Rover v8 ignition timing

Rover v8 ignition timing

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Discussion

gacksen

Original Poster:

680 posts

144 months

Tuesday 25th August 2015
quotequote all
Hi there,

just recently upgraded my standard RV8 plenum to a custom made twin 2x 55 jenvey plenum that we have
fabbed up. engine is a 4.6 JE unit with different cams, heads, canems ecu and decat.



this is my current spark table :



as the engine gets more air now and the AFR gauge went from high 12s to mid 13s on WOT
gave it a little bit more fuel to bring it down to the high 12sx again.

question is now leave the ignition or further advance it to 29 or 30 or go down to 27 or 26 on WOT ?