Reasonable / functional aero for track

[melanthius]

Hey, I am considering front/rear aero for track purposes, not for show but I'm very OK with it if it "happens" to look good.

There's a lot of options out there and it's hard to differentiate what actually makes a difference versus what is just for looks.

Rear: I'd probably go with a full wing over a spoiler. Currently have a small white lip-type spoiler on the trunk.

Front: I have no idea but feel like I could use more downforce up front. I am a bit hesitant to put a massive lip because I already scrape going up my own driveway.

[DRLane]

You need balance, so if you're not using an appropriate splitter for the wing it's a pointless endeavor.

Serious aero options: BW, Zebulon, RS Future, Nine Lives, AJ Hartman, Verus Engineering

Otherwise all the usual GTS inspired offerings.

[melanthius]

Bump, just looking for a functional setup, does not have to be the absolute best, but would like each part to make a noticeable difference.

If anyone has some specific product recommendations that would be appreciated.

Front splitter + wing is enough, or need side skirts, canards, rear diffuser, etc? What combo would give a good upgrade?

Originally Posted by DRLane

You need balance, so if you're not using an appropriate splitter for the wing it's a pointless endeavor.

Serious aero options: BW, Zebulon, RS Future, Nine Lives, AJ Hartman, Verus Engineering

Otherwise all the usual GTS inspired offerings.

So far,

• Zebulon and RS future seem to do custom stuff only, which seems potentially excessive for my goals
• No F8X offerings from AJ Hartman, or Verus
• Bimmerworld has some F8X selections, their wing is a very expensive $3.2k option and I'm not sure what to pair with it exactly (canards, splitter etc) if I am even willing to spend that much on a wing alone.
• Nine lives has that huge wing (giant wang or whatever) for cheap, but not sure if it's for me, size just seems excessive. And they don't seem to have F8X splitter options so would still be looking for something there.
  

Guess I will keep looking

[TractionControlDelete]

Originally Posted by melanthius

Bump, just looking for a functional setup, does not have to be the absolute best, but would like each part to make a noticeable difference.

If anyone has some specific product recommendations that would be appreciated.

Front splitter + wing is enough, or need side skirts, canards, rear diffuser, etc? What combo would give a good upgrade?

So far,

• Zebulon and RS future seem to do custom stuff only, which seems potentially excessive for my goals
• No F8X offerings from AJ Hartman, or Verus
• Bimmerworld has some F8X selections, their wing is a very expensive $3.2k option and I'm not sure what to pair with it exactly (canards, splitter etc) if I am even willing to spend that much on a wing alone.
• Nine lives has that huge wing (giant wang or whatever) for cheap, but not sure if it's for me, size just seems excessive. And they don't seem to have F8X splitter options so would still be looking for something there.
  

Guess I will keep looking

The Bimmerworld "GTMore" setup might be your best bet:

[SYT_Shadow]

Originally Posted by F82KPowers

The Bimmerworld "GTMore" setup might be your best bet:
]

That is the best bet, especially given that it is a matched set. However, I'm not sure it falls into the 'reasonable' camp! lol

GTS aero is very reasonable and can be noticed.

[ENDL3SS]

For a bit more over the Bimmerworld GTMore package, you can go M4 GT4.

[SYT_Shadow]

Originally Posted by ENDL3SS

For a bit more over the Bimmerworld GTMore package, you can go M4 GT4.

I've seen the OEM M4 GT4 right by the GTMore car and the aero difference is massive. Front and rear.
The GT4 looks like it has 'CS' aero that is perfectly streetable. The GTMore aero is much, much bigger.

I have a GT4 front splitter at home for testing but the stock GTS suspension is too soft to install that big of a splitter

[D_SheerDrivingPleasure]

Originally Posted by SYT_Shadow

I've seen the OEM M4 GT4 right by the GTMore car and the aero difference is massive. Front and rear.
The GT4 looks like it has 'CS' aero that is perfectly streetable. The GTMore aero is much, much bigger.

You are not kidding. This IS massive and def not streetable unless you want to decapitate cyclist/pedestrians....but I still want it.

[SYT_Shadow]

It's going on our cars! Hopefully no decapitations...

