Surely this has been asked before... k04? - 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 11-24-2013, 09:08 PM   #1
Newb
Thread Starter
 
Join Date: Nov 2013
Posts: 4
Total Cats: 1
Thumbs up Surely this has been asked before... k04?

Alright, i can't seem to find anything about this on MT.net that's actually related to a miata, so i guess I'll just ask.

Anyone running or know anything about running a k04 (stock for mazdaspeed3/6) on a miata 1.8? I own a mazdaspeed6 and know my way around the MZR platform pretty well. The k04 in that application runs stock at 14.5 psi, and is good til 18-20psi (I never ran more than 17), i've seen a few even run up to 22psi out of it.

Most people compare the k04 to the gt25's it looks like, and the numbers line up pretty well. I can pick up a non-smoking k04 for under $400 so I was just looking for a little more supportive info before I make a move. I expect I could make 250-270hp with one running a MS and rx8 injectors. I've also considered e85, as that's popular in the MZR realm as well.

Any input and discussion is appreciated. And if I'm wrong, let me know! I'd rather you tell me than have the car do it.
15driley15 is offline   Reply With Quote
Old 11-24-2013, 09:42 PM   #2
Senior Member
 
Join Date: Aug 2010
Location: Arl. Texas
Posts: 937
Total Cats: 23
Default




In for info..
Miater is offline   Reply With Quote
Old 11-24-2013, 10:06 PM   #3
Elite Member
iTrader: (5)
 
Erat's Avatar
 
Join Date: Oct 2011
Location: Detroit
Posts: 4,199
Total Cats: 260
Default

Without doing any research i'd say obviously your first obstacle would be manifold and downpipe.

I read your intro thread, if you're planning on doing fabrication this is good for you.

I can't recall anyone ever using that turbo, but plenty of people have used td04 style turbos with different flanges. I myself even have. Building a simple manifold, downpipe, and exhaust isn't that difficult really.

FWIW power output with that turbo on one engine @ X amount of psi will be completely different on another engine. With that being said, don't get to crazy about making more than 250hp on a stock engine and 5 speed.
Erat is online now   Reply With Quote
Old 11-24-2013, 10:11 PM   #4
Newb
Thread Starter
 
Join Date: Nov 2013
Posts: 4
Total Cats: 1
Default

Quote:
Originally Posted by Erat View Post
FWIW power output with that turbo on one engine @ X amount of psi will be completely different on another engine. With that being said, don't get to crazy about making more than 250hp on a stock engine and 5 speed.
Yeah I was mostly talking about the limits of the turbo in its more common applications. and 250rwhp puts me pretty near my goal... so that's convenient
15driley15 is offline   Reply With Quote
Old 11-24-2013, 10:27 PM   #5
Senior Member
iTrader: (8)
 
Join Date: Jun 2010
Location: Navarre, FL
Posts: 1,127
Total Cats: 39
Default

I don't think it's been done because you can get cheap, journal bearing, T25-flanged turbos and there are already plenty of T25 manifolds out there with matching exhausts, etc.

So really, there's no point, you'd just be making it harder on yourself. But, if you can fab up your own stuff and already have the stock k04 lying around etc., then I see no reason to not go for it.

If not, you can get a decent used T25/T28 for less than that, and then just pick up a Begi/FM manifold or whatever the heck you want- much cheaper and easier all around for a simple DIY build.
aaronc7 is offline   Reply With Quote
Old 11-25-2013, 12:43 AM   #6
Murderator
iTrader: (76)
 
18psi's Avatar
 
Join Date: Apr 2008
Posts: 36,197
Total Cats: 2,584
Default

Building a setup around a turbo is a bad idea.
18psi is offline   Reply With Quote
Old 11-25-2013, 09:41 AM   #7
Elite Member
iTrader: (1)
 
Leafy's Avatar
 
Join Date: Jun 2012
Location: NH
Posts: 9,093
Total Cats: 90
Default

Quote:
Originally Posted by 18psi View Post
Building a setup around a turbo is a bad idea.
Unless the turbo is an EFR.
Leafy is offline   Reply With Quote
Old 11-25-2013, 01:04 PM   #8
Elite Member
iTrader: (4)
 
Join Date: Sep 2006
Location: Charlotte, NC
Posts: 3,052
Total Cats: 7
Default

Quote:
Originally Posted by 18psi View Post
Building a setup around a crappy turbo is a bad idea.
FTFY
Efini~FC3S is offline   Reply With Quote
Old 11-25-2013, 01:28 PM   #9
Elite Member
iTrader: (2)
 
Join Date: Aug 2012
Location: Indianapolis
Posts: 3,325
Total Cats: 235
Default

I'm all for experimenting and exploring new ground.

