http://www.efidynotuning.com/pre.htm
Updated to include info on compression ratio
Also not noted is some details for the 03/04 cobras. Since I get asked ALOT about what plugs I recommend for them.
TR6 # 4177
boost / gap
20lbs / 0.021-0.023
30lbs / 0.016-0.018
8lbs / 0.032
Change them every 6 months and don't use iridium.
[Pre Tune Info Write Up]
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decipha
- Posts: 6471
- Joined: 2021 Feb 15, 12:23
- Location: Metairie, LA
- Vehicle Information: Work Truck
'25 F-150 5L