Post by kai on Sept 18, 2020 11:46:50 GMT -8
Hi all.
New here so not sure if this is the right thing to do or right place to ask.
I’ve recently overhauled my 160i 4AFE 16v engine, and fitted new 40thou pistons. I’ve got the standard CAMs and Crank Shaft, however would like to know if there’s any tuning to be done due to the bigger pistons?
There’s a larger displacement and I figure the EFI system would need to be set in order for the O2 sensor to read correctly and the injectors to know how much more fuel is required to meet the displacement.
Also want to know if the change in displacement has anything to do with a fluctuating idle.
Few things to add:
Cone filter installed (Purchased the car with it)
Custom exhaust manifold (Purchased the car with it)
Original intake
Any assistance and feedback would be greatly appreciated.
Regards
New here so not sure if this is the right thing to do or right place to ask.
I’ve recently overhauled my 160i 4AFE 16v engine, and fitted new 40thou pistons. I’ve got the standard CAMs and Crank Shaft, however would like to know if there’s any tuning to be done due to the bigger pistons?
There’s a larger displacement and I figure the EFI system would need to be set in order for the O2 sensor to read correctly and the injectors to know how much more fuel is required to meet the displacement.
Also want to know if the change in displacement has anything to do with a fluctuating idle.
Few things to add:
Cone filter installed (Purchased the car with it)
Custom exhaust manifold (Purchased the car with it)
Original intake
Any assistance and feedback would be greatly appreciated.
Regards