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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 Fri, Dec-01-2017, 02:46:30 PM   #101
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Default Re: Designing a classy and timeless hood with functional heat reduction

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Originally Posted by Obioban View Post
The engine bay is pretty water proof-- I can't see any issue from there.

The negative effect I see is the air going into the climate system is hot, making it have to work a lot harder, and potentially stinky, if you have any leak.
Yep, that was initially very much a concern, especially w/a catless exhaust (although I'm currently running an HFC). But real world, in my case anyway, it hasn't seemed to have caused any issues; however, I'm def not advocating that everyone go run for their drills and hole saws-lol. My car is also far from being representative of your avg. daily driven M3. I think I used my AC once in the 8 yrs that I've owned my car, and have since ditched the AC system altogether...sooo, I def can't comment on any effects to the AC system operation that this mod may cause. My car only retains heat, but I haven't really noticed any funky odors w/the heat blasting away. I would like to think (maybe optimistically) that due to a slight chimney effect, that hopefully, most of the bad vapes are being sucked right past the filter and out the hood vent. Anyway, mod w/discretion as always folks.
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Old Fri, Dec-01-2017, 02:49:02 PM   #102
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Default Re: Designing a classy and timeless hood with functional heat reduction

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If you wouldnt mind and can find some time...do you think you can pop the cover off and take the filter out so you can take a few pics for us? Id like to see exactpy where you you made the holes.
I'll try Lloyd, but no promises!
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Old Fri, Dec-01-2017, 02:50:53 PM   #103
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Default Re: Designing a classy and timeless hood with functional heat reduction

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Yep, that was initially very much a concern, especially w/a catless exhaust (although I'm currently running an HFC). But real world, in my case anyway, it hasn't seemed to have caused any issues; however, I'm def not advocating that everyone go run for their drills and hole saws-lol. My car is also far from being representative of your daily driven M3. I think I used my AC once in the 8 yrs that I've owned my car, and have since ditched the AC system altogether...sooo, I def can't comment on any effects to the AC system operation that this mod may cause. My car only retains heat, but I haven't really noticed any funky odors w/the heat blasting away. I would like to think (maybe optimistically) that due to a slight chimney effect, that hopefully, most of the bad vapes are being sucked right past the filter and out the hood vent. Anyway, mod w/discretion as always folks.
I actually mean leaks like oil leaking on the headers/burning, but exhaust leaks too, as you say!
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Old Fri, Dec-01-2017, 03:09:32 PM   #104
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Default Re: Designing a classy and timeless hood with functional heat reduction

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Yep, that was initially very much a concern, especially w/a catless exhaust (although I'm currently running an HFC). But real world, in my case anyway, it hasn't seemed to have caused any issues; however, I'm def not advocating that everyone go run for their drills and hole saws-lol. My car is also far from being representative of your daily driven M3. I think I used my AC once in the 8 yrs that I've owned my car, and have since ditched the AC system altogether...sooo, I def can't comment on any effects to the AC system operation that this mod may cause. My car only retains heat, but I haven't really noticed any funky odors w/the heat blasting away. I would like to think (maybe optimistically) that due to a slight chimney effect, that hopefully, most of the bad vapes are being sucked right past the filter and out the hood vent. Anyway, mod w/discretion as always folks.
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I'll try Lloyd, but no promises!


My car isnt a daily either but mostly driven during the summer. Since i have a spare housing im willing to give it a try. Any issues and ill just swap it right back.
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Old Fri, Dec-01-2017, 04:04:41 PM   #105
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Default Re: Designing a classy and timeless hood with functional heat reduction

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I actually mean leaks like oil leaking on the headers/burning, but exhaust leaks too, as you say!
What, an M3 w/fluid leaks??? Fake news!?

