Rear Turbo Setup - Page 2 - Miata Turbo Forum - Boost cars, acquire cats.

Welcome to Miataturbo.net   Members
 


DIY Turbo Discussion greddy on a 1.8? homebrew kit?

Reply
 
 
 
LinkBack Thread Tools
Old 12-17-2015, 11:12 AM   #21
Senior Member
iTrader: (8)
 
Join Date: Jan 2012
Location: Azusa, CA
Posts: 1,376
Total Cats: 80
Default

I like it. Something different.

I wonder what the volume of your cold side plumbing is. With all that cold underbody airflow there might not be need for an intercooler even at higher boost levels.

In for spool data and IATs.
cyotani is offline   Reply With Quote
Old 12-17-2015, 11:14 AM   #22
Newb
Thread Starter
 
Join Date: Nov 2015
Posts: 39
Total Cats: 12
Default

Quote:
Originally Posted by Braineack View Post
great location to install eletrical components. smh...


where's the oil pump?
Comp Turbos, water cooled ceramic bearings, no oil. I live in California and it's my fun car. The electrical components are really no concern, there sealed and just fine. If I live where it rained I would have done things differently.
Roadstercycle is offline   Reply With Quote
Old 12-17-2015, 11:25 AM   #23
Boost Czar
iTrader: (61)
 
Braineack's Avatar
 
Join Date: May 2005
Location: Chantilly, VA
Posts: 72,900
Total Cats: 1,792
Default

intersting.

i still dont like the idea of running wires and electircal components to a remote location instead of just vacuum line. like the map sensor... you shoudl be taking the reading off the intake mainfold, no idea why'd youd put it as far away form that as possible.
Braineack is offline   Reply With Quote
Old 12-17-2015, 11:25 AM   #24
Newb
Thread Starter
 
Join Date: Nov 2015
Posts: 39
Total Cats: 12
Default

Quote:
Originally Posted by Braineack View Post
what happens when a cop notices how loud and riduclous your car sounds and looks to see if youve added an aftermarket exhaust?
Dear Braineack, I was hesitant to even post my car on this site because of all the grief and hassle I've seen you give other people because they don't conform to your standards or opinions. I built the first FRS rear turbo car on the planet a few years ago and got a lot of grief then. I know what I have and you can't change that, if you have nothing nice to say why say anything? Some people are interested in the setup and your not so move on or just follow along.
Roadstercycle is offline   Reply With Quote
Old 12-17-2015, 11:28 AM   #25
Newb
Thread Starter
 
Join Date: Nov 2015
Posts: 39
Total Cats: 12
Default

Quote:
Originally Posted by cyotani View Post
I like it. Something different.

I wonder what the volume of your cold side plumbing is. With all that cold underbody airflow there might not be need for an intercooler even at higher boost levels.

In for spool data and IATs.
The IAT @ 5 PSI was about 125 degrees. I will probably go 8 psi and we'll see what happens. It may need a cooler.
Roadstercycle is offline   Reply With Quote
Old 12-17-2015, 11:29 AM   #26
Newb
Thread Starter
 
Join Date: Nov 2015
Posts: 39
Total Cats: 12
Default

Quote:
Originally Posted by Braineack View Post
intersting.

i still dont like the idea of running wires and electircal components to a remote location instead of just vacuum line. like the map sensor... you shoudl be taking the reading off the intake mainfold, no idea why'd youd put it as far away form that as possible.

It's not the MAP for the intake, It's the MAP for the exhaust pressure.
Roadstercycle is offline   Reply With Quote
Old 12-17-2015, 11:32 AM   #27
Boost Czar
iTrader: (61)
 
Braineack's Avatar
 
Join Date: May 2005
Location: Chantilly, VA
Posts: 72,900
Total Cats: 1,792
Default

Quote:
Originally Posted by Roadstercycle View Post
Dear Braineack, I was hesitant to even post my car on this site because of all the grief and hassle I've seen you give other people because they don't conform to your standards or opinions. I built the first FRS rear turbo car on the planet a few years ago and got a lot of grief then. I know what I have and you can't change that, if you have nothing nice to say why say anything? Some people are interested in the setup and your not so move on or just follow along.
wow, are you going to cry? Is that not a legitimate question? You said you did it for smog and to trick people, but will it trick a cop when he inspects your muffler? does that not happen in CA -- i cant imagine that car being quite...

and I dont just say nice things (that's what your mommy and liberal art tecahers are for) and people shouldn't expect others to hand out compliments. grow some ******* ***** *****. do you need to find a safe zone?

