lol, ya it was confusing.
ya i would put it on.... but i would get a retune when ever you can.

 

Never claimed to be an expert...just someone who repeats what the experts tell me.

 

then you must of misunderstood. the ecu does not read off the O2 sensor. it uses the maf to calculate load (could be considered as boost) and references a certain afr number from a fixed table.

 

I know that the new bmw 335i, with direct injection, uses that way. it has a wideband sensor, and constantly adjusts the afr to meet the fixed target on the fuel map.

 

You should be fine, if you have a boost gauge you may notice the boost will increase slightly, so if it does increase, just drop the psi a pound or two.

Throw it on, get a tune when you can. Better yet, get some cams and an alky kit and then get it retuned

 

How then does it know if you're running too lean (P0171 System too lean) or Rich (P0172)? By reading many sensors including the O2. Just throwing that out there...

Anyways, cooling the air (as an FMIC does) does not add or take away oxygen. It condenses it. This will of course change A/F's somewhat but not drastic enough to require a tune. Hence my statement of not neading a tune if the outside air temp drops 10 degrees or more. You're car runs stronger yes, but the ECU will compensate for any AFR change by what you just said, looking up AFR correction tables.

 

lol.. so confused... yeah i plan to get it tuned with my GSC s1 here in november....


just didnt want to slap this fmic and end up with a cracked piston or something down the road.... I am very conservative.

 

that code will happen during closed loop operation, where the front O2 sensor will try and achieve a stoich (14.7) ratio. the front O2 sensor is not used when the car is in open loop (usually when in boost)

 

DUDE! Just put it on and monitor your boost as it will most likely drop a bit. Most likely there won't be any change any how. Also, your AFRs will not be affected. Like one of the previous guys said you'll just have more consistant intake temps thanks to better heat dissepation. You will be fine without a tune. Again, you're ok

 

Gotcha...

Anywho, back to my original statement. Every time I've seen someone ask a vendor/tuner if they need a tune for an FMIC I seem to remember seeing "no" as the answer.

 

Whitersevo,

Yeah the temps are already in the 100's here in AZ now. I had a huge FMIC on my Evo 8 MR and ran it after I got a tune on my previous set up (stock IC).

You car should be fine but eventually you will want a tune later on. My massive Nisei IC core of 25"X13"X3.5" was quickly removed and sold about 6-7 weeks after I bought it.

I couldn't stand the turbolag for a single extra second. Even after a retune the IC just killed my spool up and dragged permanently a couple of extra PSI on my stock turbo. I know many of you are thionking, why haven't you raise the boost up after the IC install?. I did, but the Nisei IC robbed me LBS of boost, plain and simple.

After I sold the upgraded IC my car gained instantly the spool up and the car started spiking to 31psi. Ended having to turn the boost down.

Facts: My Aftermarket IC robbed LBS, slowed my spool up, did not increase HP nor tq on the dyno and did not improve my track times at the track.

Carlos

 

interesting. i saw a ~2psi increase after i installed my ssautochrome IC. that was consistant with what i read, because of the inefficiency design of the stock IC.

 

Yeah I read your thread about the Nisei intercooler... I guess I will just have to install it and see if I get the same effects... other than that the Fmic is going to be going on tomorrow.. whoo hoo lol thnxs for your feed back fellas.

Brian


P.S. Carlos I am very very jealous of your GSX, that thing is going to be a quick little beast....

 

Read my posts/reviews:

https://www.evolutionm.net/forums/sh...d.php?t=183785

https://www.evolutionm.net/forums/sh...d.php?t=183785

I can't honestly make statements on other IC without testing them but given the fact that WhitersEvo is in AZ , given the fact that I have done xxxxxxx dynos, xxxxxx track passes at SIR and PIR and retune before and after I can at least make a fair and neutral opinion on a similar case.

I hope he does not run through the same issues. Perhaps my turbo was maxxed out to start with, who knows.. the important thing is that I always put my own sources without BS or exagerations.

Carlos

 

Thanks about the GSX compliments Brian!! My Evo 8 MR turned me down on my last batch of money I spent, basicly I dumped $2500 on extra mods that reported me zero gains, zero increase in performance at the track and a huge dissapointment, project Evo 8 MR was over a while ago..

The same money spent ($2500) on a Eclipse which reported me and extra 127whp/129lbtq on a AWD mustang Dyno on 91 0ct. Now it is a new level with the Eclipse, this car is my track bitsh.

Anyway, I attached a couple of links so that you can see my review. Please don't take my negative feedback, there are many many people that reported big improvements with an IC, I just happend to not be one of them.

If you need help on the install, I will do it for free, you just need to drive it here to Tucson.

Carlos

Now is a revenge,