presure2

#121

do you have the a/c idle up valve hooked up and working properly? that allows the idle to raise ~ 150 or so RPM to compensate for the extra load on the engine caused by the a/c compressor at idle.

---

Former Team 5SFTE pro member ;)13.6@108MPH, 5SFTE Powered

celiracer

#122

ya i bought a new one. and i'm believing i got a boost leak. or my waist gate isn't working properly. when i'm in first and go to about 5 pounds it's all fine hit second and give it half throttle. and it jumps to fifteen pounds but i'm not going anywhere. lol. so i'm guessing it's a boost leak. or something is going on lol. any ideas?

And also have adjusted idle to just below 1k rpms. But it still jumps down to 400 when cold. When it's warmed up it'll stay one below 1k but bounces down and back up. So my guess is iac or tps is off or not working properly.. Hopefully figure out more.. Been praying it's not my waist gate sticking..

This post has been edited by celiracer: Jul 31, 2011 - 8:59 AM

celiracer

#123

Well been driving it a little more today. and last night. Been staying at low boost cause once i hit around 9lbs you hear a woosh woosh woosh sound. it'll hit 15lbs making that noise. and in like 2nd and 3rd doing that it just feels like it's falling on its face. and everyonce in a while it'll jerk like it kicked in and then comes right back out.. So confused lol.. Friend told me he thought maybe it makes that sound cause its a internal waist gate and i'm running open down pipe.. Anybody have this problem? let me know thanks

presure2

#124

How exactly are you adjusting idle?

---

Former Team 5SFTE pro member ;)13.6@108MPH, 5SFTE Powered

celiracer

#125

there is a little nut with a allen screw under the throttle cable off the intake. is that not right?

presure2

#126

you should never have to mess with the idle like that.

---

Former Team 5SFTE pro member ;)13.6@108MPH, 5SFTE Powered

celiracer

#127

Well while we were trying to diagnose the problems before we found out i had wrong map sensor. we wanted to check timing and everything so needed to get the car to idle. When i got map sensor it was idling at 2k so we had to adjust it again. The idle isn't really my biggest concern as i can still drive the car.. My biggest concern is the boost problem after 8lbs. where i hear the wooshing noise and loss of power.. bov still goes off after. and i've tightened all of my couplers. just don't know what to try next to get rid of it.. lol

str8thugginit4ya

#128

>

QUOTE (celiracer @ Aug 1, 2011 - 9:06 AM)

>Well while we were trying to diagnose the problems before we found out i had wrong map sensor. we wanted to check timing and everything so needed to get the car to idle. When i got map sensor it was idling at 2k so we had to adjust it again. The idle isn't really my biggest concern as i can still drive the car.. My biggest concern is the boost problem after 8lbs. where i hear the wooshing noise and loss of power.. bov still goes off after. and i've tightened all of my couplers. just don't know what to try next to get rid of it.. lol

Check all of your hoses running to the turbo, BOV, and anything to do with the boosts pressure. Cause if in fact you are spiking boost, then it could be a leak. Good luck with it.



-Ryan

celiracer

#129

well the boost isn't spiking. when wot it stops at fifteen lbs. it's just when it passes 9 and goes to fifteen and it starts wooshing and when i let off the bov still goes off. i've checked all vacuum lines and haven't figured it out yet. lol. still fun to drive.

Culpable04

#130

I'm wondering if the noise you are hearing is the normal noise the turbo would make when sucking air at high speed. especially when not using the stock airbox.

This post has been edited by Culpable04: Aug 1, 2011 - 12:58 PM

celiracer

#131

Yea i was wondering that too.. But i can feel loss of power every once in a while when it does this. sadly to say it really sounds like this..

http://www.youtube.com/watch?v=nCj6Spwl1CU

50 seconds in. I'm really really hoping that its not compressor surge tho..

presure2

#132

If your running the stock turbo, its not surge. What are you using for a bov?
What kinda gas you running?

---

Former Team 5SFTE pro member ;)13.6@108MPH, 5SFTE Powered

celiracer

#133

I am using a greddy type rz and i'm running 91 premium. I figured it couldn't be with running stock turbo.. but it does sound like that after 8 or 9 lbs. but even in boost just doesn't feel right. I keep thinking maybe boost leak. but i've tightened every coupler. but if it is wouldn't know where lol.

