Aftermarket B.O.Vs

[Striker187]

amen to that jred. being careful never hurt anybody.

 

[Ryan]

im not trusting them for daily driving at 15psi, at the track for a run or 2 or a dyno pull or so then yea, it's fine, but daily driving i don't want my injectors at more than 100% duty cycle. the stock injectors are really small for a turbo car. if you compute the duty cycle, they're almost maxed out already on stock boost. i'm not trusting them over 10psi, but i'd rather not blow up my motor so i err on the side of caution

i agree with you but like i said i'd rather have smaller injectors fully open than larger injectors somewhat open... but thats just me.. would there be an advantage of adding more of the same injectors we have more openings.. would that work.. to releave it some..?

 

[Ryan]

but hey... being careful never hurt anyone but without the guys willing to take a risk u'd never know the full potential.

 

[doggman]

doggman - you'll more than likely want a pro to tune the emanage fuel map for you. you use a laptop to program it. but i think with spool's program, it will come fully programmed so no tuning necessary, though adjustments may need to be made depending on your mods.

without the vacuum line connected, your bpv won't open. the bpv stays closed by either the use of a spring or in hks's design, the boost pressure helps to hold the valve closed. but to open it, the bpv needs the vacuum pressure to pull the valve open (i.e. when you let off the throttle). so essentially, i think you'll be running without a bpv.

but i have driven it and the bpv deffinitly opens. it seems like it is louder. i dont kno why but it seems as if the bpv has gotten louder. also will the check engine light come on?

 

[jred321]

so jred321 your tellin me that if i run 10 psi te injectors wont be able to handle it? man this sux. hopefullyi can run 10psibefore i have to get new injectors.

technically they aren't performing their job anymore beyond that, they're totally open and how much fuel going in is based on fuel pressure and isn't dependent on the injector anymore. while this is better for the atomization of the fuel, i'm not going to trust it every day. and i don't know if it is actually 10psi, that was just an estimate, im just saying higher boost. tuning is the key to making power, learn how to do that first before just throwing mods at things and hoping they don't blow up.

 

[jred321]

but i have driven it and the bpv deffinitly opens. it seems like it is louder. i dont kno why but it seems as if the bpv has gotten louder. also will the check engine light come on?

are you sure it was the vacuum line and not the return tube?

 

[Ryan]

10 psi... is fine.. i dont think they open full load till 12.. but thats just my opinion... becuz there is a major difference and feel between 10 and 12 psi.. theres a jolt... i'd actuallyb e willing to bet there open and not longer working much beyond that around 14 psi.

 

[jred321]

but hey... being careful never hurt anyone but without the guys willing to take a risk u'd never know the full potential.

true, but i don't want to push limits without being able to monitor them properly so i don't go blowing anything up or not knowing exactly why something failed, and i don't have a wideband or data logger among other things to really know whats going on in there.

 

[Ryan]

true, but i don't want to push limits without being able to monitor them properly so i don't go blowing anything up or not knowing exactly why something failed, and i don't have a wideband among other things to really know whats going on in there.

yeah yoru going the safer route and thats fine thats what i was gonna do till i got zealous so i guess i'll be one of the first to find out just how far we can push this... after my rebuild it wont be the same.. but i shoudl be able to monitor things alot better...

 

[jred321]

would there be an advantage of adding more of the same injectors we have more openings.. would that work.. to releave it some..?

you could add extra injectors, pruven uses 8 550's on the evo they submitted for the uscc, just plumbing/controlling them can be a pain

 

[jred321]

yeah yoru going the safer route and thats fine thats what i was gonna do till i got zealous so i guess i'll be one of the first to find out just how far we can push this... after my rebuild it wont be the same.. but i shoudl be able to monitor things alot better...

i would suggest a wideband and something like this http://pocketlogger.com/?page=prod&prod=obd2 to monitor as you push limits so if something fails you can see what it was and you'll know how to correct it, or you can hopefully see it just before it does fail so you can save yourself some money and not break it

 

[doggman]

are you sure it was the vacuum line and not the return tube?

ya because you can feel the suction from the line. ok you do bring up a real good point. you dont just want to through things on and hope the engne doesnt blow up, how would you go about adding mods but tuning them as you go. see what i dont understand is how do you tune the car when you crank up the boost to like 10 psi. isnt that tuning in itself? how else would you raise the boost. if i got the b.c and the b.g and turned the boost to 10 psi how else could i tune it. do you get what i mean. what else could i do. i want to run more boost but of course i want to do it safely. see what i really want to do is get the emanage fuel management system and then get the rfl bov. i also want to get a b.g and a b.c so that i can turn up the psi. but i also want to do safely. so what should i go about doning then so that i tun as i go and do tings right not quick.

