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E46 M3 (2001-2006) Engine: S54 - Max Hp: 333 hp at 7,900 rpm / 262 lb/ft at 4,900 rpm
Total Produced: 45,000+ - Years Produced: 2001 to 2006.


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Old Sun, Dec-03-2017, 04:57:35 PM   #111
Obioban
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Default Re: Designing a classy and timeless hood with functional heat reduction

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Originally Posted by Bubblegunz View Post
OUR GOALS

I think Obioban is on the money when he said that there are many functional aero hoods on the market already. One can even purchase vents separately, and from what I see these will be 100 times more effective than a hood.

Again, as has been said, that is not where we are aiming. Trackcars and track-oriented builds are not where we want to go with our items - there are plenty of companies making such items anyway.

We are trying to make a carbon item, which will save arround 7kg (16lbs) from the front, while adding a bit more venting, with the main focus of keeping the classic lines of the car in tact. We could actually make a hood without vents, just the standard one in carbon fiber, and make it fit perfect - as if OEM - which is also a way to go if needbe. It is a part of an ongoing project we are working on with the e46 m3 as the main focus.

RESEARCH

As I have contacts with a friend who had a 750hp e46 m3 supercharged drift/track car who has a lot of experience - owning it for over 5 years and modifying it constantly, while testing different things. One of the main problems with heat is the polen filter housing, which blocks airflow to cilinder 5 and 6. It is probably why the CSL used a thinner housing, so that it can at least release heat better. What I was told was, that once he removed the whole thing all together, the engine temps dropped dramatically, an average of 10-12 degrees celcius at least, but he had a huge issue when it would start raining, as water went into places it shouldnt go to. It is actually quite logical, as EU engines tend to throw head-gaskets usually between cilinders 5 and 6, usually cilinder 6 going first... So we might be working on a new carbon fiber polen filter housing first, and then go for a hood... If this works, even venting the hood might not be required, unless we come up with a really amazing design.



Maybe we can combine function, style and suppleness? :P A couple of more ideas, derived from the motorsport24 hoods, using photoshop:


The more I think about this, the more I come around to the design pictured above
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Old Sun, Dec-03-2017, 06:02:09 PM   #112
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Default Re: Designing a classy and timeless hood with functional heat reduction

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Originally Posted by nasieg View Post
I'm a bit behind on reading in this thread. Like your approach and would be interested in in exactly this. In general, I like your guys' approach.

Seems like an optimistic weight reduction though? I remember going from a steel hood to a CF hood on a e30 and it was just about that amount, but being that the e46 M3 hood is aluminum (to my best knowledge) loosing 7kg seems almost impossible to me? Either way, even if it is less and offers some cooling, it would get my attention.

I like those bumpers with integrated splitters. Probably not very street friendly, but maybe a spare one for the track. Who makes those?
http://www.motorsport24.de/en/m3-e46-karosserie_/
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Old Sun, Dec-03-2017, 06:07:21 PM   #113
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Default Re: Designing a classy and timeless hood with functional heat reduction

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Thanks!
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Old Mon, Dec-04-2017, 02:02:50 AM   #114
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Default Re: Designing a classy and timeless hood with functional heat reduction

That motorsport24 hood looks sweet. I like everything I've read from bubblegunz so far, looks like a lot of promising products will be on the horizon for our cars.

I have one product suggestion: since there seems to be a lightweight carbon offering for almost every panel thus far, it would be awesome if you guys looked into some street legal carbon fiber doors. There's a lot of weight to be saved there. As of now, only Mashaw offers CF doors but those require a roll cage. I don't know how viable this is, but I wonder if its possible to make a carbon door shell with steel bracing inside to still retain side impact collision safety. Just a thought.
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Old Mon, Dec-04-2017, 07:33:43 AM   #115
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Default Re: Designing a classy and timeless hood with functional heat reduction

http://www.burgertuning.com/cowl_fil...w_135_335.html

I didn't read the whole thread but people on E9X chassis have been doing this for a while now.

They can also retrofit the E9X M3 cowls too:

http://www.e90post.com/forums/showthread.php?t=1205775
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Old Mon, Dec-04-2017, 09:29:29 AM   #116
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Default Re: Designing a classy and timeless hood with functional heat reduction

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Originally Posted by curiouz_g View Post
http://www.burgertuning.com/cowl_fil...w_135_335.html

I didn't read the whole thread but people on E9X chassis have been doing this for a while now.

They can also retrofit the E9X M3 cowls too:

http://www.e90post.com/forums/showthread.php?t=1205775
That is interesting. I think we might be able to change the design a little bit and possibly offer it with another filter custom made for this application. I learned that we could save arround 5kg from the filter housing, which is incredible. I cannot believe how heavy the stock one is. It is arround 3kg for the housing and another 2kg for the hanging plate... The cover is extra. From carbon both items will ammount to 300-400 grams the most. So good weight savings there as well!

We are leaning towards this design as well for the moment, with 2 rather than 3 vents. It looks subtle, it vents air right before the bulge, which will reduce drag by a tiny bit, and more importantly, wount be detrimental to the flow, and it is right behind the radiator. Seems like a win-win so far!


upload my pictures

Here is one more car we know of - the Manhart CSL V10. It has an interesting hood, although they needed the two intakes on the top to feed air to that S85 underneeth. We were thinking of reversing those maybe, but the effect wasn't too good looking so we scrapped it. Anyways, just sharing some stuff... here is a pic of the car I am talking about



I know we hve announced a lot of new poducts and there are many questions... Please PM me with questions, as this is the hood thread. All upcomming products will have threads supporting their development, so fear not.. we got ya. This is the last I will answer here as they were mentioned:

EXHAUST:

We will probably make a decat version, although our main version and dynos provided will include HJS EURO6 200 cell cats with TUV approval.

CAMS/SPRINGS/rockers:

Very soon to come, post New Year will be availiable.

BREMBOS:

Again, soon to come. More info on the thread for the brakes we will make when we have the kit ready. Will come with AP-Racing discs out of the box. Not mutch more info I can give atm.

Now lets go back on topic

-ANtony

Last edited by Bubblegunz; Mon, Dec-04-2017 at 09:33:40 AM.
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Old Mon, Dec-04-2017, 04:17:54 PM   #117
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Default Re: Designing a classy and timeless hood with functional heat reduction

Just in case you haven't seen these...not e46, but stylistically "in the family"
hood2.jpg

Hood1.jpg
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Old Mon, Dec-04-2017, 06:02:08 PM   #118
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Default Re: Designing a classy and timeless hood with functional heat reduction

Looking forward to it. I know the OEM vents on my E90 M3 allows rain into the engine bay, which I'm not too happy about. Hopefully your design will allow less than that while still allowing heat to exit the engine bay. I need all the cooling I can get.
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Old Mon, Dec-04-2017, 10:39:17 PM   #119
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Default Re: Designing a classy and timeless hood with functional heat reduction

I don't think anyone has replicated the M3 GTR street version hood. Might be worth looking into.


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Old Sat, Dec-09-2017, 04:08:37 PM   #120
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Default Re: Designing a classy and timeless hood with functional heat reduction

Kinda digging this one (not the body kit..). Not sure about cooling effectiveness

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Discussing Designing a classy and timeless hood with functional heat reduction in the E46 M3 (2001-2006) Forum - Engine: S54 - Max Hp: 333 hp at 7,900 rpm / 262 lb/ft at 4,900 rpm
Total Produced: 45,000+ - Years Produced: 2001 to 2006. at BMW M3 Forum.com (E30 M3 | E36 M3 | E46 M3 | E92 M3 | F80/X)