Singular Motorsports Endplates are coming!
 

Teaser/Head up ;)

Variants for all of the common wings run on miatas.
All endplates feature a wide range of angle adjustment as well as shape and trailing edge design tailored to the specific airfoil.

Emphasis on efficiency - unlocking downforce while minimizing drag

-APR GTC-200: UPDATE: Available now: Singular Motorsports GTC-200 Endplates

Group Buy will open this Friday for the following variations:
-APR GT-250
-APR GTC-300
-Kognition
-Car Of Tomorrow (COT)
These variations will not be available full-time, so keep an eye out for the group buy. I’ll post a link to it here when it goes up!

UPDATE: https://www.miataturbo.net/group-buy...0/#post1178234

Testing has shown significant gains:

On a GTC-200 wing using the Singular Motorsports endplates, we’ve measured up to a 40% increase in downforce on the outer 1/3rds of the wing compared to the standard APR endplates.

Comparison:
For a benchmark, we tested the next-best option out there - the SuperMiata endplates for the GTC-200.
The SuperMiata endplates are not available for purchase, but they are a good representation of your standard “big” endplate - i.e. simple square shape with the endplate roughly centered on the wing. These yielded a 26% increase in downforce over a slightly smaller width of the wing vs. the standard APR endplate.

Don’t think you need more downforce?

First of all, that’s ridiculous!
But more importantly, these are not all about increasing max downforce (although they can achieve that) - the huge benefit here is that an optimized endplate lets you decrease your angle of attack, get the same downforce as before, with far less drag.

We've been running prototypes on Sean's car for almost a year. We saw a 5mph gain on the front straight at ACS with this strategy by switching to our endplates from SuperMiata endplates.

APR GTC-200 Series:

https://www.miataturbo.net/attachmen...ine=1414013965

Car Of Tomorrow Series mounted:

https://www.miataturbo.net/attachmen...ine=1414013965

Kognition & GTC-300 (Right) besides the COT/GT-250 version (Left). At first glance each of the endplates look similar, but side by side you can see that each one has unique shape/dimensions/features tailored for its wing.

https://www.miataturbo.net/attachmen...ine=1414013965

I’m working on a tech article that goes into greater depth about how endplates affect the airflow and performance of an airfoil. That's coming soon!

-Ryan

Is there a thread for these wings similar to the Suspension Hierarchy thread?

I don't have a wing yet, but as you say that these won't be available full-time, i need to consider the idea of just buying plates now, sourcing wing later.

Not that I am aware of, though it may be out there, the internet is a big place..

GTC-200: Most common wing found on Miatas. Smallest wing offered by APR, 3D airfoil shape works well at below-roofline heights. Miata-specific mounts are available off-the-shelf. Lowest cost wing that you can be confident will provide noticeable gains. 949 Racing sells (or used to?) a budget non-carbon version.

GTC-300: Next size up in the APR line. 3D shape. Very popular among S2K, Evo, BMW, etc. track crowds. Big downforce on a miata. 949 Racing has run these in some situations (higher HP builds) and offers it with miata-specific mounts.

GTC-250: APR's 2D airfoil. What 949's Crusher ran in PTC trim. 949 sells this. Custom uprights needed.

COT: Found second-hand from the NASCAR Car of Tomorrow cars. 2D wing, high-end construction at a very low price. Airfoil shape optimized for high speed/low drag (higher speeds than miatas see). Everyone scooped these up when they were available from eBay, Roush, etc. Very difficult to find these now. I run one on my car as does Keith on the Targa V8 Miata.

Kognition: Your go-to manufacturer for serious wings for time attack/road race applications at (relatively) affordable prices. Available in custom widths and mount dimensions. More $$$ than the rest. Andrew had one for Theseus but sold it to GeneSplicer (who is getting a set of our endplates for it)

There are plenty of other wings out there; Voltex, Crawford, etc... but the above comprises probably 90% of what is found on Miatas.

The group buy is going to have an option for those who have other wings to get our endplates in a drill-it-yourself version. If you don't yet have a wing and have no idea which one you'll get, you may wish to get this option and drill it for the wing you choose later.

-Ryan

Well you got me there, what are Sean's car spec to give us an idea...

I think i'd need/want a 300, COT, or Kognition, but yeah... i'm not sure i want to bank on finding another COT for a price that makes sense getting over one of the other options.

HRM.

Will keep an eye on things regardless. :) You guys are doing some seriously cool stuff!

At the time my car was running with ~140whp from a junkyard NB1 engine with the basics (coilovers, 15x9s, 949 Front Air dam). End plates made a perceivable impact on aero balance when I moved to the bigger design, both through seat of the pants and via data logging.

