3d printed intake for N/A NA miatas - Page 7 - Miata Turbo Forum - Boost cars, acquire cats.

Welcome to Miataturbo.net   Members
 


Engine Performance This section is for discussion on all engine building related questions.
Sponsored by:
Sponsored by:

Reply
 
 
 
LinkBack Thread Tools Search this Thread
Old 07-19-2014, 12:30 PM   #121
Senior Member
Thread Starter
iTrader: (1)
 
Join Date: Jul 2012
Location: durham NC
Posts: 758
Total Cats: 105
Default

I did my first data logging with the new crossover today. The results are kind of mixed. It still heat soaks when you park it, it just takes longer. Today I left the key on so the log could keep running after I parked it took 26 minutes to pick up 60 degrees (which is where it levels out)

For the drive I logged, I started with a fully heat soaked car showing 140f MAT and the ambient temp was 77. The minimum IAT number was 81.2 and I was consistently seeing 82 degrees on the gauge when cruising. 5 degrees over ambient is an improvement. I also noticed that air temps only start to climb again when you are under 25mph or when you have the throttle completely closed. Under 25mph it picked up 1-3 degrees.


I am going to try putting the IAT sensor in the end of the air filter. How do the GM open air sensors react to moisture? Is it going to kill the sensor or throw the reading way off if the filter ingests a small amount of water?

Last edited by asmasm; 07-19-2014 at 06:18 PM.
asmasm is offline   Reply With Quote
Old 07-20-2014, 01:16 PM   #122
Senior Member
Thread Starter
iTrader: (1)
 
Join Date: Jul 2012
Location: durham NC
Posts: 758
Total Cats: 105
Default

Well I did this and will test it tomorrow:




Also, because I can't help myself- I modeled up split molds for a longer dual wall carbon fiber tube that would run from the duct to the throttle body. My idea is to fit a check valve to the outer surface and hook it up to the manifold as a vacuum source. 70% chance it doesn't do anything but once I get an idea like this in my head I have to follow through with it.

Attached Thumbnails
3d printed intake for N/A NA miatas-zdu8v1x.jpg  
asmasm is offline   Reply With Quote
Old 07-20-2014, 01:25 PM   #123
Cpt. Slow
iTrader: (25)
 
curly's Avatar
 
Join Date: Oct 2005
Location: Oregon City, OR
Posts: 12,071
Total Cats: 511
Default

Looks nifty. Wonder if it could act as a heat shield too? Haven't been keeping up on this, but I like it. My friend's intake by the back of the intake manifold was seeing 120* on a 85* day after being heat soaked. Fully DEI wrapped too.
curly is offline   Reply With Quote
Old 07-25-2014, 06:51 PM   #124
Senior Member
Thread Starter
iTrader: (1)
 
Join Date: Jul 2012
Location: durham NC
Posts: 758
Total Cats: 105
Default

I did 30 minute VEAL drive today and it was cooler out than my earlier testing. 30 minutes probably isn't enough to get everything fully heated up but at the end of my drive my cruising IAT was 2.1 degrees above ambient I still haven't moved the sensor to the filter- I layed up a heat shield today and I want to get that in place before I make the switch. I am pretty confident that the real IAT numbers are close enough to ambient air that measuring the air outside of the car will be most accurate.

Also, can anyone recommend a good dyno tuner within 100 miles of the RDU area? I want to get the fuel in place myself but I would rather have someone who knows what they are doing figure out spark.
asmasm is offline   Reply With Quote
Old 07-27-2014, 11:45 AM   #125
Cpt. Slow
iTrader: (25)
 
curly's Avatar
 
Join Date: Oct 2005
Location: Oregon City, OR
Posts: 12,071
Total Cats: 511
Default

Sending you a PM.
curly is offline   Reply With Quote
Old 08-13-2014, 04:10 PM   #126
Senior Member
Thread Starter
iTrader: (1)
 
Join Date: Jul 2012
Location: durham NC
Posts: 758
Total Cats: 105
Default

I got one of these off of ebay for $50:
Savant VP100 VP 100, Rotary Vane Dual Stage Mechanical Vacuum Pump Rebuilt

Now I can vacuum bag an entire boat! The first project with it is going to be a heat shield. After that I am going to look at making solid carbon versions of the duct.
asmasm is offline   Reply With Quote
Old 08-14-2014, 08:16 AM   #127
Junior Member
 
Join Date: Mar 2011
Location: Eindhoven, The netherlands
Posts: 170
Total Cats: 9
Default

What program are you using to draw the parts? Looks like 3Dsmax?
Vincentmiata is offline   Reply With Quote
Old 08-14-2014, 08:19 AM   #128
Senior Member
Thread Starter
iTrader: (1)
 
Join Date: Jul 2012
Location: durham NC
Posts: 758
Total Cats: 105
Default

Yeah, everything is done in 3dsmax.
asmasm is offline   Reply With Quote
Old 08-15-2014, 12:35 PM   #129
Senior Member
Thread Starter
iTrader: (1)
 
Join Date: Jul 2012
Location: durham NC
Posts: 758
Total Cats: 105
Default

I finally ran the car with the IAT sensor in the filter. Hot restarts are now nice and smooth. I will try and find the time to do some data logging with it this weekend and I hope to have a heat shield made in the next few weeks.
asmasm is offline   Reply With Quote
Old 08-15-2014, 01:05 PM   #130
Boost Czar
iTrader: (61)
 
