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ZL1 Add-ons Splitter Extension

Bluemustang

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Has anyone here installed the ZL1 Add-Ons Splitter Extension?

https://zl1addons.com/products/mustang-splitter-ext

Is there a concern about it pulling the bumper off or deforming the bumper at high speeds on the track? Doesn't seem like it but some people have reported issues with products like the APR splitter.
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Ewheels

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Has anyone here installed the ZL1 Add-Ons Splitter Extension?

https://zl1addons.com/products/mustang-splitter-ext

Is there a concern about it pulling the bumper off or deforming the bumper at high speeds on the track? Doesn't seem like it but some people have reported issues with products like the APR splitter.
@Flyhalf has this product on his 18 and has reported it pulling and deforming his bumper.

The product works; it does create downforce. That being said, the front bumper was not designed for the added downforce. It can crack and stretch the front bumper. Add some splitter rods to it and mount to your crash bar behind the bumper.

Here's a link for a DIY splitter that a lot of spec class cars use:
https://nasaspeed.news/toolshed-engineer/build-your-own-splitter/
 
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Bluemustang

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@Flyhalf has this product on his 18 and has reported it pulling and deforming his bumper.

The product works; it does create downforce. That being said, the front bumper was not designed for the added downforce. It can crack and stretch the front bumper. Add some splitter rods to it and mount to your crash bar behind the bumper.
Dang, crap. That is disheartening. These bumpers must be extremely flimsy. Seems that any "sort of real" aero splitter for this car is not feasible without chassis mounting or doing what you suggested.
Problem is I don't know what I am doing also. Mounting the splitter rods, don't even know how to go about doing that. I'll do it myself, but not until I have gameplan for how to tackle it.

I removed the APR splitter for this same reason. The way APR suggests you mount it I'm not comfortable with. Last thing I want is for it yank my bumper off as I shift into 4th going down the straight.
 

Ewheels

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Dang, crap. That is disheartening. These bumpers must be extremely flimsy. Seems that any "sort of real" aero splitter for this car is not feasible without chassis mounting or doing what you suggested.
Problem is I don't know what I am doing also. Mounting the splitter rods, don't even know how to go about doing that. I'll do it myself, but not until I have gameplan for how to tackle it.

I removed the APR splitter for this same reason. The way APR suggests you mount it I'm not comfortable with. Last thing I want is for it yank my bumper off as I shift into 4th going down the straight.
You could mount it further back so less of a lip protrudes forward. The PP2 splitter is like this. You'll get less of an aero benefit with this route but you can achieve the look without damaging your bumper.

Support rods are fairly easy. Cut some holes in the lower grill and rivet some mounting tabs to the bottom of the crash bar. Then you'll have real chassis-mounted aero :)
 
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Bluemustang

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You could mount it further back so less or a lip protrudes forward. The PP2 splitter is like this. You'll get less of an aero benefit with this route but you can achieve the look without damaging your bumper.

Support rods are fairly easy. Cut some holes in the lower grill and rivet some mounting tabs to the bottom of the crash bar. Then you'll have real chassis-mounted aero :)
Hmm... the bottom of the crash bar. Didn't think of that. You're also talking to someone who has only basic skills at working on cars. Lol.
Right now am just using the California Special splitter which probably does little or nothing for aero (leaning more towards nothing).

The goal would be to get a nice looking but functional aero splitter - which means chassis-mounted. You seem to know a lot more about this than I do. I had given up on this idea, but now I just want to make it happen.
 

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Ewheels

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Hmm... the bottom of the crash bar. Didn't think of that. You're also talking to someone who has only basic skills at working on cars. Lol.
Right now am just using the California Special splitter which probably does little or nothing for aero (leaning more towards nothing).

The goal would be to get a nice looking but functional aero splitter - which means chassis-mounted. You seem to know a lot more about this than I do. I had given up on this idea, but now I just want to make it happen.
I am in a very similar boat as you. I personally love how splitters look on a car but I don't like to put anything on my car without a functional purpose. (I'm a bit of a hypocrite, the "gurney flap" I have is essentially pointless.) So a splitter just for looks is out of the question for me. Therefore chassis mount is the only route I would take.
I looked into doing this on my own car but I need much more seat time before I should even consider aero mods.

