Built Engine Max Boost
#1
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Built Engine Max Boost
I will be building up my miata in the next week with the belfab kit. Roughly 9:1 compression, rods, valvetrain, EXintake mod, Cam gear, etc... I know on the stock block 12psi is safeish, 15psi is pushing it, and 18psi is a ticking time bomb. When it comes to built motors I can find less input on what they handle.
So with all supporting mods and with a good tune, what can a typical built bottom end handle. Remember this is roughly I know all about different turbos, timing, intake flow, transmision, differential, etc... Thanks
So with all supporting mods and with a good tune, what can a typical built bottom end handle. Remember this is roughly I know all about different turbos, timing, intake flow, transmision, differential, etc... Thanks
Last edited by ChuckyZ; 01-25-2009 at 08:07 PM.
#4
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I am well aware of the drivetrain issues with these cars. I have owned another miata and have built many a cars. So thank you for that information but my question still is how much can the ENGINE HANDLE?
#5
Given how little sample data there is it'd be terribly irresponsible just to throw out some approximate number.
Maybe you should go talk to that dude who built the eliminator miata who's running ~500+hp on his 1.8
Maybe you should go talk to that dude who built the eliminator miata who's running ~500+hp on his 1.8
#6
Who knows? There is no definitive answer. A few have done 400, 500, and 600whp setups with built engines. Those are not necessarily the MAX ENGINE HANDLE per se. These are just numbers that have been put down.
#7
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Thanks for the info. Anybody else have any experience/input. Although I think the turbo I will choose will limit me since I don't want to sacrifice too much lag. Although I could always add a small nitrous shot
#10
Asking how much boost a motor can handle is not a very good qurstion. 15 psi on my 2854 is a hell of alot different than 15 psi on a 3071. Tell us what turbo you plan to use and then you might get a more accurate answer. Although you could just search.
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#13
Chucky, your questions are weak, and very noobish. You've already had some of your post deleted because they were crap. This is borderline.
In a sense, you are being rude posting questions that can be answered (indirectly) by searching. So expect some hazing. The fact that you put "max boost" in your title shows your lack of understanding.
If you are anywhat worried about lag, then you're not worried about how much power a built engine can take.
In a sense, you are being rude posting questions that can be answered (indirectly) by searching. So expect some hazing. The fact that you put "max boost" in your title shows your lack of understanding.
If you are anywhat worried about lag, then you're not worried about how much power a built engine can take.
#15
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Chucky, your questions are weak, and very noobish. You've already had some of your post deleted because they were crap. This is borderline.
In a sense, you are being rude posting questions that can be answered (indirectly) by searching. So expect some hazing. The fact that you put "max boost" in your title shows your lack of understanding.
If you are anywhat worried about lag, then you're not worried about how much power a built engine can take.
In a sense, you are being rude posting questions that can be answered (indirectly) by searching. So expect some hazing. The fact that you put "max boost" in your title shows your lack of understanding.
If you are anywhat worried about lag, then you're not worried about how much power a built engine can take.
I have only been rude when people were rude to me first. I have thanked people when the gave good info and told people who wasted my time to **** off.
There is a balance between power and lag. I need to know the max boost a engine can handle so that I can compare what turbo can put out that much and see how much it lags. Then go down the ladder untill I find a happy medium. Wow don't know if this forum is for me at all!
Also if you find me 5 threads were they talked about the limitations of the block with a fully built bottom-end I will admit i'm wrong. It the one started 1 minute after mine doesn't count.
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Max boost is a very scientific term. They are not weak or noobish. Hell one minute after I started this thread another member with thousands of posts asked the same question.
I have only been rude when people were rude to me first. I have thanked people when the gave good info and told people who wasted my time to **** off.
There is a balance between power and lag. I need to know the max boost a engine can handle so that I can compare what turbo can put out that much and see how much it lags. Then go down the ladder untill I find a happy medium. Wow don't know if this forum is for me at all!
