At what stage is ECU upgrade needed? - Zilvia.net Forums | Nissan 240SX (Silvia) and Z (Fairlady) Car Forum

90rps13 · 02-14-2005, 09:56 PM

I just got my sr20. Was wondering at what point is an ecu upgrade or other electronics needed. I'm about to do the swap and I also have a fmic, intake, fuel pump and catback going in. Do I need any computer upgrade at this point? I don't want to lean out the engine too much and blow it up. Thanks in advance, I already searched.

racer98 · 02-14-2005, 10:25 PM

Quote:

Originally Posted by 90rps13

I just got my sr20. Was wondering at what point is an ecu upgrade or other electronics needed. I'm about to do the swap and I also have a fmic, intake, fuel pump and catback going in. Do I need any computer upgrade at this point? I don't want to lean out the engine too much and blow it up. Thanks in advance, I already searched.

do the swap and hook it all up. once you get it running, once you feel its all good the swap and your wanting more power then at that point its a good time too consider an after market one for after mkt ecu or have some one re-tune your ecu.

ghostuss · 02-15-2005, 12:44 AM

Don't mess with ECU/management systems until you mess with fuel or if you raise boost above factory spec which ultimately you need more fuel anyways. And what you need to tune all depend on what you want to run. If it's not too much say below 300, a piggyback system such as Greddy E-manage can well handle it, of course don't forget bigger pump and injector. It's better to get ECU tuning done when you run even more boosts but it will cost you a lot more. And if you are serious and got a lot more money, standalone is the ultimate tuning devise you want to go after.

90rps13 · 02-16-2005, 05:27 PM

So as long as I don't higher boost, I don't need upgraded electronics? Even if I wanted to go with DP, test pipe, and 3" from Turbo all the way out through the exhaust? Wouldn't this cause idling to be off or is a Walboro all I need? Injectors too? Man, I sound like a newbie!!! But I need to know.
Thanks

g2ic02 · 02-22-2005, 05:57 PM

you will be fine with just the walbro.....i have full exhaust, intake, fmic and it runs just fine on stock boost....i would say that you could even get by on the stock fuel pump for a little while if it is in good working condition...i have been doing it for the last 8 months but it is in the mail now..

Campos · 02-22-2005, 06:15 PM

its always wise to have a ecu tune, even with the simple bolt-ons it will help optimize the power gained by them. also after a ecu tune you can go faster than that pussy ass 115mph nissan regulated us to. enthalpy is the best route, even over standalone.

sideviewcivic · 02-23-2005, 02:36 AM

if you think about it. ECU upgrade or having an ECU tuned can bump up more considerably. if not help with driveability of the car. such as the Nismo 270R. Nothing more then a S14 with boost turned up and a tuned ECU along with injectors and other items IIRC.

02-14-2005, 09:56 PM	#1
90rps13 Zilvia Junkie Join Date: Oct 2004 Location: Covina, CA Age: 49 Posts: 411 Trader Rating: (8) Feedback Score: 8 reviews	At what stage is ECU upgrade needed? I just got my sr20. Was wondering at what point is an ecu upgrade or other electronics needed. I'm about to do the swap and I also have a fmic, intake, fuel pump and catback going in. Do I need any computer upgrade at this point? I don't want to lean out the engine too much and blow it up. Thanks in advance, I already searched.

02-15-2005, 12:44 AM	#3
ghostuss Zilvia FREAK! Join Date: Jan 2004 Location: San Diego/San Francisco Age: 39 Posts: 1,337 Trader Rating: (0) Feedback Score: 0 reviews	Don't mess with ECU/management systems until you mess with fuel or if you raise boost above factory spec which ultimately you need more fuel anyways. And what you need to tune all depend on what you want to run. If it's not too much say below 300, a piggyback system such as Greddy E-manage can well handle it, of course don't forget bigger pump and injector. It's better to get ECU tuning done when you run even more boosts but it will cost you a lot more. And if you are serious and got a lot more money, standalone is the ultimate tuning devise you want to go after. __________________ 96 all suspension s14 SOLD 90 s13 coupe - SOLD Currently rocking 2002 BMW M3 w/ custom suspension. ButtonWillow, CA entire circuit drift/grip event by shock drifting spot for sale. Take over my spot for $150 only.

02-22-2005, 06:15 PM	#6
Campos Zilvia Addict Join Date: Jan 2005 Location: southeast tx Age: 41 Posts: 659 Trader Rating: (2) Feedback Score: 2 reviews	its always wise to have a ecu tune, even with the simple bolt-ons it will help optimize the power gained by them. also after a ecu tune you can go faster than that pussy ass 115mph nissan regulated us to. enthalpy is the best route, even over standalone. __________________ Parting out SR build....

02-16-2005, 05:27 PM	#4
90rps13 Zilvia Junkie Join Date: Oct 2004 Location: Covina, CA Age: 49 Posts: 411 Trader Rating: (8) Feedback Score: 8 reviews	So as long as I don't higher boost, I don't need upgraded electronics? Even if I wanted to go with DP, test pipe, and 3" from Turbo all the way out through the exhaust? Wouldn't this cause idling to be off or is a Walboro all I need? Injectors too? Man, I sound like a newbie!!! But I need to know. Thanks

02-22-2005, 05:57 PM	#5
g2ic02 Zilvia Junkie Join Date: Jul 2003 Location: minnesota Posts: 480 Trader Rating: (3) Feedback Score: 3 reviews	you will be fine with just the walbro.....i have full exhaust, intake, fmic and it runs just fine on stock boost....i would say that you could even get by on the stock fuel pump for a little while if it is in good working condition...i have been doing it for the last 8 months but it is in the mail now..

02-23-2005, 02:36 AM	#7
sideviewcivic BANNED Join Date: Jun 2003 Location: somewhere north of mexico Age: 40 Posts: 356 Trader Rating: (0) Feedback Score: 0 reviews	if you think about it. ECU upgrade or having an ECU tuned can bump up more considerably. if not help with driveability of the car. such as the Nismo 270R. Nothing more then a S14 with boost turned up and a tuned ECU along with injectors and other items IIRC.