I'm not even giving you grief, just some ****.
Braineack is offline   Reply With Quote
Old 12-17-2015, 11:33 AM   #28
Boost Czar
iTrader: (61)
 
Braineack's Avatar
 
Join Date: May 2005
Location: Chantilly, VA
Posts: 72,900
Total Cats: 1,792
Default

Quote:
Originally Posted by Roadstercycle View Post
It's not the MAP for the intake, It's the MAP for the exhaust pressure.
ah gotcha. What's the purpose of that?
Braineack is offline   Reply With Quote
Old 12-17-2015, 11:34 AM   #29
Hug Life
iTrader: (3)
 
Monk's Avatar
 
Join Date: Apr 2014
Location: Huntington, Indiana
Posts: 2,805
Total Cats: 494
Default

Dude, he's just giving you some honest feedback and asking questions that are worth thinking about.
He's not being particularly hard on you... yet.
Monk is offline   Reply With Quote
Old 12-17-2015, 11:34 AM   #30
Junior Member
iTrader: (1)
 
Join Date: Oct 2015
Location: Metro Detroit, MI
Posts: 268
Total Cats: 19
Default

I have learned that this forum is the most "trial by fire" place on the internet. You will get torn up at first, but for those that make it past the grief, it is an amazing place to be at with great insight and knowledge.
Goingnowherefast is offline   Reply With Quote
Old 12-17-2015, 11:39 AM   #31
Senior Member
iTrader: (8)
 
Join Date: Jan 2012
Location: Azusa, CA
Posts: 1,376
Total Cats: 80
Default

Quote:
Originally Posted by Roadstercycle View Post
The IAT @ 5 PSI was about 125 degrees. I will probably go 8 psi and we'll see what happens. It may need a cooler.
What was ambient? Temp over ambient is more relevant.

How does the longevity of an water only turbo compare to a oil and water turbo? any plans to switch to an oiled setup down the road?
cyotani is offline   Reply With Quote
Old 12-17-2015, 11:40 AM   #32
Newb
Thread Starter
 
Join Date: Nov 2015
Posts: 39
Total Cats: 12
Default

Quote:
Originally Posted by Braineack View Post
ah gotcha. What's the purpose of that?
You can use the exhaust back pressure to see how efficient your turbo is working. From what I understand the back pressure should be under your boost pressure or close to it. Don't quote me as I was told that and have not done due diligence yet.
Roadstercycle is offline   Reply With Quote
Old 12-17-2015, 11:44 AM   #33
Newb
Thread Starter
 
Join Date: Nov 2015
Posts: 39
Total Cats: 12
Default

Quote:
Originally Posted by cyotani View Post
What was ambient? Temp over ambient is more relevant.

How does the longevity of an water only turbo compare to a oil and water turbo? any plans to switch to an oiled setup down the road?
Ambient was about 80 degrees. The turbo should go about 100,000 miles. At oil changes you shoot a couple pumps of special grease into the zert by the center cartridge.

I really don't want the oil pump nightmare, the water cooling is pretty clean setup.
Roadstercycle is offline   Reply With Quote
Old 12-17-2015, 11:47 AM   #34
Junior Member
iTrader: (5)
 
Join Date: Oct 2014
Posts: 473
Total Cats: 23
Default

Man, don't be so sensitive. Awesome build, loved the STS remote mount stuff for the C5. I thought that was always an awesome way to keep temps manageable and with modern turbos you can still get decent spool characteristics out of remote mount stuff. You should post some of your logs and let people pick them apart. Don't let your ego be hurt by it, it's just the internet. Lots of great information in all the skepticism here.
90civichhb is offline   Reply With Quote
Old 12-17-2015, 11:58 AM   #35
Junior Member
 
Join Date: Jul 2015
Location: Bremerton, WA
Posts: 429
Total Cats: 30
Default

I like this because it's different. But like others, I question whether this has any benefits compared to a normal mounting location.

