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View Full Version : k04 On Mazada Speed



SeekB00st
02-03-2011, 08:55 AM
I found out recently that the Mazada speed has a k04 on it.

Do you think this is the exact same k04 that we utilize?

Think its still the T28?

Gaberossi
02-03-2011, 09:01 AM
I wouldnt think it would be a k04-015, but i dnt know mazdas...from what I hear the k04 is a popular stock turbo for some manufacturers

Dan[FN]6262
02-03-2011, 09:07 AM
it won't work.

mtg729
02-03-2011, 09:30 AM
How come it wont work? My buddy has a mazdaspeed 3 and is selling is worked k04 and I was going to pick it up cheap. What dosent work on it?

texasboy21
02-03-2011, 09:45 AM
How come it wont work? My buddy has a mazdaspeed 3 and is selling is worked k04 and I was going to pick it up cheap. What dosent work on it?

its a different model turbo! k04-015, k04-001 etc. Lots of VW k04 options, and they wont fit either

ZimbutheMonkey
02-03-2011, 10:03 AM
While it won't bolt up directly, it'll work just fine. My K04 hybrid used a Mazdaspeed 32 lb/min compressor, Mazdaspeed compressor housing, and clipped Mazdaspeed turbine in a bored out K04-015 housing.

To the OP, you could likely use a T3 flanged manifold and use the 034 Tt to K27 adaptor plate http://www.034motorsport.com/fabrication-flanges-exhaust-manifold-flanges-flange-k27-to-t3-adapter-p-18191.html. As for the discharge, I believe that the Mazdaspeed uses a fairly standard 5 bolt flange on the discharge so it wouldn't take any more effort than installing a GT28 downpipe. You will, however need to do some fiddling with the oil/coolant lines as well.

As for power, it'll be very similar to a GT28r. You should be able to make around 300 CHP with it. Given how cheap the Mazdaspeed K04's are vis a vis a GT28r, I'm surprised that no one has tried using them before, actually now that I think about it I'm not surprised [rolleyes]

Dan[FN]6262
02-03-2011, 10:48 AM
because who really wants to go through all the work swapping around stuff and mixing and matching things to try and make it work when you can just pick up a used GTRS/GT71R kit for around a grand in the classifieds?

ZimbutheMonkey
02-03-2011, 11:12 AM
Thing is though, do those used GTRS/71r kits include everything you need (i.e. downpipe)? Most of these K04s' can be found for $200-300. That $700-800 difference buys a lot of parts.

movement360
02-03-2011, 11:27 AM
yeah but the savings will be nullified w/all the extra work/parts you will need to get it to work.

Dan[FN]6262
02-03-2011, 11:35 AM
when I sold my Eliminator setup, I sold everything with it. the complete kit, turbo, 2.5in inlet flange, TIP, cone filter, injectors, test pipe, and a brand new OEM oil return line, all for 1500.

ZimbutheMonkey
02-03-2011, 11:53 AM
yeah but the savings will be nullified w/all the extra work/parts you will need to get it to work.

How is that any more work than putting in a GT28r? You still need a new manifold/downpipe/lines/TIP. The only difference is that the turbo is $200-300 instead of $700-800

Dan[FN]6262
02-03-2011, 12:44 PM
all these points are moot, because no matter what, its not cheap to modify these cars.

ZimbutheMonkey
02-03-2011, 02:20 PM
I don't know that it's necessarily 'cheap' to modify any car. A GT28, downpipe, TIP, etc... costs the same regardless of make. The only thing that I find is that Audi owners tend to stick to kits rather than fabrication. I'm not saying that is the case for all Audi owners. However there is a persistent attitude that more $$$ = better.

