dmilzoff

I needed to remove the front fender liner for brake ducts and thought about not reinstalling them (to reduce weight).
The car is an 89 944S2 track only.
What kind of damage / issues will I have if I remove front and rear fender liners?

smlporsche

I was wondering the same thing and also wondering about vented louvers to increase downforce (or reudce lift as the case may be...)

BTW same car...

JerryW

My 83 came without them. For a race car shouldn't be an issue.

RedlineMan

Hey;

I would guess that areo would be diminshed without them. Porsche usually pays attention to such things, and if they have a component, it is usually for good reason. Beyond keeping all the clagg out of the fender wells, it might increase the lift on the front end by increasing the effective volume and surface area of the fender well.

Just a notion.

Bull

They protect against dings in the fender area, "outies", from stones, etc. hitting the fender from the inside. My Cup Car had a couple of minor marks from stones attempting to get through the fenders in the rear. Porsche is worried about street cars for most of the cars we are discussing.

shiners780

My only concern with not using them are the brake and fuel lines running through the right front wheel well on the 944's. The fender liner provides at least a bit of protection for the lines. A chunk of debris or a blown tire could possibly take out those lines...either of which would not end well.

BTW, you have removable REAR fender liners?

schwank

I've not run them most of this year, after one melted when my cage was put in. I have spares just haven't bothered to reinstall yet.

dmilzoff

I have only removed 1 front liner in preparation for the brake duct installation. My thought was, that as long as I was removing the front liners to reduce weight, why not remove the rear liners also? Is there other delicate parts in the rear wheel wells? I do have steel brake lines, but destroying one at the track scares me.
If I do this, I plan to paint the wheel wells with a rubberized bed liner type material to reduce future rust and reduce dents from flying tire rubber and stones.

Geoffrey

So, you are going to remove the relatively lightweight wheel liners and replace them with heavy truck bed protectant? I would run the fender liners for the above mentioned reasons, they keep the fenders from being damaged. You can cut a hole in them to run the brake ducting.

dmilzoff

OK. Logic wins.

Mikelly

Aerodynamically speaking, you will absolutely notice a difference... I'd run them. Without them the amount of "dirty air" zone opens up in volume and has many more edges to cling to...

Mike

shiners780

I'll ask again....you have removable rear fender liners?

smlporsche

Mike -
Just playing the devils advocate here but why do race cars like the Spyder not have them?

Does anyone know if the Cup and RSR's have them?

Most of us are adapting a street car for track applications. I'm wondering what/why Porsche does what it does with its factory produced race cars.

dmilzoff

Jim wrote: I'll ask again....you have removable rear fender liners?

I stand corrected. I needed to go out and look, but no. There are no rear liners on my car.

Geoffrey

The 964/993/996/997 Cups have fender liners. My RSR has front and rear fender liners.