Problems with boost

[gaehrings13]

Well I haven't been able to drive my car becuase the damn boost goes too high, I have triend many things but nothing will work. First I thought it was the wastegate spring (I have a tial STYLE wastegate) I took it out and it was the larger diameter ones with the color blue on it. I checked but I think that was a 8.75 lb spring i wasn't too sure. My friend gave me a smaller diameter one wich is a 5.75 lb spring (I want to run 8lbs on my setup).

After I installed the spring I went to test it out and it won't stay constantly on 6lbs at all NOT EVEN CLOSE it just wants to boost so fast and so high but I let off. So I checked the vac signal. Seems okay. I am getting the signal from the front housing on the turbo (I always ran my integra like this without a problem) so i decided to try the signa from my bov wich I know is working well, samething except with turbo flutter lol....

Im sorry this is getting so long lol, but the first engine I had was ruined by a weld booger, and that engine was in great shape... Then I was given a free motor that supposebly worked perfect, well it didn't it had a blown headgasket . I fixed it, and had it running real nice... Well i thought i had a 10 lb spring, so I had the timing backed up put in colder plugs and we were gonna try to tune the car....... It overboosted to like 15lbs and blew the headgasket ....... So I said well I'll just go ahead and put new rings and new bearings and rebuild it even better.... but like a dummy i didn't get the head shaved and I broke the headgasket from nothing or I really messed something up bad, I'm not sure what happened. Soooooooooooooo I got the head shaved but the machinist shaved the head took my money and said HEY THE HEAD IS NO GOOD.... and said that I would be back. He showed me how the water port were all messed up, but since i needed the car so bad I just put it back together..... lol pffffffft it got ****ed up again......

Im sure now you guys are thinking im an idiot and all that other stuff but I always end up doing things myself, the people I always help on their cars are never around, and some of these guys know a lot...... So I say **** it and I just do everything myself. I told the guy who gave me the wastegate spring to help me but he never seems to have time lol.

I don't mind working myself but damnit I want to only run 8lbs is that too much to ask. Okay guys sorrry about the long story again, I just wanted to give you guys an idea of what im going through here...

Here are some of the other problems that I can't solve either....1.When I connect the idle tube to my intake, it starts to fluctuate the idle.2. I unplug it and cap it off it idles a little more better but around 1500 to 2000 rpm.3. I changed the iacv valve but the samething happens, I still haven't changed the air regulator.4. I unplugged the tps nothing happens, shouldn't it do something atleast....5. I can't set a base timing because of the retarded idle...6. The boosting problemLol well thats it for now...

I have already installed another engine with GREAT! compression from a 93 240sx with 75,000 miles and it sounds real nice... I installed the s14 intake mani on it.

If you need to know some of my setup here it is.Safc2colder plugs the bkr 711's im not sure if i got that right480cc injectors255 walboro fuel pumpFPRSsac manifoldmaster power turbo something like a 60-1 but a little largerTial style wastegate (everything is nice and tight inside)Itercooler piping done by medownpipe done by meturbo xs copy bovsome generic front mount intercoolerairfuel boost and temp gaugeSafc settingmaf is set to 1 to 5-50 on low settingand like -45 on the highI haven't really tuned the car so I don't step on it, because I want to get the wideband first, Im just no spending nothing till I get this boost problem fixed.

I know this is good enough for 8lbs...

Well thanks a bunch if anyone can help.......... OH YEAH SORRY FOR THE LONG POST

[NateDogg]

Buddy...after all the time and effort you put into your car and you still using a knock off part...the one that controls whether or not you spend another weekend and however much money putting in a new motor...I just dont get it.

Its called Tial 'style' for a reason..GET A REAL WASTEGATE!

As for your other problems..

Have you made a boost leak tester and found any leaks? Sounds like any additional air that the IACV is supplying when you connect it is making the engine run lean.

Do you have a widebande to see the afr's at idle and when this condition occurs?

[gaehrings13]

Well im sorry for using knock off part but I checked the diaphram and made sure everything is nice and tight, so it should be okay....... Sorry i didn't ger a real wastegate but I haven't been making any good money lately. I used to run a deltagate before and it worked pretty good on my integra yrs ago.... I knew posting would lead me to spending more money to make boost leak tester and get another wastegate... lol im so dumb... So the overboosting can be cause by leaky vacuum, maybe why I have ****ty idle....... I will look up the vacuum tester thing again. I have seen a lot of people run the wastegate for a long time with no problems at all... im pretty positive thats okay hmmmm..... what about idliing do you think the air regulator might be bad.... oh and for air fuel i only have the ghey autometer airfuel gauge and as soon as i press the gass a little it goes too green. Lol but I know that the autometer gauge is not not good trust me, I just want to see the car hold the 6lbs steady from the spring.... THANK YOU!

IM GONNA DO THIS TOMMOROW zerothread?id=113785

but keep throwing out ideas, thanks again.

