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View Full Version : HELP! nissan needs powa!


slick_s13
09-02-2009, 08:50 PM
i have....
a stock ecu,
stock injectors (waiting on some 370's in the mail),
only shooting for 5psi,
38mm external wastgate, (7psi)
t3/t04e Hybrid turbo,
APEXI SAFCII,
Walbro 255 fuel pump,
3" downpipe,
3" CAT-less exhaust,
my timing is retarted about 2.5 degrees,
Really big intercooler lol,
and a greddy type s BOV. non recirc
innovate wideband.

at around 3psi the car wont make any more boost. it's sputtering pretty bad, and the RPMs wont increase. it seems like an ignition problem,,,however i put in some bkr7e plugs by NGK gapped at .030 ...new wires aswell.

my Vac reading is good
my wideband reads rich at all times boost or not. (unless im off throttle while cruising and at like almost 28inhg of vac, then its all the way lean).

i mean ive narrowed it down to either
boost leak
spark plug blowout
fuel cut
or premature opening BOV

i undertsand that all of these would keep me from making the 7psi, but the car wont increase in revs and i dont see how it could be the ignition...could i be hitting the fuel cut around this psi with stock injectors and this size turbo? and would it give me these symptoms?

A31CEFIRO
09-02-2009, 09:19 PM
sounds like the wastegate isn't set right. But im not sure why it won't rev any higher.

Ghost240
09-02-2009, 09:35 PM
i have....
a stock ecu,
stock injectors (waiting on some 370's in the mail),
only shooting for 5psi,
38mm external wastgate, (7psi)
t3/t04e Hybrid turbo,
APEXI SAFCII,
Walbro 255 fuel pump,
3" downpipe,
3" CAT-less exhaust,
my timing is retarted about 2.5 degrees,
Really big intercooler lol,
and a greddy type s BOV. non recirc
innovate wideband.

at around 3psi the car wont make any more boost. it's sputtering pretty bad, and the RPMs wont increase. it seems like an ignition problem,,,however i put in some bkr7e plugs by NGK gapped at .030 ...new wires aswell.

my Vac reading is good
my wideband reads rich at all times boost or not. (unless im off throttle while cruising and at like almost 28inhg of vac, then its all the way lean).

i mean ive narrowed it down to either
boost leak
spark plug blowout
fuel cut
or premature opening BOV

i undertsand that all of these would keep me from making the 7psi, but the car wont increase in revs and i dont see how it could be the ignition...could i be hitting the fuel cut around this psi with stock injectors and this size turbo? and would it give me these symptoms?

:eek2:You really can't be this retarded....
get a fucking tune, and the right shit to support your god damn mods.

slick_s13
09-02-2009, 09:46 PM
ok right off the bat...just because you have a shitty life and feel the need to go on a forum to blow off some steam to some one over the internet...( a bitch move BTW) doesnt mean you know what the hell your talking about. and as for my isssue. if you cant say anything to help. than just shut the hell up.

i mean you talk like you know what your talking about...but im not seeing an intelligent solution....jackass.

if everyone went by your logic than everyone would just dish out cash to strangers to solve their problems. im trying to troubleshoot the issue. and there is not a damn thing wrong with going to a forum to do that. so you can kiss my ass.

BoostSlideWayz
09-02-2009, 09:46 PM
thats wierd... do you have a boost controller ? or is it just straight to the waste gate ?? and you needa take that spring out of the BOV !!! your just gonna be makin so much surge.. those springs in the BOV are for like.. 15+ PSI.. so take 1 out but leave the one with weaker resistance in... i just got a manual boost controller for mine.. i got it to reach 8 PSI on stock EVERYTHING.. then i messed it up when i used low impediance injectors.. took along time to rev but when it did it hit like 15 PSI and then.... well now im rebuilding it..

slick_s13
09-02-2009, 09:50 PM
i dont have a boost controller. just the wastgatei took out the small spring, and left the bigger one in. and wow....8psi on all stock is VERY impressive. did you get a boost spike? or did the injectors just not put enough fuel for the pressure?

BoostSlideWayz
09-02-2009, 10:17 PM
i dont have a boost controller. just the wastgatei took out the small spring, and left the bigger one in. and wow....8psi on all stock is VERY impressive. did you get a boost spike? or did the injectors just not put enough fuel for the pressure?

nah the injectors couldnt keep up.. but now that im rebuilding it ill be getting top of the line stuff so everything runs properly.. i have an ECU sitting in the back my S13 that supposidly is chipped. it has a sticker of the company that did it.. but it was wierd.. i sent my ECU in.. and they sent me a stock ECU back.. and then i told them. and then they sent my chipped ecu back.. i compared the 2 and found some other things that were diff but the car didnt seem to run any diff. if you want the ecu we could probly settle a cheap price .

