i've never turbo'd a car before so i have a few questions on how to figure out what psi your running. i know wastegates have pins in them that open at a certain psi and allow exhaust to dump out of them. does that mean thats the max psi you can have?

also why do you need the 3-4 bar map sensors? is it to read all the extra air your intaking that being forced in by the turbo? and exactly how much psi does a 3bar map sensor read.

and is it possible to just install a turbo kit and not tune it? and be able to drive it on low psi saftely without risking nothing. just pushing like 300whp

 

Wastegates have springs rated at various PSI. This limits your boost unless you have a boost controller as well.

The MAP sensor in the S2000 is meant for NA applications but can safely read up to about 1.8 BAR or 10psi above ambient pressure. Any more boost than this and you need a MAP sensor with greater range. A 3 BAR MAP sensor can read up to about 28 psi above ambient pressure.

It is possible to just install a turbo kit and not tune it if you are a complete idiot and like to rebuild engines on a regular basis.

 

well i was just asking cause if i was running a lower psi that wouldnt hurt my internals like say my wastegate opened after 6 psi. would i have to tune it even though im only doing 6 psi of boost.

and what exactly does the boost controller do to change it? i dont understand how it changes the psi that the wastegate opens?

 

Well 6 psi is more air and if you ain't running more fuel you're lean. Leads to detonation, leads to cracked rings and an engine rebuild.

Boost controllers work by channeling pressure or vacuum to the under or upper side of the wastegate diaphragm. So they can hold the wastegate closed until a certain pressure is reached then open it.

 

so i have to pretty much add the wastegate with bigger fuel injectors and then get it tuned so that the fuel to air ratio can be safe while running the desired psi i want? isnt it supposed to be around 12:1 air:fuel?

is there an ems that can allow to me like connect it to my laptop and change tuning diagrams at will pretty much that will change my psi and fuel injection? can the krpo do that?

 

AEM or Hondata is what you want. That and a good tuner.

 

i wanna get the kpro but is it possible to change the psi like that? using my laptop to switch through tune maps at well. already programmed with fuel and air ratios and different psi levels?

 

No idea on the kpro.

 

ok thanks for the info. i know their dumb questions. i know pretty much how the mechanical parts all connected so it was time to learn how it all actually worked

 

Honestly, these questions and more are answered in great detail in a few books; Forced Induction Performance Tuning by Bell and How to Tune and Modify Engine Management Systems by Hartman are good places to start. Read these you will have an respectable foundation. There's much more there than what you'll find lurking around the internets. Moreover, the yield on your time investment is better.