ECU engine (re)maps
Discussion
My car has a 2.0 16V n/a engine, with (as I understand it) mechanical fuel injection (9A).
From what I have managed to read up on the web, this means any reprogramming of the ECU on a standard car will have (at best) minimal effect.
Now, the point is my car is no longer standard. It has had a complete exhaust overhaul from the manifold through to the tailpipe. The air feed has also been modified to draw (cold) air from the lower grille.
I am very happy with the results this work has had on my cars performance and without changing cars/engines (not financially viable), the option of a remap is about last thing I could resaonably do.
So, given the non-standard nature of the car running on a standard ECU, is there any point to a remap?
I have had conflicting opinions from several different sources and would welcome some sensible advice.
Just as an aside, this is not about getting a pretty bhp printout, it's about making the best use of the power available. My engine no longer has a cold, does the brain need to be told this? :confused:
From what I have managed to read up on the web, this means any reprogramming of the ECU on a standard car will have (at best) minimal effect.
Now, the point is my car is no longer standard. It has had a complete exhaust overhaul from the manifold through to the tailpipe. The air feed has also been modified to draw (cold) air from the lower grille.
I am very happy with the results this work has had on my cars performance and without changing cars/engines (not financially viable), the option of a remap is about last thing I could resaonably do.
So, given the non-standard nature of the car running on a standard ECU, is there any point to a remap?
I have had conflicting opinions from several different sources and would welcome some sensible advice.
Just as an aside, this is not about getting a pretty bhp printout, it's about making the best use of the power available. My engine no longer has a cold, does the brain need to be told this? :confused:
OK
1st off what engine / what car? If it is mechanical injection then I suspect it'll be the K-jetronic system which will not need any mods to cope with the relativly minor mods you've made as the exhaust will reduce backpressure so reducing pumping losses on the engine and although it will allow the overall airflow through the engein to increase in practice this will only be in the region of 3-5% which will be well within the range of the std airflow meter.
The same goes for the cold air pickup as ram effect only addds 1% ish over 100Mph and the reduction in air temp wil result in denser air therfore more fuel required but again well within the capability of the std airflow meter
Matt
1st off what engine / what car? If it is mechanical injection then I suspect it'll be the K-jetronic system which will not need any mods to cope with the relativly minor mods you've made as the exhaust will reduce backpressure so reducing pumping losses on the engine and although it will allow the overall airflow through the engein to increase in practice this will only be in the region of 3-5% which will be well within the range of the std airflow meter.
The same goes for the cold air pickup as ram effect only addds 1% ish over 100Mph and the reduction in air temp wil result in denser air therfore more fuel required but again well within the capability of the std airflow meter
Matt
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