AJ Hartman Aero - 18+ Canards

[TeeLew]

Sorry man for the late response.been crazy at work.
The MOST IMPORTANT thing as always is balance.
Most of the wings have CFD done so is kind of easier to know the DF produced. For The splitter we have "some idea" but nothing in stone.
Splitter performance comes from 4 main factors.
1. Size.
2. Height from the ground.
3. Front diffuser.
4. Shape

1. Size matters. Lol. How much lip you want depends on you and the competition rules u do. Usually between 4 and 6 inches is a great target
2. One of the key factor. ~3" from the ground is the 'magic number' here. More and the effectiveness of the splitter is reduced .less and u destroy it every time you brake (if u dont have enough springs)
3. This can multiple downforce.
4. Shape is more about how far back you want to go with splitter and what about the side part where you will have side plates canards and tire deflector.

NUMBERS.
a only blade splitter is about 150-200lbs DF @100mph (from now on DF is always referred at 100mph)
Side plates and deflectors can add another 50-70lbs (but increase drag too) . Canards about 20-30but more important canards help reducing drag and improve overall aero performance.
Front Diffuser well...we can discuss years here. 2 pairs of AJ diffusers can double the DF(SEE PICS)

wings.
AJ WINGS are master pieces. fulcrum 14 is an excellent piece can sustain and balance a splitter from a flat blade to a more complex front diffuser blade. (Just changing the Angle of Attack)
APR 250 is a nice "base" wing that produces leff DF and less drag. It is good to balance a blade only solution but cannot balance a bigger splitter.
So if you plan to ..evolve your splitter you need to consider it.

Materials.
As patrick mentioned there are many options.
1. Plywood burch. I made one in 1/2 inch thickness. He is cheap so less thick . Heavier but less brackets required to hold it in one piece.
2.alumalite or PROLITE 10mm .this is my current one. Requires many reinforcements with brackets .
3. carbon fiber. Cool and string but expensive. Especially if you smash it lol.

Last. All my splitters can be removed with quick release connectors from Prof Awesome. This allows u to use the car for street duty without having a splitter hitting every bump of the highway .

Hope this help

Your blade option is what I'm considering, and I was thinking birch skinned in glass. If Paddy is limited to 15/32" sheet, I'll probably only be able to afford 11/32", lol! Times are hard all over.

Your comment on balance is really what I'm trying to address before I go. What *is* the aero balance of the car in stock trim? I never feel that sort of thing in autocross. The speeds are too slow and so am I! Is it one of those things where you need something like a blade splitter just to keep from tearing up the front tires or if you put one on do you now have to really watch your P's and Q's in the fast stuff if you don't have something on the tail for stability? I just don't know what I don't know.

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[Flyhalf]

Your blade option is what I'm considering, and I was thinking birch skinned in glass. If Paddy is limited to 15/32" sheet, I'll probably only be able to afford 11/32", lol! Times are hard all over.

Your comment on balance is really what I'm trying to address before I go. What *is* the aero balance of the car in stock trim? I never feel that sort of thing in autocross. The speeds are too slow and so am I! Is it one of those things where you need something like a blade splitter just to keep from tearing up the front tires or if you put one on do you now have to really watch your P's and Q's in the fast stuff if you don't have something on the tail for stability? I just don't know what I don't know.

Producing 500lbs of DF total is great ina 2600lbs miata but ok in a 3700lbs mustang.
Unfortunately we start with the weight handicap.
AJ did a video about the OEM shelby 350R aero in the wind tunnel.
Turned out. There is basically no aero lol.
I suspect pp1 has even less.
So what ever u will put on... Will be better than oem.
Make a blade. Then buy a wing and play with it and the AoA. Is not a perfect science but just a bunch of tries and also depending on driver preference (some loves rear more loose some more stable)

 

[Ewheels]

@tosha look into 9 Lives Racing wing. Same size as the APR GT250 but because it's aluminum rather than carbon, it's about $1000 cheaper.

That's my plan for aero but I need coilovers before I start adding aero to the car.

 

[tosha]

@tosha look into 9 Lives Racing wing. Same size as the APR GT250 but because it's aluminum rather than carbon, it's about $1000 cheaper.

That's my plan for aero but I need coilovers before I start adding aero to the car.

This one: https://9livesracing.com/collections/ford/products/big-wang-kit-for-mustang-s550-2014? Thanks a lot for the pointer, the price is looking great indeed. Also, it's a bit excessive for a dual purpose car in my view, and it seems that I would need to build a custom splitter for it. Then coilovers, as you say, followed by slicks and etc and etc . I'm not ready to become homeless just yet .

Driver mod is my main focus at the moment, and I just want to address this back end lift sensation. Will see what Black Friday brings to the table and will go from there.

 

[tosha]

Producing 500lbs of DF total is great ina 2600lbs miata but ok in a 3700lbs mustang.
Unfortunately we start with the weight handicap.
AJ did a video about the OEM shelby 350R aero in the wind tunnel.
Turned out. There is basically no aero lol.
I suspect pp1 has even less.
So what ever u will put on... Will be better than oem.
Make a blade. Then buy a wing and play with it and the AoA. Is not a perfect science but just a bunch of tries and also depending on driver preference (some loves rear more loose some more stable)

Is there a link or video with more details on blade spoiler manufacturing that you could share by any chance?

 

[Flyhalf]

No but i can help u if you need.