Also, as you already stated that you were aware of, sometimes people offer some "tough love" here. If you knew you were going to get it, then buck up and take it. At least you're not JDM corvette guy.
Itty is offline   Reply With Quote
Old 12-17-2015, 12:00 PM   #36
Boost Pope
iTrader: (8)
 
Joe Perez's Avatar
 
Join Date: Sep 2005
Location: Delicious and Moist.
Posts: 26,327
Total Cats: 1,926
Default

I'd been trying to remember the name of the manufacturer that made the oil-less turbos. I've heard about them once or twice, but no first-hand experience.

The relatively high boost threshold, I suppose, is to be expected given the bearing configuration. I'll be extremely curious to follow the progress of this car and see how it holds up over time.

Welcome aboard. Looks very nice under the hood. I have a special fondness for sleepers.
Joe Perez is offline   Reply With Quote
Old 12-17-2015, 12:03 PM   #37
Newb
Thread Starter
 
Join Date: Nov 2015
Posts: 39
Total Cats: 12
Default

Quote:
Originally Posted by 90civichhb View Post
Man, don't be so sensitive. Awesome build, loved the STS remote mount stuff for the C5. I thought that was always an awesome way to keep temps manageable and with modern turbos you can still get decent spool characteristics out of remote mount stuff. You should post some of your logs and let people pick them apart. Don't let your ego be hurt by it, it's just the internet. Lots of great information in all the skepticism here.
Thank you about the build. I know that everyone takes their lickings here in the beginning and Brain is a sharp guy. When I did the FRS build STS actually called me and wanted to know about the Comp turbo setup so they could eliminate the oil pump setup, although that's what their Patent revolves around. As soon as I get a handle on learning tuning better I'll post some logs.
Roadstercycle is offline   Reply With Quote
Old 12-17-2015, 12:06 PM   #38
Newb
Thread Starter
 
Join Date: Nov 2015
Posts: 39
Total Cats: 12
Default

Quote:
Originally Posted by Joe Perez View Post
I'd been trying to remember the name of the manufacturer that made the oil-less turbos. I've heard about them once or twice, but no first-hand experience.

The relatively high boost threshold, I suppose, is to be expected given the bearing configuration. I'll be extremely curious to follow the progress of this car and see how it holds up over time.

Welcome aboard. Looks very nice under the hood. I have a special fondness for sleepers.

Comp Turbo in California.
Roadstercycle is offline   Reply With Quote
Old 12-17-2015, 12:12 PM   #39
Boost Czar
iTrader: (61)
 
Braineack's Avatar
 
Join Date: May 2005
Location: Chantilly, VA
Posts: 72,900
Total Cats: 1,792
Default

Quote:
Originally Posted by Roadstercycle View Post
Brain is a sharp guy.
im really quite dull.
Braineack is offline   Reply With Quote
Old 12-17-2015, 12:15 PM   #40
SADFab Destructive Testing Engineer
iTrader: (5)
 
aidandj's Avatar
 
Join Date: Apr 2014
Location: Beaverton, USA
Posts: 17,999
Total Cats: 1,466
Default

Quote:
Originally Posted by Joe Perez View Post
I'd been trying to remember the name of the manufacturer that made the oil-less turbos. I've heard about them once or twice, but no first-hand experience.
Quote:
Originally Posted by Braineack View Post
where's the oil pump?
Quote:
Originally Posted by Braineack View Post
ah gotcha. What's the purpose of that?
Quote:
Originally Posted by Roadstercycle View Post
So here's the Parts list:
Comp Turbo, Water Cooled Ceramic Bearings, no oil.


Extra GM 3 bar map sensor for exhaust back pressure reading. Have not taken any readings yet.
Quote:
Originally Posted by Braineack View Post
where's the oil pump?
You guys are on fire today.
aidandj is offline   Reply With Quote
 
 
Reply

Related Topics
Thread Thread Starter Forum Replies Last Post
MSPNP Pro Bad MAP sensor? abenson100 MSPNP 7 01-31-2016 09:03 PM
MSPNP2 90-93 Works great DIYAutotune Megasquirt ahawks9er Miata parts for sale/trade 4 11-24-2015 11:05 PM
RX8 oil cooler for boosted Miata? fwman1 Race Prep 13 11-06-2015 05:29 PM
Aluminum intercooler + piping + couplers with IAT bung and IACV carbon Miata parts for sale/trade 5 11-04-2015 06:56 PM
WTB 1.8 supercharger kit sharkycarlos WTB 1 11-04-2015 03:31 AM


Thread Tools

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 11:50 AM.