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10-27-2018, 11:20 PM | #67 | ||
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2012 BMW 328i 6-Speed Wagon | Deep Sea Blue with Grey Dakota Leather | Manual Swap, 330i Intake + Tune, 3.15 Helical LSD, Öhlins R&T
(SOLD) 2009 BMW 128i 6-Speed Coupé | Monaco Blue with Black Sensatec | chris_flies' 128i thread Last edited by chris_flies; 10-29-2018 at 10:33 AM.. |
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10-29-2018, 02:54 PM | #68 | ||
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If you only take one thing from anything I'll tell you, please switch to Fusion 360. It's similar to the other major CAD programs (Solidworks, Inventor, PTC Creo) in how it works (sketches with extrusions, cuts, sweeps, etc) so it's a useful program to learn career wise. You can make pretty good drawings and even do some basic FEA on the parts you design.
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10-29-2018, 03:37 PM | #69 | |||
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I'm sorry if I came off super defensive, it's just a frustration I have with our otherwise awesome community of car-loving people.
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2012 BMW 328i 6-Speed Wagon | Deep Sea Blue with Grey Dakota Leather | Manual Swap, 330i Intake + Tune, 3.15 Helical LSD, Öhlins R&T
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10-29-2018, 04:43 PM | #70 |
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If you can draw it a machine shop can probably make you one for a few hundred. You'd be surprised if you find the right shop & someone who is into cars.
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2011 135i w/ DCT | ZSP Sport Pkg | PPK | Ohlins R
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10-30-2018, 08:50 AM | #71 |
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Just found another guy who did this: https://www.locostusa.com/forums/vie...3&start=30
$400 for 3 units of the adapter in CNC'd aluminum. I'll try to get in touch with him, see if he has a spare. You could even ask for his model if it can help or save some time. If you do get your own parts machined, let me know, I might join in on the fun |
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chris_flies3027.00 desertman1232213.50 |
10-30-2018, 10:01 AM | #72 | |
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10-30-2018, 12:59 PM | #73 |
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I'm currently looking at Carbon-Fiber Reinforced Nylon to print with. Improved thermal properties (versus standard nylon), good chemical resistance, and stiffer than most other plastic-based materials (good for bolting parts on to). 3dhubs looks like a great way to have it printed; send in a file > get a quote > get it printed by someone with a printer large enough.
Now I just need some S54 throttles to measure...
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10-31-2018, 09:59 AM | #74 | |
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As for machining a unit in the long run, I have leads on a few local shops that will do it for you and might even consider a prod run if the product is good enough and a deal can be made. If you're dev'ing you're own components from scratch and there's no patents to compete, could be a sale item. Lastly for the velocity stacks consider also getting those spun yourself, shape and form matters especially when you're looking at tight tolerances under the hood. Don't want them pointed too flat, should be upwards if possible. I also see an aftermarket hood in your future to pipe in some nice cool air to the top of the bay
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10-31-2018, 10:59 AM | #75 | |
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10-31-2018, 12:22 PM | #76 | ||||
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11-08-2018, 06:58 AM | #77 | |
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Before: After: The real performance gains came from when I added an opening for fresh air to come in through the hood with a custom scoop that I designed and 3D printed. The scoop was located such that it wasn't right above the air filter housing so water wouldn't get on it when the car wasn't moving. You can see that it was just above the battery: I also added vents in the hood behind the air filter to allow heat to escape: I didn't have any issues with water getting in the filter while driving in the rain either so it really offered the best of a short-ram intake and cold air intake by providing the least air resistance and no heat soak issues or hydro-locking worries. I'm planning on doing something similar with my 135 but since we literally just got it, my wife has given me strict instructions NOT to do anything to compromise the exterior appearance. #TeamHappyWife lol She didn't mind so much I guess since it was an Accord but now that we're in a BMW Just throwing this out there for ideas because this was significantly more cost effective than buying a $400 intake with equal or greater performance benefits.
