i want to run about 5psi on my b16. you have to start somewhere, and thats where i plan to, within my budget.

so, i have a good understanding of how a turbo system works now after doing my research, but i have a few questions.

1) i definitely want to go internal wastegate to avoid fabrication that im not capable of. as i said i want about 5psi, but it has eluded me how to "make a turbo 'give' a specific amount". correct me if im wrong, but a turbo produces a set amount of boost, right? so, if thats true, what would be a good 5psi internal wastegate turbo.(yes, i am willing and planning to tear out of a junkyard if possible)

2) second, with only 5 psi, what steps will i need to take as far as engine management? ive read that some normal ecus can handle 5-7, so would i be set to go once installed?

 

Buy my Garrett T25g. I have it up for sale on HT for cheap. It is internally gated, and will be within your power goals. It can handle a max 15psi, which is plenty enough for you.

 

You read very wrong. An ECU has nothing to do with psi. It is a means of controlling different variables that can potentially detonate your motor. It controls timing, ignition, fuel, etc.

Hondata s200 or s300 should be sufficient for you.

 

thats not what i meant, i meant, assuming that a turbo has a set psi (does it?), then for a turbo that runs 5psi, would i have to modify the ecu to compensate for extra fuel ect, in other words, would i need a tune if only running 5psi.

but you say the turbo youre selling can "handle 15psi", how do you determine how many psi it runs?

 

in other words, do you buy a 5psi turbo and get 5psi, a 10psi turbo and get 10psi ect, or are they "adjustable" so to speak, and if so, how do you determine how much boost you will get?
sorry for all the questions but this is the main issue thats confusing me and i cant seem to find any answers on the web.

 

IN OTHER WORDS AGAIN lol,

basically im asking:

is it possible to bolt up a turbo set up with a small turbo, something that supplies about 5psi, and drive away functional, without ecu modification?? and if so what would be a good charger to use?

or no, thats stupid?

lol, just looking for the answer!

 

not to be mean but you need to do a lot more research before you try to go turbo. there is no such thing as a "5 psi" or "10 psi" turbo. the psi is controlled by a wastegate. the wastegate has a spring in it that has a psi level, most of them have a 7 psi spring to start off with and that means that you will run 7 psi with out doing anything else. i dont see you finding a 5 psi springed wastegate. why are you only wanting to do 5 psi? thats a waste of money. as the guy stated above the stock ecu does nothing for boost, you will have to get your car tuned. you can find anything you want to know about turbo kits on the web all you have to do is look.

 

ive looked alot actually, yes i know the wastegate controls psi, but i was asking if you could get more or less out of a turbo.

5psi would be a good number because im just looking for a little added power and dont want to build the engine and want to keep it safe and reliable, which is why i asked if there is a turbo with internal gate that will run 5psi, you say there is none, so that answers my question there, thanks.

now, i have read (whether it is true or not) that stock ecus are capable of compensating for low boost (5-7psi), which is why i asked if a tune would be necessary and assumed there was a turbo capable of running 5psi, but you answered that as well, no, there isnt.

i have done the research, but there was a few things i was unsure of and could not find the answer, which is why i asked people who know here, so thanks.

 

i guess i just misread how you were talking, it just seemed like you knew nothing at all about turbos. as far as the psi, you can run 10 psi and still be safe and if it were me and the motor was in great shape i would run 15 psi and get a great tune. every turbo will run 5 psi but its about the wastegate. as i said before the wastegate has a psi rated spring in it and that means once that spring sees that certain psi then the spring will open up. with out a wastegate the turbo would just max out the psi and most likely blow your motor. what im saying is turbos dont have a limit, to a certain point. the only way i could see you only running 5 psi is to get a boost controller and setting it to 5 psi. if you want to stay in the low psi then i would just run it off of the wastegate spring at 7 psi.

 

A tune is still recommended. A greddy Emanage is also a good route for something that is not as detailed as Hondata or full EMS.

 

a greddy emanage (in particular the ultimate) is a piggyback system, basically you can add fuel based on a % value via your laptop, i actually have the plug and play harness for sale in the classifieds for obd1 integra's with the H3 ecu, but i sold the emanage itself this morning. You can use a wideband controller plugged into one of the option ports of the emanage to have it self tune based on AFR values that you preset across a map table.

 

money saving 101

 

Before sorting through any more mis-information, go to the Forced Induction forum and look around. The FAQ at the top of the page may answer a lot of your questions

 

yu dont messure a turbo by psi thats a totally diferent point.... yu messure a turbo by pounds of boost if yu runing 5 pounds of boost on stock block and pump yu still need a tune and a chipped ecu cus yur motor might need a lil more gas than a stock ecu sent to yur motor in other words yu might run alil richer thats better than ran in lean if yu want yur motor to last or be a daily driven

 

And what does PSI stand for?

 

Lol he aint even worth the effort.

 

"Pointless Stupid Information" in his case. That perfectly defines his post.

 

pressure by square inch thats only use when yu have a gauge and yu know how yu runing to see if yu have a leak or anything wrong.... but pound is use for power that turbo sendin to the motor... if ima wrong for someone else plz correct me with good information not with bs.... i hope this explain wat yu ask for buddy

 

Pounds per square inch.

 

people like this that make me think i know alot about hondas.

 

First of all, anytime boost is added a tune is required. It doesnt matter if youre running low boost or not, just the addition of the turbo maniforld and the turbo itself adds restriction to the exhaust flow and will make your engine run hotter than what Honda has tuned it for.

Don't use the greddy emanage, there are way better alternatives out there. The emanage is not precise and if you want to add more power later on it will be your bottleneck. Even tuning on Chrome is better, and if you want to up the boost later on then you will still be okay.

Now for your turbo choice, pretty much any turbo will work for your requirements. Just visit the junkyard and see what you can find. A Mistu 2g would be a good starting point. All turbo setups WILL require fabrication work. That is unless you buy a setup that is ready made specifically for your application (e.g. fullrace), but then you will be paying $$.
My advice: Get to know a good welder/fabricator

 

tacomez finest^^^ yu shud of come to ny and lets lock it up dude lets see if yu know alot bout honda
and for speedoptions i totally agree with yu finally someone get it into my point

 

im never gona sell this harness with that attitude :p

 

ya because it is completely logical to go to NY to see who knows more about cars.

 

yu shud of let me show yu wat my knowlegde did and to smoke yur *** with my low 10sec 4dr daily driven