ECS Speed Density tune
 

Last week ECS did a Speed Density Tune for my car (see sig for mods) and all I can say is WOW the car is great.

The car runs almost like stock now. No weird searching for the proper idle, no problems with hot starts, no surging under 1500 rpms. All in all the car is more streetable.

I now wait to see how it does at the track. I really didn't have too many issues with the old tune so I am thinking the new tune will not make much difference on the track because we are never in that low of an rpm zone, but since the car is easier to drive now I can only think that it will be smoother on the track.

Limerock is the next event so we will see.

As a small bonus though I was not looking for more hp and tq I did pick up some more. Some of the gain (I guess 5 or 6) is do to the change in gears from 4.10s to 3.73 which was needed to be competitive on the track. Here is the dyno sheet.

http://i3.photobucket.com/albums/y75...oJune_2006.jpg

So it's a go? :toetap:

I am deciding tonight, but I am not going to Pocono this weekend so it looks good.

very curious...did they completely remove the MAF or just disconnect it? I have always heard that speed density was better for modding, but the MAF supposedly gets better mileage. Can any remember the reason why most manufacturer's swtiched from Density to MAF in the late 80's?

MAF is gone. I have not tested the mileage yet. I think this weekend I might see what type of MPG I am getting now.

Saw Bob's car idle yesterday, if it was't for the exhaust lope you would think it was stock!:thumbs:

:thumbs: :steering:

MAP should equal MAF if tuned individually.

The MAF sensor makes up for differences in volumetric efficiency and other variables in production engines.

If you would build a motor exactly, one right after another, and I mean exact down to the nth degree and tune that one motor you shouldn't see too many differences.