I have only been rude when people were rude to me first. I have thanked people when the gave good info and told people who wasted my time to **** off.
There is a balance between power and lag. I need to know the max boost a engine can handle so that I can compare what turbo can put out that much and see how much it lags. Then go down the ladder untill I find a happy medium. Wow don't know if this forum is for me at all!
#17
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Remember this is roughly I know all about different turbos, timing, intake flow, transmision, differential, etc...
#18
Max boost is a very scientific term. They are not weak or noobish. Hell one minute after I started this thread another member with thousands of posts asked the same question.
I have only been rude when people were rude to me first. I have thanked people when the gave good info and told people who wasted my time to **** off.
There is a balance between power and lag. I need to know the max boost a engine can handle so that I can compare what turbo can put out that much and see how much it lags. Then go down the ladder untill I find a happy medium. Wow don't know if this forum is for me at all!
I have only been rude when people were rude to me first. I have thanked people when the gave good info and told people who wasted my time to **** off.
There is a balance between power and lag. I need to know the max boost a engine can handle so that I can compare what turbo can put out that much and see how much it lags. Then go down the ladder untill I find a happy medium. Wow don't know if this forum is for me at all!
Also wrong about max boost. Boost power. Boost is a measure or restriction. When selecting a turbocharger for an application, you first decide on a power goal, then look at various turbos that will get you to that power goal.
AGAIN, IF YOU'D SEARCH ALREADY YOU"LL FIND ALL THIS INFO IN THE FORUMS FAQ! HINT HINT!
And if you'll look at the guy that asked "the same question" you'll see his title says POWER, not boost.
#19
Max boost is a very scientific term. They are not weak or noobish. Hell one minute after I started this thread another member with thousands of posts asked the same question.
I have only been rude when people were rude to me first. I have thanked people when the gave good info and told people who wasted my time to **** off.
There is a balance between power and lag. I need to know the max boost a engine can handle so that I can compare what turbo can put out that much and see how much it lags. Then go down the ladder untill I find a happy medium. Wow don't know if this forum is for me at all!
I have only been rude when people were rude to me first. I have thanked people when the gave good info and told people who wasted my time to **** off.
There is a balance between power and lag. I need to know the max boost a engine can handle so that I can compare what turbo can put out that much and see how much it lags. Then go down the ladder untill I find a happy medium. Wow don't know if this forum is for me at all!
yes max boost is a scientific term but for what. my build motor can take everything my 2854 can throw at it and not break a sweat (providing a good tune). What psi that is I have no idea. Like I said earlier 15 psi on a 2554 is worlds different than 15 psi on a 3071.
Lets try this. What are your goals with the car? What do you plan to use it for? How much money do you have?
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#20
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Wrong. On several accounts. You need to respect all the senior members of this forum, even the ones that are being rude to you. Underneath their rudeness is good advice. Regardless of what you think, they're right. 6 months from now you'll look back at this thread and laugh, and realize what a dick you were and how you should have taken Sav's and other "haters" post more seriously.
Also wrong about max boost. Boost power. Boost is a measure or restriction. When selecting a turbocharger for an application, you first decide on a power goal, then look at various turbos that will get you to that power goal.
AGAIN, IF YOU'D SEARCH ALREADY YOU"LL FIND ALL THIS INFO IN THE FORUMS FAQ! HINT HINT!
And if you'll look at the guy that asked "the same question" you'll see his title says POWER, not boost.
Also wrong about max boost. Boost power. Boost is a measure or restriction. When selecting a turbocharger for an application, you first decide on a power goal, then look at various turbos that will get you to that power goal.
AGAIN, IF YOU'D SEARCH ALREADY YOU"LL FIND ALL THIS INFO IN THE FORUMS FAQ! HINT HINT!
And if you'll look at the guy that asked "the same question" you'll see his title says POWER, not boost.
A car can have 500hp and 400hp but be only running 30psi. Both of which would blowup at that same psi but not hp.