i know this was most likely covered a million times but i dont have enough posts to see far enough back to see if it was covered. how much does it help/ hurt to go to an aftermarket BOV/ external wastegate. or just stay with the stock. any info helps thanks!
Please include more details regarding your car and proposed mods. No one knows if you have a heavily modified 500 WHP '05 STI, or a stock '02 WRX.. Here, following these nicely outlined rules in your original post may help you get the answers you're looking for.
I'm guessing he has a near stock 2005 wrx from previous posts. I would go with none of the above for your first power mods. Unless you are going to be dropping some serious cash, the 500$ for the ewg setup could be used elsewhere for better gains.
Also remember Readymix means serious buisness. He will snap you in the nuts with a rubberband as stated in his how to. Lolz
My 02 wrx has a tial bov that was on it when I got it and it does make the car stall sometimes when just creeping forward at a stoplight, drive threw etc. If I wasn't so lazy I'd take it off and put it back to stock.
I guess I thought I read somewhere on here that it was because of it having a bov rather than a bypass valve.
It's from having a BOV that hasn't been adjusted for the boost you are making, or just having a crappy BOV. If properly adjusted it shouldn't have any negative effect other than the occasional rich condition during shifting.
Wrc10 if your confused in why bov vs. Ewg doesn't make sense maybe this will help, or you may already know and just stated it in a weird way. I dono. Here's a decent diagram although replace bov with bpv and draw a hose from it back to the turbo inlet. That's how it is in stock form anyways. Linky in case the picture is hard to see http://www.clubwrx.net/forums/engine-modifications/134326296-exhaust-intake-flow-confusion.html Here's your ewg.
ok it is not a first mod, but i dont have serious mods, 16g td05 turbo, 800cc injectors, STI TMIC, turboback exhaust, up pipe, intake, and tuned. i am new to this whole thing but does the WRX come with a BOV stock? i know i dont have an atmosphere bov, and i really dont know much about the EWG. maybe im totally confused as to the EWG, i admit i dont know much of anything about it, im just wondering should i get away from the stock BOV or whatever it is, or is this kinda just a personal preferance mod?
an EWG is un-needed, the wastegate you have should be more than fine. if you've got an atmospheric valve, its already not stock, as the stock recirculates.
lol thanks bullwinkle, sadly i just read that thread right before i posted this and was just being dumb i guess
the only reason to upgrade your stock bypass valve (which is a recirculated bov) is if it's not holding your boost. (unless you just want one that's louder) what's your peak psi?
thats what im sayin i know i dont have an atmospheric one, but what is better what i have on there (the stock one) or an aftermarket one? does it matter? is that a personal pref? is an atmospheric one bad for the car (i have read both ways, on a few subie sites)
my bad, I just misread that. if the stocker isn't misfunctioning, its not really needed by any means. but most like the sound of a bov more than anything
true and i kinda like the sound but i have heard that there is something there when you go from a recirculating to an atmospheric it makes you have rich spikes?? (totally going off what i have read, dont know if it is true) i just want to make sure that if i do change it, its not going to hurt the car none
No need to be alarmed. Again, the real "problem" with aftermarket BOVs is had by simply bolting one on and expecting it to run perfectly. Most BOVs have some sort of adjustment to them, be it internal spring pressure by way of shimming, a rotating top that increases/decreases pressure spring tension, or some other pressure bleedoff set screw type thing. Worst case scenario on this one, you'll probably stall it at stop signs on occasion if you forget to give it enough gas or you'll afterfire alot on shifts because of the rich conditions during throttle lift between gear changes. Neither of which is going to destroy your car.
http://www.fastwrx.com/insnre.html ^^This will help if you want the BOV sound with the stock bypass. It will get rid of the snorkus and still allow you to use the stock air box and scoop. Also an afta MAF tube will help with the sound. That way you do not have to worry about making sure you have the BOV set up right. Total for both parts is about the same as most BOVs and will give you 2 or 3 HP too. http://www.fastwrx.com/saaiho.html ^^Here is a link for the afta MAF tube.
im running an aftermarket short ram so i dont know if that setup will work? im just thinkin im going to leave it till something stops working or i can get a cheap BOV (for the price there are other mods i can be doing)
With the short ram, that set up can not be used. It is for the running of the stock air box, just did not know what set up you had, so I threw it out there. But with the short ram you should be able to hear the bypass pop while shifting, it is just not as loud as a BOV.
thanks anyways, like i said if i can find a BOV for cheap ill try it out, otherwise i can put my money somewhere else
Why do you want to put on a BOV or EWG? Is the car running well right now with the current mods, are you trying to fix something, or are you just trying to make more power? Based on all of your previous posts, I would strongly suggest doing some more reading and research prior to changing any mods on the car.
