^^ if we want to play in real macro economics though, the free market does not set the price. Because the corn farmers are subsidized to grow corn, and actually in many cases, to NOT grow corn, impacting the price. And the massive tariff on imported ethanol (which brazil could sell us for cheap) has also caused a misappropriation of resources into ethanol production. I'm all for e85 because we can make lots of power with it - but without government interference, there is about a 0% chance we'd be working with it. A true free market would kill it, because gasoline is cheaper and easier to make right now.

 

Regardless, as you guys stated, the blend is now E70 for the winter so who cares if they increase the price, 93 for me plx

 

So I took Tom's advise and did an Accessport pull on the Dynamometer. I'm actually disappointed in the torque

 

LOL sweet virtual results y0!

 

ethanol content analyzer said E79 yesterday in carrolton gas station

 

Has anyone seen as low as E70 in the DFW area?

 

I have been getting a CEL on more than one occasion lately since the winter came. All I've ran is E85, I switched to 93 octane and nothing bad so far.

 

lol Virtual dyno is a joke. I did a pull the day I got my car back from cobb just for fun. Cobb dyno read 393hp and the ap read 485hp and 400 lbs of torque. I used 3684 as my weight.

 

I tried the same thing when I had my Cobb AP for 12 days or so. Total piece of horse **** pretty much. To get +/- single digit results, run the AP log through Virtual Dyno, Brad could at least get high school math right.

 

Any simulated dyno run software is a joke.

 

I have been asking Cobb guys for over a year to do a back to back run in VD with their official Cobb log. None yet have come to the call, well a few have but they usually whine that the results were lower than on the drums. A lot of the open source tuners have and it has consistently shown like results. Like is relative since no two real dyno's read so accurately anyhow. It isn't much of a simulation when it is simple arithmetic. How much does it weigh, how fast does it go, what is it's gear ratio...

All you have to do is calculate the revs/hr and find the revs/min and then pass that through...

Horsepower = Torque x RPM/5252

And you can plot both torque and horsepower, even in Excel. My point was I don't get why the AP cannot get that simplistic math right. I think they should change the firmware to look at a log instead of trying to capture live data. There is a large margin for error asking the user to do anything.

I know I use VD and my mods and tune rank right up there with what Cobb and others are cranking out. Albeit +/- 5% or so sometimes but then again we could be lame like the Subies and apply SAE corrections to get better results!

The only real variable is folks don't really know how much their cars actually weigh when trying to use the calculations.

 

I'm not trying to fan any flames but I know for a fact that a certain someones VD numbers on pump gas that claim to be higher that everyone's else's e85 numbers on a real dyno is just ludicrious.

I did a VD run on my Cobb AP and it showed 536 hp and 530 tq. When the real dynos show 414 and 375. Alex did the same and showed 484 hp and his real number was 393 hp. VD just isn't accurate compared to a real dyno. There are just too many variables. The biggest being people claiming thier cars weigh absurd weights.

Not to defray however...a dyno is just a tool. Nothing more. If its not calibrated right the results are meaningless.

 

Edit: My bad I thought we were all talking about the popular Virtual Dyno app by Brad Barnhill. Yeah the Cobb ones suck donkey *****. Said I made over 400hp/tq with nothing but exhaust, repeatedly!

 

I think it's safe to say it's time for Bailey to seek other teams.

 

For what it's worth here's a spreadsheet I put together a long time ago that calculates SAE whp and wtq from tach logs. You need to know stuff like gearing, tire size, weight, frontal area, drag coef and atmospheric conditions for it to work correctly.