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Originally Posted by sujaylahiri  Anyway you can prove that? (Links, documents etc?)
I'm asking because the same engine is used in North America with a slightly different compression ratio and ECU setting and it only produces about an extra 5-6 horsepower and torque.
A 25 bhp gain in stock tune sounds improbable to me. I know guys who have an AEM Cold Air Intake, a performance header system and a cat-back exhaust installed and have remapped the ECU as well and have only managed to gain upto 15 bhp. |
I had read an article in one of the Mags, where they had tested the pre production cars. I will search the article scan it and post it.
By the way the US spec cars are usually tuned keeping the pollution norms in mind.
The compression ratio, intake design and cam profile is included in the detuning process , not just ECU tuning.
I do not know what your friend wants from the engine, but if more power in needed, than get the JDM spec Intake manifold, injectors, pistons [compression ratio] and cams, the gains will be more and not just 5 -6 bhp. As you mentioned.