Wastegate actuator

[sleeperred90tgp]

Man if you did I still don't remember :lol: , unless because I never got to see what they had/they don't list pics on their web site, I didn't make a mental note on it :? Got to see it maybe own it to recommend it 8) .  Thanks (again) for the link, will make a note on it better this time :).  

Any pics, since you bougth "this one" is it like the one on the TGP or??  And its "drilled for a spring for more boost" meaning you can open it up to swap different spring pressures?  And that spring it came with worked on your TGP?  Might not have a memory but am sweating the details here with these questions, that I know 4pasnu will be asking next :lol:

Jeff M

This is the exact same actuator that came on our cars P/N 430819-92
3198  22757. The spring that I added as you can see is external. Different springs = different boost. I must have a dozen springs that I have chopped upto get the desired boost. The one in the picture yeilds about 14#. And yes I found a spring which will go with it. The internal spring is not really servicable.
The slots make it a brezze to install. Getting the old one off is a PIA. :evil:

There are 800 numbers and they claim to be able to get hard to find parts, that's why I went to them. When I got mine they had to have it shipped from wherever so if you buy one I think your looking at double
shipping.

There ya go Jeff. And everybody else. :)




Jud

[god910]

Ha, Jeff your getting old. :lol: I gave you this source years ago.

Yes, he is.

http://www.mddistributors.com/   You should ask god910 (Jay) how he files his stuff cause he can find anything. :roll:

HEY!  What's that supposed to mean?  :lol:

[sleeperred90tgp]

Jay you have found a couple of things that I had posted that I couldn't find the post.  :) I think one was a picture and I couldn't find it in my computer or anywhere. Was hoping you would jump in with a picture of the waste gate actuator cus I couldn't find one and I know I have posted a picture of it somewhere. The stuff you did find you said you had it filed away. So therefore your filing system is better than mine. :roll:

Jud

[Jeff M]

Jud, VERY NICE!!!! THANKS!!  But I still have to ask, what psi on a stock chip and on my chip did this actuator give you without the added spring??

Did it bolt on and align the same as the stock one?

Now, if read on a real boost gauge, 14 psi is too much for our turbo to run, even with higher octane!  12 psi is max safe and useable i.e. too hot of air past 12 psi so NO extra power there!!!.  And timing in my chip at that point is taken down from stock or you get knock/detonation, hell you get 10 degrees of knock retard at 10 psi of boost with the stock timing but that is because GM/McLaren never tested at 10 psi, why would they?  

Thanks again for the pics and info, got a guy who sure as hell better be reading maybe replying to this informative post!!! (gearhead43), that too so I know he sees this since he is also in desperate need of one and hounding me for help to get one :lol: .

Jeff M

[mfewtrail]

Now, if read on a real boost gauge, 14 psi is too much for our turbo to run, even with higher octane!  

I believe Jud runs a bit better turbo then we have stock, I did a quick search and came up with a post stating he has a "GT28."

[Jeff M]

Now, if read on a real boost gauge, 14 psi is too much for our turbo to run, even with higher octane!  

I believe Jud runs a bit better turbo then we have stock, I did a quick search and came up with a post stating he has a "GT28."

Ahhh, ok!  Though that might still be pushing it for our compression, if its an upgraded turbo then its mass air output will be better meaning you don't need to run higher boost for higher hp (though you can get more too), so its possible that 8 psi from that turbo is equal to 10 psi from ours (just an example/rough estimate) just think of the mass air we all get in colder months verses the wimp our cars are in the hot summer month when the air thins out, same difference, dense oxygen rich/mass-air, and that all important proper amount of fuel for that extra oxygen!  And if he has my chip, going to need to not just check the fueling with a wide-band, going to be able to add timing too up top, checking the amount at cold extremes to hot extremes, test things or just pray 8)

Jeff M

[sleeperred90tgp]

Damn Jeff now you are really making me search my memory and I am older than you are. :wink:

Lets see now, Can't say I ever compared chips for boost, can't say for sure when I got your chip. 3 years 4 years?  I put an aftermarket boost controller shortly after I got the car so the chip never entered the equation.  That actuator as I remember allow the waste gate to blow open at around 8-10#. Sorry couldn't help you there.

The only time I have compared your chip was to see if the stock chip would support larger injectors. It did but wasn?t as fast.

Trust me, if you went to the dealer and ordered  the actuator this is what you would get. This one is identical to my old one(stock one). What's throwing you is maybe the slots. Well I slot everything I can for easy removal and installation. Try putting the bolts back in. It?s a bitch.

As for boost. When I first came to Houston 7 years ago I bought and ran a convenience store in Baytown (Home of Huston Raceway Park and the Spring Nationals. In 2 weeks.) So here I am 5 miles from a drag strip. Hadn?t been to a strip in like 20 years. So off I go with my 16# boost and managed a whopping 16*+ run. Well I couldn't go up in boost so I went down. Anyhow when I got to 10# it turned 15 3's. This spring is the only one left that I know what the boost was.

