Road tune

bleunetizen

Thanks for the posts, nice to see some positive response to my thread.. haha

I agree that dyno is really required for timing adjustment but I thought the MAF would go higher as the power goes up too, although it would be very tiny amount. this method worked well when I was tuning my old 350z's cam timing with aftermarket cams.. but then the fluctuation is too wide to pickup tiny gains.

have you guys had much play with the VHR timing correction unlocked by uprev few months ago? Apparently 370z's got very sensitive and complicated knock control method and I was wondering if it would be safe to increase the entire rev range by 3degree's and let the ecu just self learn from there.. I dont think NA engines can explode that easily? haha

Mitco39

The hard thing about that is your probably going to go past your MBT before you encounter knock, especially if you are running good fuel.

Thats what makes it hard to road test especially a engine running good fuel that wont knock before MBT, there is no real indication you pasted MBT unless you can monitor the power output. If you go past MBT then that power loss is going straight to your rods, pistons, and head gaskets all the while being unannounced to you.

When your boosted or running bad fuel then a set of knock headphones will be adequate as your going to knock well before MBT anyways so there is no threat of running the timing to aggressive with respect to MBT.

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