what part would you like to see made for the z4?

solo_the_lad

solo_the_lad

Member
 Colorado, USA
Looking into developing another part, in addition to the intake tube I am making which is still in the works. I want to make something that could be applicable to all the E85 z4's and not just the N52. Right now I am considering a carbon fiber air scoop for the front behind the grille, since the only one on the market is a jenky metal thing (unless you've got one of those Dinan ones from way back). If I made one, it would be properly done. Let me know if anyone would be interested, or if you have something else in mind. Also if someone could verify the air ducts at the front of both preface/ facelift models are the same, that'd be great too.
 
bigwinn said:
Brake cooling ducts like the msport e46 set up?
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This indeed would be a neat part, ill look into it. Are you picturing a duct that just throws air towards the caliper like the e46 one does, or do you mean a duct that is designed to be connected directly to the caliper
 
Personally, I quite like the look and performance gain of the RPI Scoop. Not sure if that was the intake piece you were referring to.

A brake cooling duct would be pretty neat. I know pre-LCI E85s can delete their fog light and run a duct, but, to my knowledge, the post-LCI non-M doesn't really have any options at the moment.
 
solo_the_lad said:
bigwinn said:
Brake cooling ducts like the msport e46 set up?
Click to expand...

This indeed would be a neat part, ill look into it. Are you picturing a duct that just throws air towards the caliper like the e46 one does, or do you mean a duct that is designed to be connected directly to the caliper
Click to expand...

Yeah the first one
 
Some sort of lifetime expansion tank. The plastic ones self grenade every few years… AFAIK Mishimoto did a aluminium one for the e46? So similar concept.
 
An open air filter unit, with heat shield, that isn't silly money :thumbsup:

When I had the 350z they did these for about £85, obviously no performance enhancement but looked good in the engine bay and made a great sound!
 
coldel said:
An open air filter unit, with heat shield, that isn't silly money :thumbsup:

When I had the 350z they did these for about £85, obviously no performance enhancement but looked good in the engine bay and made a great sound!
Click to expand...

like the AFE but less $$ is that what you're getting at
 
kis said:
Some sort of lifetime expansion tank. The plastic ones self grenade every few years… AFAIK Mishimoto did a aluminium one for the e46? So similar concept.
Click to expand...

I honestly don't even know if carbon/ epoxy is chemically resistant to coolant, but this would be cool.
 
Rsipad said:
Personally, I quite like the look and performance gain of the RPI Scoop. Not sure if that was the intake piece you were referring to.

A brake cooling duct would be pretty neat. I know pre-LCI E85s can delete their fog light and run a duct, but, to my knowledge, the post-LCI non-M doesn't really have any options at the moment.
Click to expand...

Yeah the RPI looks effective, do you have to reposition the cross brace for it? for me its hard to justify paying $130 for such a simple metal apparatus :roll:
 
bigwinn said:
Looking into developing another part, in addition to the intake tube I am making which is still in the works. I want to make something that could be applicable to all the E85 z4's and not just the N52. Right now I am considering a carbon fiber air scoop for the front behind the grille, since the only one on the market is a jenky metal thing (unless you've got one of those Dinan ones from way back). If I made one, it would be properly done. Let me know if anyone would be interested, or if you have something else in mind. Also if someone could verify the air ducts at the front of both preface/ facelift models are the same, that'd be great too.
3.0i z4, every aero mod on the planet, stage 3 intake swap + tune. Remember guys, you can't fail if you don't try.
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bigwinn
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Unread post by bigwinn » Sun Mar 10, 2024 9:10 pm

Brake cooling ducts like the msport e46 set up?
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Click to expand...
+1 to this. I'm tracking at the Ring in September, and I've got a weekend there next month to start prep. I'm already expecting to be slightly brake limited on the tighter sections, and fitting ducting looks like DIY ballache.
 
so here's the model I have in mind for the ducting @DaveP
83FDC5B8-3805-4C9D-8A0D-D98D831466EC_1_201_a.jpegE82123F3-8E2A-41B4-A1F7-F09CC516AE43_1_201_a.jpeg

0596C9EB-648A-4043-964F-6D4046E2E8E2.jpeg

with my pretty standard sized aftermarket wheels, we've only got a few cm or so of spare room for the duct to pass by, and my wheel could've still been turned inwards a tad more. Keep in mind too I have stretched tires, so if you had proper track tire fitment, this would leave just about no room between the liner and the tire. What people on the forum have done previously is run some ducting under the car and completely avoided the wheel well, but this isn't a good option for lowered cars, which most people who track their cars will likely be relatively lower... :?

this leaves us with one option as far as I see,
which is to pass an oval shape tube between the CV shaft and the sway bar as shown in the next pic. I don't know if this is a good idea though as I assume the CV shaft travels upwards a decent ways in congruence with the suspension
IMG_7870.jpg

of course there is the option of just having it dump where the yellow circle is ...
0F014962-F66E-4D7D-9A78-F3FF42FF4467.jpeg
however this won't do much good if you are turning right in this case as it will just be blowing air at the tire
 
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