BQ Tuning N54 Intake Conversion
- Thread starter doublespaces
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We're going to start mailing him Ho-Ho's from Amazon's Pantry, on subscription. That'll fix'em.
Filippo
Filippo
Have a look at my 740i intake setup on my 335i.
https://bmw.spoolstreet.com/threads/740i-intake-setup-on-335i.4218/
https://bmw.spoolstreet.com/threads/740i-intake-setup-on-335i.4218/
Nothing bro, someone else did similar though post above. My Z4 is just sitting in my garage catching cobwebs. Waiting for when people get on ice and slower for mei to have the time to start again on the project.
Working on an adapter for the 740 air box to the stock snorkel for the Z4. The Stock snorkel is a bit restrictive for what we are trying to do with more air flow so trying to a second 3" inlet pipe that could go to the headlight area or maybe even the wheel well.
This does not fit but shows the idea...
If this works out, We'll see if we can open these stock pipes a bit with another adapter (instead of the stock 740 Y-pipe)
This does not fit but shows the idea...
If this works out, We'll see if we can open these stock pipes a bit with another adapter (instead of the stock 740 Y-pipe)
I need to change some of those numbers for the 740. I didn't measure the ID of the Y pipe shown in the photo above.
when I get to it, I'll update this post to indicate the correct numbers.
when I get to it, I'll update this post to indicate the correct numbers.
Got back to this a bit. Going to print a final part in ABS because .... well because. The thing is I can print another with a different material as needed.
That’s pretty cool, but the small diameter seems like a significantly smaller cross section than the snorkel coming from the grill. Also, it might be worth adding some very large radii to the merges from the 2 into 1 to smooth out the airflow. Great job though!
Well, total affective area, ae, is still going to be your main hurdle, and those two inlets don’t look like they’ll have the same ae as the part they mate to.
let me make sure I’m very clear though. I think this is an awesome projects and am very impressed with what has been made so far. This kind of stuff is so much more difficult when you don’t have all the industrial grade design and fab equipment.
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That’s correct. The merge looks good, but I would smooth out the transitions outlined in blue with as large of a radius as you can. The smoother the transition, the better/more laminar the flow.
btw, how do you like your race deck flooring? Did you consider swisstrax? What swayed you? Feel free to answer via pm.
@NoQuarter I recall you and I ran some measurements back and forth on this, some time back, trying to figure out what made sense. I'm going to see if I can find the info in a Google sheet somewhere ... The airbox filter is nominal from E89 to F01 - ~6%.
@The Convert definitely understand your constructive criticism. I was just adding that the existing area at the snorkel squeezed over the top of the radiator core support is astonishingly small.
I've sourced the F01 intake muffler. and hope to run a version of the pipe setup Jim shows (thanks to @BQTuning on the legwork originally on all this, BTW).
Filippo
@The Convert definitely understand your constructive criticism. I was just adding that the existing area at the snorkel squeezed over the top of the radiator core support is astonishingly small.
I've sourced the F01 intake muffler. and hope to run a version of the pipe setup Jim shows (thanks to @BQTuning on the legwork originally on all this, BTW).
Filippo
Give this a look see when you get a chance.
Creating Variable Radius Fillets | Fusion 360 | Autodesk Knowledge Network
Use the Fillet command to add rounds and fills to edges using a variable radius.A variable-radius fillet has a radius that varies along its length. You set a radius for the start point and endpoint. You can also add intermediate points along the length, each of which can have a different...
knowledge.autodesk.com
