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DIY Turbo Discussion greddy on a 1.8? homebrew kit?

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Old 01-25-2009, 10:59 PM   #41
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Originally Posted by NA6C-Guy View Post
Seriously though, I dont think this is a very good question. Its like asking how old will I live to be. Some engines may handle more or less depending on many variables. No magic numbers Im affraid.
So when have the failures occured then? I haven't been able to find any built bottom-end failures caused my too much boost.
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Old 01-25-2009, 11:00 PM   #42
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well one of the threads was mine and I do mind, so now I'm whoring your thread in retaliation
Ohh aren't we mature. Have your ***** dropped yet?
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Old 01-25-2009, 11:00 PM   #43
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Originally Posted by Vashthestampede View Post
Lots of these guys on here are REAL LIFE tough guys.

Vash-
I know you are trying to make a point but those words and Miatas just don't go well together.
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Old 01-25-2009, 11:01 PM   #44
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Originally Posted by Vashthestampede View Post
Many folks have been hit with the ban hammer for the same deal. Its kinda frowned upon here. 5 more posts 6 more posts is kinda aggravating. At least post and share some actual thoughts you know.

On a side note this is a VERY popular thread at the moment.

Vash-
I understand it was frustrating but I could have either done that or started 10 useless posts about videos or jokes. Thought I would make it quick and painless.
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Old 01-25-2009, 11:03 PM   #45
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Originally Posted by mrtonyg View Post
I know you are trying to make a point but those words and Miatas just don't go well together.
LOL Whats u talking about i'm a tough guy.
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Old 01-25-2009, 11:08 PM   #46
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I searched on m.net for "built motor boost" and came upon some threads. This one seems to have a similar question/debate.

MX-5 Miata Forum - How much power is this engine good for?

Vash-
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Old 01-25-2009, 11:13 PM   #47
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Originally Posted by Vashthestampede View Post
I searched on m.net for "built motor boost" and came upon some threads. This one seems to have a similar question/debate.

MX-5 Miata Forum - How much power is this engine good for?

Vash-
Thanks haven't read that one. Cliff notes it said 22psi should be safe. Its for a 1.6l but should be similar enough.
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Old 01-25-2009, 11:15 PM   #48
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If you read a book about it you'd realize that M3/min or CFM is the measure of power.
Boosht ish ther mershur of baaakkpprressuurre in ther innntaaakkke seeestum.

That ther's yer problem. Ya still don't fuukin' lissen.

GT2554 at 15psi < t3/t4 at 15psi (the CFM's are different and the HP's are different.)

CFM of air plus fuel equals HP. How many CFM can my engine handle equals how much HP can my engine handle. And PSI is almost completely irrelevant to that equation other than the fact that excess PSI makes heat and counters efficiency.

You want your engine to flow as many CFM as possible with as few (relatively) PSI as possible if you are looking for total highest peak HP possible.

The problem is you think everybody's a dick for not lying to you.

Person 1: "How high is the sky?"
Person 2: "Well, it starts there and keeps going up and up."
Person 1: "Yeah, but how high is it?"
Person 2: "What part?"
Person 1: "The sky! How ******* high is it?"
Person 2: "There is no one answer!"
Person 1: "You're a dick!"
Person 2: "I'm not screwing with you. There is no one right answer."
Person 1: "**** you! I'm leaving!"
Person 2: "Bye...(sighs)...Dumbass."
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Old 01-25-2009, 11:16 PM   #49
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Originally Posted by ChuckyZ View Post
I understand it was frustrating but I could have either done that or started 10 useless posts about videos or jokes. Thought I would make it quick and painless.
or you could have just done nothing and posted only when you thought you had something to add or a sensible question and become a respectable member of the forum.

think about it for a minute: if it's ok to post 10 worthless posts, then why have the limit in the first place?

did you consider trying to ask a moderator/admin for some help?
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Old 01-25-2009, 11:18 PM   #50
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BTW - There's a guy on here from Greece running ~2.5 BAR of pressure.
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Old 01-25-2009, 11:19 PM   #51
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Originally Posted by y8s View Post
did you consider trying to ask a moderator/admin for some help?
Yes, he should send Savington a few PM's
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Old 01-25-2009, 11:19 PM   #52
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Originally Posted by y8s View Post
or you could have just done nothing and posted only when you thought you had something to add or a sensible question and become a respectable member of the forum.

think about it for a minute: if it's ok to post 10 worthless posts, then why have the limit in the first place?

did you consider trying to ask a moderator/admin for some help?
The reason I didn't wait is because I needed to make sure the item was still for sale or I was going to bid on item on ebay that was ending.

