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DIY Turbo Discussion greddy on a 1.8? homebrew kit?

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Old 07-18-2008, 06:04 PM   #21
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Quote:
Originally Posted by Braineack View Post
intake manifold, yes.
Right, I know that, but I assumed Sam meant turbo manifold.

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Originally Posted by Saml01 View Post
Nobody is able to hit 10psi on a GT2560 @ 3rpm on a begi manifold?

I get the above numbers from compuatics thread with his spool problems.
That i am not sure about, Paul also has a very smooth 3" DP which helps a ton.
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Old 07-18-2008, 06:17 PM   #22
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begi exhaust
manifold doesnt flow as well.....
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Old 07-18-2008, 07:18 PM   #23
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ALL OTHER FUNCTIONS OF AN ENGINE REDUCE THE NET POWER GENERATED FROM THIS PROCESS.

so to maximize net power you can either raise the gross or lower the losses.
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Old 07-18-2008, 07:32 PM   #24
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I can assure they that we have had ZERO cracking issues with this model. We once had a manifold crack with one of our old tubular manifolds and it was because the customer put relief cuts in the manifold. We don't recommend this with a tubular!
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Old 07-18-2008, 07:41 PM   #25
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I certainly didnt make any extra power with my exhaust....

I don't get if this is a sarcastic comment.... but also I cannot believe all that power was made with ONLY an exhaust swap....

How much boost are you running in those graphs?

Thanks

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Old 07-18-2008, 09:38 PM   #26
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there was also headwork performed, but otherwise the setup was the same, just added an exhaust and tuned the fuel better. spark map was identical.

lower run was 12psi flat, better run was a 13psi spike, then dropped to 10psi, then linearly back to 13psi.
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Old 07-18-2008, 09:44 PM   #27
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Quote:
Originally Posted by Saml01 View Post
What intake manifold comment?
I'm referring to this
Quote:
Originally Posted by SamL01
psst, ever hear of the s2000, 11:1.



If you want maximum spool response get the 54, want more top end and higher hp get the 60. If I was buying another turbo, id get a 54.

I know of one person that is using that intake manifold. Keep in mind that you wont have EGR anymore with it. I also firmly believe it does not improve anything, just bling. Youre already force feeding the air, a free flowing manifold wont produce any benefits.
from this thread: http://forum.miata.net/vb/showthread.php?t=291248
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Old 07-19-2008, 02:11 AM   #28
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Thanks everyone for the info. That shorty sure looks nice!

Barry
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Old 07-19-2008, 12:57 PM   #29
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Quote:
Originally Posted by johndoe View Post
I'm referring to this
from this thread: http://forum.miata.net/vb/showthread.php?t=291248
I responded in the thread.
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Old 07-22-2008, 09:42 AM   #30
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Quote:
Originally Posted by Saml01 View Post
Isnt he running a begi manifold?
BEGI intake manifold, my exhaust manifold/downpipe/exhaust/intercooler piping. Horray for me.
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