[D_SheerDrivingPleasure]

Originally Posted by SYT_Shadow

It's going on our cars! Hopefully no decapitations...

Will you upset the aero balance by installing that guillotine wing? Is it adjustable? How much front end downforce is generated by those the canards (dive planes) relative to the GTS lip?

Pardon my French.

[SYT_Shadow]

Originally Posted by D_SheerDrivingPleasure

Will you upset the aero balance by installing that guillotine wing? Is it adjustable? How much front end downforce is generated by those the canards (dive planes) relative to the GTS lip?

Pardon my French.

The guillotine wing goes paired with the ankle destroyer front splitter. That front splitter is several times larger than the M4 GT4 splitter and was designed to pair with the giant rear wing.

At the track I constantly see cars with ridiculous rear wings paired with basically zero front aero. You won't see me with that.

[melanthius]

You guys are definitely making me want the Bimmerworld option … with a setup like this, is there any need whatsoever for rear diffuser?

[uncle ben]

“The guillotine wing goes paired with the ankle destroyer front splitter”

LOL 😆. Technical terminology.

[SYT_Shadow]

Originally Posted by melanthius

You guys are definitely making me want the Bimmerworld option … with a setup like this, is there any need whatsoever for rear diffuser?

I won't be running one. It's easy to get lots of rear downforce, the issue is always the front.

[D_SheerDrivingPleasure]

Originally Posted by SYT_Shadow

It's easy to get lots of rear downforce, the issue is always the front.

Functional front lip splitters are just so vulnerable. All it takes is an off at the track or a steep driveway approach. I just busted mine and I don't think I will replace it (unless it's too ugly without one).

These BMW Motorsport dive planes seem like an interesting alternative, albeit aggressive looking. I question if they can generate real front downforce on their own, or if a motorsport type lip splitter does most of the work. Anyone know?

My front bumper is already mangled so I don't mind drilling holes to install these.

[SYT_Shadow]

Originally Posted by D_SheerDrivingPleasure

Functional front lip splitters are just so vulnerable. All it takes is an off at the track or a steep driveway approach. I just busted mine and I don't think I will replace it (unless it's too ugly without one).

These BMW Motorsport dive planes seem like an interesting alternative, albeit aggressive looking. I question if they can generate real front downforce on their own, or if a motorsport type lip splitter does most of the work. Anyone know?

My front bumper is already mangled so I don't mind drilling holes to install these.

Unfortunately, the lip/splitter does 90% of the work and the dive planes are mostly there to look badass

If the lip/splitter is robust enough it can handle offs. You can stand on the BW GTmore one and it doesn't budge

We'll see what we have to do to drive around with this...

[D_SheerDrivingPleasure]

Originally Posted by SYT_Shadow

Unfortunately, the lip/splitter does 90% of the work and the dive planes are mostly there to look badass

If the lip/splitter is robust enough it can handle offs. You can stand on the BW GTmore one and it doesn't budge

We'll see what we have to do to drive around with this...

You are all in!

[uncle ben]

That front lip looks like it belongs on one of those crazy pikes peak hill climb cars. It’s not so much a front “lip” more like a front “wing”

[melanthius]

So I just ran all this by my wife and she didn't say no… lol

I had my eye on a McLaren 600LT and now I'm selling this track build idea as a budget option


Edit - any opinions on aeroflow dynamics for front splitter? Looks functional and more cost effective than a lot of options, I just know I will destroy it so I don't really want something that costs thousands up front

https://www.turnermotorsport.com/p-5...e-splitter-v1/

[markw10702]

If you go with the Bimmerworld front and rear GTMore parts you will definitely need higher rate springs front and rear. Both these parts together create more down force than the factory GT4 parts.

Also, BW has installed some beefy skid blocks on the underside of the front splitter to help reduce damage over obstacles. That said this is probably not something you would want to run on your daily.

[Theruleslawyer]

Originally Posted by SYT_Shadow

I won't be running one. It's easy to get lots of rear downforce, the issue is always the front.

Just buy a second wing and mount it on the hood. 😏

[DrFerry]

Originally Posted by Theruleslawyer

Just buy a second wing and mount it on the hood. 😏

You mean like this..
.