yea i think he wants to go with the pda & rtek thingo. should be interesting to fool with some new stuff .







i just never knew you could run a stock ecu on anything over basic bolt-ons. learn something new all the time







kevin.

 

well you can, but doing so you'll find out why nobody does. basically the s4 stuff is tuneable, but its limited. like timing, you can turn the cas, which means somewhere the timing is gonna be wrong. or you can play with the afm spring tension (MARK WHERE YOU START!!). also you can put larger injectors in, the gsl-se's do this the worst, but i notice it on the t2 as well, once you have the big exhaust and the intake on there, the car is too lean at cruise, and then up top, 20% more power takes 20% more fuel right? so if you go from 180 to 220hp (20%) then running 660cc injectors (also 20% more) all the way around gets you (in theory) the same mixtures as factory. in reality the car is rich stock, and can do 220 on the factory fuel system, but you see where i'm going right?



add an f-con and maybe a gcc to fine tune to this, and you can actually make some decent safe power. the last engine in my t2 ran 550/680's and drove fine, under part throttle sometimes you'd feel the secondaries turn on, but most of the time you'd never know



just use your head and err on the side of caution

 

i dont know if i'd feel safe with no managment sytem

 

well i'm kinda recomending an fcon at least (i'm running an fcon on a stock na ca...)



but yeah this is meant for more mild setups (stock turbine, 12psi or less), and if you're not confortable doing it dont. standalone should get you slightly more power, with much much better driveability

 

For a piggyback greddy e-manage blue is probably the best bang for the buck.You can tune it with laptop and you can control ignition(to a point) and it also cames with an additional injector map to run 2 add-on injectors.You can pick one up for roughly the same price as an apexi SAFC.HKS fcon is useless 15+year old technology,and only worth considering if you acquire one for next to nothing.

 

yeah fcon is old school but it does have its pluses



1. they are cheap used

2. they go between the ecu and the injector, and not between the afm/maf and the ecu, so it only changes fuel, all the others change timing too, as the timing is computed from the afm signal.

3. the fcon is a faster processor, so the car actually does run a little better.



not saying its a cure all, or even the best solution, but on a stock ecu car, i like em