How effective would you say upgrading injectors is? Is there a noticeable difference? Is there any hp gains?

 

injectors don't just do it you need a good powerful fuel pump and filter to deliver the goodies then their is the intake to consider

 

F-A-M fuel air mix and can the car/engine take the punishment, lots of things have to be considered

 

Well I have an intake already. And I'm a 1.8t would upgrading to 225hp tt injectors make a difference. what would I need to feel a differernce

 

injectors will give a little performance then move on from their, there are so many thing to become fully blown and its expensive

 

dude you cant just throw on bigger injectors. You need proper ecu tuning to compensate Air and TIMING to make it usefull. Otherwise youll just run rich. An intake isnt gunna compensate for the added air that is needed, and theres nothin you can do for timing without a remap in the ecu.
Thats why APR and GIAC have "big injector" files for the ecu. APR Stage 1+ is one and the GIAC FX file is one. Both of which are only available for the B6 that im aware of.

 

sticking bigger injectors on makes the ECU compensate but not by much so you wont get the full benefit that's why the system needs remap but you need to look at all the issues ( not like he who puts a noisy exhaust on and thinks hes going faster ) when hes not

 

No the ecu does not compenstate.. As far as the ecu knows there are still stock smaller injectors on there.. It does not know about the extra fuel the big injectors are allowing to put out until you get a CEL from running rich/flooding the cat with unburt fuel etc. If it was safe or made an effectivedifference everyone would be doing it.

 

the ecu learns its adaptive

 

EVOMS has a big injector file for the B5. We have been down this road before. Thay say they do you guys say no one does.