I'm not saying that you can go basement bottom on everything and have a reliable car. However if you have the means and the know how, you can save a ton of money. Case in point, my exhaust. I did a 3 in exhaust, complete with o2 bungs, flanges, muffler and resonator for about $300-$400. Why, because I did all the work myself from top to bottom. Not saying that everyone has this option. However for those of us who do, you can save a lot of coin. Other case in point, I'm going to make a tubular exhaust manifold. It'll be about $150 for the pre-made merge collector and manifold flange, $50-75 for the rest of the piping and $75-100 for the ceramic coating. With any luck I'll be able to get it done for $350. Beats paying $1300 for a full race one, which, although it is a beautiful and well made product, just isn't within my price range.

I could go on and on, but I think you get my point. If anything, I'm sure you know from experience how much you saved by doing your own work.

movement360
02-03-2011, 02:42 PM
How is that any more work than putting in a GT28r? You still need a new manifold/downpipe/lines/TIP. The only difference is that the turbo is $200-300 instead of $700-800

Exactly. So by the time you buy, new mani, dp, lines, tip, injectors, flash, any sort of adapters etc, you'll be pretty damn close to a used full kit that was designed for our cars off the classified like dan said. I wish I would've been able to pick up his eliminator kit but alas, I knew not of his sale.

ZimbutheMonkey
02-03-2011, 04:30 PM
Assuming that you didn't go with an elim, a full frame GT28 is going to cost you exactly the same as a Mazdspeed K04 They both need different manifolds, downpipes, lines, TIP etc... However, the Hitachi Warner K04 is $200-$300 and the GT28r is $700-$800 used. The only difference is that the Hitachi warner will need a flange adaptor.

If it were the case that the K04 was the same cost as the GT28r then I'd say for sure, go with the GT28. However since this is s stock turbo and Mazda guys see them like we see K03's you can get them cheap like borscht. Honestly, they're a great match for our engines. 320 HP capable, rebuildable journal bearing, and quick response.

jsquillz22
02-03-2011, 07:52 PM
my buddy ran one on his gti.... they are different from the ones we use... i know they used the internals and a k04 022 housing

ZimbutheMonkey
02-03-2011, 09:57 PM
Moat likely one of the G-popshop hybrids. I know they made them a year back or so. I haven't kept up on them in the last little while so I don't know how many people are running them. They were using a 2280 compressor like this one on my hybrid. This setup was better suited to the K04-023 as the turbine housing was larger than the one on my K04-015 hybrid. Despite the clip on my turbine it still hurt the VE quite a bit.
http://i379.photobucket.com/albums/oo238/tlillo1/K04compressor006.jpg

SeekB00st
02-04-2011, 12:33 PM
Very interesting. Hybrid k04's.

ZimbutheMonkey
02-04-2011, 12:37 PM
It's pretty much what Frankenturbo is doing now. The only difference is that Slappy is using a slightly smaller version of this compressor and the stock compressor housing dimensions to keep the turbo outline the same as the stock K03. Mine used a full Mazdaspeed compressor and compressor housing.

SeekB00st
02-05-2011, 05:50 PM
It's pretty much what Frankenturbo is doing now. The only difference is that Slappy is using a slightly smaller version of this compressor and the stock compressor housing dimensions to keep the turbo outline the same as the stock K03. Mine used a full Mazdaspeed compressor and compressor housing.

Power estimations?

mtg729
02-05-2011, 05:54 PM
My buddy currently has this turbo setup on his Mazdaspeed3 and wants to get rid of it. My question is will this work for my car and/or what would I need to make it work?

http://www.protegegarage.com/1385-reworked-turbo-solution-for-the-mazdaspeed3-and-mazdaspeed6.html

ZimbutheMonkey
02-06-2011, 01:39 AM
I don't know to be honest, that turbo shown is a K04-015 and it's not going to make anywhere near the 350 WHP that they claim. If you want a bolt on upgraded K04 go with the Frankenturbo. It's good for about 220-230 WHP and 250-260 Wtq on a good tune with full supporting mods.

