Boost still disappers, help!

[turbowrenchhead]

I have been dealing with this issue since last year. I get up to 12 to 14 pds of boost and the gauge drops and i loose power untill I let off and reapply the throttle. It will stay steady at half throttle or so then when I put the throttle the rest of the way down it instantly disappers. Last year I wired the wastegate puck shut and it didn't disapper so this told me that i must be sticking inside the hole in exhaust housing.
So last week I had an external wastegate put on. I have steady boost with no controler on it but it only runs 8 pds of boost. As soon as I put my grainger valve on it same thing. I tried my air regulator in place of it and same thing. Then I plugged the outlet off the compressor housing and ran the controler to the map sensor line and I also replace the small lines with 7/32's vacuum line. Same thing. I cranked down my BOV and no change. Right now I took off my BOV and put a plate in place of it. I did this last year with the BOV and had no change. Now I'm grasping for ideas as to what could possibly cause this strange problem.

 

[turbowrenchhead]

Finally figurered out the problem. I put a 3" piece of pipe about 8" long inside of my stock air intake about 12" away from the turbo. The intake when it got good and warm would get plyable enough to suffercate the turbo. It only took a year to figure it out. But I did it and no one else. I talke to Red Armstong, PT&E, John Craig. John from John's performance and I think there were a few others. Not one person was even close to what the problem was. So it works how it is suppose to work!

 

[broke1]

Bet youre as happy as pig eating **** I bet your car is the fastest hot air next to LT.

 

[Otto J]

Originally posted by broke1
Bet youre as happy as pig eating **** I bet your car is the fastest hot air next to LT.

If you read his sig, Youll see it has a FM intercooler, SO it would no longer be classified as a Hot Air car in my book.

 

[broke1]

If you look at the pics and all the PITA this guy went thru,its still a hot air.If we want to go the "but its got a FM" argument,then I say that LT didnt have a "real" hot air because of his turbo.

 

[Otto J]

Originally posted by broke1
If you look at the pics and all the PITA this guy went thru,its still a hot air.If we want to go the "but its got a FM" argument,then I say that LT didnt have a "real" hot air because of his turbo.

 

[turbowrenchhead]

Did you guys see the post about what all went wrong with the car? There is a seperate bi*ch post.
I would be happy but my bottom end has to be rebuilt again because I didn't get all the metal out left over from the bad cam lobe and the last bottom rebuild 50 miles ago. So I'm a bottom end rebuild away from a highly fast car that will take vipers and exoctics, tee hee.

 

[broke1]

And its a Hot Air 84 WH1.A car thats only a handful have ever got into the hi 11's.I respect,apparently Otto likes to hate though,dunno.

 

[turbowrenchhead]

Here is the bi*ch post that I had to find on T6P.com.

http://www.turbobuick.com/forums/showthread.php?s=&postid=931967#post931967

 

[Drac0nic]

Originally posted by turbowrenchhead
Finally figurered out the problem. I put a 3" piece of pipe about 8" long inside of my stock air intake about 12" away from the turbo. The intake when it got good and warm would get plyable enough to suffercate the turbo. It only took a year to figure it out.

That's frickin wild, I've actually seenf a similar case. We had a truck that was LPG powered come in for repairs, it would just die above about 2500 RPM. changed the propane fliters, the vacuum shutoff coupla other things. Turns out the hose between the vaporiser and the intake was sucking shut just like you said, wouldn't have guessed it in 100 years. Oh yeah, congrats on getting her sparked up. It's the small, stupid things that always get ya =)

Oh yeah, it's still a hot air because it took a heck of a lot more time and effort then an 86/87 to get to the level he's got it to. It may have a front mount, but it definitely wasn't easy or cheap.

 

[turbowrenchhead]

It deffinetly wasn't easy or cheap. If I had to do it again I would of got a 86-87. The motor is coming out again on friday because there was still debris left over that I couldn't get to. So I have to repeat the process I just did 2 weeks ago. This time the engine is getting stripped down to the bare long block and put in the pressure washer. I should of done this last time but I just didn't think of it and was overconfident that I could clean it good enough, but I was wrong and therefore I have learned from my mistake. But now I know that it will run like it is suppose to when I get it back together and I can't wait.
I took it out for a short run tonight. I had a little race with a crotch rocket and he only got about 1 car length in front of me. That made it all worth it and I even had my girlfriend as a witness, sweeeet!