But what will a $400 K04 get you that a $160 Ebay T3 50 trim won't?
thenuge26 is offline   Reply With Quote
Old 11-25-2013, 01:30 PM   #10
Elite Member
iTrader: (1)
 
Leafy's Avatar
 
Join Date: Jun 2012
Location: NH
Posts: 9,093
Total Cats: 90
Default

Quote:
Originally Posted by thenuge26 View Post
I'm all for experimenting and exploring new ground.

But what will a $400 K04 get you that a $160 Ebay T3 50 trim won't?
Or a free-$150 wrx takeoff td04 for that matter?
Leafy is offline   Reply With Quote
Old 11-26-2013, 04:47 PM   #11
Junior Member
iTrader: (1)
 
Tmorgan's Avatar
 
Join Date: Nov 2009
Posts: 79
Total Cats: 13
Default

I've got an extra k04 off a tt HO the 225hp car, I'll sell it to you cheap... pm me
Tmorgan is offline   Reply With Quote
Old 11-26-2013, 09:03 PM   #12
Newb
 
Join Date: Oct 2013
Location: Chicago
Posts: 38
Total Cats: 2
Default

For whatever it's worth, I had a B5 S4 with upgraded twin K04's (stock is K03)
My daily is a Audi TT coupe 225 (with K04)

Most "stage 3" software that you can buy runs them at 24psi, so I don't think that is an issue.

The K04 is also considered an "upgrade" fr 1.8 A4 (single turbo), but here's what APR has to say about them: The exhaust manifold is mated to a Garrett turbocharger that replaces the stock Triple K K03 turbocharger. We chose to use a Garrett turbocharger in lieu of a Triple K unit for several reasons. First of all, the new Garrett GT-Series is a more efficient design than the old Triple K K-24 turbocharger used by one of our competitors (the K-24's design dates back to the mid 70's). The Garrett turbocharger we have selected is a 1990's design. Also, Garrett turbochargers are available in a wider variety of configurations than the Triple K line, which allowed us to find a more exact match.

The Garrett they refer to in this paragraph is GT2860.
Frankie4Fingers is offline   Reply With Quote
Old 03-02-2015, 03:50 AM   #13
Newb
 
Join Date: Mar 2015
Posts: 1
Total Cats: 0
Default Any info

on k04 on 2.0 mzr? 2006 NC here
boogieman is offline   Reply With Quote
Old 03-04-2015, 08:52 AM   #14
Senior Member
iTrader: (9)
 
Join Date: Oct 2006
Location: Lexington SC
Posts: 1,003
Total Cats: 14
Default

The K04's are often used on the VW 1.8T to upgrade the factory K03 or K03S turbos. Unless you had a free or dirt cheap turbo, I wouldn't do it. I am not sure about the RWD/AWD configuration, but with the FWD configuration you have a huge DP flange that would be difficult to fit in the confines of the miata engine bay and get the exhaust gasses directed out the back. Again the Audi version might already address this and turn the DP flange to face to the rear of the car.

Post a pic of the Audi K04 if you can.

If you have the fabrication equipment and skills and you have realistic goals you could do it, but you will have a much easier time with a T25/28 setup!
Rallas is offline   Reply With Quote
 
 
Reply

Related Topics
Thread Thread Starter Forum Replies Last Post
15x10 - 15x11 6UL @ 949 Racing emilio700 Wheels and Tires 151 06-02-2017 03:36 PM
1991 special edition with hard top full part out JC, NJ russian Miata parts for sale/trade 6 10-08-2015 04:01 PM
Leaky Wilwoods mx592 Suspension, Brakes, Drivetrain 1 10-01-2015 01:45 AM
1996 Turbo Build Goldwar DIY Turbo Discussion 2 09-29-2015 10:20 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 04:54 PM.