stage 2+ cone filters and maf

[cwspellowe]

The whole point is to get a bigger range from the sensor, if we're sticking to mafs then i'd expect it to have to come off something with at least another litre of capacity over ours, just to account for the substantial increase in airflow. Any sensor changes will need mapping in, otherwise the map calibrations and parameters will be miles out and we won't be able to take advantage of the expanded range.

Stick to your XUDs piggy, no sodding sensors to argue with there!

Exactly, fitting the sensor won't make any immediate improvement to the engine map, but the range of stock values means they can be used to tune engines above and beyond the normal stage 2.

It's like blown petrol motors using upgraded MAP sensors. If the engine tune is held back by stock sensor, the sensor needs to be replaced with one capable of giving the ECU values it can use.

For instance, a 2.0 MAP sensor can read x-y values, a 2.5 one could maybe read x-z, with z being a bigger reading than y. If you have a car tuned for higher manifold pressure than the 2.0 sensor can read properly, ie. higher than y, the 2.5 sensor is better for the application as long as pressure doesn't exceed z.

Slightly different sensor in question but the idea's the same.