stock turbo replacement upgrade

[shadesofgray19]

Yes, not all K04's are the same. Ours is still shit. Audi's don't have the displacement that we do.

[martin_nj]

hey all -

how about something like this?

GT3071R Bolt On Turbo Kit for Mazdaspeed3 (2007 thru 2010) : atpturbo.com

claims to bolt into the stock location with minimal mods ...

obvs that price can be lower if you buy from the right SoUrces

[Tokay444]

Umm... You new here?

[martin_nj]

not really new just haven't been following the turbo sections...

what's the scoop on these?

[dooderek]

Lol

[martin_nj]

not helpful

phate's quote actually applies to me =P

[Tokay444]

Just about everyone who's gone bt is using it or a 3076...

[martin_nj]

hahah yes that i know

since this is an OEM replacement i was asking more along the lines of its advertised "bolt on"ness

the BT guys are usually going top mount nowadays and the OP and I both want simple stock replacement. no rerouting water lines/oil lines etc

[shadesofgray19]

They are bolt on in that they can bolt on to the stock exhaust mani and downpipe, that's it. You need to rework oil and coolant lines. You need a new tip. I don't think they will work with the TMIC.

[martin_nj]

ah really? damn that sucks =\

i have the cobb silicone tip even that won't fit?

so my only real bolt on if i'm looking to minimize downtime and fabrication is the S3 from bnr?

[Tokay444]

And I don't know anyone who is top mount turbo on an ms3.

If your tip fits the stock turbo, it won't fit a bt.

[martin_nj]

tokay - are you kidding me? you a good troll =P
^^ this is re not knowing anyone top mounted

CALLIN ALL BIG TURBO MAZDAS

HOW TO: TOP MOUNT TURBO SET UP!!

http://www.mazdaspeedforum.org/forum/foru...-pt-4-a-85857/


re: TIP i see... i guess when i read the ATP's description i assumed it would be a stock bolt on...

obvs having bigger inlet, and better headers and bigger exhaust would help things make more power but yah....

[Ziggo]

Those are all MS6s. If there was a topmount twinscroll manifold available for the MS3 I would have been all over it.


Zigatapatalka

[martin_nj]

zigg i read your BNR thread - if you had to do it again would you have done anything differently? besides the twin scroll top mount you just mentioned hehe

[Ziggo]

Nah, it's exactly what I thought it would be. I needed a replacement for my dying k04 and figured I would get a bit of a performance bump at the same time to what I felt was within the stock bottom end's ability to withstand reliably. I wasn't expecting it to exceed the stock clutch's limits, but there isn't much data on big turbo speeds in road racing type environments and didn't think I would be so knock limited, but those things would have happened with a larger turbo as well.

I will probably upgrade again to something 3071/3076ish when there is a twin scroll setup available so I can push the boost a bit more on the top end without losing transient response. The BNR can handle 22psi to redline comfortably, but in order to carry a 2.1/2.3 load to redline in the Texas heat it seems like I will need more like 26psi up top, which I wasn't expecting.

TL;DR notes:
K04 was dying/dead
Needed replacement ASAP
BNR performs great as a stock replacement with probably 30-50hp capability bump
Will be upgrading again when bolt on twin scroll setup is available due to stupid I texas temperatures.


Zigatapatalka

[Ziggo]

I guess I should add:

K04 @ 290g/s in 80* ambient- shaft play

BNR @ 320g/s in 95* ambient - still working like a champ

So it's not just a power bump, it's a reliability bump as well.


Zigatapatalka

[Tokay444]

Originally Posted by martin_nj tokay - are you kidding me? you a good troll =P ^^ this is re not knowing anyone top mounted CALLIN ALL BIG TURBO MAZDAS HOW TO: TOP MOUNT TURBO SET UP!! http://www.mazdaspeedforum.org/forum/foru...-pt-4-a-85857/ re: TIP i see... i guess when i read the ATP's description i assumed it would be a stock bolt on... obvs having bigger inlet, and better headers and bigger exhaust would help things make more power but yah....

You suck.

[martin_nj]

Originally Posted by Ziggo Will be upgrading again when bolt on twin scroll setup is available due to stupid I texas temperatures.

that sucks you'll have to upgrade twice =\

sans the texas heat what is the max you think the S3 can support? 400 wheel?

[Ziggo]

Like I said, needed something right away cause I didn't feel like staying off the track for a year till something I really wanted was available.

You might be able to squeeze 400wheel by reall stressing the turbo, using meth, and possibly E85 to let you run assloads of timing, but I don't think that would be smart for someone who tracks the car cause you are going to hurt the reliability. I wouldn't expect more than 350 out of it reliably without getting crazy.

[dixie789456]

Originally Posted by Tokay444 See the post RIGHT above yours for your answer.

so then the problem is with earlier turbos.... not the design of the engine.

[Tokay444]

No. The problem is with the size of the oil restriction hole, or lack there of, combined with where the oil return dumps back into the block.
The new turbos have a revised restriction. Somethin that was easily remedied on the earlier ones as well. WITHOUT turbo replacement. Some engines also required more vacuum so that that the return line would actully return, and not choke up. Hence the new valve cover vent kit. Not a new turbo.

[MSP611]

where is this valve cover vent kit u speak of? i have read much about it but have not seen many kits out there

Originally Posted by Tokay444 No. The problem is with the size of the oil restriction hole, or lack there of, combined with where the oil return dumps back into the block. The new turbos have a revised restriction. Somethin that was easily remedied on the earlier ones as well. WITHOUT turbo replacement. Some engines also required more vacuum so that that the return line would actully return, and not choke up. Hence the new valve cover vent kit. Not a new turbo.

[Tokay444]

It's a tsb.
New valve cover. New tip, and some misc. parts.

[MSP611]

ahhhh lame... i jst do ye olde breather on the valve cover and a venturi set up on my OCC