-Sean

Well thanks Sean ! I'm in for a set then (supermiata GTC-200)...

I am? Oh yeah, that's right ;)

Consider me signed up for COT version. Seksay.

Man, I don't even see myself having a wing in the near foreseeable future and I'll probably be getting the GTC-200 plates....bastards.

You guys are full of win lately.

Do you have the area of the end plates available? Some of us are limited in surface area by the rules.

Varies depending on which endplate we are talking about. Which ruleset limits you by surface area?

For those competing with NASA who are points-conscious, we'll be offering "zero-point" versions which will be slightly shorter.

The GTC-300 and Kognition have very similar profiles so endplate design is the same for each, bolt layout is the only difference. So we could do an undrilled set of that plate design, you drill it later.

I'll try to explain better in the group buy thread, but there are three endplate designs; GTC-200, GT-250/COT, and GTC-300/Kognition. For the latter two, bolt hole layout changes according to which wing you have, but overall shape is the same.


-Ryan

As an FYI - SCCA Solo rules for both SM and XP categories have similar requirements. I think most end up building their own since auto-x'ers are less concerned with overall drag due to the lower speeds. But some will always seek the sharpest knife.

Wing endplate surface area is limited to 200 sq. in. each and limited to a maximum of 2.

Just measured. All of our endplates fit within the 200 sq. in. limits. It wasn't intentional, but turns out these are pretty well optimized for those rules - the COT/GT-250 and Kognition/GTC-300 are ~190 sq. in. The GTC-200 version is slightly less.

-Ryan

love the idea. on the end plate. leave the rear section flat. then install a 1/2" of angled 90* aluminum to that edge. this will create a low pressure area behind the wing and speed up the air flow under it. thus more down force...

I have a gurney flap like you're describing on the endplates on my car.
We have a shelf full of endplate variations that we put through testing - several with various elements/shapes along the trailing edge - before we settled on these.

I intentionally made the trailing edge straight so that if one wishes they can play with attaching a gurney flap. In our testing we saw that trailing edge elements/gurneys can improve outwash and create a virtual endplate extension, further adding to peak downforce numbers, but the trade-off is more fluctuation in pressure, whereas a 2D endplate creates a more constant amount of pressure.

I'm experimenting with some more radical trailing edge stuff on a new version of endplates on my car, but that gets into stuff that becomes car-specific, not something that will just bolt on to any car and work the same. I'll post some pics of that stuff as it develops though just for fun discussion material :)

-Ryan

Id be interested in a set for Lazarus, depends on which wing I end up with.

Any idea on COT pricing?

#merica love it!

Subscribed and in for a COT set.:party:

Updated my response to concealer's question about wing heirarchy on page 1 as I just noticed that 949 sells the GTC-300 with miata specific mounts.

-Ryan

Group buy is up!

https://www.miataturbo.net/group-buy...0/#post1178234

This is for all variations EXCEPT GTC-200 as we are going right into regular production with those and will have them available very soon.

Updating first post with the link as well.

Before I bite the bullet, I see there are some numbers to the increase in downforce with the use of these endplates. Just curious how these numbers are determined and perhaps you could give us some insight on the testing done with these in particular with the COT version?

Thanks!

Of course :)

Much of the testing is pretty simple but time consuming, measuring the pressure differential between the top and bottom of the wing at various points along its width. This allowed us to not only see fairly accurate "real world" downforce numbers, but we could also map out the degradation in pressure as you moved outwards towards the ends of the wing (and observe improvements across that area as well).

The one thing more important to me than " test lab" numbers though is the real-world effect on performance, and that is something we've seen across the board. That's why the 5mph difference in top speed that we consistently saw in testing on Sean's car is such an important point, as is the substantial improvement (experienced in testing both on the GTC-200 models on Sean's car and the COT models on my car) in rear grip feel and the ability to dial in more front downforce to regain balance and have a faster car overall as a result.

As substantial as the benefits are on a 3D wing, good endplate design is even more important for a low-drag airfoil like the COT, where its performance relies so heavily on the airflow under the wing. Downforce is a product of high pressure on top, low pressure below - accomplished by slowing the air over the top and accellerating it below. Increase downforce by improving either of these. Some wings have aggressive curvature to dramatically slow the topside air. The COT has a very flat profile, so its performance comes primarily from the underside, which depends heavily on the endplate. To make matters worse for the 'standard' COT endplate, it has very little height below the wing due to its original low-mounted application, so an improved endplate has a substantial effect.