Ps. A zl1 addons splitter.lip (250$ i think).is bigger than the pp2 lip. It will give u extra few.lbs of DF. pair with a swing in the back might be a good small cheap.balance

 

[Scootsmcgreggor]

If you want to do aero do the wing first. I did my splitter blade first and even at 4” off the ground with no wing it was like a drift event at higher speeds.

 

[tosha]

No but i can help u if you need.

Ps. A zl1 addons splitter.lip (250$ i think).is bigger than the pp2 lip. It will give u extra few.lbs of DF. pair with a swing in the back might be a good small cheap.balance

Thanks! Your pictures are more than I was hoping to get. btw, how did this one work based on your experience: https://trackmustangsonline.com/threads/lets-talk-aero.12974/post-222869. I'm still going through that thread, maybe you mention it later on and it seems like a simple option to fabricate.

ZL1 addons - how could I forget about that one

 

[TeeLew]

If you want to do aero do the wing first. I did my splitter blade first and even at 4” off the ground with no wing it was like a drift event at higher speeds.

Perfect info. Thanks.

 

[Flyhalf]

Thanks! Your pictures are more than I was hoping to get. btw, how did this one work based on your experience: https://trackmustangsonline.com/threads/lets-talk-aero.12974/post-222869. I'm still going through that thread, maybe you mention it later on and it seems like a simple option to fabricate.

ZL1 addons - how could I forget about that one

This is the ZL1ADDONS.
It worked well paired with he 350R replica.
I suspect with a low AoA wing with canards and RACELOUVERS (extra 40-50lbs of DF) WILL WORK WELL TO START. be sure you secure well it in the bumper and if you can secure the front with 2 chassis rods.for extra support especially at higher speed although i drove up.to 135 without issues.

The new zl1.addons have also.the gt500 side plates. This increase prolly another 30.40lbs of DF.
If you want on my IG u have a lot of pics
Www.instagram.com/italian_stang

 

[tosha]

This is the ZL1ADDONS.
It worked well paired with he 350R replica.
I suspect with a low AoA wing with canards and RACELOUVERS (extra 40-50lbs of DF) WILL WORK WELL TO START. be sure you secure well it in the bumper and if you can secure the front with 2 chassis rods.for extra support especially at higher speed although i drove up.to 135 without issues.

The new zl1.addons have also.the gt500 side plates. This increase prolly another 30.40lbs of DF.
If you want on my IG u have a lot of pics
Www.instagram.com/italian_stang

Awesome, thanks a bunch!!! I think now I have all my questions answered.

@TeeLew , @Flyhalf , @Ewheels, @Scootsmcgreggor - thanks guys for great discussion

 

[PaddyPrix]

You're reading my mind. I was thinking birch sheet with a layer of S-glass on top and bottom. I might locate it with the stock splitter, but the idea is to support it properly off the chassis.

Do you think one of those cheap-o PP2 splitters off of Ebay would make a good template?

My man! You could, and I could try to take a bunch of pics of that same undertray which I used for my first. I wasn't super duper precise with that, just something simple, cruising the HVAC aisle for simple thin sheets made that easier. Do you have the modified front control arm with the plate, or an aftermarket one? Definite plus to throw the air into the brakes from the backside.

 

[Ewheels]

This one: https://9livesracing.com/collections/ford/products/big-wang-kit-for-mustang-s550-2014? Thanks a lot for the pointer, the price is looking great indeed. Also, it's a bit excessive for a dual purpose car in my view, and it seems that I would need to build a custom splitter for it. Then coilovers, as you say, followed by slicks and etc and etc . I'm not ready to become homeless just yet .

Driver mod is my main focus at the moment, and I just want to address this back end lift sensation. Will see what Black Friday brings to the table and will go from there.

That's the one!

I understand you want just a bit of downforce to stabilize the rear end but honestly, I would skip the spoilers or anything smaller than a full size wing.
With a spoiler, there is no room for growth. You'll want to go bigger eventually and then the spoiler was just wasted money.
You can set the wing to 0 AOA or possibly even slightly upward to add just a bit of rear end stability. Then when you're ready to add some serious downforce, you can adjust the AOA, add bigger end plates, or add bigger gurney flap and BAM...more aero with the same wing.

 

[tosha]

That's the one!

I understand you want just a bit of downforce to stabilize the rear end but honestly, I would skip the spoilers or anything smaller than a full size wing.
With a spoiler, there is no room for growth. You'll want to go bigger eventually and then the spoiler was just wasted money.
You can set the wing to 0 AOA or possibly even slightly upward to add just a bit of rear end stability. Then when you're ready to add some serious downforce, you can adjust the AOA, add bigger end plates, or add bigger gurney flap and BAM...more aero with the same wing.

yeah, I know I know . that's how it always goes, whether it's tires, wheels, brakes, pads seats, cages and etc and etc. all the "dual purpose" stuff ends up a waste of money.
If I can find a cheap spare decklid, I'll probably go that route. or maybe finally get myself a dedicated track car and forget about need to make compromises

 

[Ewheels]

yeah, I know I know . that's how it always goes, whether it's tires, wheels, brakes, pads seats, cages and etc and etc. all the "dual purpose" stuff ends up a waste of money.
If I can find a cheap spare decklid, I'll probably go that route. or maybe finally get myself a dedicated track car and forget about need to make compromises

I bought a 20 year old Avalon for $3k. Best mod for the mustang I ever bought

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