Thread: Strange AirFuel plot on stock SR20DE

Last weekend we strapped my car to the dyno. I needed a baserun to know what is available and we tested a few things to find 'hidden' potential.

Actually I am very surprised about that dyno plot! Can anyone tell me what is wrong with my engine - or is that a 'normal' stock ECU behaviour?



Btw. 3 or 4 runs were made with the exact same result!

Thanks!

Martin

I would say that is normal, look at how Nissans CG10 engine performs with stock ECU


One more reason to upgrade to a tuneable ECU

That huge drop between 2800 and 3500 is a heavy load area and looks to be tip in (normal plot)
That spike after 3800 is for emissions control me thinks.

Plot looks normal to me