thanks for the linkl it really helped! I still don't understand what a map sensor is... and do i need to have a v-tech engine for this setup to work? also with bigger injectors what is the stock size and what is a common size for boosted applications?

 

The map sensor is right top of the throttle body.
No you dont need vtech, and you wont find a turbo that is vtech only, but vtec in general is the reason turbo's dont spool up at lower rpm's and why you hear people complain about turbo lag on hondas, cause vtec kicks in and that larger lobe is spinning allowing more exhaust through which is why a t3/04 turbo usually kicks in at around 4000rpms. Vtech is usually set at 4250ish for stock, changing the ecu and having vtec kick in say at 3250 would help the turbo spool faster.
If you just use a few pounds of boost (around 6psi) you wont need to change your injectors, but if you change your ecu upgrade your injectors too. Stock injectors are what, 250 cc? maybe a little bit less, not sure on that one.

Keep in mind, this is just my opinion tho, its going to be the same route im going, when i upgrade my ecu im going to upgrade the injectors and fuel rail.

 

is there any other company for high flow fuel rails that are good besides aem?

*Oh, and is the hondata considered an ECU or does it piggy back the stock computer?*

 

I installed an OBX one and I've had no problems with it at all. Looks good and it seems to get more fuel into the motor so I'm a happy camper, nevermind that it was way less than an AEM one.

 

Hondata is a rechip for your stock ecu. There are also stand alone units which have the s100, s200 tags which i believe still use one or two of the plugs from the ecu to run everything

 

so are these neccisary (SP?) or optional? do you recomend them if they are optional?

 

Optional to a point. Recommended before that point because there are some things that you cant account for relying on the stock ecu. Plus it it makes the possibility of premature detonation extremely unlikely when youre running low boost. But as long as the system is setup right, its unlikely for that to happen. With the upgraded ecu installed your car will perform better on low boost because it will have better fuel maps then the stock system, and timing will be controlled properly on the ecu.

 

are the units vehicle or engine specific or are they pretty general in there applications?

 

i believe its ecu/engine specific, Most fuel maps will be defined based on max rpm and displacement of the engine, then different injector types will be defined because obviously the larger the injectors the more fuel that can be put in and the shorter the amount of time that the injector needs to be open, in turn the larger the displacement the more fuel and air that can be crammed in.

But you will see at the hondata site the S series modules are for civics and preludes of certain ecu types, like mbo i believe said that he has a p06 and a full s200, downside is its probably got fuel maps defined for a h22 engine which runs a bit different from an f22.

So, if you plan on changing your ecu, do research on the specific ecu's you might want to drop in your car, or find out if it would be better to just chip your current ecu.

 

what about turbo timers. are they neccesarry?