Ghost240
09-03-2009, 09:30 AM
ok right off the bat...just because you have a shitty life and feel the need to go on a forum to blow off some steam to some one over the internet...( a bitch move BTW) doesnt mean you know what the hell your talking about. and as for my isssue. if you cant say anything to help. than just shut the hell up.

i mean you talk like you know what your talking about...but im not seeing an intelligent solution....jackass.

if everyone went by your logic than everyone would just dish out cash to strangers to solve their problems. im trying to troubleshoot the issue. and there is not a damn thing wrong with going to a forum to do that. so you can kiss my ass.


Haha my life is quite fine thank you for your concern. but I made that post simply because you can't buy mods and expect your ecu to compensate for them. You have a T3/T04e turbo flowing alot more air than the KA is used to, therefore you need more fuel (injectors) and your A/Fs are all over the place (aka get a fucking tune). A SAFC won't fix any of that and if it does you're lucky and it wont last long. AKA "Get the right shit to support your god damn mods"

If you actually used the search button and said hey let me look around a little bit at the KA-T guys maybe I could figure this out. And your car is not letting you rev higher because it's trying to prevent itself from destroying itself. Do it right or end up rebuilding it. (aka :eek2:You really can't be this retarded...."

P.S- I do majority of the work on my car. I only take it shops when its out of my league and that is RARELY.

Sincerely, jackass

slick_s13
09-03-2009, 10:18 AM
lol wow really?!
its funny that you say that because it turns out it was boost leak from a lower injector seal....looks like you really ARE the jack ass lmao
and just so you know...if there was too much air for the engine and not enough fuel...it wouldnt be running rich....and to think...you actually try to give people advice?!
...tisk tisk.....
not to mention is a sohc...soooooo it doesnt have a knock sensor...and because the airflow reads 53% than i would lovvvve to know how exactly it would detect there is not enough fuel for the air...
oh and especially with the wideband hooked up in place of the narrow band...the comuter has no refference....PLUS i did go to ka-t.org....and plenty use the SAFCII with much success. at any rate. i actually feel sorry for you....and your car....lol
and one last thing....you choose to read this thread by your own free will. if youdont like what you see. than STOP LOOKING. and keep your lousy and uneducated comments to YOURSELF.

BoostSlideWayz
09-03-2009, 10:23 AM
Haha my life is quite fine thank you for your concern. but I made that post simply because you can't buy mods and expect your ecu to compensate for them. You have a T3/T04e turbo flowing alot more air than the KA is used to, therefore you need more fuel (injectors) and your A/Fs are all over the place (aka get a fucking tune). A SAFC won't fix any of that and if it does you're lucky and it wont last long. AKA "Get the right shit to support your god damn mods"

If you actually used the search button and said hey let me look around a little bit at the KA-T guys maybe I could figure this out. And your car is not letting you rev higher because it's trying to prevent itself from destroying itself. Do it right or end up rebuilding it. (aka :eek2:You really can't be this retarded...."

P.S- I do majority of the work on my car. I only take it shops when its out of my league and that is RARELY.

Sincerely, jackass


Thats a good point.. im not trying to start an arguement.. but CX racing even says its just bolt on mod you need nothing else they say.. I personally went to there building when i picked up the turbo kit for mine. and asked them if i can look at there car.. and i looked at it.. and it literally ONLY had the turbo kit.. it didnt even have a boost guage... that was kinda wierd to me tho.. but yeah i looked at the interior and everything was as is.. but i listened to em and now look at me -__- im rebuilding it. lol so.. yeah i would blame CX racing if anything bad happens.

slick_s13
09-03-2009, 11:21 AM
While that may be true, I have a fuel pump boost gauge injectors on the way reduced timing the right plugs at the right gap and a proven meathod of tuning...a side from the fact that the problem is not diagnostic....its purely mechanical. Unlike you I did a lot of research befor taking their word for it. So my car CAN handle it. Its merely a leaky seal. That's about to get replaced anyway. Car runs great. Just dowsnt hit full boost because of the boost leak. That's it.

