage 1 Kit: ECU Question Heavy Throttle offers a Stage 1 kit for the SR20DET seen here. It comes with 550cc injectors and a z32 maf along with a big t28. It's run by a custom tuned JWT ECU. Now my problem is the ECU if I change the set up I need to get the ECU reprogrammed. So I ask with this Stage 1 kit and all it's supporting mods (3" down pipe, test pipe and exhaust, fmic, bov, fuel pump, metal head gasket, turbo extention and a koyo rad and fan kit.) is there any ECU I can run to control this that won't have to be reprogrammed if I change something. BTW, the car is an s13 240sx. __________________ Anthony S14 Coupe SHIFT_Inspiration

11-09-2003, 03:01 PM	#2
HiPSI Zilvia Junkie Join Date: Oct 2003 Location: Buford, GA Posts: 522 Trader Rating: (0) Feedback Score: 0 reviews	generally the only time you have to have an ECU reprogrammed is a change in injector size or other electrical based componentry like the MAF or a change in fuel octane. basic mechanical changes won't have a need to reprogram the ECU again because all of your sensors and the ECU will account for any changes. major mechanical upgrades such as a raised/lowered compression motor or huge turbo could also need a retune, but not likely depending on how much of a change you made. __________________ SR motor set/clip $2500+, FMIC kit $700+, Downpipe $100+, 3" exhaust $500+, Misc install parts $100+, Shop labor for install $1000+ and you still only make 220rwhp for $5000 so what's so CHEAP about the SR swap again?

11-09-2003, 05:27 PM	#3
SX_Drifter Join Date: Feb 2003 Location: Ontario, Canada Age: 40 Posts: 39 Trader Rating: (0) Feedback Score: 0 reviews	What if I want to add one of those Intercooler CO2 sparyers or even some N2O will I need to reprogram the ecu? __________________ Anthony S14 Coupe SHIFT_Inspiration