FT-86 SpeedFactory Diffuser by Verus - Complete Aero Solution

[G-awesome]

WILL BUY! payday can't come soon enough!

[HATED1]

@FT-86 SpeedFactory just wondering when these will be shipping out? It says "shipfactory" I'm just excited to get it put on #400001828 Thanks for any info!

[ck-GT86]

Originally Posted by HATED1

@FT-86 SpeedFactory just wondering when these will be shipping out? It says "shipfactory" I'm just excited to get it put on Thanks for any info!

Mine arrives this Friday


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[VerusEric]

Originally Posted by HATED1

@FT-86 SpeedFactory just wondering when these will be shipping out? It says "shipfactory" I'm just excited to get it put on #400001828 Thanks for any info!

The non-aggressive units are in stock. The aggressive units are out of stock currently. There website confirms this as well. Hope this helps some.

[HATED1]

Thank you, Jeremy at FT-86 SpeedFactory contacted me today and let me know my status on my order!

[Bach415]

Originally Posted by jdnguyen

Hopefully I'll have some time today to bust out the cutting wheel or plasma cutter to modify the rear diffuser to get the tomei type 80 to fit. Looks like a section towards the front of the car will need to be removed on the diffuser. Hopefully that's it.
Stay tuned...


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If possible, pictures of the area you are planning to cut for the type-80

[FT-86 SpeedFactory]

Okay installed pics of each unit on the same car in the same setting so you can compare. Picture overload time.

Non Aggressive


















Aggressive

[FT-86 SpeedFactory]

Video time
[ame="https://www.youtube.com/watch?v=54ynNLxkp-s"]FT86SpeedFactory - Rear Diffuser Install - YouTube[/ame]

[VerusEric]

Well, we have some exciting news. We have some real life data showing that these along with our front splitter work on a race track.

G-speed shared their log data from their track car build with us and we were able to discern some changes from before and after the aero pieces. We can't thank PST enough for this opportunity and data.

The person who did this data analysis, Ryan, moonlights for Velox Motorsports and is a good friend of mine. For his day job, he is a suspension engineer for one of the biggest racing names in the world and currently works on their IndyCar team. The conclusions we came results from comparing the session 1 and session 2 fastest laps.



As Paul and I expected, we were not able to see a change in ride height data. We estimate 160 pounds of downforce at 100 MPH with our kit through our CFD analysis. This load however, is spread out on all 4 wheels, which ultimately is not that high of a load on each corner. Ryan did say he would likely not be able to see this downforce change on an IndyCar either.

What we are able to discern from the data is that the driver used less brake pressure and had higher entry speeds into the corners. Both of these signify an increase in driver confidence. This coupled with a 0.5 second decrease in lap time points to a reduction in lift from the aero components.

Thanks,
Eric

[ck-GT86]

For reference, I installed the Tame version underneath my Perrin 3" without using any of the supplied (black) extensions. Anyone else?


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[ck-GT86]

Also, this diffuser could use some matching rear spats, I have the Bayson-R spats and they don't flow that well @NotEric6


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[HATED1]

Originally Posted by ck-GT86

For reference, I installed the Tame version underneath my Perrin 3" without using any of the supplied (black) extensions. Anyone else?


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Can you post pics? I have the same exhaust and am wondering how close it will sit to the exhaust, I get mine on Tuesday

Any pics with the spats on?

Thanks!

[CSG Mike]

Originally Posted by NotEric6

Well, we have some exciting news. We have some real life data showing that these along with our front splitter work on a race track.

G-speed shared their log data from their track car build with us and we were able to discern some changes from before and after the aero pieces. We can't thank PST enough for this opportunity and data.

The person who did this data analysis, Ryan, moonlights for Velox Motorsports and is a good friend of mine. For his day job, he is a suspension engineer for one of the biggest racing names in the world and currently works on their IndyCar team. The conclusions we came results from comparing the session 1 and session 2 fastest laps.



As Paul and I expected, we were not able to see a change in ride height data. We estimate 160 pounds of downforce at 100 MPH with our kit through our CFD analysis. This load however, is spread out on all 4 wheels, which ultimately is not that high of a load on each corner. Ryan did say he would likely not be able to see this downforce change on an IndyCar either.

What we are able to discern from the data is that the driver used less brake pressure and had higher entry speeds into the corners. Both of these signify an increase in driver confidence. This coupled with a 0.5 second decrease in lap time points to a reduction in lift from the aero components.

Thanks,
Eric

A G-force plot would reveal if the diffuser actually added more cornering capability (grip). Even the most basic dataloggers all have one; is that something you guys are willing to post?

Your data and conclusion is anecdotal at best; a G-force plot is the best way to show an increase in cornering grip.

[GSpeed]

Originally Posted by CSG Mike

A G-force plot would reveal if the diffuser actually added more cornering capability (grip). Even the most basic dataloggers all have one; is that something you guys are willing to post?

Your data and conclusion is anecdotal at best; a G-force plot is the best way to show an increase in cornering grip.

No, it wouldn't. The amount of grip you gain from an additional (theoretical) 160lb unevenly distributed across the wheels would disappear in the noise. There's too much variability in temperature, line adjustment due to traffic, inconsistency, etc.

The effects of minor street car aero aren't as easy to detect with dataq as you might be led to believe. Even a mph vs. ride height plot doesn't show any perceptible change, due to the noise inherent to the system.