S12 fuelling

[ScoupeS12]

I have a mk2 S12 with no lambda control on the ECU (I gather some did some didn't?)

Tuning wise, what limits do I have to the fuelling?

And secondly I have an old A'Pexi AFC (not the newer SAFC)...could that be of any help going further on the standard ECU? Or would it be easier to go for something like Nis-tune?

Cheers.

[northerner]

we never got any Lambda fitted S12's in the UK. I've heard of a few peeps fitting a Safc

[ScoupeS12]

Oh ok, my misunderstanding of reading the internet (as per usual!)

So from that point of view, there can't be a great deal of gain to get fuelling wise with the standard management then?

Might have to look at a go to something better when I start meddling under the bonnet!

Cheers guys

[northerner]

Goes to the DET would be better as their ECU's can be chipped

[umpkin]

i think 30psi had 234bhp on std fueling, although he had forgies and such likes.

[CamInHead]

I've always unerstood stock fuel map is fine for ~200bhp ?

[s13eater]

Originally Posted by umpkin

i think 30psi had 234bhp on std fueling, although he had forgies and such likes.

yeah, i think that was with the t3, i had 227bhp on std ecu with t25 with forgies, thats before the omex.