Just got back from the Dyno...
Thread Starter
Le Mans Master
Joined: Jun 2006
Posts: 6,979
Likes: 31
From: Wichita KS
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Thread Starter
Le Mans Master
Joined: Jun 2006
Posts: 6,979
Likes: 31
From: Wichita KS
All depends on what the A/F ratio is now. If its still real rich, like they come from GM, then you still have a chunk left. If its close to 12.8:1, theres not much to be gained from a tune.The correction factor is set to standard. It should be set to SAE. You'll loose about 7 or 8 HP on SAE, but it is a true-er number. Sorry......
Melting Slicks
Joined: Jul 2006
Posts: 3,356
Likes: 1
From: Chesapeake Va
The CF up in the right hand corner. Stands for correction factor. There's 5 different ones, I believe. SAE is the most conservative. Stands for Society of Automotive Engineers.
Dont exactly know how they come up with the different CFs, but I do know that SAE is the most conservative. We use CF:SAE and set the smoothing on 5. MOST dynojet operators use SAE. Some use standard, just cause it shows a little better.
Your fuel looks a little leaner than a normal factory tune. They are usually dead on 11.3:1 or there abouts. Yours being a little over 12:1 is some of the power increase. The intake and supporting mods have thrown the MAF off a little bit. No biggy. A little more tweaking and get it close to 13:1 and you'll see some improvements. 5,8, maybe 10 hp
Dont exactly know how they come up with the different CFs, but I do know that SAE is the most conservative. We use CF:SAE and set the smoothing on 5. MOST dynojet operators use SAE. Some use standard, just cause it shows a little better.
Your fuel looks a little leaner than a normal factory tune. They are usually dead on 11.3:1 or there abouts. Yours being a little over 12:1 is some of the power increase. The intake and supporting mods have thrown the MAF off a little bit. No biggy. A little more tweaking and get it close to 13:1 and you'll see some improvements. 5,8, maybe 10 hp
