Difference between revisions of "Advanced ignition timing"
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Latest revision as of 16:34, 8 July 2018
Introduction
Advancing timing can increase low rpm power which is where most ecodrivers spend their time driving. This can lead to improved BSFC at those rpms. You must be careful not to advance too far as you could encounter engine ping, which could lead to damage (assuming the engine does not have a knock sensor).
Contents
Instructions for mod
There are several ways to perform this modification but to safely perform this modification it is a must to have some means of scanning. Without the ability to scan for Knock Retard (KR) one risks pinging and damaging the engine.
To perform this modification the correct way on Electronic Fuel Injected (EFI) vehicles you will need to look for a program that will allow you to calibrate/flash/burn the cars computer. Different vehicles require different means to do this based on the architecture of the hardware. Some tuning programs to look into are: HPtuner, EFI live and, TunerCats.
On older vehicles with a distributer a timing light can be used to advance timing.
In any case when increasing timing only increase it ONE degree at a time and then scan for KR with the car fully warmed up, if KR is detected reduce the timing by TWO degrees or to stock. On EFI vehicles timing can be increased/reduced in individual calls based on RPM and Load.
More information required: How do people perform this modification, pictures, problems, what to look out for
Information required: A listing for different ways to do this if its different on different types of cars
User experiences
Please enter your user name and any relevant data in the table
User Name | Car Make, Model, Year | Cost of Mod | Time to Perform Mod | MPG Before Mod | MPG After Mod | MPG improvement guess | Instruction Link |
---|---|---|---|---|---|---|---|
Example Data Saand | Example Data Mazda, 626, 1991 | Example Data $5 USD | Example Data 1 Hour | Example Data 27.2 | Example Data 29.8 | User mod detail or measurement detailed data |
Problems / Consequences of mod
- Engine troubles, pinging, poor engine control if mod is done incorrectly