Why Racechip doesn't want to present clear information is beyond me. Hopefully this quick summarization will help everyone.
87 Octane Fuel
Please DO NOT Use
91 Octane Fuel
93-98 Octane Fuel
87 Octane Fuel
Please DO NOT Use
91 Octane Fuel
- Sport Mode - Mapping 5 (Max)
- Gap 0.024-0.028 will improve performance and security (from stock 0.034-0.036).
- If you have 91 octane, you can't get the full power potential without replacing or re-gapping your spark plugs.
- Get a RaceChip RS or GTS, which do not unleash the full power potential.
- Or get the GTS Black and use Mapping 5.
93-98 Octane Fuel
- Race Mode - Mapping 6 or Mapping 7.
- With 93 octane fuel, you can use every mode.
- According to present knowledge, regapping the stock plugs helps to prevent the misfire.
- According to present knowledge, I have not heard of any issues (with or without chip) with 93 octane with Kia Stinger spark plugs in stock condition.
Apparently, I am not capable of communicating clearly enough. I guess, a native American English speaker would do this much better. This is one of the reasons why we will open an office in California and hire Americans. We are currently searching for a Sales & Marketing Representative a Technical Support Specialist and will soon search for Admin & Customer Support Assistant.
More information: RaceChip USA Jobs
Feel free to share these job postings or apply at jobs@racechip.com
So, back to the fuel and spark plug recommendations. According to present knowledge, I suggest following:
In General:
Kia Stinger spark plugs have quality issues. Some already in stock condition.
Thus, it is recommended to re-gap or change the plugs. Gap 0.024-0.028 will improve performance and security (from stock 0.034-0.036).
This is no must for operating a RaceChip, but it is beneficial
Thus, it is recommended to re-gap or change the plugs. Gap 0.024-0.028 will improve performance and security (from stock 0.034-0.036).
This is no must for operating a RaceChip, but it is beneficial
87 Octane Fuel
Please DO NOT use. Not with RaceChip and also not in stock condition.
91 Octane Fuel
Please choose one of the following possibilities:
- Re-gap or replace your spark plugs:
This improves security and performance. You can now drive in all modes (or mappings).
In rare cases the highest mode might be too aggressive for 91 octane (the engine just does not run as smooth as it should). In this case, please lower the mapping. - NOT re-gap or replace the spark plug:
- Use only low mappings of the GTS Black
Please DO NOT use the Race mode (if you don't have the app, please DO NOT use mapping 6 or 7).
The maximum mode is Sport (or 5). - Buy the RaceChip RS
The RS adds less boost and less power. You can use it in all modes.
- Use only low mappings of the GTS Black
93-98 Octane Fuel
You can use all modes/mappings.
Re-gapping is no must.
Re-gapping is no must.
According to present knowledge, I have not heard of issues (with or without chip) with 93 octane with Kia Stinger spark plugs in stock condition. However, I am not omniscient. Though, I know that there never has been an issue with a RaceChip in combination with 93 octane.
There also has not been any issue with RaceChip used with a maximum mode of 5 or Sport in combination with 91 octane.
Please be aware of following:
There have been issues with cars in stock condition, too.
This means, it is a matter of time that there will be another spark plug issue with a RaceChip installed, because a certain percentage of Kias will just have it. As far as I know, Kia replaces the spark plugs hassle-free.
Once again, you will benefit from re-gapping or replacing your spark plugs in terms of performance and security.