Would like to hear your experiences with tuning the SD-only patch. Thanks!

 

I currently have it on 2 cars, Brent and Alpha X. Seems to work pretty flawless other than having to leave the MAF plugged in. Not the end of the world but it would be cleaner if it could go away. Hid it out of the airstream for the time being.

 

Sub'd!

More Info please....

 

I remember reading that Tephra said that the ECU seems to use the lower of the MAF vs MAP values. He said you could just put in really high MAF values then it would default to the MAP values. Did you do that or something else?

 

Hybrid SD here, just SD after ~120load, works flawless.

So not really a yes, but not a no

 

That's pretty cool

 

ima give this a shot on my X... currently on the MAF with no issues...

 

I ran it on a monster 2.0 build. I didn't like the leanness during spool / tip in. I went to a MAF at spool and MAP for everything else type tune.

 

ok, so its not the widespread adoption that I was guessing. I sure like the idea of not having to mess with two air metering systems, so I'm still curious about trying it out.

 

Always had MAP based tuning on my boosted Hondas, no problems. Much simpler than managing multiple tables and no worrying about the MAF maxing out.

 

I wonder if the Load Ramp Rate #1 fix addresses that.

Rich

 

I have mine set-up like Murlo, MAP only after 110 load.
The only downside is that it dumps fuel like crazy when you lift over 110 load. This is because load decays much slower with MAP than MAF.

 

I run my car in SD, have done for ages.
I tried aligning the MAP and MAF very closely aswell for a while. it really didn't run any better for all the effort it took! I just wanted to see if it helped with SST stuff.

but all the cars i tune, i do the same as some of the other guys - run the MAF up until the 100-140ish load area and then MAP from there.
Once on boost i'm always running MAP though.

 

You need the MAF to fuel it right. Then the MAP is fine. MAP only can be a pain to dial in the spool area.

 

I am running sd