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Upgrade Ecu Or Not?

Everlong-S13

By Everlong-S13,
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Everlong-S13 Community Regular

Everlong-S13

Posted
Posted

Hey all,

I've done a forum search but didn't really get a definite answer.

Basically, I've got a 98 R34 GTT with base level mods: Pod filter, exhaust, FMIC and boost increase to 12psi (stock turbo).

I'm still running the stock ECU. Is it necessary to upgrade the ECU for such base level mods to get the best performance, or possible to retune the stock one?

I do not plan to upgrade the car any more.

Much appreciated.

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KiwiRS4T Grand Master

KiwiRS4T

Posted
Posted

The definite answer is yes. I guess its running now and RBs generally run quite rich from stock so its probably ok but if you want to be safe stick it on a dyno and get the timing and afrs checked.

But to get optimum performance from what you have you will need some tunability and best bang for buck is Nistune.

mad082 Grand Master

mad082

Posted
Posted

as above, yes you will gain power, and a bit of economy too, from a tune. it isn't NEEDED though. and yeah, a nistune is the nest bang for your buck ecu you can get for your mods. pretty much any other ecu with as much tunability (or more) will cost you about twice as much.

tonka_18 Collaborator

tonka_18

Posted
Posted

Hey all,

I've done a forum search but didn't really get a definite answer.

Basically, I've got a 98 R34 GTT with base level mods: Pod filter, exhaust, FMIC and boost increase to 12psi (stock turbo).

I'm still running the stock ECU. Is it necessary to upgrade the ECU for such base level mods to get the best performance, or possible to retune the stock one?

I do not plan to upgrade the car any more.

Much appreciated.

Did you find much increase in power and response with these mods compared to standard?

mad082 Grand Master

mad082

Posted
Posted

Without a tune, the increase will be relatively minimal

that's not true. you will get bigger gains from bolt on mods than from a tune alone. you will gain 10 to 20kw from a tune if you have a turbo back exhaust, fmic and the boost raised to about 12psi. you will gain about 30 to 40kw from the bolt on mods.

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