metal lines on top of rb25det?

[leesredgt]

can i just plug these off or leave them open or can i hook them up to the charcoal canister in the front of my s13 were i hooked back up my gas fume line so my car wouldnt smell like gas.

[Darius]

If I had to do it all over again, I would have saved my charcoal canister. My car smells like gas. I'd just plug those lines into the S13 charcoal canister.

[leesredgt]

if u dont mind me asking what are those lines for.so it wont hurt if i plug them into the canister with my gas fume release line?

[blurrbosi]

If you follow them back they are just dedicated pressure sources brought across the motor( ie: for WG, boost gauge, boost controller... whatever you want to put.... Apparently you are not keeping stock turbo?

[leesredgt]

im keepin the stock turbo for know its just these lines are open and i didnt want to hurt the engine so i can put them into the canister and it wont hurt nothin right?

[corey_m_brock(BANNED)]

when i did my swap i just capped them both off. when i did that boost would keep rising as i gave it gas. it went up to 25 lbs the first time i really got on it, and i knew something was wrong. i solved my problem by SEARCHING.

the top line (which is bigger) needs to tie back in to the boost cylinoid and the other smaller line on bottom can go to the canister.

[leesredgt]

were do i need to tie it back at into the boost soleinoid do u have any pics?ive searched.

[Adrian gt]

when i did my swap i just capped them both off. when i did that boost would keep rising as i gave it gas. it went up to 25 lbs the first time i really got on it, and i knew something was wrong. i solved my problem by SEARCHING.

the top line (which is bigger) needs to tie back in to the boost cylinoid and the other smaller line on bottom can go to the canister.

both of them go into the charcoal canister. the big one goes onto the bottom of the diaphragm on top of the canister the little one on top, i think it's so the canister is not opened up under WOT

[BoostFab]

both of them go into the charcoal canister. the big one goes onto the bottom of the diaphragm on top of the canister the little one on top, i think it's so the canister is not opened up under WOT

no.

one go to the canister, and the other go to the wastegate.


Modified by BoostsFed at 11:21 PM 10/17/2007

[Adrian gt]

NO!one go to the canister, and the other go to the wastegate.

in short, both are vacuum source.

the waste gate vacuum line gets attached to the stock intake pipe, there's a nipple sticking out under it, they tend to get stuck on and i even had to break rip the hose to get them separated

[corey_m_brock(BANNED)]

i really dont remember were the top line went to on the cylinoid, since mine has been flipped all around. but, if you can post a pic of your cylinoid as it sits now i should be able to tell ya.

i tried routing both of the lines to the charcoal canister with no luck. just to let adrian gt know.

[Joe]

NO!one go to the canister, and the other go to the wastegate.

in short, both are vacuum source.

no

both go to the canister

the WG doesnt get a vacuum source from there. its from the hop pipe just off the turbo.

[Adrian gt]

no

both go to the canister

the WG doesnt get a vacuum source from there. its from the hop pipe just off the turbo.

always good to have a mod's backing

[BoostFab]

lol, ok yo're right. excuse my bad memory.

[Joe]

thats why im here

that and to keep all you little ****ers in line. hehe

[leesredgt]

so i should just run them both into the canister were i got my exhaust fumes from the gas tank going.does it matter were i put the b/c well of course them stock engine didnt have a turbo so the labels on the canister arent gonna match.?

[Joe]

plug them

i never ran em, never had a problem.

[corey_m_brock(BANNED)]

i know i tried hooking mine up the way you guys are saying and like i said my boost would just keep rising and i would have eventually blown the thing up.

scott at tophat is the one who told me to route the top line to the boost cylinoid and it solved my problem and has been like that ever since with no problem. he said this is the setup he has done on all the rb swaps they have done at tophat. he told me to chunk the canister.

[bmadd2402]

you are correct. you can use them for a boost source. but it is ill advised to use it for the Wastegate reference, due to the possible pressure drop across the intake system. use the ones you want for things such as boost gauge, BOV, FPR, etc. plug the open ones, and chuck the canister. that "fuel exhaust" line has a soft hose between the two hardpipes just by the firewall on the passenger side. you can disconnect it there and cap the line, and get a vented gas cap. no gas smell, and a clean engine bay.

[BoostFab]

plug them

i never ran em, never had a problem.

if you plug them; plug at the intake manifold nipple. those metal lines are fugly

[Joe]

if aesthetics bother you, yes plug at manifold.

but there is no difference where you plug them haha

[BoostFab]

if aesthetics bother you, yes plug at manifold. but there is no difference where you plug them haha

smart a55 lol actually it's stinks if if plug it in the rear.

[leesredgt]

ok since were on the hoses subject id figure id go ahead and ask these questions too.were do these lines go,i know they dont go to the maf or anything these are the only lines that i cant figure out.



and heres a side shot of the same hoses.

[Adrian gt]

into the second cold pipe before the throttlebody

[Chaos the Xile]

If I had to do it all over again, I would have saved my charcoal canister. My car smells like gas. I'd just plug those lines into the S13 charcoal canister.

no kidding, i smell like i just came from the track no matter where i go with my caR!

[Cameron]

so let me get this straight, i had this same question, and i dont wanna run the metal lines cause the look like crap, but i dont want my boost to spike like that either... so to not run the lines and to not have the boost spike what should i do? should i run a vacuum line from the boost solenoid to the intake manifold nipple where the metal lines originally hook up or what.. but that also conflicts with something else i thought... i thought that the vacuum lines on the boost solenoid connect to the intercooler piping... so back to the main question.. capping those nipples at the intake manifold will make my boost spike to 25 +- psi for what reason......? or did i totally just misunderstand, cause it has nothing to do with the solenoid connecting to the intercooler, where it should... and what is the main purpose for running those lines to the charcoal canister? i never really cared about knowing..... thank you....

[bmadd2402]

the boost spike is because someone didn't give the wastegate a good reference. there are three essential things needing vacuum: Wastegate, FPR, BOV, and power brake booster. the brake booster is the 12mm line on the back of the intake manifold (if the timing belt cover is the front). the FPR is on the front, and is smaller than the others. the BOV is the first one to the right of the throttle body if you are looking directly at the TB. it is not recommended, but you can use the intake mani for the WG, or use the intercooler piping, or a quick tap. just as long as the amount of boost in the system is getting to the WG so it will open at the appropriate pressure. the boost solenoid is optional. if you don't run it, you will have 5.5 psi instead of 7. if you do choose to use it, you should run a line from one of the aforementioned places for the wastegate to the solenoid, then from the solenoid to the wastegate. all it is is an rpm activated boost controller. hope that clears things up for ya.

the canister is for emissions, and unless your canister is kinda new, it prolly aint doin nuttin newayz. Ya heard?

[leesredgt]

okay i have a apexi avc-r im wanting to put in already have it wired and everything so all i do is run that front line off the wasgate into the apexi boost cylinoid and run one line from the other side of the cylinoid and cut a spot in the metal line coming from the wastegate and put it there right?

[bmadd2402]

just run a line from the intake manifold to the solenoid, then from the solenoid to the wastegate.