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DIY Turbo Discussion greddy on a 1.8? homebrew kit?

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Old 01-25-2009, 10:32 PM   #21
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Originally Posted by levnubhin View Post
Lets try this. What are your goals with the car? What do you plan to use it for? How much money do you have?
Goal=Get the most power out of the engine which would require running MAX BOOST But first I need to what the MAX BOOST is so that I can see if the turbo will be to large for my taste.

Use=Everything quite literally

Money=In the long run endless so not a factor.
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Old 01-25-2009, 10:37 PM   #22
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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! Power varies way to much to be a comparison. Boost is more accurate because it accurately measures the maxium pressure that the engine can handle.

A car can have 500hp and 400hp but be only running 30psi. Both of which would blowup at that same psi but hp.
Wrong again. Wow. Where are you getting your info from? All I can say is it's wrong.

Maximum pressure- Care to define this loose term you just threw in? Feel free to be more specific in term of PPP, MBT, etc in a SI engine.
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Old 01-25-2009, 10:40 PM   #23
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Originally Posted by ChuckyZ View Post
Goal=Get the most power out of the engine which would require running MAX BOOST But first I need to what the MAX BOOST is so that I can see if the turbo will be to large for my taste.

Use=Everything quite literally

Money=In the long run endless so not a factor.

Cmon, people have made legit attempts at helping you out but seems like you need to help yourself out for now. You need to be more realistic about your goals..

This is how I read this post:

I want to make the most power but not too much power
I want to use my car for everything and anything
I have no certain budget, but if I did it wouldn't matter


It should read:

I want to make upwards of 200whp, with room to grow
I'm uncertain of what I will do with it, but def not -rifting
I'd like to have a quality build, but need ot cut corners in order to stay under 5k


Otherwise, stick with my very simple and specific answer...41-43lbs
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Old 01-25-2009, 10:43 PM   #24
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In my time around miatas, IIRC that is, I don't remember ever hearing of anyone talking about 30psi and so on. I do believe there was a guy on here though that had a built motor and a larger turbo boosting around 25psi.

Don't be so concerned about rudeness over here. Lots of these guys on here are REAL LIFE tough guys. They are ******* dead serious with you dude.

Vash-
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Old 01-25-2009, 10:43 PM   #25
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I give up, good luck.
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Old 01-25-2009, 10:45 PM   #26
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Originally Posted by patsmx5 View Post
Wrong again. Wow. Where are you getting your info from? All I can say is it's wrong.

Maximum pressure- Care to define this loose term you just threw in? Feel free to be more specific in term of PPP, MBT, etc in a SI engine.
Umm peak pressure is what usually brakes a engine. So you're saying the power is what breaks a rod, piston, headgasket and not pressure. LOL
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Old 01-25-2009, 10:46 PM   #27
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Originally Posted by levnubhin View Post
I give up, good luck.
Your avatar is ******* hilarious. So is Vash's.

Also, just to get this in here:
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Old 01-25-2009, 10:47 PM   #28
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Originally Posted by ChuckyZ View Post
Umm peak pressure is what usually brakes a engine. So you're saying the power is what breaks a rod, piston, headgasket and not pressure. LOL
tard, not the power, the attempt to make said power. 30 PSI through a T330 PSI through 14B (one will undoubtedly explode btw)

you should be asking how much power your motor may handle (5 speeds don't break at 15 psi) not how much pressure
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Old 01-25-2009, 10:49 PM   #29
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I ran 30psi from a T3/T4 with no issues! As mentioned above.. AMount of boost probably won't be your problem. Transmission will be.
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Old 01-25-2009, 10:49 PM   #30
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Originally Posted by ChuckyZ View Post
Umm peak pressure is what usually brakes a engine. So you're saying the power is what breaks a rod, piston, headgasket and not pressure. LOL
LOL, you obviously don't know as much about engines as you think you do. How about MEP?
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Old 01-25-2009, 10:49 PM   #31
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Originally Posted by Vashthestampede View Post
In my time around miatas, IIRC that is, I don't remember ever hearing of anyone talking about 30psi and so on. I do believe there was a guy on here though that had a built motor and a larger turbo boosting around 25psi.

Don't be so concerned about rudeness over here. Lots of these guys on here are REAL LIFE tough guys. They are ******* dead serious with you dude.

