Im in the process of supercharging my car, Just waiting on my updated bracket to come in from the dealer.

My question is this, Everyone stats here that: S/ced with trd tune. 9.5 is the most you can run.


And also everyone stats here that our stock ecu can adjust itself to handle more boost. As in the zpi stage 0 kit.


So, What is the limit on our cars running more? Is it the hot air? or is it the tunning? Is our stock computer SMART enough to see the extra boost and provide more fuel?

For instance Say i run, 12-14 pounds Forge 007 and a FMIC.

Will my computer see the extra airflow and try to compinsate?


Thanks in advanced for your response!

 

Well you can do that, but the FMIC is going to drop you back down to about 9-10 psi..... have you ever gotten your car up to 10psi? I have the car does not like it it will drop really low idle afterwards and stutter really badly.

 

What does boosting up to 10 pounds affect to make the car idle badly? And does a small IC really have a flow drop of 2-4 pounds?

 

it's not the size of the IC that makes the boost drop, it's all the piping that is involved.

and i dont think it's a good idea to be running 12-14psi on just the trd tune. i never really understood how they got the stage 0 to run without any tuning, but what i got from the debate was that the boost levels were low (5-6psi), so the ecu somehow was able to adjust for it.

 

The size / dimensions of the IC has a lot to do with pressure drop. The longer your rows are the more drop you experience typically. It's good to make sure your IC is thick too - that helps in cooling and minimizing psi drop.

 

let me put this simple w/o future reply - 10lb's were tested and it leaned out a tad so it was dropped to 9.5 and no other mgmt was needed excect the trd tune.

a FMIC is not what you want because you will need to run a smaller pulley to keep the same boost as you have because you will loose 1-2lbs of boost w/ the pipes. Its proven that using methanol is the way to go. The blower is not the best and you dont want it running any faster then needed. I rather see you running 12lbs to get 12lbs boost ...not get 10 because you have a fmic. I have a 10.5 pulley going on in 2 weeks and i have the eman ult.

 

ah i see, thanks for the info. but in the case of the s/c, even with a small FMIC, the amount of piping it takes is the bigger factor. A top mount like how the subies have them would probably be more efficient but that'll take some modification.