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Old 09-29-2009, 08:22 AM   #1
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Default so how is your transition into boost?

Another thing I'm wondering about, how is your transition into boost?
My car isn't boosted yet, so I have no experience with it.
What can I say, I've been out of the miata scene for 5-6 years, so I'm still thinking in Link terms .
Anyway, the Links used to have (small) problems with transistion into boost (just crossing 0psi). Is this something that occurs on MS installs as well or is this a non-issue?
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Old 09-29-2009, 08:41 AM   #2
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non-issue, smooth and easy, just as if you have an OEM ECU/engine - but with fun attached...
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Old 09-29-2009, 09:50 AM   #3
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seamless, like my panties.
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Old 09-29-2009, 10:01 AM   #4
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In the world of MS, there's no operational difference between <100 kPa and > 100 kPa. They're just two different points on the same scale. Stop thinking in terms of being "in boost" vs. "not in boost," you're in a better world now.

Are you referring to the Link, or the Link Piggyback? (NA or NB?)
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Old 09-29-2009, 10:07 AM   #5
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My boost transition is about like first penetration...every time.

Joe has a very good point...it's really about VE. MS doesn't care about relative vacuum or pressure...it's all about air going into the engine...which is why it's in kPa as well. With a turbocharger...you are realistically seeing a "boost" in pressure below 100kPa...and have a higher volumetric efficiency...which you have to tune for.

I do use a lot of resolution there. Most folks waste a lot of rows on the chart for what is really a simple linear function in boost. Use up more rows on both sides of 100kPa and profit.

https://www.miataturbo.net/forum/t33158/#post386922
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Old 09-29-2009, 01:32 PM   #6
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Quote:
Originally Posted by Joe Perez View Post
In the world of MS, there's no operational difference between <100 kPa and > 100 kPa. They're just two different points on the same scale. Stop thinking in terms of being "in boost" vs. "not in boost," you're in a better world now.

Are you referring to the Link, or the Link Piggyback? (NA or NB?)
Referring to full Link.
Glad to hear it's not an issue

Quote:
Originally Posted by gospeed81 View Post
My boost transition is about like first penetration...every time.
Painful?

Quote:
Originally Posted by gospeed81 View Post
My boost transition is about like first penetration...every time.

Joe has a very good point...it's really about VE. MS doesn't care about relative vacuum or pressure...it's all about air going into the engine...which is why it's in kPa as well. With a turbocharger...you are realistically seeing a "boost" in pressure below 100kPa...and have a higher volumetric efficiency...which you have to tune for.

I do use a lot of resolution there. Most folks waste a lot of rows on the chart for what is really a simple linear function in boost. Use up more rows on both sides of 100kPa and profit.

https://www.miataturbo.net/forum/t33158/#post386922
I have 10 rows under 101 and 5 in boost. Should be ok.
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