-Ryan

What was the speed difference in the corner leading into the front straight at ACS? How much of that 5mph was from reduced drag and how much was from carrying more speed coming onto the straight?
How much less AOA are you able to run and generate the same down force on a GTC-200?

ACS is the perfect track to test drag-effecting changes because most miatas will likely hit top speed before turning into T1. This eliminates corner speed on the turn leading to the straight from being a variable.

The answer to the second half of your question isn't going to be one perfect exact number for every car and situation. Tweaking aoa to find the balance after swapping endplates, I believe Sean pulled 2-3* out, but aoa is adjusted for different tracks, conditions, etc. so it's not a hard and fast number - sometimes more, sometimes less.

Using only conservative figures from our testing combined with CFD data from APR, the increase in overall downforce by changing to our endplates is on par with the results of increasing the aoa 5 degrees, but with virtually none of the drag that comes with increasing the angle.

-Ryan

Thanks, when will you be releasing the price on the GTC-200 end plates?

Expecting them to hit the website in 1.5 to 2 weeks tops. I'll update this thread with a link when we do and they'll be available for immediate purchase and shipping, no lead time or delays. :)

Those with wings other than the GTC-200 should check out the group buy that is currently running. No current plans to put the variants for other wings into production at this time, so this is your shot at them.

-Ryan

Just a reminder, the group buy ends at midnight tonight! We don't know when/if some of these endplate variations will be available again.

Stephanie Cemo/Cemo Racing switched to our endplates on her APR GTC-500 for the Superlap Battle Finale at Buttonwillow this past weekend. Without any other major changes to the car she set a new PR by 2 seconds over her time in practice from the day before and took 2nd place in Unlimited RWD.

https://www.miataturbo.net/attachmen...ine=1416273149

-Ryan

Wow! That must've been the most cost effective means of knocking time off of their lap- times. lol

There were some delays due to the holidays, but our endplates for the GTC-200 are now in stock at Good-Win Racing:
Singular Motorsports GTC-200 Endplates

APR recently did a design change on their 200-series wing, but we made sure that these endplates fit ALL GTC-200's.

-Ryan

How do I get the Car Of Tomorrow (COT) end plates?

Shoot us an email. COT, GTC-300/500, GT250, Kognition, etc. are special order (takes a couple weeks to make) but I believe I have a set of COT endplates on the shelf right now so you may be in luck :)

sales@singularmotorsports.com

-Ryan

^^email sent

Looks nice, I'll have to keep these in mind for the new build.

Got mine in... Wing thread will come as soon as my new GTC 200 gets here.

I have a new version of APR GTC-200 3D wing. APR increases the length of a wing foil from 59.5" to 60.5". Will this Singular Motorsports Endplates for GTC-200 still fit with new version of APR GTC-200 60.5" 3D wing?

Our GTC-200 end plates are compatible with both the new and old version of the GTC-200!

The one more question, can your GTC-200 endplates adjust the angle? I don't know if I'm saying right.

The end plates do have a slotted rear section to adjust their angle separately from the wing.

https://www.miataturbo.net/attachmen...ine=1434086714

From the aero thread ...
 

I saw this, and thought that I would 'do something' to support the endplate and prevent the movement ... but of course it didn't make it to the top of the 'to do' list (Murphy rules!) before this weekend's event.

As a result, I have now tested the effects of a lost wing endplate, lost through a 200kph corner ... ripped straight out of the foam core, and broken away from the aluminium angle gurney! To my chagrin, the first I knew of it was when I got out of the car in the garage - so much for my sensitivity to vehicle dynamics :o

The core was a Flying Foam core, white as the higher strength blue was unavailable at that time - obviously the weak foam was the failure point, the bonded-in sleeves were fine, still attached to the surrounding foam. Fortunately I have another core in blue foam, but I will be re-thinking my mounts, including the use of some form of stay or movement stop to control the inward movement and reduce the bending/leverage moment at the endplate mount.

The take-away from this experience is

1. there is an appreciable bending force acting on the mounts of these endplates, which is not to be under-estimated;

2. white foam cores should be treated as suspect as the principle/only method of mounting big endplates;

3. if you haven't got something like an aluminium spar to use as the main mount, think carefully about how you will handle the forces involved.


https://cimg1.ibsrv.net/gimg/www.mia...5e58655b7d.jpg


Failed endplate mounting

Now I need to find out who was the flaggie, who firstly dodged the flying debris, and then found and returned it - I owe him a slab!

... and a big thank you to Ryan, for building tough endplates!!