BoostSlideWayz
09-03-2009, 11:44 AM
While that may be true, I have a fuel pump boost gauge injectors on the way reduced timing the right plugs at the right gap and a proven meathod of tuning...a side from the fact that the problem is not diagnostic....its purely mechanical. Unlike you I did a lot of research befor taking their word for it. So my car CAN handle it. Its merely a leaky seal. That's about to get replaced anyway. Car runs great. Just dowsnt hit full boost because of the boost leak. That's it.


Thats good. i almost forgot about that, i got the fuel pump and that was like it. But i mean.. i just baught the car for 800 bucks.. and i didnt know its past life.. so yeah i dont even know how many miles were on it.. when i got the kit i did buy a cheapo boost guage at the auto store.. but i couldnt afford the SAFC at the time or the wideband.. i wish i could.. but right now im just spending my money on the internals.

slick_s13
09-03-2009, 11:48 AM
Yea man, you can't skimp on the tuning stuff. That's how I knew that eventhough it wasn't hitting boost, it was still ok. Because I could see with the wideband that it wasn't running lean. But infact rich. Meaning that all the air was escaping after being read by the maf. Symptoms of a boost leak. What got me was I didn't think that it would be at the injector seal.

slick_s13
09-03-2009, 11:53 AM
Thats good. i almost forgot about that, i got the fuel pump and that was like it. But i mean.. i just baught the car for 800 bucks.. and i didnt know its past life.. so yeah i dont even know how many miles were on it.. when i got the kit i did buy a cheapo boost guage at the auto store.. but i couldnt afford the SAFC at the time or the wideband.. i wish i could.. but right now im just spending my money on the internals.

Oh and did you do anything like change timing or get colder plugs or regap them? Cause if not than your motor probably died from detonation. Too far reaching spark on a hot ass plug, too much timing and boost = not a good combo. This also proves that if the motor were going to blow from not having it set up right it would do nothing to stop its self. Lol however that's not the case with me. Cause if it were the tune. It would've blown up a long time ago...but it didn't...

EDT007
09-03-2009, 01:52 PM
Settle down guys, this isn't an internet fighting ring. As for the original issue. I'm KA-T on a Garrett T3/T4OE hybrid. I'm not running any sort of electronic management. I'm running a Vortech FMU, pushing ~7psi on 370cc injectors in my 97'. The spark-plug gap sounds fine to me at .030. I would set the SAFC back to stock settings (zero everything out) and go from there. The fact that your car isn't revving up past 3psi concerns me. On my old DSM fuel cut would do the same so it is possible. Wait till the 370's come and drop those in and see what happens.

clark
09-03-2009, 02:09 PM
hey, good job finding the boost leak.

how did you find it by the way??

man that's the last place i would've checked for a boost leak.

slick_s13
09-03-2009, 03:07 PM
Settle down guys, this isn't an internet fighting ring. As for the original issue. I'm KA-T on a Garrett T3/T4OE hybrid. I'm not running any sort of electronic management. I'm running a Vortech FMU, pushing ~7psi on 370cc injectors in my 97'. The spark-plug gap sounds fine to me at .030. I would set the SAFC back to stock settings (zero everything out) and go from there. The fact that your car isn't revving up past 3psi concerns me. On my old DSM fuel cut would do the same so it is possible. Wait till the 370's come and drop those in and see what happens.

lol...yea, valid point sorry about that...
and cool, will do, thanks for the feedback btw.
and yea, i set the SAFC at stock because i really didnt want to mess anything up lol hopefully that'll be it

slick_s13
09-03-2009, 04:53 PM
hey, good job finding the boost leak.

how did you find it by the way??

man that's the last place i would've checked for a boost leak.


thanks :bow: since it seemed like it was hiiting fuel cut i after i ran it and hit a little boost i pulled over really quick after and looked at the injectors...all of them were good except for the one in the very backwhich had a little gas on it! :bite: so i tried moving it and it moved pretty easily in the seat...and then i heard it release a little pressure from the bottom seal when i wiggle it lightly...and then i knew big time lol after a little reserch i found that it's happened before....i just dont think it's all that caommon.

kuelee
09-03-2009, 05:30 PM
:eek2:You really can't be this retarded....
get a fucking tune, and the right shit to support your god damn mods.

i really hate ppl like ghost..who think they know it all..ppl like this idiot isnt helping much...

slick_s13
09-03-2009, 08:43 PM
i really hate ppl like ghost..who think they know it all..ppl like this idiot isnt helping much...


:werd: but atleast the mystery has been solved! :D lol