Culpable04

#134

boost can leak from a few small hoses as well, not just couplers, I had a boost leak that was causing boost spikes right at the actuator, basically the hose cracked and when not under pressure it would look fine, but under pressure it would leak. since you dont have the water to air, the easiest way for you to find a boost leak is making a boost leak tester

Click here !

I made mine for less than 12 dollars and even though I have a water to air with less piping, it made finding my leak very easy.

celiracer

#135

Well i guess i'll have to try that.. and i'll have to check my hoses by the actuator. and all my small vacuum lines. hopefully figure something out lol..

I'm really hoping that, that's all my problem is, is a boost leak somewhere..

This post has been edited by celiracer: Aug 2, 2011 - 12:20 PM

celiracer

#136

so hooked up a leak tester. found couple spots that were leaking.. also while it was hooked up air was coming out of the filter that i put on the iac. could that be the flutter i'm getting at hi boost? after tightening the couplers i noticed a way better difference. but still seeming a lil sluggish. lol.

brenton1919

#137

>

QUOTE (celiracer @ Aug 1, 2011 - 1:24 PM)

>Yea i was wondering that too.. But i can feel loss of power every once in a while when it does this. sadly to say it really sounds like this..

http://www.youtube.com/watch?v=nCj6Spwl1CU

50 seconds in. I'm really really hoping that its not compressor surge tho..

hey i know what it is your bov is letting off to early... are cars dont really like those type of bov's. change to tial type also make sure your boost itsn't to high if it is your car will act like it doesn't want to go when u get to 4th gear and maybe 3rd at highway speeds. so turn your boost down and get a new bov and see if that doesn't help you............................... are u running fmic set up or water to air.............. or................... air to air................... and it is compressor surge because that bov isn't doing what it should be my car did the same thing ontill i changed the bov. its not a big problem just a easy fix and u will be good

This post has been edited by brenton1919: Aug 4, 2011 - 7:33 AM

pitcelica

#138

When your engine is off, IAC is wide open. When you pressurized your system, air can escape from the IAC. During a boost-leak test, I usually block off the IAC port.

If you have a good idle and you know the IAC valve is working correctly, it shouldn't have an impact during boost as the IAC should be closed when TP isn't fully closed (TP is at 0%).

For future diagnosis, I would try to run off the wastegate spring only. Disable the TVSV and see if it's holding boost and if the whoosing sound is still there.

Good luck!

Sam

celiracer

#139

so your saying that my greddy bov isn't good enough for boost on our engine? we've adjusted it to hard but not all the way. and seemed to not do much. but my boost stays around fifteen.. but maybe that.s my problem is the bov. dam don't really wanna have to spend that much on another blow off valve lol.

celiracer

#140

and my bov still goes off when i let off gas. but hopefully i can find one to borrow. or maybe try going harder on my settings for it' cause don't wanna spend that much and not fix the problem lol. i'm running front mount ic. last night took it out. and it ran fine for a while then started doing it towards the end. I really hope i can fix it.. cause theres so much power that i'm missing out on lol.

celiracer

#141

>

QUOTE (brenton1919 @ Aug 4, 2011 - 7:28 AM)

>>

QUOTE (celiracer @ Aug 1, 2011 - 1:24 PM)

>Yea i was wondering that too.. But i can feel loss of power every once in a while when it does this. sadly to say it really sounds like this..

http://www.youtube.com/watch?v=nCj6Spwl1CU

50 seconds in. I'm really really hoping that its not compressor surge tho..

hey i know what it is your bov is letting off to early... are cars dont really like those type of bov's. change to tial type also make sure your boost itsn't to high if it is your car will act like it doesn't want to go when u get to 4th gear and maybe 3rd at highway speeds. so turn your boost down and get a new bov and see if that doesn't help you............................... are u running fmic set up or water to air.............. or................... air to air................... and it is compressor surge because that bov isn't doing what it should be my car did the same thing ontill i changed the bov. its not a big problem just a easy fix and u will be good

Also wouldn't me doing a boost leak test and putting 15 or 16lbs through the piping make the bov leak if it was that? Because when we hooked that up. the bov didn't open or leak any air?

brenton1919

#142

Well what it is.. is that that the bov spring is either to weak or to strong making it open to early or to late when u shift. That's why the tial type bov is better so a boost test really won't help u there. Because its different when u are driving

celiracer

#143

Well man. I'm really hoping that you are right.. That would totally make my day so much better.. A buddy of mine has a tial sitting in his room. I may have to borrow it and see if that fixes the problem.. Cause i've been going crazy trying and trying to figure it out. This engine is amazing. And love the feeling of it. But i just wish that i could have full boost and no hesitations.. Cause thats exactly what happens in every gear when its past 9lbs.

