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Old 03-27-2020, 06:42 PM   #51
spoolinsti05
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First of all boost pressure is just back pressure which is resistance to flow...

The volume a larger turbo can move like. 60lb/min turbo vs 80lb/min turbo. Sure 80lb/min will take longer to build back pressure. Keep in mind the engine can only except so much air. Do to it's timed valve opening event. Cams are a good idea because you can get more of this into the cylinder.

When that valve slams shut you have turbo volume still trying to go into the engine. Enough will actually push the valve into a floating state.

Try to look at compressor maps and understand them..
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Old 03-28-2020, 09:58 AM   #52
rtv900
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Quote:
Originally Posted by spoolinsti05 View Post
Keep in mind the engine can only except so much air. Do to it's timed valve opening event. Cams are a good idea because you can get more of this into the cylinder.

When that valve slams shut you have turbo volume still trying to go into the engine. Enough will actually push the valve into a floating state.

Try to look at compressor maps and understand them..
ooooooh, now I get it, the timed valve event is the missing link.

boy these get more painful to read every post

(the valve float thing is idiotic)
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Old 03-28-2020, 11:03 AM   #53
spoolinsti05
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Originally Posted by rtv900 View Post
ooooooh, now I get it, the timed valve event is the missing link.
Actually no missing link would be bore stroke compression height and your mom.
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Old 03-28-2020, 06:44 PM   #54
rtv900
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Originally Posted by spoolinsti05 View Post
Actually no missing link would be bore stroke compression height and your mom.
ha
well I'll admit at least that made me laugh

and made slightly more sense than your previous post so that works for me
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Old 03-28-2020, 10:43 PM   #55
spoolinsti05
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Originally Posted by rtv900 View Post
ha
well I'll admit at least that made me laugh

and made slightly more sense than your previous post so that works for me
Glad I can be of assistance with your questions that come out oddly making it seem like you're knowledgeable.
Don't take it personal when someone pushes I usually pull.
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Old 03-29-2020, 02:35 AM   #56
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let's not talk about compressor efficiency though. there's no such thing. right?

right?


someone just lock this thread already.
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Old 03-29-2020, 08:13 AM   #57
rtv900
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let's not talk about compressor efficiency though. there's no such thing. right?
.
that isn't the subject, frankly that's all anybody wants to point to in order to support random claims.
point to a chart and say 'see'
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Old 03-29-2020, 11:59 AM   #58
spoolinsti05
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Quote:
Originally Posted by vicious_fishes View Post
let's not talk about compressor efficiency though. there's no such thing. right?

right?


someone just lock this thread already.
Like putting a mid frame turbine/compressor wheel in a small frame turbo to avoid going rotated?

Show me the compressor maps!

That's why I like Garrett turbos for integrating that sweet rpm speed sensor location. And plenty of compressor maps to sift through.

Only thing about that is so much can vary that map like different exhaust systems. Yada yada yada..
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