Braineack's Avatar
 
Join Date: May 2005
Location: Chantilly, VA
Posts: 72,469
Total Cats: 1,698
Default

well hey look at that, doing the simple thing I suggest worked...
Braineack is offline   Reply With Quote
Old 08-15-2014, 02:41 PM   #131
Senior Member
Thread Starter
iTrader: (1)
 
Join Date: Jul 2012
Location: durham NC
Posts: 758
Total Cats: 105
Default

I think I am going to try one of these with a 57mm crossover and a 2.5" elbow for the stock TB. It will be interesting to see how much difference it makes on the stock throttle body in a/b testing. Either way it funnels down to 57mm but I think this will make a cleaner transition with the tradeoff of not fitting skunk2 TBs.
Attached Thumbnails
3d printed intake for N/A NA miatas-taper.gif  
asmasm is offline   Reply With Quote
Old 08-15-2014, 02:45 PM   #132
Boost Czar
iTrader: (61)
 
Braineack's Avatar
 
Join Date: May 2005
Location: Chantilly, VA
Posts: 72,469
Total Cats: 1,698
Default

i doubt that will make any measureable difference.
Braineack is offline   Reply With Quote
Old 08-15-2014, 02:48 PM   #133
Senior Member
Thread Starter
iTrader: (1)
 
Join Date: Jul 2012
Location: durham NC
Posts: 758
Total Cats: 105
Default

Yeah. The up side is that it makes air gaps and clearance for stock type radiators better.

Edit:
And there is also a large difference in the total intake volume.
asmasm is offline   Reply With Quote
Old 08-15-2014, 02:59 PM   #134
Boost Czar
iTrader: (61)
 
Braineack's Avatar
 
Join Date: May 2005
Location: Chantilly, VA
Posts: 72,469
Total Cats: 1,698
Default

just hurry up and make over-the-top intercooler kits and actually make a **** ton of money doing this.
Braineack is offline   Reply With Quote
Old 08-15-2014, 03:13 PM   #135
Senior Member
Thread Starter
iTrader: (1)
 
Join Date: Jul 2012
Location: durham NC
Posts: 758
Total Cats: 105
Default

What is the hottest air temp you expect to see coming out of a turbo setup? 300 degrees? I think I would need a really specialized epoxy and then a controlled oven post cure to make a laminate part that would stay together.
asmasm is offline   Reply With Quote
Old 08-15-2014, 03:22 PM   #136
Elite Member
iTrader: (1)
 
Leafy's Avatar
 
Join Date: Jun 2012
Location: NH
Posts: 9,037
Total Cats: 99
Default

Your pipe is probably good for the cold side of the intercooler. Going under on the hot side just make more sense. The trouble is getting an intercooler with inlets and outlets in the right orientation.
Leafy is offline   Reply With Quote
Old 08-15-2014, 03:33 PM   #137
Senior Member
Thread Starter
iTrader: (1)
 
Join Date: Jul 2012
Location: durham NC
Posts: 758
Total Cats: 105
Default

I just went into the garage and test fit the passenger side hole. It would be doable with crossflow radiator and a redesign of the part. The hot side could be done as well but that would need more equipment.
asmasm is offline   Reply With Quote
Old 08-15-2014, 04:50 PM   #138
Cpt. Slow
iTrader: (25)
 
curly's Avatar
 
Join Date: Oct 2005
Location: Oregon City, OR
Posts: 12,071
Total Cats: 511
Default

I just got back from the dyno with one of these on a 1.6. Very good results, I'll post a real explanation when I'm back at a real computer.
curly is offline   Reply With Quote
Old 08-15-2014, 04:50 PM   #139
Senior Member
Thread Starter
iTrader: (1)
 
Join Date: Jul 2012
Location: durham NC
Posts: 758
Total Cats: 105
Default

Awesome.
asmasm is offline   Reply With Quote
Old 08-15-2014, 05:31 PM   #140
Junior Member
 
Join Date: Mar 2011
Location: Eindhoven, The netherlands
Posts: 170
Total Cats: 9
Default

Is it easy to convert a 3D model from 3D Studio Max to a 3D printer?

Ive got around 1500 Miata parts in 3D.. all made in 3D Studio Max for a big costumer of mine.
Vincentmiata is offline   Reply With Quote
 
 
Reply

Related Topics
Thread Thread Starter Forum Replies Last Post
Bunch of NB stuff - mspnp2, begi intake mani, injectors mikeflys1 Miata parts for sale/trade 12 05-01-2016 09:51 AM
3rd Time's a Charm...hopefully. zephyrusaurai Meet and Greet 2 09-28-2015 10:59 PM
Another Alternator thread ihiryu General Miata Chat 9 09-28-2015 10:22 AM
starting issue Johnny Tater Engine Performance 3 09-23-2015 06:10 PM
1991 Turbo Miata partout tottestad Miata parts for sale/trade 18 09-14-2015 07:52 PM


Thread Tools Search this Thread
Search this Thread:

Advanced Search

Posting Rules
You may not post new threads
You may not post replies
You may not post attachments
You may not edit your posts

BB code is On
Smilies are On
[IMG] code is On
HTML code is Off
Trackbacks are Off
Pingbacks are Off
Refbacks are Off



All times are GMT -4. The time now is 03:19 AM.