brenton1919

#144

>

QUOTE (celiracer @ Aug 4, 2011 - 5:39 PM)

>Well man. I'm really hoping that you are right.. That would totally make my day so much better.. A buddy of mine has a tial sitting in his room. I may have to borrow it and see if that fixes the problem.. Cause i've been going crazy trying and trying to figure it out. This engine is amazing. And love the feeling of it. But i just wish that i could have full boost and no hesitations.. Cause thats exactly what happens in every gear when its past 9lbs.

Yeah try that and run stock boost first. Set up the stock way. And see if it runs fine after that if so u fixed your problem and you were turning your boost up to high. Take note to u may have a bad boost controller. That's why I said set it up the stock way first with that tial bov.and let me know how it turns out

delusionz

#145

blitz bov is a good bov aslong as u adjust it right???

im more a fan of the hks ssqv type though, theres no adjustment it just works on vacuum, ...

---

Mike W1996 Toyota Celica ST205 GT-FOURGT2860RS turbine, TiAL mvr44, JE 86.5φ piston, Clutchmasters FX400, APEX P-FC269awhp / 273ft-lbs

brenton1919

#146

>

QUOTE (delusionz @ Aug 4, 2011 - 6:00 PM)

>blitz bov is a good bov aslong as u adjust it right???

im more a fan of the hks ssqv type though, theres no adjustment it just works on vacuum, ...

Yeah pole type bov's are good bov's.they cost a lot of money but to me worth it.I'm not a big fan of hks I don't like the way they sound and the fact u can't adjust them but that's just me. I feel those are made for cars that boost high psi boost levels but again that's just me and what I think

celiracer

#147

well bad news guys. changed bov with my buddy.s hks that pushes 2o easy. and nothing changed with it on my car. still does it.. so don't know what the deal is. only other thing could it be anything with the waist gate and the berk tech down pipe? and gotta still get exhaust done. but figured i.d wait till i get this figured out before i go to get that done.. but any more ideas? lol. thanks for your help for sure. i'm willing to try anything lol.

celiracer

#148

oh and brenton. i don't have a boost controller.. lol.

brenton1919

#149

>

QUOTE (celiracer @ Aug 4, 2011 - 11:05 PM)

>well bad news guys. changed bov with my buddy.s hks that pushes 2o easy. and nothing changed with it on my car. still does it.. so don't know what the deal is. only other thing could it be anything with the waist gate and the berk tech down pipe? and gotta still get exhaust done. but figured i.d wait till i get this figured out before i go to get that done.. but any more ideas? lol. thanks for your help for sure. i'm willing to try anything lol.

Run a pole type bov not hks..... and I think that ct26 turbo on the gen3 with that berk down will have to be fixed so that waste gate can open all the way.and if your exhaust isn't. Done u might not be getting enough back pressure which is making u lag also did u check your boost controller and make sure everything is good there. That's pretty much everything u can check outside. make sure u don't have intake leak if u have a fmic set make sure your intercooler doesn't have a hole in it. And check your pipe. If your running water to air make sure your pump is working right. And make sure u have a good hard vac going to your bov. If u are running a boost controller manny make sure its hooked up right.and your waste gate is plugged up right. U should only be using one line off the waste gate the other one should be plugged. And the big thing is make sure your vac lines are hooked up right

>

QUOTE (celiracer @ Aug 5, 2011 - 12:05 AM)

>oh and brenton. i don't have a boost controller.. lol.

I don't know about the ct26 turbo but my ct20b only boost 9 stock. If your boosting 15 stock without a boost controller something is wrong

This post has been edited by brenton1919: Aug 4, 2011 - 11:17 PM

Culpable04

#150

>

QUOTE (celiracer @ Aug 5, 2011 - 12:05 AM)

>oh and brenton. i don't have a boost controller.. lol.

there is your problem, you always hold some detail so people can't help you efficiently. if you are pushing 15 psi with no boost controller. then you have
1- a leak on your hoses to the actuator
2- missing a hose completely
3- a hose crimped / twisted with restricted flow.

inspect your hoses going to / coming from the actuator. look for diagrams on how they should be set up and compare to yours and see where the problem is. at best on a stock setup you'll be pushing around 13 PSI not 15-16