Aidan's SCCA Stock Class Autocross Build (Road Course is Too Scary) - Page 236 - Miata Turbo Forum -Boost cars, acquire cats.

Welcome to Miataturbo.net   Members
 


Build Threads Building a motor? Post the progress here.

Reply
 
 
 
LinkBack Thread Tools Search this Thread
Old 10-19-2015, 05:18 PM   #4701
SadFab Sales Lady
Thread Starter
iTrader: (5)
 
aidandj's Avatar
 
Join Date: Apr 2014
Location: Beaverton, USA
Posts: 14,842
Total Cats: 937
Default

Faeflora

Tell me bout slashcuts
aidandj is offline   Reply With Quote
Old 10-19-2015, 05:35 PM   #4702
SadFab Sales Lady
Thread Starter
iTrader: (5)
 
aidandj's Avatar
 
Join Date: Apr 2014
Location: Beaverton, USA
Posts: 14,842
Total Cats: 937
Default

deezums

My filter on the exhaust side has become basically saturated with oil and is probably already dripping. What do we think about another HD catch can on the exhaust side with a filter on one side?
aidandj is offline   Reply With Quote
Old 10-19-2015, 05:43 PM   #4703
Sadfab Union President
iTrader: (2)
 
Join Date: May 2014
Location: Kansas
Posts: 2,690
Total Cats: 114
Default

It would work much the same way, with the only disadvantage being it'll be plumbed in backwards half the time. I don't think it'll really bother it much.

I'm wondering if you aren't gathering oil in baffle on track though, maybe modifying the port size to drain oil back would help, then you wouldn't need the catch can, and less blowbly pressure as a bonus?

I need to open mine and take pictures.
deezums is offline   Reply With Quote
Old 10-19-2015, 05:50 PM   #4704
SOMEOFIT
iTrader: (1)
 
Girz0r's Avatar
 
Join Date: Jun 2014
Location: Austin, TX
Posts: 2,514
Total Cats: 219
Default

Quote:
Originally Posted by aidandj View Post
Faeflora

Tell me bout slashcuts
Miata Turbo Forum - Turbo Kitten is watching you test compression. - Search Results

Does that halp?

http://www.miataturbo.net/esp_search.php?query=slashcut
Girz0r is online now   Reply With Quote
Old 10-19-2015, 05:51 PM   #4705
SadFab Sales Lady
Thread Starter
iTrader: (5)
 
aidandj's Avatar
 
Join Date: Apr 2014
Location: Beaverton, USA
Posts: 14,842
Total Cats: 937
Default

Yeah thats on my list too.

There are some good pictures in that thread where the guy tests the pressure.

Pics from you would be cool too.

Maybe I'll play with scrap aluminum and make a catch can.
aidandj is offline   Reply With Quote
Old 10-19-2015, 05:51 PM   #4706
SadFab Sales Lady
Thread Starter
iTrader: (5)
 
aidandj's Avatar
 
Join Date: Apr 2014
Location: Beaverton, USA
Posts: 14,842
Total Cats: 937
Default

I was hoping for a fun rant. I've done that before.
aidandj is offline   Reply With Quote
Old 10-19-2015, 05:55 PM   #4707
SadFab Sales Lady
Thread Starter
iTrader: (5)
 
aidandj's Avatar
 
Join Date: Apr 2014
Location: Beaverton, USA
Posts: 14,842
Total Cats: 937
Default

And I've been thinking about the clearance issue on the brake calipers. It might have to do with how we cut it real close on the thickness of the rotors. Calipers just flex too much maybe?

This saturday will tell more. I'm going to find some high temp paint or rtv or something and put a layer on the area that rubbed before. Its going to get real annoying if we have to space these differently for every rotor
aidandj is offline   Reply With Quote
Old 10-19-2015, 05:59 PM   #4708
Sadfab Union President
iTrader: (2)
 
Join Date: May 2014
Location: Kansas
Posts: 2,690
Total Cats: 114
Default

I guess it's possible, we are over spec IIRC.

I'm not sure how much extra flex a two piece hat would make up, I'm having a hard time seeing it...