If you are looking into chassis mounting one, below should give you some idea.
upload_2019-11-4_14-37-15.png
 

HeelToeHero

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Dang, crap. That is disheartening.
Ha! I had the same reaction when I learned the news. If I'm willing to cut up my bumper maybe I'll go ahead and try it with support rods. I'm starting to accumulate some stone chips from lapping so may be it'll be time soon.
 

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Ha! I had the same reaction when I learned the news. If I'm willing to cut up my bumper maybe I'll go ahead and try it with support rods. I'm starting to accumulate some stone chips from lapping so may be it'll be time soon.
You would only need to cut into the black plastic portion of the lower grill opening. No need to cut the painted portions.

upload_2019-11-14_9-45-50.png


The support rods will connect to the crash bar behind the bumper. If you have the correct angle, they shouldn't touch any painted portions.
 

Flyhalf

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Sorry guys for the late reply sometimes I don't get notifications. I personally believe that a ZL1 addons is a great splitter lip, but I did reinforce it with bolts. I ran almost a year without rods, and I did have some light deformation on the side due to the down Force generated. Nothing to big to fix
I substituted the lognuts and rivets with a of some Bolts to o reinforce the oem splitter / lip connection. It worked great.

now as you can see from the pics I added some chassis mounted roads that will allow me a better angle of attack it also a better stability at high speed. Feel free to contact me for more information.
Alessandro
20190603_180151_HDR.jpg
IMG_20190830_121347_725.jpg
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20191008_105555_HDR.jpg
Yellow Group-Turn 4-CVR_0408_0931_Oct1919_CaliPhoto.jpg
IMG_20191011_130648_303.jpg
 

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Lorenzocinque

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Sorry guys for the late reply sometimes I don't get notifications. I personally believe that a ZL1 addons is a great splitter lip, but I did reinforce it with bolts. I ran almost a year without rods, and I did have some light deformation on the side due to the down Force generated. Nothing to big to fix
I substituted the lognuts and rivets with a of some Bolts to o reinforce the oem splitter / lip connection. It worked great.

now as you can see from the pics I added some chassis mounted roads that will allow me a better angle of attack it also a better stability at high speed. Feel free to contact me for more information.
Alessandro
20190603_180151_HDR.jpg
IMG_20190830_121347_725.jpg
20190603_180139_HDR.jpg
20190605_094759.jpg
20191008_105555_HDR.jpg
Yellow Group-Turn 4-CVR_0408_0931_Oct1919_CaliPhoto.jpg
IMG_20191011_130648_303.jpg
Brother/fratello,
Those rods you installed how long are they? I installed that 777 G.T. 500 replica bumper on my 18, looks good but is F...... weak... I can’t stand it
 

Flyhalf

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Brother/fratello,
Those rods you installed how long are they? I installed that 777 G.T. 500 replica bumper on my 18, looks good but is F...... weak... I can’t stand it
Remember..you need to attached those to the chassis. The plastic bumper thing is useless.
I use the holes in the crash bar and did extra 2 holes just under. Put 2 nut rivets andattached a alluminium bar. See the pic.
But
If you dont track the car hard and often you dont need it.
I track the car 6months without them.
20200611_204911.jpg
20191004_132424_HDR.jpg
 

Lorenzocinque

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Remember..you need to attached those to the chassis. The plastic bumper thing is useless.
I use the holes in the crash bar and did extra 2 holes just under. Put 2 nut rivets andattached a alluminium bar. See the pic.
But
If you dont track the car hard and often you dont need it.
I track the car 6months without them.
20200611_204911.jpg
20191004_132424_HDR.jpg
Thanks brother! of course I will install them on the chassis.. I have few other structural titanium brackets that I am installing this weekend! All attached to the chassis!
 

Flyhalf

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Thanks brother! of course I will install them on the chassis.. I have few other structural titanium brackets that I am installing this weekend! All attached to the chassis!
Very nice..
I went radical by the way.. :)
Home made. Fast install ( 1min) and release
Perfect for the track.
Awful for daily ( that is why i can disassemble in 1min lol ) :)
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EFI

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Very nice..
I went radical by the way.. :)
Home made. Fast install ( 1min) and release
Perfect for the track.
Awful for daily ( that is why i can disassemble in 1min lol ) :)
What is that made out of? Looks like some waffle material?

Also you should check out the quick video that AJ Hartman made about the trailing edge of the splitter and how it should be shaped. Adding that weather stripping/trim is having adverse effects on its effectiveness.
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