Knight Sports or Apexi

[FTORich]

My car has a knight sports ECU fitted, but I know a man who can get me an Apexi ECU dirt cheap, is the apexi going to be much better or are they much of a muchness?

[ScuttleRX]

I\'d say you\'ll be better off with the apexi, its commonly used and all the tuners have experience of mapping them.

Not sure if anyone can map the knight sports...?

[alexb]

Ditch the Knight sports asap and get an ECU that can be mapped for UK fuel

[FTORich]

Guessing that means I won\'t have people wanting to buy the KS ecu then?

[alexb]

Probably not. As I remember they\'re fine on Jap fuel for limited (or specific) mods, but not a good idea here. Same goes for Re-Amemiya ECUs.

[Jit]

wasnt aware knight sports was mappable?

[A7NTY]

Bin the knightsports ECU . Fueling will probably be fine but the ignition will be way to advanced for UK fuel. Geff at RE:Worx has a draw full of Jap mapped ecu\'s so im afraid its really worth nothing unless you want to mix race fuel to get 102 octane

[FTORich]

I thought I read somewhere that Jap 102 wasn\'t the same as what we\'d call 102? and in fact a much lower octane?

[ScuttleRX]

I always thought Jap fuel was the same, I know US is different but that works the other way, they have lower numbers

[A7NTY]

I thought I read somewhere that Jap 102 wasn\'t the same as what we\'d call 102? and in fact a much lower octane?

Well if thats the case then the Japanese are fduking sh1t at mapping RX7\'s safely

Trust me their fuel is higher octane than ours.

[ITR]

Using a knighsports with low octane, could it result in bad idle too?