Any disadvantages to venting to the atmosphere? I remember reading bad things about Subaru STi's venting their BOV. The air that was being vented had already passed the mass air flow sensor and was "counted" so fuel was being injected to account for it. Hence people were having trouble with extremely rich conditions when the BOV released pressure.

Besides sounding cool (ricerish maybe ) any advantages to external ventilation? Probably not?

Again, thanks for all the info. I live for this thread at work right now. I check it about every 15 minutes

 

IF (big "if") the system is recirculating compressed (and hence heated) air back through the supercharger (which is the way I *think* it's done) then a valve that vents to the atmosphere would yield somewhat cooler air when the throttle is initially opened and the BOV closes. That *might* make a small difference in throttle response. Perhaps one of the guys who's already converted to an externally vented valve could say for sure whether or not there is actually any noticable difference.

As far as it being "ricey," I tend to feel that the whole idea of rice comes from garbage like The Fast and the Furious, and I refuse to allow a popular fad to run my enjoyment of my vehicles. I liked induciton noise, supercharger whine, and loud exhaust systems before the kids in those silly movies were even born.

 

In cars with MAFs once the air goes in you shouldn't release it because the engine is expecting it. Our car doesn't use a MAF so it isn't an issue.

With regards to the heat issue, when you compress it it gets hot, when you release it into the intake and it expands it get cool again. So there is no real difference heat wise.

Red - You can't point to 2F2F as the source of the 'rice' idea. Those movies were a reaction to the whole 'rice' scene which dates back to the 60s. In my opinion, rice is when you get your priorities wrong; when you go to a certain amount of effort to make your car look/sound fast but are achieving nothing or actually making it slower. As far as I'm concerned when you start modifying your FI system for the sake of 'noise' that is rice.

 

Heh heh... Rice...

Now rice does have it's place in the world, and that is as the support chassis underneath a fresh slice of sushi locked and torqued down with a band of seaweed... Don't forget the Sake!

Sorry, I couldn't resist.... The rice that is...

 

Ah yes...another question:

After the shop does the install, how can they tune my system to insure that the install was successful/engine is in good running order?...I won't have any standalone tuning tools (AEM EMS, Emanage, etc.) Maybe it's a good idea to get a standalone ECU, but frankly, all I want to do is slap this baby on and be done with it.

 

I was going to contribute but AusS2000 really gets it spot on (Xviper etc too)

Someone on the same wave length!

MB

 

Well quit making it harder than it really is... slap it on a be done with it..

 

If you really are trying to be careful, why not just ship the car to Comptech and have them do the install/dyno/triple-check?

 

Alright alright. I just want to protect my investment. No need to be jackasses about it. These are legitimate questions and I am getting legitimate answers. I am admittedly not well versed in the art of supercharging and this post is helping me out (and others I am sure).

SIIK2NR, I am not making it any harder than it has to be. I just want to be prepared for the plunge. I am not modifying my baby until I know everything there is to know. I want to be sure I do it right the first time to ensure there are no second times.

 

I don't think anyone is being a "jackass" about anything - a little levity perhaps, but not anything offensive. If you took it that way, maybe that's your problem in the way you interpretted it. Everyone here has tried to help. If you have been reading everything that has been posted and understanding what has been posted and paying attention to what has been posted, you will have realized what the answers truly mean for your situation.
The only thing that may have led you astray was when someone posted up information to tell you to start modifying the stock kit when clearly, this was not your original intention. That particular post was doing you a tremendous DIS-SERVICE! However, someone in the know immediately posted to contradict that poor advice. I trust you noticed and understood that. I wish that people would just read the damn question and NOT reply if they are not addressing the question or are simply promoting their own agenda.
The other thing that kind of sidetracked this thread was the discussion into BOV sounds, etc. This got a bit off topic when the subject of "rice" somehow got thrown into the mix.
I would suggest that you re-read what's been posted so far and sift out the garbage and irrelevent information and stick to the answers to the questions you asked.
Suggesting that someone is a jackass will not make anyone want to help you in future. If you want help and advice, you're going to have to learn to take the good with the bad and deal with it in a civilized manner. If you can't, you will find yourself being ignored.