I was just wondering how many PSI's you can push into the s2k before you have to start doing engine work, (i.e low compression pistons, cylinder wall sleeves, etc.) Thanks

 

There are $10's of thousands of dollars worth of upgrades needed before the stock engine will let loose. Given you have a good tune it in and you maintain it properly.

 

pretty dry question. i have been wondering the same thing. i have heard people say 15 is the safest you can go but then i hear guys say that you can run 25 all day. but i dont think the amount of boost matters but its more of what that turbo is able to put out at that pressure

 

Good question, I hear 10psi from the vendors that want to sell us head gaskets that I have heard from nearly every purchaser fails within 20,000 miles even when new torque to yield head bolts are installed.

From fellas on here I have heard on aftercooled novi 1000, it is 14 psi. If s2000s are anything like the Miata, you can look at cfms. For example a Garrett t2554r on a Bp-z3 engine, given the intake temps are the same have to spin up too 15 psi cause they are too small to be efficient at higher boost. That is the threshold of the stock internals with that turbo. On a much larger turbo, like a 3071r, it is 12 psi, and it easily makes the same horsepower... If you spun that thing at 15 psi on stock internals your rods would eventually fail...

I don't quiet understand how it works... Something about pressure vs volume... A Novi 1200 produces the same volume of air at 12 psi as the Novi 1000 produces at 16 psi...

 

Ok well i'm not worried about the price of the parts I just want quality parts that will ensure i get the most power without destroying my engine. I am somewhat new to turbo kits. the only parts that i know of are cylinder sleeves and low compression pistons. what else would i need to fully build my engine for boost

 

73 psi

 

You need to read through this forum, and locate at least 4 to 5 "build threads" from other members, that will probably give you the best idea of what others have done, enable you to evaluate what you might like to do, and give you an idea of some of the parts used, costs involved, and pitfalls others have experienced.

As far as your "How Much Boost is Safe for a stock motor..?" that question has too many variables to throw out just one answer:
1. Type of fuel you are running / using.
2. How much fuel you can push into the cylinder (fuel pump & injector capability).
3. What fuel management system you are using / how the fuel is controlled.
4. How experienced & well versed the shop tuning the car is in tuning a Turbo S2000 engine
5. Type & Size (hot & cold side) of the turbo you select
6. Intake cooling capability & Intake Air Temperature

I'm sure there are other factors, but these are just a few things that all play a part in the "How Much Boost can I Run..?" question.

 

Not a bad way to spend $10,000

 

You need to read through this forum, and locate at least 4 to 5 "build threads" from other members, that will probably give you the best idea of what others have done, enable you to evaluate what you might like to do, and give you an idea of some of the parts used, costs involved, and pitfalls others have experienced.

As far as your "How Much Boost is Safe for a stock motor..?" that question has too many variables to throw out just one answer:
1. Type of fuel you are running / using.
2. How much fuel you can push into the cylinder (fuel pump & injector capability).
3. What fuel management system you are using / how the fuel is controlled.
4. How experienced & well versed the shop tuning the car is in tuning a Turbo S2000 engine
5. Type & Size (hot & cold side) of the turbo you select
6. Intake cooling capability & Intake Air Temperature

I'm sure there are other factors, but these are just a few things that all play a part in the "How Much Boost can I Run..?" question.
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Ok thanks man

 

You can't just step in the ring with Ali cause you think you can box.