FT-86 SpeedFactory Diffuser by Verus - Complete Aero Solution

[CSG Mike]

Originally Posted by GSpeed

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.

Precisely!

Even the 0.5s gained per lap also is within that noise, even with a pro driver. More variance than that can be induced by weather conditions, tire temps, etc.

[GSpeed]

Originally Posted by CSG Mike

Precisely!

Even the 0.5s gained per lap also is within that noise, even with a pro driver. More variance than that can be induced by weather conditions, tire temps, etc.

Eh, I'm going to have to disagree with you again there. Weather conditions and tire temps can introduce 0.5s+ of variability, sure, but not between laps of the same session. Sure, the standard deviation is rather high for a given sample of lap times, but that doesn't mean the average can't move meaningfully. A half a second in lap times, when repeatable (which this improvement was), is more than enough to win races.

The driver noticed a significant change in the behavior of the car, was able to drive it harder, and we went faster than we'd gone previously. You're welcome to repeat the test we did.

[CSG Mike]

Originally Posted by GSpeed

Eh, I'm going to have to disagree with you again there. Weather conditions and tire temps can introduce 0.5s+ of variability, sure, but not between laps of the same session. Sure, the standard deviation is rather high for a given sample of lap times, but that doesn't mean the average can't move meaningfully. A half a second in lap times, when repeatable (which this improvement was), is more than enough to win races.

The driver noticed a significant change in the behavior of the car, was able to drive it harder, and we went faster than we'd gone previously. You're welcome to repeat the test we did.

Ah, see that wasn't mentioned in the original post. If its a consistent noticeable change, then yes, I'll accept it. It's all too common for products to have a "best vs worst" comparison made, and while that single comparison may be statistically insignificant, the overall trend is definitely significant.

[BRZoomTX]

Has anyone installed this on a car with Series Blue / STi rear spats?

[VerusEric]

Originally Posted by BRZoomTX

Has anyone installed this on a car with Series Blue / STi rear spats?

I believe the bottom picture shows the spats you had questions about?



Thanks @GSpeed for clarifying what I did not.

To my knowledge, no one else has done a back to back test like G-Speed helped us with. With how consistent their driver is, that is a real world reduction in lap times. And to go further, Jake said normally there second time out is slower, and they went faster, so the reduction in times is likely more than what was witnessed. Again, can't thank @GSpeed enough for this data and testing, great company to work with.

[VerusEric]

Originally Posted by 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


Sent from my iPhone using Tapatalk

Not quite sure we are setup for something like that but we will look into it

[BRZoomTX]

Originally Posted by NotEric6

I believe the bottom picture shows the spats you had questions about?

Yep, thanks! Any other pictures you know of? I can't find any myself.

[WRB5titch]

Posted earlier in this thread with the aggressive version. I have the rear spats also and will post pics of the non-aggressive version once I get it in

http://www.ft86club.com/forums/showthread.php?p=2318338

[Vten]

Originally Posted by NotEric6

I believe the bottom picture shows the spats you had questions about?

.

That do you think that front splitter will work on the sti front lip add on ?

Thx

[BRZoomTX]

Originally Posted by WRB5titch

Posted earlier in this thread with the aggressive version. I have the rear spats also and will post pics of the non-aggressive version once I get it in

http://www.ft86club.com/forums/showthread.php?p=2318338

Sold me. Thank you!

[Xuningshen]

install was super easy. I was looking for a photo more at this angle on the interwebs but couldn't find one, so i thought i'd post this here. super awesome product, love the lightweight metal its made out of, the rivet nuts are so cool. I forsee me using some more of them in the future

[VerusEric]

Originally Posted by Vten

That do you think that front splitter will work on the sti front lip add on ?

Thx

I'm not sure, but I do not think so.

Originally Posted by Xuningshen

install was super easy. I was looking for a photo more at this angle on the interwebs but couldn't find one, so i thought i'd post this here. super awesome product, love the lightweight metal its made out of, the rivet nuts are so cool. I forsee me using some more of them in the future

Attachment 122051

Oh wow, this looks awesome! May we use it to post on our social media outlets? Glad you like it , beautiful car!

[qwerty66]

Originally Posted by GSpeed

Eh, I'm going to have to disagree with you again there. Weather conditions and tire temps can introduce 0.5s+ of variability, sure, but not between laps of the same session. Sure, the standard deviation is rather high for a given sample of lap times, but that doesn't mean the average can't move meaningfully. A half a second in lap times, when repeatable (which this improvement was), is more than enough to win races.

The driver noticed a significant change in the behavior of the car, was able to drive it harder, and we went faster than we'd gone previously. You're welcome to repeat the test we did.

Are you guys using the front pieces that covers the space front of the rear lower control arms as well?

[Xuningshen]

Originally Posted by NotEric6

I'm not sure, but I do not think so.



Oh wow, this looks awesome! May we use it to post on our social media outlets? Glad you like it , beautiful car!

sure! its just a cellphone shot lol.