I finally got my singular end plates installed. it only took me 3 months. I need to say this makes a drastic difference. I now need a lot more Front down force. the wing at 10* AOA was overpowering even the front tires. i was able to take 5* AOA out of the wing to get the same levels of DF.


https://www.miataturbo.net/attachmen...ine=1434379838

Congrats Johnny on the recent 1st place in TTU at Road Atlanta!

More downforce with less drag For the Win.

https://www.miataturbo.net/attachmen...ine=1434660487

god i hate my tint job...

Steam cleaner and a razor blade! Congrats!

Something tells me my APR 300 endplates will be sitting in the box for a while longer after rebuilding my head. The price was too good way back during the group buy to not purchase them.

tried it. found out your not supposed to put tear offs/Tint on cheap lexan. the treasure coast lexan is the same stuff you get at home depot. i called my buddy over at Five Star and he was telling me i basically screwed up my lexan.

I've heard of that issue as well. Basically the chemical reaction between the lexan and the film causes it to outgas and bubble.

Looking for a solution, besides that tint spray paint you see ricers use on their tail lights is using a heated super concentrated bath of RIT dye.

well you can run Five star coated lexan. I've decided to paint it black and run a rear view camera. i cant see out of the back window anymore. all the roll bars and wing get in the way.

Liking to bring you some miata lovin next year! Wtg!

New wing is underway, and these will hopefully hold the endplates. Turned from bar, friction fit inside the spar, end-to-end threaded rod. There will also be a bonded in sleeve aft of the spar, but the fittings will be the main attachment point.


https://www.miataturbo.net/attachmen...ine=1444614456


spar fittings

GTC-200 endplates and hood louvers at Texas World Speedway courtesy of customer Steve Price

https://www.miataturbo.net/attachmen...ine=1446138157

Be jealous Ryan - because this Kognition wing looks amazing - even more so with your endplates ;)

https://www.miataturbo.net/attachmen...ine=1449946975


https://www.miataturbo.net/attachmen...ine=1449946975

Beefy plates.

https://scontent.fmci1-2.fna.fbcdn.n...36&oe=5710E5C5

Should have posted this a while ago. Singular end plates at about 190 kmh tipping into turn 1 at Eastern Creek Raceway
https://www.miataturbo.net/attachmen...ine=1453926811

That car is going to be such a beast when it's finished.

Looks great on the Exocet!

Thanks for the photo! Saw a few glimpses of your car in the World Time Attack footage. How'd it go?

ThePass, WTAC was a fantastic experience and will be going again in 2016 (as Naturally Aspirated).

Car was another issue :(

Issue 1 was a constant failing CAS sensor that would cause a misfire and eventually a complete failure. I took 6 x CAS sensors with me and despite changing them out the problem still persisted. The Haltech tuner at WTAC even came down to check the settings on the ECU as well as some fault diagnosis and he could not figure it out. As I had done all the troubleshooting that he would have done, it was suggested that I use a Haltech Cherry Red sensor for the CAS.

This made getting quality track time rather frustrating :(

A video of a complete failure

Issue 2 was an intermittent fault with the cooling fan. Whilst not an issue on the track it was when left at idle.

Good news is both the problems were fixed and have not come back.

Issue 1 - The CAS was replaced with the Haltech cherry red which has been wired in so that the OEM can be swapped back in should sh!t happen again. However the car has had a few track sessions since the fix and the issue has not occurred again.

When the problem surface again at home a cable tie was placed to plug the plug in tight (suggested by a forum member) and surprise surprise it worked! So it would appear that being a 20+ year plug it is not as tight as what it was from the factory and breaks contact. The constant changing of the CAS resets the contact but is masked the problem.



This is with the fix Noosa Hill Climb


This is the Haltech solution

https://www.miataturbo.net/attachmen...ine=1453932817

This was made by modifying an existing CAS, tapping a hole and them screwing in the sensor

https://www.miataturbo.net/attachmen...ine=1453932817

The temp cable tie fix (not my engine)

https://www.miataturbo.net/attachmen...ine=1453932817

Issue 2 was a replace the fuse issue.

Again heading back to WTAC in 2016, between now and then quality track time is the main goal. Eastern Creek is a power track and running a NA MX5 car is a big ask, but I did not finish last in 2015. Looking at doing a 1:50 time in 2016.

Back on topic, the end plates went well (from my impressions). I do not have enough quality data at Eastern Creek to 'prove' the difference. This year I will be doing some more testing at my local track so will collect the data and report later on. However it would appear that I can run much less AOA than previous for no loss of downforce.

COT Endplates on Thing 3 Racing's V6 WRL car:

https://photos.smugmug.com/photos/i-...SQrGqbm-XL.jpg