[Craving4Boost]

my experience with Tial STYLE Waste: I put in a 8.75psi spring and it creeped to 25psi! it bent the hell out of my #3 rod. I coughed up 200+$ for a brand new Tial wastegate and let me tell you, when it says 8.75psi...IT REALLY IS 8.75psi. I bought that wastegate for 50$ and the only thing I got was a 1 second ride at 25psi. Could've been longer if I had more fuel though

[gaehrings13]

Well I'll do the boost leak test, I think i can get my hands on a deltagate for like 50 bucks and get it first without paying lol. Do you know if the small diameter tial spring will work in the deltagate becuase I know the deltagate my friend is selling is for like 14lbs or something. THANKS! lol it prolly is the wastegate!

Yeah 20+ lbs of boost is great, I was working on a friend of mines car. A 96 240sx with a 1jz in it boosting 26lbs... man that thing would smoke the tires 1,2,3 would burn out like nothing so uncontrollable. He says when he put on some advan version 2 and some yokahama advan ao48 tires he got it to grip... I dunno I haven't driven it since i gave it back.. He took it to some shop and theyve been "fixing it" for a while lol.

[C-Kwik]

You can attach a regulated pressurized hose to the wastegate signal port and see if the wastegate is opening at the set boost pressure or not. If you're planning to test for boost leaks you probably have just about everything you would need to test the wastegate.

Deltagates are a wate of money. They do what they are supposed to for a while, but I've heard plenty of stories of them failing after some use. I've experienced this first hand as well. I'd opt for a name brand WG. I used a Tial and have no complaints.

[gaehrings13]

I have my friends compressor at my house, so im going to try something with that.... I also know about the problem with the deltagate for some reason they like to loosen the 4 bolts that hold the hat on. I always had to tighten like once a month even loctite wouldn't work. I will also try to pressurerize the wastegate by itself........

[Florida240sx]

Your safc settings are way off.What is your MAFS? Stock should be the same number. Low should be -43ish%High you should start at -25%Where are you sourcing your vaccum from?

Use the FPR line cut it and branch off to boost gauge wastegate and bov then fpr...

[gaehrings13]

Ill set it to those florida, I have the stock maf in their, i really don't remember what i had it set at before when i had a z32 maf because i use to have one then i removed it....... I will also try the wastegate signal from the fpr. Thanks a lot !

[DammitBobby]

That blue spring larger diameter is 15 psi spring. I am using the port off of the turbo compressor side and it works fine for me. You need to make sure that port is not clogged. I would use a compressor to test the wastegate to see when it starts to open. The other possible problem is that you don`t have the crush washer installed correctly. If you install it backwards it will never work correctly.

[gaehrings13]

are you talking about the washer that is between the wastegate inlet and the turbo manifold. Why do i need that my deltagate never used that, by the way it is in there. I have it in correctly it goes in the wastegate with the smaller diameter side into the inlet of the wastegate..........right?

[DammitBobby]

The picture shows Tial style correctly installed fiery ring. The fiery ring side goes to the manifold the other side can be vented to atmosphere or redirected to the exhaust pipe. If the fiery ring gets locked up or seized then it will never open to regulate boost.

[gaehrings13]

I have it in like that, I can hear the wastegate open but it just doesn't hold the boost steady it just goes way high...... Is that a sign of a bad wastegate.

The diaphragm looked fine it had no tears and it wasn't broken, and also i did put in a smaller spring. Thanks a lot bobby for you help, I will probably be working on the car tommorow so I will check a few things out.

I did the settings on the safc like florida240sx and the car seems to run a lot better, especially lol how I had the maf setting wrong on the safc I knew I had something screwy becuase I had the z32 maf and I took it off becuause I thought it was bad and it wasn't. Lol imma dummy.

[Florida240sx]

Glad I could help some. If only I could figure out my damn car..

[DammitBobby]

Do you have the signal connected on the side or bottom of the wastegate?

[gaehrings13]

lol i have it on the side, I had it on the top a long time ago like a dumbass, ummmmm the side is right..... right... That how my friend has his on his integra.. Dont worry florida you'll get your car running.

[DammitBobby]

Yes that is correct way to connect it. Just wanted to make sure you had it connected correctly before we did anything else.

[gaehrings13]

Okay, well im going out in a little to try some stuff. Do you think it would be a good idea to get a new temp. sensor...... Will that maybe fix my idle problems, i have a feeling i will change the air regulator and the idle will still be crappy lol.

[WDRacing]

1 gallon of gasoline and a road flare...should do the trick for ya...lol.

[S13FX]

Make sure you insert the road flare through the sun roof

[gaehrings13]

Lol, trust me guys that has crossed my mind a few times lol. Damnit I couldn't do anything today becuase it is windy, cold, and drizzling all day. Lol a little bit of cold is to cold for me .