DIY Turbo Discussion greddy on a 1.8? homebrew kit?
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250-300WHP Build

 
Old 03-20-2019, 10:53 AM
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Originally Posted by psyber_0ptix View Post
No, that's not the heavy duty one. What Supermiata is advertising is the Chrysler 2.2L 4cyl headstuds to be used in miata heads. Thicker diameter stud. Tested up to ludicrous boost according to their site.


I use the ones that you linked, but I'm low compression (8.6:1) and not pushing ludicrous boost. Had I known I'd have access to e85, I'd have gone with higher.
Will I still be fine at this power level with the head studs I ordered? 9.5:1cr, probably about 15 PSI of boost to hit 300whp.
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Old 03-20-2019, 10:54 AM
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Too lazy to look. What turbo are you going to use?
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Old 03-20-2019, 10:59 AM
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Originally Posted by ryansmoneypit View Post
Too lazy to look. What turbo are you going to use?
Last I heard a cxracing 2871 turbo "kit"
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Old 03-20-2019, 11:54 AM
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Originally Posted by achulz View Post
Will I still be fine at this power level with the head studs I ordered? 9.5:1cr, probably about 15 PSI of boost to hit 300whp.
You're fine. I'm using normal ARP head studs. I was just playing around.
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Old 03-20-2019, 12:09 PM
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Originally Posted by ryansmoneypit View Post
Too lazy to look. What turbo are you going to use?
Disco Potato
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Old 03-20-2019, 12:09 PM
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Originally Posted by borka View Post
Last I heard a cxracing 2871 turbo "kit"
Nope, yíall changed my mind on that real quick lol
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Old 03-20-2019, 12:30 PM
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Originally Posted by achulz View Post
Disco Potato
IMHO the tater doesn't add enough power over the 2560 to be worth the significant hit in spool. If you want more power than 2560 levels from a Garrett, I would (and did) go with a GTX286x. EFR supposed to be an even better choice, but that's got more significant implications for the rest of the kit.

--Ian
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Old 03-20-2019, 12:31 PM
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2860 with a good exhaust housing doesn't give up much hit in spool and does make more power. Whether it's enough of a jump in power to justify paying for a Tial housing remains to be seen.
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Old 03-20-2019, 12:39 PM
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Originally Posted by codrus View Post
IMHO the tater doesn't add enough power over the 2560 to be worth the significant hit in spool. If you want more power than 2560 levels from a Garrett, I would (and did) go with a GTX286x. EFR supposed to be an even better choice, but that's got more significant implications for the rest of the kit.

--Ian
I wanted to stay EWG, Garrett makes a T25/T28 V-Band housing. Also, the tater is a GT2860RS? Which is what youíre recommending lol

What about Precision? I like their turbos, what would be similar in size and spool to the 2860?
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Old 03-20-2019, 12:40 PM
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Originally Posted by concealer404 View Post
2860 with a good exhaust housing doesn't give up much hit in spool and does make more power. Whether it's enough of a jump in power to justify paying for a Tial housing remains to be seen.
I was going to get the T28 with V-band discharge. EWG on a MaxG alpha turbo manifold.
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Old 03-20-2019, 12:42 PM
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Originally Posted by achulz View Post
I was going to get the T28 with V-band discharge. EWG on a MaxG alpha turbo manifold.
Gross.
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Old 03-20-2019, 12:45 PM
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Why not a efr 6258 with a kraken manifold and 3" downpipe?

Best budget baller setup on the market
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Old 03-20-2019, 12:46 PM
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Originally Posted by concealer404 View Post
Gross.
What would you suggest? Iíve never had EWG before and I want to give it a try on this build. I love the sound and lack of boost creep with EWG.

Is the MaxG manifold bad? It looks like an excellent cast manifold.
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Old 03-20-2019, 12:47 PM
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Originally Posted by borka View Post
Why not a efr 6258 with a kraken manifold and 3" downpipe?

Best budget baller setup on the market
Iíll look into it, never tried EFR turbos before.
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Old 03-20-2019, 12:49 PM
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How many people in your research on this site have suggested the setup that you're talking about?

This is a continual cycle.

You find something that sucks, claiming you researched. Get called out, given other options. You then come back with something else that nobody in history has ever recommended.

The cycle repeats. It's awful. Break the cycle.
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Old 03-20-2019, 12:53 PM
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Originally Posted by achulz View Post
Iíll look into it, never tried EFR turbos before.
Forget ewg, they are stupid and just complicate the exhaust routing. With the efr 6258 there are no boost creep issues.

This is exactly what I am running, for the cost. There is No better setup

$850 kraken cast manifold, 3" Downpipe and oil lines/fittings
$1260 brand new efr 6258 turbo - iwg, has integrated Bov and ebc, so no need to buy those separately.

This turbo is a spool monster and proven to handle up to 425whp on a miata.

Light years ahead of the disco potato 2860 spool and power wise
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Old 03-20-2019, 01:12 PM
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Originally Posted by concealer404 View Post
How many people in your research on this site have suggested the setup that you're talking about?

This is a continual cycle.

You find something that sucks, claiming you researched. Get called out, given other options. You then come back with something else that nobody in history has ever recommended.

The cycle repeats. It's awful. Break the cycle.
I chose a GT2860RS because itís a common setup. Search 2860 on Google and Miata is the first thing that follows up. I have multiple differing opinions on what I should get, to me the 2860 will suit my needs over a more common 2560 and it wonít send shrapnel into the engine like a Chinacharger might. Iím not going to get an eBay 2860 if thatís what people are getting at.
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Old 03-20-2019, 01:12 PM
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Originally Posted by borka View Post
Forget ewg, they are stupid and just complicate the exhaust routing. With the efr 6258 there are no boost creep issues.

This is exactly what I am running, for the cost. There is No better setup

$850 kraken cast manifold, 3" Downpipe and oil lines/fittings
$1260 brand new efr 6258 turbo - iwg, has integrated Bov and ebc, so no need to buy those separately.

This turbo is a spool monster and proven to handle up to 425whp on a miata.

Light years ahead of the disco potato 2860 spool and power wise
Sweet, Iíll go with that then. Sounds like a great setup
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Old 03-20-2019, 01:52 PM
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holy crap, we just went from a potato to an EFR. Good choice.
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Old 03-20-2019, 02:01 PM
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Since you don't know a GTX from a GT, it should be noted that a potato is not a GTX. There's about a 15-year technology gap between the two.

And the EFR is even better than the GTX.
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