Updated....I think you're ready for The Mile.

Note: Both based on Mustang Dynos. EVT 1200 data was extrapolated from ~7450-8000.

 

I thought the benefit of the extrude was at higher rpms (which is demonstrated here). Would the improvement in the low end be due to methanol use?

 

It's a combination of hardware and tuning. If you look at Evoms' dynos, their signature is early torque advantage while maintaining a long flat tq line. A fuel like E85 will help but it's not the main reason. Their EVT700+ packages pull like you wouldn't believe.

 

Asher's (The Bogg) outstanding collection of data. Most comprehensive set yet. Look at the nice gains in boost response even with the bigger turbos over stock. Plus look at the shape of the curves compared to stock. And all the gain in the upper half! I suspect this tune is silky smooth just like stock but ratcheted up a good notch. Pretty good custom tuning if you ask me. Overall gain is about 26% over stock, quite significant when you start out with 480 hp.

PS And this is all on pump fuel.

 

Thanks for all your work again Dave. The improvement with the latest version of the tune is amazing. The graph may look like there is a dip but subjectively it just pulls and pulls all the way up to redline and really is smooth as silk. Sport mode is violent!

 

Different ways to get to similar AUCs. Many thanks to Mike and Yousef for sharing their data.

 

Comment: If you're wondering why Asher's AUCs is similar to Mike's yet Mike's car is significantly faster, it's because i was a little lazy in calculating Asher's graphs (sorry Asher, data overload--lol) plus Mike's car is not full weight. If the torque curve is smooth you can fit an equation that matches well. If it's humpy then you have to break up the graph in parts and fit a curve for each section and then integrate each section and add them all up. This is time consuming but that's what I did with Mike's and Yousef's graphs. With Asher's it was just one straight curve that left some parts higher and some lower. Internally his relative numbers and increases should be fairly accurate.

 

Excellent analysis, again, Dave!

 

Thanks Neil. Here's what I'm talking about. Top = one straight curve. Bottom = Broken up in three parts. Much better curve fits.

 

thanks alot dave , great job

 

Thanks Yousef. I had to break up yours into 6 parts to get decent fits.

 

Very good info Dave. I suspect your rep points have taken off in a sinusoidal pattern similar to your graphs! Yeah I was thinking for a minute "really, my AUC is up there with Mike's???" lol, reality sets in.

I love Yousef's graph - waiting, waiting, waiting...BOOM! Classic turbo graph! Bet it hits like a ton of bricks when the turbos wake up.

For my DD use a response like Mike's is optimal. I'd say it's basically the same as mine but amplified. As a DD the upgraded vtg car is very good.

 

Dave, I'll get the mafless datalog to you this weekend and we can compare the auc graph of maf vs mafless, which I think should be interesting since there's been some debate in the past about mafless tunes.

 

Yeah, Yousef's car must feel like a frickin rocket. I'd love to go for a ride in that thing and see what fun feels like.

Sounds good. I'll give it a careful look over. With these simulated curves, it's easy to be off by 10% if the fit isn't perfect especially at the higher end when you're dealing with larger numbers. I try not give Proto cars any AUC bonus points--lol.

 

I'm not sure how you can still manage to squeeze more out of those perky A28s! The AUC numbers match up well with your increase from gt740 to gt775. Great job Capt Tweakazoid.