OFT v2.06 Non-Beta

[JB86'd]

I'm in Socal running Shell 91 oct. 10% ethanol fuel. After tons of data logging with various fuels and revising tunes to try and eliminate knock, I've finally come to my final revison, and I've been running it for about 60 miles so far with IAM staying at 1.

I have pretty limited tuning knowledge but I've done a lot of reading per @steve99 and other resources here.

My question is, with pulling this much timing are there any repercussions as far as AFR or other parameters that I need to take into account?
Also, how much power am I sacrificing here?

This is my IAT timing compensation, and my Base Timing B COMPARED to the original B01C timing.

version 2.06 Stg 1 91 oct.

[steve99]

Originally Posted by JB86'd

I'm in Socal running Shell 91 oct. 10% ethanol fuel. After tons of data logging with various fuels and revising tunes to try and eliminate knock, I've finally come to my final revison, and I've been running it for about 60 miles so far with IAM staying at 1.

I have pretty limited tuning knowledge but I've done a lot of reading per @steve99 and other resources here.

My question is, with pulling this much timing are there any repercussions as far as AFR or other parameters that I need to take into account?
Also, how much power am I sacrificing here?

This is my IAT timing compensation, and my Base Timing B COMPARED to the original B01C timing.

version 2.06 Stg 1 91 oct.

Attachment 97186

The only way tou would find the exact hp loss is on a dyno,

However a couple of degrees timing as probably only worth 2 or 3 hp.

also the ecu was going to pull the timing anyway using stored flkc and its generally more aggressive pulling timing than if you adjist your map to match your fuel, and once ecu starts using the iam to reduce timing due fbkc\ flkc your loosing timing overcthe entirecrpm range.

by doing what you have done you are running thecmax timing possible forcthe fuel available to you and you will have a smoother drive with morexpower than if you let the ecu manage the timing correction asxthe ecu wouldxhave removed more timing than what you have donecto manage the knock.