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400bhp turbo: Seeking the holy grail.

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Old 08 September 2016, 04:37 PM
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edsel
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Default 400bhp turbo: Seeking the holy grail.

I'm currently running a standard TD05 90deg entry on a Finch built 2.0 V2 making a modest 320. Very happy with its performance but I'm now feeling the urge to chase horses and improve 1/4 mile times. The number I have in my head is 400 (ish) but I want the fastest spooling turbo possible at the lowest revs.
Would I be correct in thinking a ball bearing billet turbo is the ideal?
I'm considering a lateral MD321H anyone have any experience of this turbo?

Cheers
Old 08 September 2016, 05:02 PM
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bustaMOVEs
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Sc42
Old 09 September 2016, 02:07 AM
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I have a sc38 on mine.
Fairly modded.
In terms of power I recently had a meth map and made 436/385
Old 10 September 2016, 05:10 PM
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edsel
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Are the SC turbo wheels ball bearing mounted?
Old 10 September 2016, 05:15 PM
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banny sti
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For 400bhp I would also be looking at the MDX321H, well suited to a 2 litre engine too
Old 10 September 2016, 06:22 PM
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bustaMOVEs
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Originally Posted by edsel
Are the SC turbo wheels ball bearing mounted?
Yes bb and billet, not sure about the older ones.
Old 11 September 2016, 01:10 AM
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edsel
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Originally Posted by bustaMOVEs
Yes bb and billet, not sure about the older ones.
Thanks, I assumed the sc range were the cheaper bushed type compressor wheel as it doesn't mention ball bearing on their website .
Old 11 September 2016, 03:01 AM
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CharlesTuna
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Originally Posted by edsel
Thanks, I assumed the sc range were the cheaper bushed type compressor wheel as it doesn't mention ball bearing on their website .
Look at the Blouch turbo www Think all the Dominator Turbos have ceramic ball bearings
Old 12 September 2016, 12:00 PM
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edsel
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Im reliably informed the SC36 and 38 are journal bearing, the 42 is BB. I should have rephrased my original post to 400 max. Will a the MD321 take me over 400? The weakest link on my car is the new age sti rods and open deck block.
Old 12 September 2016, 12:19 PM
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Gearbox?
Old 12 September 2016, 12:57 PM
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Mamba gt28. Thank me later
Old 12 September 2016, 09:15 PM
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banny sti
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Originally Posted by veerinder9
Mamba gt28. Thank me later
He wants 400bhp not 40
Old 12 September 2016, 10:20 PM
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ian12
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Originally Posted by banny sti
He wants 400bhp not 40
Mamba gt3071r twinscroll,1.5 bar just Vpower on my03 jdm sti normal bolt on mods.
Name:  B47719B8-1061-42F3-BD4E-6B810B8A52CC_zpsuaq8gg7s.jpg
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You were saying.

Last edited by ian12; 12 September 2016 at 10:22 PM.
Old 12 September 2016, 10:30 PM
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Dont get butt hurt, its an inside joke with vee lol
Old 12 September 2016, 10:47 PM
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Lol it's just a joke mate but yes mamba ftw
Old 13 September 2016, 07:00 AM
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Would like it to make 400 for longer than a few weeks, what's the reliability like?
Old 13 September 2016, 08:41 AM
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Originally Posted by ian12
Mamba gt3071r twinscroll,1.5 bar just Vpower on my03 jdm sti normal bolt on mods.

You were saying.

What's it drive like? Looks laggy and the torque drops off quickly

SC42 Ts ftw
Old 13 September 2016, 09:06 AM
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Originally Posted by ossett2k2
What's it drive like? Looks laggy and the torque drops off quickly

SC42 Ts ftw





2.1 avcs. Mamba gt3076r. 550bhp rated on site. Making 435bhp at 1.5 bar boost (held back due to intercooler and wastegate issues) will see what it makes after these Changes. Considering size of turbk don't think that's laggy at all
Old 13 September 2016, 09:12 AM
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Originally Posted by edsel
Would like it to make 400 for longer than a few weeks, what's the reliability like?
A few people have been running these and as far as i know no one has reported back any failures. Mines been on for a few months no issues as of yet.. Touch wood..
Old 13 September 2016, 09:26 AM
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Are the gt3071 and the gt3076 Both 500+ rated ?

How about the gt28? It would be interesting to see a graph of the 28 to see if that gets going a bit earlier
Old 13 September 2016, 09:30 AM
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I Have the MD321H and cant fault it, I was running 415 with the old EcuTek map but having an Alkatek installed soon. The MDX range will spool a bit quicker but also another version that will give a bit more power.
Old 13 September 2016, 09:38 AM
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Originally Posted by ossett2k2
Are the gt3071 and the gt3076 Both 500+ rated ?

How about the gt28? It would be interesting to see a graph of the 28 to see if that gets going a bit earlier
i think the gt3071 is 500 and 3076 is 550. So gt28 should be 450. The specs are all a on their website
Old 13 September 2016, 09:51 AM
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Originally Posted by veerinder9
i think the gt3071 is 500 and 3076 is 550. So gt28 should be 450. The specs are all a on their website
Site says 350bhp for the gt28.
Old 13 September 2016, 09:55 AM
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Originally Posted by ossett2k2
Site says 350bhp for the gt28.
Some figures are slightly underated lol
Old 13 September 2016, 10:05 AM
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This is is a little interesting
Old 13 September 2016, 12:02 PM
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Originally Posted by edsel
Would like it to make 400 for longer than a few weeks, what's the reliability like?
We've sold a fair few of these in varying sizes, no failures to date.
The 16G is a cracking little unit but if you're wanting 400bhp the 18G billet with the 9 blade turbine wheel should do very well indeed.
Old 13 September 2016, 04:02 PM
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My meth map on a SC38

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Old 13 September 2016, 04:33 PM
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Matty81
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all that power in an Impreza ...do you guys use them on roads or track days aswell ?
Old 13 September 2016, 05:45 PM
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[QUOTE=Scooby_Lee101;11875692]My meth map on a SC38

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Who mapped it and what fuel?

Last edited by joe v3sti; 13 September 2016 at 05:46 PM.
Old 13 September 2016, 05:58 PM
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banny sti
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SRR, my guess would be Duncan and it does say meth so would assume 20% mix Joe


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