You never felt the pedal going wavy on track right, ever stopped hard in a car with warped rotors? You know the shimmy feel, right?
deezums is offline   Reply With Quote
Old 10-19-2015, 06:05 PM   #4709
SadFab Sales Lady
Thread Starter
iTrader: (5)
 
aidandj's Avatar
 
Join Date: Apr 2014
Location: Beaverton, USA
Posts: 14,842
Total Cats: 937
Default

I got some soft pedal, never wavy pedal.
aidandj is offline   Reply With Quote
Old 10-19-2015, 06:21 PM   #4710
SOMEOFIT
iTrader: (1)
 
Girz0r's Avatar
 
Join Date: Jun 2014
Location: Austin, TX
Posts: 2,514
Total Cats: 219
Default

Quote:
Originally Posted by aidandj View Post
I was hoping for a fun rant. I've done that before.
Here's even the very thread where Fae considers

More Oil Catch Can Contents

And where 18 trolls Fae's said setup.
Slash cuts, whos got the info?

I enjoy ruining your fun
Girz0r is online now   Reply With Quote
Old 10-19-2015, 06:28 PM   #4711
SadFab Sales Lady
Thread Starter
iTrader: (5)
 
aidandj's Avatar
 
Join Date: Apr 2014
Location: Beaverton, USA
Posts: 14,842
Total Cats: 937
Default

Here's the tiny hole mod. Is that what you were talking about deezums?

cam cover blowby flow and crankcase pressure, tiny hole modification
aidandj is offline   Reply With Quote
Old 10-19-2015, 06:38 PM   #4712
Sadfab Union President
iTrader: (2)
 
Join Date: May 2014
Location: Kansas
Posts: 2,690
Total Cats: 114
Default

Yep, that's it or the majority of it. 1.6 is different.
deezums is offline   Reply With Quote
Old 10-19-2015, 06:42 PM   #4713
SadFab Sales Lady
Thread Starter
iTrader: (5)
 
aidandj's Avatar
 
Join Date: Apr 2014
Location: Beaverton, USA
Posts: 14,842
Total Cats: 937
Default

I'll do the hole this winter. Won't enlarge the ports because **** ruining the powdercoating. I'll do that on my 1.8 valve cover.
aidandj is offline   Reply With Quote
Old 10-20-2015, 01:08 PM   #4714
SadFab Sales Lady
Thread Starter
iTrader: (5)
 
aidandj's Avatar
 
Join Date: Apr 2014
Location: Beaverton, USA
Posts: 14,842
Total Cats: 937
Default

Doing more holset reading. **** is pretty mysterious. Everything basically says take this with a grain of salt because were not totally sure its true.

HX-30 came in a 6cm^2 housing and a 12cm^2 housing. I believe there was a 16cm^2 too.

6cm^2 housing equates to a .41 A/R. Which is pretty small. The 12cm^2 is more like a .89 A/R. The wastegates look like ****. And understandably. A lot of the reading I've done shows that wastegates are often "optional" on diesel builds, because they never rev high enough to put the turbo out of the efficiency zone.

So EWG is a must.

The one "documented" HX-30 build I can find was a 99 motor. He hit 18psi at 3800 RPMs. Which really is not too shabby at all. Throw it on a VVT motor with VICS and it should perform a little better.

Video of a 4th gear pull from 3k rpm:


The hx-30 compressor wheel should flow ~35lbs/min. Which is almost exactly a 2860. But the 2860 I've seen has a .64 A/R.

So smaller turbine housing, with similar compressor flow.

And its a T3 flange. So if I hate it I have other options.
aidandj is offline   Reply With Quote
Old 10-20-2015, 01:17 PM   #4715
SadFab Sales Lady
Thread Starter
iTrader: (5)
 
aidandj's Avatar
 
Join Date: Apr 2014
Location: Beaverton, USA
Posts: 14,842
Total Cats: 937
Default

I believe there is also a 9cm^2 housing which would be a nice sweet spot.

6 cm2 = 0.41 A/R
7 cm2 = 0.49 A/R
8 cm2 = 0.57 A/R
9 cm2 = 0.65 A/R
10 cm2 = 0.73 A/R
11 cm2 = 0.81 A/R
12 cm2 = 0.89 A/R
14 cm2 = 0.97 A/R
15 cm2 = 1.05 A/R
16 cm2 = 1.13 A/R
17 cm2 = 1.29 A/R
19 cm2 = 1.37 A/R
aidandj is offline   Reply With Quote
Old 10-20-2015, 03:02 PM   #4716
Senior Member
iTrader: (8)
 
Join Date: Oct 2006
Location: Lexington SC
Posts: 961
Total Cats: 12
Default

Quote:
Originally Posted by aidandj View Post
And I've been thinking about the clearance issue on the brake calipers. It might have to do with how we cut it real close on the thickness of the rotors. Calipers just flex too much maybe?

