Stock vs Dizzy 93 Stage 1 vs Dizzy E30

[4sfed4]

All-

I am new to the FiST community and have enjoyed patrolling around the board for a few months and picking up some of the specifics of this platform from all of you. Although I used to be up to speed on forced inducted cars and turned wrenches (built engines, experimented with turbos, fueling, etc, etc) for fun 15-20 years ago, Ive barely done an oil change since. The FiST is such a hoot to drive (I bought one sort of on a whim as a fun 3rd/periodic daily use car), that its gotten me a bit excited about messing around with cars again. I can feel the proverbial rabbit hole opening up.......

In any case, my entry into this car, based on the positive experiences of others on this board, has been working with @Jason@dizzytuning on some basic flash tunes. As my car is all stock currently, I wanted to get some baselines in place. As others have found VDyno as a useful tool, Ive used it as well. Im not sure on the absolute value of the numbers, but VDyno certainly seems sensitive enough to determine deltas (which is really whats important).

In any case, for a stock 2019 with 6000 miles on it, the below is what I have found. Ive tried to be detailed enough when making these measurements to account for variations in fuel volume, etc so hopefully this is at least moderately and apples to apples comparison of the various tunes.

As I have easy access to E85 (and its actually E85 as Ive measured it....pump 93 here tested at E8-E9), Ill stick with the E30 tune as the extra midrange is worth it.

As a newbie to this group I have been mostly an absorber of info here, but hopefully I can be at least a moderate contributor going forward.

 

[vivix]

neat data is neat

 

[Se7eN]

that some good info you've racked up

 

[4sfed4]

that some good info you've racked up

My day job is as a mechanical engineer, and my first job out of college many moons ago was working for a test laboratory, so I learned to understand the value in minimizing variables. Outside of a lab though, that can get difficult and things such as outdoor temperature, intercooler temperature at the start of the run, fuel tank level etc. can all vary a little bit, but I tried to minimize/account for those things as much as it was possible at least.

In the very least, I seem to have found a good "test strip" where I can make the runs such that that variable is eliminated. The bummer is the drive to Mexico where the test strip is located is a bit of a haul from Florida!

 

[4sfed4]

With the major temp drop here in FL today (it dropped ~20F from yesterday...the air feels wonderful!), I noticed what seemed to be the (expected) buttdyno improvement in the FiST. As such, I took it to the same Mexico City test strip and obtained a few more VDynos. The buttdyno appears accurate. The much lower IC starting temps, ~74F outdoor ambient and lack of heat soak makes a big diff.

 

[4sfed4]

After installing the Whoosh V3 IC this AM, I made a few more runs to see what the approximate gains might be on the same Dizzy E30 tune. The ambient temps were fairly close to the baseline E30 run (80F vs 84F), and charge air temps started at close to the same value for each of the runs as well. For the stock IC E30 run, the CAT at the start of the run was 85F and ended at 106F, while with the Whoosh V3 IC, the CAT started at 88F and ended at 95F.

 

[4sfed4]