Wastegate actuator

[Gearhead43]

there is always carbon buildup on the inside of the turbine housing outlet, that can make the turbine wheel come into contact with the turbine housing, seen this many times. I just use a light grinding stone to clean off the carbon, AND since our turbos have such an exhaust restriction issue when getting up there in boost, there is no problem with opening up the outlet of the turbine side a little from this cleaning, this helps allow a little more exhaust escape

I think the turbo shop specifically stated it was scored at the bearing?  :shock:  Not where the turbine could hit the housing?.. But I'm not one hundred percent sure of that. I will have to call Ken and ask him.. ... I'll mention what you said...

Last, surprised they did not complain to you about the cracks in the wastegate hole,

Muahahahahahah Yes they did.. I told them not to worry about it... :lol:

[sleeperred90tgp]

Your welcome Mike. Man you had to go through some calls to get it. I guess the franchise arangements with Garrett are strict. Well atleast you got it. Should have considered the one in the picture and saved 28. Oh well I'll ebay it.

Glad you got one.

Jud

Or spent another $47 and got that badass Forge unit.

By the time you get everything. threaded end and a bracket I would guess you would have over 200 US in it. Yes its  bitching looking.  8) But you stil need springs. :lol:

Jud

[Jeff M]

By the time you get everything. threaded end and a bracket I would guess you would have over 200 US in it. Yes its  bitching looking.  8) But you stil need springs. :lol:

Ummm, with the Forge unit, you can spec the spring you want up front, so I don't think you need an external boy, slick thing is you can pop it open to swap springs if needed but the guy I talked to was so good at these the first spring selected should be good for the boost you tell him you want to run, or at least there are only a few more to try/not custom hunting to find one that will work  8).  But like you, I like these challenges, puts you to the test and makes it more an adventure!! :P

Jeff M

[Jeff M]

I think the turbo shop specifically stated it was scored at the bearing?  :shock:  Not where the turbine would hit the housing?.. But I'm not one hundred percent sure of that. I will have to call Ken and ask him.. ... I'll mention what you said... :

Ohhh, ok, thats different!!..might have been some carbon in the oil at the turbo center section where mineral oil likes to leave chunks, sorry to here that, if this is the case then yea a new housing, poop, sorry about that, never would have known that after getting it off of eBay unless I took it all the way apart.

And glad you got them to pass on the cracked wastegate opening, though with a new housing that will be a thing of the past for a while :P .

Let me know the end results on the cost and time to get one!!

Jeff M

[Invasion1]

I had mine (turbo) done late last summer from Cheapturbo.com and if i recall it ran me just over $400 for the rebuild, HPC Turbine and Polished Compressor.

he mentioned the cracks on my W/G Port too and he said he has not seen one that wasn't with that perticular casting.....

[sleeperred90tgp]

13.88 :shock: !!!!  That is great news!!!  How long were you going to hold onto this great time slip :lol: !!  You don?t mention the air temp, since its Texass  :hick:  (just kidding) good chance it was a hot day or maybe not and a cool night, you ought to feel these turbos with 0 to 20 degree air, like a 100 shot if NOS :twisted: Jeff M

I was going to go again the next week but didn't. There is still some more left in it and I only improved .08.

According to the owner of the Pro Comp car that gave me a tour of there car and trailer. :)  I mean everything even pulled drawers open, showed me there Crew Chief Pro software and data collection and ther Altalabs weather station which said we were at 1300+'. The track is sealevel. Don't remember all the numbers but it was about 70* and the pressure is always 29 or 30. The humidity is usually the killer down here. Rarely have I seen it below 80%.

Speaking of nitrous. This car runs a 500HP shot single stage, add that to the 1400 HP motor and you get a ride at 6.80 @195MPH. That would have to be a thrill.

Jud

[4PASNU]

Wastegate actuator installed!  I received the actuator the other day and immediately put it in.  Install went smooth, I took Jud's idea and slotted the bolt holes to make it a bit easier.  Took it out for a run and, WOW, it's nice to have my car back!  :D  I almost forgot how fun this car is to drive.  Thanks again for the help everyone.

[z284pwr]

Instead of making a new thread may as well continue this one...

Anyways, since we have had one successful fix at this, I'll add a non-successful fix.  A little background, ever since we put the new engine in, the car has been unable to run very much boost WITH the wastegate actuator/boost control solenoid hose plug in.  We have: Installed new hoses for the setup, BRAND NEW boost control solenoid, BRAND NEW wastegate actuator, and still it won't booost properly with the hose on.  Any ideas on what the problem is?  Boosts fine with the wastegate actuator not installed, I'm in Utah, so it doesn't hurt the built engine at all, but having it unplugged just isn't right.  Looking for any ideas on what to try next?  I will mention that no-load revving the engine the actuator rod begins to move slightly before it hits the nuetral rev limiter?

Any suggestions on what to look at next?
New BCS
New Wastegate Actuator
New Vacuum Hoses which have been verified to be installed properly and not leaking
???? :x  :x

[Jeff M]

Only thing I can think of since you did good and found unplugged it will boost is the lines are plugged in wrong/reversed at the solenoid?  You can always reverse them and try it again, got nothing to loose.

Jeff M