Doug@FrankenTurbo
02-06-2011, 07:01 AM
My buddy currently has this turbo setup on his Mazdaspeed3 and wants to get rid of it. My question is will this work for my car?...

yes


...and/or what would I need to make it work?


Countless hours. Unless you're unemployed or lost on a desert island your time is better-spent elsewhere.

mtg729
02-06-2011, 09:10 AM
I don't know to be honest, that turbo shown is a K04-015 and it's not going to make anywhere near the 350 WHP that they claim. If you want a bolt on upgraded K04 go with the Frankenturbo. It's good for about 220-230 WHP and 250-260 Wtq on a good tune with full supporting mods.

On the dyno they state that the turbo in conjunction with a well modified mazdaspeed3 put down those numbers. Their motors are also larger than ours. I looked at a mazdaspeed3 manifold last night and its actually a T3 manifold which isnt like ours. T25? I believe.

Also the down pipe is a GT28 style. Not a 4 bolt like ours.


yes



Countless hours. Unless you're unemployed or lost on a desert island your time is better-spent elsewhere.

I realized this last night. Thanks for the info. Ill just go with a basic K04 if I come across a good deal on one or go frankenturbo after my coilovers are installed.

ZimbutheMonkey
02-06-2011, 11:43 AM
On the dyno they state that the turbo in conjunction with a well modified mazdaspeed3 put down those numbers. Their motors are also larger than ours. I looked at a mazdaspeed3 manifold last night and its actually a T3 manifold which isnt like ours. T25? I believe.

Also the down pipe is a GT28 style. Not a 4 bolt like ours.

Yes, the engines are larger, but that still doesn't mean a Mazdaspeed will make more power with that turbo. If it's a reworked K04-015 its' still limited as to how much it can flow. Slappy has the best flowing K04-015 outline compatible turbo out there and it tops out at 260-270 CHP. If you put it on a 2.3L Mazdaspeed 3 it would top out at 260-270 CHP. It would probably hit full boost at 1500 RPM. But it would choke and die at 4500 RPM like a K03.

As for the inlet flange, it's more like a K26 or K27 flange, it's not a T25. Also, ours is a 3 bolt downpipe connection.

mtg729
02-06-2011, 02:14 PM
Yes, the engines are larger, but that still doesn't mean a Mazdaspeed will make more power with that turbo. If it's a reworked K04-015 its' still limited as to how much it can flow. Slappy has the best flowing K04-015 outline compatible turbo out there and it tops out at 260-270 CHP. If you put it on a 2.3L Mazdaspeed 3 it would top out at 260-270 CHP. It would probably hit full boost at 1500 RPM. But it would choke and die at 4500 RPM like a K03.

As for the inlet flange, it's more like a K26 or K27 flange, it's not a T25. Also, ours is a 3 bolt downpipe connection.

I see. Im a little new to the whole Audi/ turbo field. Still trying to get all the different flanges and whats compatible where. Looks like ill just go with the frankenturbo and be happy rather than do 4x the amount of work to make that turbo fit.

Doug@FrankenTurbo
02-06-2011, 07:30 PM
...or even worse, do 4x the work and discover that some obstruction or other unforeseen thing makes the whole enterprise not workable. Who knows? The turbine housing might bump into the subframe etc.

ZimbutheMonkey
07-09-2017, 02:34 PM
Necro bump I know, but I wanted to show that yes, it is possible to make a Mazdaspeed K04 fit for about $300 - $400 if you want to include the remote exhaust cutout.

https://farm5.staticflickr.com/4216/34984012604_8dc43cc988_k.jpg (https://flic.kr/p/Viqd87)mazdaspeed k04 4 (https://flic.kr/p/Viqd87) by zimbu themonkey (https://www.flickr.com/photos/156667009@N03/), on Flickr

Link to the thread I just started

http://www.audizine.com/forum/showthread.php/772470-300-HP-for-under-300-Yes-yes-I-have-)-Mazdaspeed-K04-install-(pics-inside)?p=12533614#post12533614