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11-09-2018, 05:23 AM | #78 |
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On the 135i a cold air intake = hotter air intake & makes no added power. It's just for looks & sound. If you search around you'll find dyno runs showing it makes no performance gains over stock. You are likely better just drilling a few holes in the pre-filter side of the air box to let more air in.
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11-09-2018, 05:33 AM | #79 |
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Another way of looking at it is a second hand Dual Cone Intake costs almost nothing, and has been proven to not decrease performance.
If you're after noise, loose the airbox and put in cones. Also, remove the cowls. I ended up putting them back in because I didn't like the constant 'tickity tickity tick' of n54 injectors/valves. |
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12-03-2018, 04:06 PM | #80 |
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Modeled an adapter for the S54 throttles. Sent file to 3DHubs for an estimate on printing...$460... That was not what I expected lol. So, long story short, this project is on-hold, sorta. That is, at least in it's current stage of imagination and being an idea. I have been speaking with E30ROB who's really excited about the project, and seems like he'll continue moving forward with it. Doing this with the S54 throttles is looking a little unreasonable to me (but still very cool), because, for the money, there are better performance/handling gains to be had. Still, it's far from dead. BPC, at one point, cut-up a stock 328i intake manifold, essentially using the trumpets already in the manifold, and made a whopping 280whp, with nothing but headers, that intake, and an 8200rpm redline (that is not going to happen in my car lol). (https://www.e90post.com/forums/showp...28&postcount=9) That is an awesome, awesome number, especially for the $50 cost of a standard N52 manifold, and probably some tuning. It'll take some brainstorming to figure out how to get it to work well for a street car, but it is an interesting proposition, and a much more realistic one for me. The real question is if Valvetronic's failure position can be changed to idle instead of WOT, because without throttle bodies, a failure to WOT would be...exciting. At that point, it's easy to carry the four or five tools necessary to change a Valvetronic motor with me in the car. BPC dyno vid:
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12-06-2018, 07:59 PM | #81 |
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Doh!
I'm sad to hear that. Did you look into having the adapter machined instead of 3D printed? You can get an instant quote in eMachineShop's software. Price goes down a lot as soon as you increase the quantity from 1 to a few pieces. I'm sure there are a few of us who'd join in. Me first 🙋🏻 |
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10-07-2019, 11:15 AM | #82 |
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Perhaps try the euro spec airbox which is much easier to do modifications on. Just in stock form it adds some really nice noise when you get on the throttle. You'd also be able to put spacers between the box and the lid, without having to remove the entire intake making it easier to vary the height of the spacer to get the exact volume you want. Just my .02 cents. I got mine shipped from the UK for about $175 and it took all of 23 hours to get to my doorstep. I may try the spacers over the weekend. I love the sound I'm getting with my silicone intake hose and euro airbox, but I think I want just a tad bit more
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10-18-2019, 10:25 AM | #83 | |
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3D printing doesn't require much skill at all, but requires pretty significant investment for the high grade prints/materials. It's also misleading to prototype with in the wrong hands. The $460 quote doesn't surprise me in the slightest. I can offer my services to anyone who's looking for design optimizations for manufacturing. Lots of beginners screw themselves with features they don't realize multiply the costs many times over and they're often easily designed out.
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02-12-2020, 04:41 PM | #84 |
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Bit of a thread bump, but just ordered the 130i Sound Generator, P/N 13717559121 and mounting grommet 13711702508. I expect it to be good combined with the PI and PE, but not overwelming. Will report back.
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02-12-2020, 04:43 PM | #85 | |
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02-12-2020, 04:48 PM | #86 |
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The biggest difference between the two is that the 130i ducts up to and is aimed at the firewall, while the Z4 goes through a hole through the firewall. The 130i generator is a 10 minute retrofit. The actual drum portion of the generators looks the same, but I've no idea what different tuning has been done to them.
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02-12-2020, 04:57 PM | #87 |
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Do you happen to have the diagram showing where’d these fit into the intake tract?! I have a solid elbow and modified stock air box right now.
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02-12-2020, 05:04 PM | #88 | |
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