I'm not sure how it relates to the 4AGE, but the only reason to even have a 1:1 FPR on the turbo MR2s is to overcome the pressure of the intake charge when trying to inject the fuel. The added fuel pressure just helps get the fuel out into the stream, not really adding more fuel.
12:1 (12 psi of fuel added for 1 psi of boost) seems insanely high.
I have only seen them as high as 4:1.
there is no cheating the 4AG-E ecu 'properly'. many have used the 4AGZ-E electronics with good results. if you are trying to go the cheap route, at least get megasquirt. there are so many good aftermarket electronic devices that could be of use.
that's a big damned turbo to hang in the MkI.
That would make it run mad rich.
ToyoTech is right, you should just get a decent (read: not wallet draining) piggyback computer. A full computer would be the best, but that can be mucho-expensive.
When you say "cheat the map" do you mean the manifold air pressure sensor or the compressor boost map?
If the later... I didnt know you could.
Hyde?
Last edited by SpeedballTrix; 08-17-2005 at 03:18 PM.
we don't have a MAP sensor for USDM 4AG-E's otherwise tuning would be a bit easier.
mega squirt isn't that expensive. you could also use a larger injector, but control of duty cycle would be a big zero without engine management.
yah, true.
now the only way to reprogram the map is through engine management. one could use an SAFC, but the thing is, it doesn't do anything for true duty cycling. it also just lies to the ecu. true engine management would alter the actual signal. you could do all of the little tricks known in order to richen up the mixture and hope it is rich enough at boost, but that is like playing russian roulette. i mean, you could use larger injectors out of say an SC or wait...i think the SC injectors are different...like way different than the NA's, so unless you sourced some larger injectors like say from a hi-comp 4AG-E (i think those are larger) then 440's or the SC ones won't work. and if they did, then they would just have everything pig rich.
happy to hear from u guys . i cant buy a EMU Not in that position rite now . An AIC is what i can buy rite now . what do you say about it .
Till where i can take the boost on stock engine . useing AIC ,.
I think Ill control the injector through (Additional Injector controller ) By HKS . As i was told they are best for this purpose . ...2 injector of 200cc or 300 . i will install them 6 inches after the throtal body ,. Ill use a wide band O2 sensor for tune A/F ratio . that's what i have in mind ,. ill go for 13:1 .
what do you say about it .
i m not playing with stock fuel system . the AIC will work As a fuel managament system .
AIC controls 1 to 8 injector with controlable duty cycle . can easily fuel till to 15 psi or above .
happy to hear that .
what should i do with map sensor . how can i trick it . i was told to use Bleed valve . And a SAFC /.
ON the other hand if i have to use a SAFC Then i can also use large injector and control them with SAFC . then i dont need to use a AIC .
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