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My car isnt a daily either but mostly driven during the summer. Since i have a spare housing im willing to give it a try. Any issues and ill just swap it right back.
Ya, I know, you're too busy modding-like me. Sounds like a plan!
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Old Fri, Dec-01-2017, 04:30:03 PM   #106
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Default Re: Designing a classy and timeless hood with functional heat reduction

U can easily fix the fumes thingy. Two tubes that seal to the ventz end of story
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Old Fri, Dec-01-2017, 06:57:38 PM   #107
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Default Re: Designing a classy and timeless hood with functional heat reduction

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As you know, it's not my daily, and the drain holes at the back of the housing are still there and functional. I tried to drill at some of the elevated points on the housingóhaven't noticed any ill effects to date. Been like this for about 3-4yrs. now. I guess one could always use some tape (over the holes) or something as a temporary means if you were worried about water entering the engine compartment while washing.
Makes sense. Yes mine isnít my daily but I do like to detail and wash the thing. Plan on getting a pressure washer/foam canon setup soon. I think some tape should work though. Or I can just stuff a bunch of towels in the area. Iím sure I can make it work. Just wondering if you came up with any solutions.

Quote:
Originally Posted by stash1 View Post
Yep, that was initially very much a concern, especially w/a catless exhaust (although I'm currently running an HFC). But real world, in my case anyway, it hasn't seemed to have caused any issues; however, I'm def not advocating that everyone go run for their drills and hole saws-lol. My car is also far from being representative of your avg. daily driven M3. I think I used my AC once in the 8 yrs that I've owned my car, and have since ditched the AC system altogether...sooo, I def can't comment on any effects to the AC system operation that this mod may cause. My car only retains heat, but I haven't really noticed any funky odors w/the heat blasting away. I would like to think (maybe optimistically) that due to a slight chimney effect, that hopefully, most of the bad vapes are being sucked right past the filter and out the hood vent. Anyway, mod w/discretion as always folks.
Yeah I pretty much use the car the same way. Since I have owned the car I have not used AC once. It will be removed as well. Itís just extra weight that I donít need.

Good news at no real big drawbacks from what you have explained. I really think this is my current ideal solution. Completely stealth and removes some trapped engine heat. Thanks again for sharing that idea Stan.

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Old Sat, Dec-02-2017, 01:53:07 AM   #108
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Default Re: Designing a classy and timeless hood with functional heat reduction

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Makes sense. Yes mine isnít my daily but I do like to detail and wash the thing. Plan on getting a pressure washer/foam canon setup soon. I think some tape should work though. Or I can just stuff a bunch of towels in the area. Iím sure I can make it work. Just wondering if you came up with any solutions.



Yeah I pretty much use the car the same way. Since I have owned the car I have not used AC once. It will be removed as well. Itís just extra weight that I donít need.

Good news at no real big drawbacks from what you have explained. I really think this is my current ideal solution. Completely stealth and removes some trapped engine heat. Thanks again for sharing that idea Stan.

NP Brian, but that's the last speed tip that you guys are gettin out of meóI can't give away all of my secret squirrel stuff!
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Old Sat, Dec-02-2017, 06:22:14 AM   #109
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Default Re: Designing a classy and timeless hood with functional heat reduction

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Radiator is comming out at the end of this week. Headers + Catted section 2 will come out arround Feb, so in 3-4 months time. Keep in mind we wount be working over the holidays obviously. We should have an oil cooler at that point as well.

We are working out our cam deal at the moment with the German company as we speak and with the billet cam-follower kit as well, these should be availiable arround that time as well. Valve Springs are already availiable, we just need to get some things sorted before we start offering them. They are stress tested to 9300 rpm with high-lift cams.



We are open to ideas. Once we open it all up and get a good look at everything we will see what we can come up with. Currently we have 3 items due to release in the next 15 days, so we havn't had mutch time to do so. I presume we will be reusing the stock cover, but if we find that it compromises our idea in any way, we will be creating our own. I will keep you guys posted.

Best regards,
Antony
Will there be a catless version for "offroad" use?
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Old Sun, Dec-03-2017, 03:41:26 PM   #110
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Default Re: Designing a classy and timeless hood with functional heat reduction

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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:


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?
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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)