Matt. Yes I am running the GT28BB for the last 2 years. Can?t go much over 10# without detonation but there is a whole lot more air in this 10#.

Went to the strip a week or so ago and made one run 13.887 @ 101.69.  :) If you want to post it to your list I?ll email it to you. At least I got out of the 9?s.

Only made one run cus the NHRA Division 7 big boys were in town so I just watched. Pretty awesome cars and times. Went back the next day  and Sunday for eliminations. Well worth going especially when I walked up to the ticket window and some guy handed me 3 tickets for me, wife and grand son and wouldn?t take a dime. ($55 worth) They liked the first hour or two until the nitro dragsters went of. That scared the hell out of them. I guess they won't be going to the Spring Nationals with me.


Jud

[4PASNU]

Well, my actuator is on its way.  Using the link Jud supplied I found a phone number.  I called but unfortunately they couldn't help me because I was not in their distribution area.  They referred me to a place in Kentucky that said the same thing who then referred me to Performance Turbocharger in California.  I ordered the part number 430819-92 (thanks again Jud!) and it came to just over $103 with tax and 2nd day shipping.  I should have it Monday.  The guy I talked to was Gary and his email address is garyhetrick@dieselusa.com, phone number 1-866-887-2648.  I would like to thank everyone who posted.  I'll post back when I get it installed and let everyone know how it worked out.

[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

[god910]

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.

[Invasion1]

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.

Badass indeed.......

place close to me retails the Forge for $212 CDN

[mfewtrail]

Went to the strip a week or so ago and made one run 13.887 @ 101.69.  :) If you want to post it to your list I?ll email it to you. At least I got out of the 9?s.

Jud

Nice run, email it to me mfewtrail@alltel.net and I'll gladly update your time on the page and your slip. 8)

[Jeff M]

Hey as long as it?s the same as stock, that is all I needed to know 8) .  I was guessing it was not and why I was asking the boost readings you got, which don?t matter now since its stock, NICE FIND!!!  Going to stock a few just in case!!!

I do trust you it?s the right one 8) , but ?dealers? at least GM dealers could never get just the actuator :roll:  .  You are right, Garrett is a pain to deal with, I know all too well, all of 4 guys handle all sales, that is insane!!!!

You made the slots, ok, got it, I just rotate the compressor housing to allow clearance for those nasty bolts, then clock it back so the wastegate rod is 90 degree to the actuator :) .

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: .

Thanks again Jud, I emailed gearhead43 to let him know too, that should make his life happier :biggrin: .

Jeff M

[Gearhead43]

Thanks Jeff...

Yea the last part I need so I can RELAX... Sheeesh...


BTW that turbo you sold me.. errr Cheapturbo.com is currently rebuilding it.. They report that the turbine housing is scored... So it still needs a new housing...  :? .. They are on backorder .. Waiting for a shippment to come in from Garrret...  :(

There goes AutoFair for the second time in 2 years...

[Jeff M]

Well I just told you what Jud found out for us, he da man 8) !!

Well that was a turbo off of eBay, I got what I got and so did you :wink: aren?t you ever happy :lol: .   I never ran that turbo or took it apart (was bought to have spare parts to mod and work with, really did NOT want to sell it but you were nagging me :lol: ) so did not know anything about the housing being scored, and to tell you the truth (basing this on your report of "scoring"), I would NOT worry about it!!!  All the turbos I have seen from swapping pipes on all my cars, and the many who have come here over the years, 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, we have more then enough exhaust from our engine to already have next to no turbo lag, and holding 10 to 12 psi of boost is not an issue and is all the boost you want this turbo to run anyways.  So your turbo shop thinking what most people do unless they own a TGP, having concerns with turbo lag and opening the turbine outlet would increase the lag time for most turbo engines, but like I said, we have too much exhaust and is one of the key area I am working on with turbo upgrades, FACT!!

So with all those facts, I would just have them clean the outlet and don't think of it as an issue, I never did and the facts above support this!  If there is scoring then that had to come from the turbine wheel making contact, so more importantly better check the turbine wheel!!! This all falls back to what I said about buildup, the scoring might only be the turbine wheel running into the carbon buildup (not for sure the scoring actually went into the iron of the housing????) so I don?t think at this point (not having the turbo apart here at my place) you have anything to worry about, so be happy :lol: , and get that wastegate 8) !!

Last, surprised they did not complain to you about the cracks in the wastegate hole, all T2-T25 series turbos have these, knowledgeable shops don?t worry about it, and non have ever seen it an issue or bad enough that the thing falls apart!

Jeff M.