Vash-
Thanks for input. Well rudeness to someone who can bring info and experience and without even understanding who they are talking too or the question being asked is not someone I wish to deal with in order to stay on this forum if that is what it comes too.
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Old 01-25-2009, 10:50 PM   #32
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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!
Wrong. You've been here like a week and you think you can tell us how to run our forum? **** off. If you want, you can eat a piece of humble pie and understand that everyone here isn't a total ***, but when you mouth off to senior members you can expect a serious bitchslapping. We all know a hell of a lot more than you do (you've proven that categorically in this thread). You have two options: Apologize and we can all nicely explain to you why you're wrong, or keep acting like a dick and we'll run you out of here faster than Hitler ran the Poles out.

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Originally Posted by ChuckyZ View Post
Power varies way to much to be a comparison.
Wrong. Power is the only comparison that matters, and I'll explain that after the next time you're wrong.

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Originally Posted by ChuckyZ View Post
Boost is more accurate because it accurately measures the maxium pressure that the engine can handle.
Totally wrong. Boost pressure is nothing more than a measurement of restriction in the intake manifold. What actually matters is pressure in the cylinders, which is directly related to torque.

Quote:
Originally Posted by ChuckyZ View Post
A car can have 500hp and 400hp but be only running 30psi. Both of which would blowup at that same psi but not hp.
Totally, utterly wrong. Motors are designed to take a certain compression pressure, which is directly related to torque. It really doesn't care what the pressure in the intake manifold is, which is all you measure. Boost is actually a pretty arbitrary, bullshit thing to measure or base power readings off of; this is demonstrated quite well by the fact that y8s makes 257whp from 9psi, but it takes most people 16-17psi to make the same power.

You need to stop insulting us. It's our forum and if you don't like it, you're welcome to get the hell off of it. If you're willing to learn, and respect the people here who know more than you do, you'll learn a hell of a lot from this forum. I know I did.

Last edited by Savington; 01-25-2009 at 11:04 PM.
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Old 01-25-2009, 10:50 PM   #33
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LOL, you obviously don't know as much about engines as you think you do. How about IMEP?
So you still say power and not pressure? If so don't waste my time.
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Old 01-25-2009, 10:51 PM   #34
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Originally Posted by ChuckyZ View Post
in order to stay on this forum if that is what it comes too.
after you have treated our lovely forum like a $0.05 ***** with your post spamming?
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Old 01-25-2009, 10:52 PM   #35
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I ran 30psi from a T3/T4 with no issues! As mentioned above.. AMount of boost probably won't be your problem. Transmission will be.
Thanks Marc. Yeah I will try to find the limit of the 6-spd. We will findly know how strong they are. Then again i remember reading someone pushing 470 through theres. It was the e85 build. I think he was running 6-spd. So maybe the engine would go first.
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Old 01-25-2009, 10:54 PM   #36
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Originally Posted by mazda/nissan View Post
after you have treated our lovely forum like a $0.05 ***** with your post spamming?
WTF I posted 10 times in the BS section so that I can pm a couple members so that I could buy there products. I don't think they minded I posted in the bs forum.
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Old 01-25-2009, 10:56 PM   #37
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Goddamn it, do I have to do everything around here... the answer is 28.64psi. At 28.65 EVERY B6 and BP will crack on the front side of cylinder #3 at 11:48a.m. while on your way to lunch. You will leave an 84ft oil slick, and drop 4 pieces of rod in the oncoming lane, in front of the red PT Cruiser doing 49mph in a 40 mph zone. DUH!!!

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.
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Old 01-25-2009, 10:58 PM   #38
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Originally Posted by ChuckyZ View Post
WTF I posted 10 times in the BS section so that I can pm a couple members so that I could buy there products. I did think they minded I posted in the bs forum.
well one of the threads was mine and I do mind, so now I'm whoring your thread in retaliation
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Old 01-25-2009, 10:59 PM   #39
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^ Payback is a bitch!
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Old 01-25-2009, 10:59 PM   #40
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Quote:
Originally Posted by ChuckyZ View Post
WTF I posted 10 times in the BS section so that I can pm a couple members so that I could buy there products. I did think they minded I posted in the bs forum.
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.

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