This saturday will tell more. I'm going to find some high temp paint or rtv or something and put a layer on the area that rubbed before. Its going to get real annoying if we have to space these differently for every rotor
The mini rotors are 22mm thick, the same as the corrado rotors that everyone used to run with the dynalite calipers. Yes, the calipers are sized for 20mm rotors, but there is enough room to fit a 22mm rotor. Due to the additional rotor width there is less room for error and the rotor has to be smack dab in the middle to avoid issues. I looked everywhere for a 100mmx4 lugged rotor that was big enough and 20mm thick, but had no luck, unless you go for the willwood 2 piece.


Did you ever measure your rotor thickness? I was wondering if it might be a little on the tick side.


No one else that uses the dynalite caliper on the 11" mini rotors have reported issues.


Were you ever able to get a picture of the area that was rubbing?


I am 90% confident that the spacer washers you added will take care of your issue.


Thanks for doing all the R&D work for us !
Rallas is offline   Reply With Quote
Old 10-20-2015, 03:03 PM   #4717
SadFab Sales Lady
Thread Starter
iTrader: (5)
 
aidandj's Avatar
 
Join Date: Apr 2014
Location: Beaverton, USA
Posts: 14,842
Total Cats: 937
Default

I'll try and get good ones when i swap pads.
aidandj is offline   Reply With Quote
Old 10-21-2015, 01:37 AM   #4718
SadFab Sales Lady
Thread Starter
iTrader: (5)
 
aidandj's Avatar
 
Join Date: Apr 2014
Location: Beaverton, USA
Posts: 14,842
Total Cats: 937
Default

2nd v-band came in for the exhaust.

Hung the hammock up in the garage too.



I'm debating running stock wiring to the pump. 10 gauge to right before the bulkhead connector. That short of a wiring run should not cause any issues right?

One other solution I have found is the bolt through bulkhead terminals with gasoline safe sealant. Or a stat-o-seal.
Attached Thumbnails
Aidan's SCCA Stock Class Autocross Build (Road Course is Too Scary)-eezswmr.jpg  
aidandj is offline   Reply With Quote
Old 10-21-2015, 02:09 AM   #4719
Elite Member
iTrader: (15)
 
patsmx5's Avatar
 
Join Date: Aug 2007
Location: Houston, TX
Posts: 7,962
Total Cats: 128
Default

Quote:
Originally Posted by aidandj View Post
...
I'm debating running stock wiring to the pump. 10 gauge to right before the bulkhead connector. That short of a wiring run should not cause any issues right?

One other solution I have found is the bolt through bulkhead terminals with gasoline safe sealant. Or a stat-o-seal.
I've done it both ways. I posted data here a while back, but on my 99 I had over 1 volt of voltage drop to the connector from the stock wiring. I rewired it with 10 gauge up to the connector. Later ran new wires through the bulkhead since there were still a few inches of stock small wiring. You get 95% of the gain just running wires to the stock connector though. Basic resistance problem, you reduce the length of the small wire which is highly resistive from 20' to 6 inches.
patsmx5 is offline   Reply With Quote
Old 10-21-2015, 02:23 AM   #4720
SadFab Sales Lady
Thread Starter
iTrader: (5)
 
aidandj's Avatar
 
Join Date: Apr 2014
Location: Beaverton, USA
Posts: 14,842
Total Cats: 937
Default

How did you run wires through the bulkhead?
aidandj is offline   Reply With Quote
 
 
Reply

Related Topics
Thread Thread Starter Forum Replies Last Post
Autocross Class Unknown - An exercise in not caring ChasB Race Prep 31 10-26-2016 09:22 PM
Autocross/time attack build up drivehardaz General Miata Chat 11 07-21-2006 02:39 PM
Red Beast might be for sale... rmcelwee Cars for sale/trade 5 07-17-2006 04:38 AM
(not my Miata) Water in my CAI. And I/C piping. And I/C. And, finally, engine. UofACATS Insert BS here 4 07-11-2006 11:37 PM


Tags
aidan and sean's thread, brake fade? used pads., camera thread, can't catch meeeeee, dirt is my friend, hairline thread, landlord fuckery, linus strikes again, remarkable power!!!!!!!, sadfab rocks your butt, tires suck buy frozen rs3

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 On
Pingbacks are On
Refbacks are On



All times are GMT -4. The time now is 05:18 PM.