I didn't ask an admin because I honestly didn't think it would be that big of a deal since it was in the bs forum and no one would mind. Heck I thought some people would think it was funny. I also thought anything goes in there.
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Old 01-25-2009, 11:21 PM   #53
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Originally Posted by ChuckyZ View Post
So when have the failures occured then? I haven't been able to find any built bottom-end failures caused my too much boost.
because nobody has bottom end failures caused by too much boost

they are all caused by too much torque
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Old 01-25-2009, 11:21 PM   #54
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Originally Posted by ChuckyZ View Post
So you still say power and not pressure? If so don't waste my time.
Waste your time. Lol. I can assure you the feeling is mutual.

Seriously, look back at your computer screen for just a second. Count how many people are telling you you're wrong. Also look at these people's post counts. Consider the fact that you could be wrong.

You seriously don't get it. Here's a realllllyyy simplified way of putting it

Fuel burned/unit time = HP Burning fuel is the goal. Period.

To burn fuel, you need oxygen. A turbocharger will increase the density of the air going into the engine. Denser air= more oxygen. However, the compressor of the turbo gets its' power from the turbine. The turbine places a restriction on the engine, causing back pressure. Small turbo's have smaller turbines that place a larger restriction on the engine. This causes a larger pressure (read, enthalpy) difference across the turbine, resulting in more shaft work to drive the compressor. So a turbo with a very restrictive turbine will spool fast, but won't make much power. Where as a turbo with a large turbine will spool slowly, but once spooled, will make more power.
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Old 01-25-2009, 11:21 PM   #55
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Originally Posted by ChuckyZ View Post
No just because I am new to this forum does not mean they can be rude!
It does when you're asking retarded questions that could be answered with a search.

Notice how I've registered over a year ago and have less posts than you? Lurk more you colossal ------.
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Old 01-25-2009, 11:22 PM   #56
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Originally Posted by NA6C-Guy View Post
Yes, he should send Savington a few PM's

100% serious, I'd be more than glad to sit down for like 15-20 minutes over AIM and explain how internal pressure work, and why motors fail under torque and not pressure. If he is willing to be open to ideas that aren't his (and aren't wrong), I'll gladly put the time in to help him understand the correct ideas.

My AIM is Savington, and I'm dead serious.
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Old 01-25-2009, 11:23 PM   #57
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Originally Posted by sixshooter View Post
If you read a book about it you'd realize that M3/min or CFM is the measure of power.
Boosht ish ther mershur of baaakkpprressuurre in ther innntaaakkke seeestum.

That ther's yer problem. Ya still don't fuukin' lissen.

GT2554 at 15psi < t3/t4 at 15psi (the CFM's are different and the HP's are different.)

CFM of air plus fuel equals HP. How many CFM can my engine handle equals how much HP can my engine handle. And PSI is almost completely irrelevant to that equation other than the fact that excess PSI makes heat and counters efficiency.

You want your engine to flow as many CFM as possible with as few (relatively) PSI as possible if you are looking for total highest peak HP possible.

The problem is you think everybody's a dick for not lying to you.

Person 1: "How high is the sky?"
Person 2: "Well, it starts there and keeps going up and up."
Person 1: "Yeah, but how high is it?"
Person 2: "What part?"
Person 1: "The sky! How ******* high is it?"
Person 2: "There is no one answer!"
Person 1: "You're a dick!"
Person 2: "I'm not screwing with you. There is no one right answer."
Person 1: "**** you! I'm leaving!"
Person 2: "Bye...(sighs)...Dumbass."
Finally someone undestands its about flow. But since every engine is different and I didn't want to get technical just a ROUGH estimate I said boost. Since the main thing that determines flow in a turbo motor is BOOST! But once again they didn't say that untill now. They have been saying power and transmission and search. Which I know doesn't have the answer i'm looking for.
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Old 01-25-2009, 11:23 PM   #58
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Originally Posted by Savington View Post
because nobody has bottom end failures caused by too much boost

they are all caused by too much torque
Wow, how many ways do you have to explain it Sav? He's a thick one.
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Old 01-25-2009, 11:25 PM   #59
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Boostflow
Boostflow
Boostflow
Boostflow
Boostflow
Boostflow
Boostflow
Boostflow
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Old 01-25-2009, 11:28 PM   #60
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Originally Posted by sixshooter View Post
Wow, how many ways do you have to explain it Sav? He's a thick one.
Have you read all my posts. I know its not boost but pressure. What does pressure equal. Torque. But did I ask about that. No I asked A ROUGH ESTIMATE ON THE BOOST PEOPLE RUN BEFORE THERE MOTORS BLOW UP!!!

I missed Sav's earlier post on torque. I never argued it wasn't torque.
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