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What is your car final speed with the stock ecu?
Please write the ecu number to see the differences between the ecus.
Also the number of engine and the horsepower.

ecu: 37820P3XG01
engine: D14A3
horsepower: 90
final speed: 177-180 km

How is the stock ecu related to top speed?

saxophonias wrote:How is the stock ecu related to top speed?

If the ecu versions are different might be other final speed for every car.
As has written in our site that all the ej9 has the same transmission- differential then if they are differences it will be from ecu.

I do not think that comparison. cars for 10 years. There are many factors that affect it. say when my resonator burned, I put recombiner (empty wide pipe, did not know the name), I felt the difference. I cleaned the injector, I felt the difference. Even when I pour 95, instead of 92, I also feel the difference.
my ECU P3Y, I clocked up to 155km, was greater and more terrible, the roads are bad.

the only difference would be to have speed limiter at 180km/h or 200 like the jdm versions or some eudm nissans.

The type of ecu and the final speed maybe was wrong thought, if you want you can erase this thread.
No problem.

A what the...

D14A3
Original P3X
75 hp
170 on the dials, real real real top speed limited by the drag of the car and engine power. Really topped out with stock rims etc. stock suspension, everything bone stock.

saxophonias wrote:the only difference would be to have speed limiter at 180km/h or 200 like the jdm versions or some eudm nissans.

The speed limiter is set by the ECU though no? So different ECU's may have different limits. Although top speed isnt really important unless you want to get lots of speeding tickets

in eudm civics there is no speed limiter by the ecu