 

[Ryan]

well i dont mean i plan on pushing limits once i do the rebuild.. more than likely i'll be settled with it were its at.. i'd be happy running 15 - 18 psi.. but if i get something like the obdII then i would be able to up it inch by inch till i can get the safest maximum yanno..

 

[jred321]

ya because you can feel the suction from the line. ok you do bring up a real good point. you dont just want to through things on and hope the engne doesnt blow up, how would you go about adding mods but tuning them as you go. see what i dont understand is how do you tune the car when you crank up the boost to like 10 psi. isnt that tuning in itself? how else would you raise the boost. if i got the b.c and the b.g and turned the boost to 10 psi how else could i tune it. do you get what i mean. what else could i do. i want to run more boost but of course i want to do it safely. see what i really want to do is get the emanage fuel management system and then get the rfl bov. i also want to get a b.g and a b.c so that i can turn up the psi. but i also want to do safely. so what should i go about doning then so that i tun as i go and do tings right not quick.

turning up the boost is not tuning, it's turning up the boost. if you turn it up to 10psi, you'll probably be fine in stock tune. beyond that you are going to need to control fuel/timing in some way. options are very limited right now. if you want to do things right, start by reading corky bell's book and leaving everything stock, then get some monitoring tools, then you can assess weaknesses in the system and fix them.

 

[doggman]

what do you jred321 think about te emanage system and being able to vent instead of recirculate? also what would i get to manage the car. i really want to turn up the boost but for now im only 17 and im still getting help with the payments from my mom and i cant go making haisty decissions and have the possbility of screwing things up. so for me i have to go the safe route. thanks for all the support -doggman

 

[Ryan]

dude i STRONGLY suggest u do not mod the car at all until 36,000 miles is up or until 3 years or up... just a suggestion.. trust me.. ur mom will be very pissed if u blow it up.. s*** happens the possiblity of u blowing it up at 10 psi isn't high but still possible.. i strongly suggest u leave the car stock dont put a boost controller on it,, cuz here's the real deal.. u do that, and blow the car up.. take it to mazda well u raised the boost the so that voids warranty on turbo then the turbo blew the motor up voids warrante on motor.. and it'll cost you 4,755.95 give or take 100 bucks here or there to have it fixed.. if i were u i'd stay stock until you get out from under mom's wing.. and the car is all urs and ur responsibility.

 

[jred321]

if you can't afford to break something, don't mess with it. emanage, once they release the one for our cars, will help with fuel. venting the bov is totally unnecessary, emanage could fix the problem by making the ecu think it has less air then it does during shifts and then send the right amount of fuel to the cylinder, but i don't know if it does or not, it may

 

[doggman]

see i kno venting is unnecessary but i like the pssssshhh sound and i really like the rfl. i would love to hook up the rfl on my car. if i got the emanage and the rfl would that void warrenty. see i want to do things to the car that wont void warrenty and wont take away frm the cars life to dramaticaly(specificly the engine). i plan on modding the car and stuff but as i said i have to go the safe route. if i go the safe route then i should be fine hopefully. if something goes wrong then i will have to pay, but wih the safe route that shouldnt happen or at least not frequently. and jred321 what are some of the monituring systems i can buy to aid n the safe tunning modifications.

 

[Ryan]

there is no safe route trust me you do anything to the engine... its psht bye bye.. on the warranty.. ur better off modding the exterior... seriously.. i dont advise u doing anyting to the car considering u cant even make the payments on it.. yanno. its not your car.. i'd consulte ur mom b4 adding anyting cuz its more her car than it is yours.

 

[jred321]

emanage will def. void your warranty, as will anything to make real power out of the engine.

i would suggest a wideband and something like this http://pocketlogger.com/?page=prod&prod=obd2 to monitor as you push limits so if something fails you can see what it was and you'll know how to correct it, or you can hopefully see it just before it does fail so you can save yourself some money and not break it

from a few posts up. boost gauge is necessary, oil temp/pressure, water temp/pressure would also be nice to know as well. and please read corky's book before doing anything that may blow up your car