WG Actuator on a T70

[turbojimmy]

I picked up my 'new' used turbo today and have a question about the wastegate actuator. I have what I think is a HD actuator on my PT61 (on the left in the pic). It has what appears to be a bracket specfically made for the actuator on it. My 'new' 70 has no such thing (on the right in the pic). It appears as if I can make the actuator fit if I work on 'egging' out the holes a little bit. Would the geometry be correct if I bolted it directly to the turbo without a bracket like on my PT61? What do people normally do with the internal wastegates? The person who sold me the turbo was running an external gate so he didn't have this problem.

Thanks,
Jim

 

[RICHIE HIGH PSI]

I have the correct actuator with bracket.
Came off my gtq70 turbo.
$70.00 :smile:

 

[RUQWKNF]

There is a difference between the bolt pattern spacing on a PT70 GT-Q turbo with a new H cover that has the Precision logo casted in, and T-netics or ITS compressor covers. Therefore, a wastegate actuator/bracket assembly that was specifically made to fit a PTE PT70 GT-Q by Precision, would not be a direct bolt on for a T-netics or ITS 70 turbo, unless the previous owner made modifications to it to make it work. The only actuators that PTE sells are for PTE specific compressor covers. These include TO4E 3" inlet, 2" discharge PTE casted compressor cover, TO4S 4" inlet, 2.5" discharge Garrett casted compressor cover, and the H cover with 4" inlet, 3" discharge PTE casted cover with the Precision logo on the discharge.
HTH

Patrick

 

[turbojimmy]

Therefore, a wastegate actuator/bracket assembly that was specifically made to fit a PTE PT70 GT-Q by Precision, would not be a direct bolt on for a T-netics or ITS 70 turbo

Thanks. I'll contact Turbonetics today.

Jim

 

[scot w.]

I have the correct actuator with bracket.
Came off my gtq70 turbo.
$70.00 :smile:

Richie, i just bought the PTE 70 GTQ and i'm in need of the actuator. i'll take it! PM me your info. I did'nt want to highjack this thread, but when I saw that there was a differance and it wouldn't fit I thought it would be okay. Scot w.

 

[turbojimmy]

Richie, i just bought the PTE 70 GTQ and i'm in need of the actuator. i'll take it! PM me your info. I did'nt want to highjack this thread, but when I saw that there was a differance and it wouldn't fit I thought it would be okay. Scot w.

That's fine with me! Sorry Richie.

Jim

 

[salvageV6]

Here's my HD actuator on a GT70 Innovative with a THDP.

Angle isn't perfect from actuator to swingarm but it's better than some I've seen on some cars.

Been on over 3 years now and works fine.

PS: I made a stock star shaped turbo to mounting bracket work too, just needed to use a different spacer/bolt and nut setup for my car to make it work.

 

[turbojimmy]

Here's my HD actuator on a GT70 Innovative with a THDP.

Angle isn't perfect from actuator to swingarm but it's better than some I've seen on some cars.

Been on over 3 years now and works fine.

PS: I made a stock star shaped turbo to mounting bracket work too, just needed to use a different spacer/bolt and nut setup for my car to make it work.

I posted in my other thread (about the mounting bracket) that it appears as if the HD actuator bolts directly to the compressor housing on the Turbonetics. Yours is bolted right to the compressor, too, right? Ironically, my PT61 has that custom bracket but the geometry has never been right. I didn't notice until yesterday that there is another hole on that HD actuator that would allow it to swing down a bit. That would've fixed it.

I have an extra stock mounting bracket. When you say 'different spacer/bolt and nut set up are you talking on the turbo itself or up at the bracket?

Thanks,
Jim

 

[turbojimmy]

So I got home and took the actuator off the PT61 and the holes don't line up with the 70 compressor housing. Did you tweak the HD actuator so that it would bolt up? Turbonetics was no help....

Thanks,
Jim

 

[salvageV6]

Hey Jim, I probably won't be much help to you.

I don't recall any problems with the actuator bolting up to the Innovative, but it's not a Trubonetics so who knows the geometry, well Jack Cotton probably would since he sells both.

Mine is bolted right up to the compressor and I think it's the same type as the right one in your pic. that's off the turbo in your picture.

I'll try and get some numbers off it but I doubt that's gonna happen since it's dark out and 18 degrees right now. I will take a looksee closer for ya and try.

The star bracket I may have mounted differently than the stock setup since I had water lines and all going through that space.

I did have to use spacers to keep it a set distance from the heavy J bracket, since the P-trim housing is bigger or at least that's how I remember the reason.

I used nuts for spacers but aluminum tube or hardware spacers/washers may work as well. It's not perfect looking on my car but I wanted it held solid up there and lots of people didn't use the bracket with the big turbos so I fabbed it up myself.

I'll check for some pics. of that. But mines been fine on the driver which has about 16K on the BB turbo now with no real issues.

I think mine didn't have the star bracket on it when I first installed it and I added it on a day or two later because I realize that was a pain to install and make work right.

And the first image doesn't have the water cooling and star bracket install that I did the next two days after the initial install at my buddies house.

 

[salvageV6]

I wasn't able to see any numbers or labels on the HD actuator.

However I did realize after looking at it with the flashlight that I removed the Innovative metal bracket from under the two screws that hold the compressor housing from rotating.

That would be one section of it where the actuator bolts on, probably needed to do it to get the holes to line up so maybe that will be something you can try.

Another thing is the star bracket was added over the exhaust housing same type locking brackets which most likely spaced it out a bit further which is why I had to use the spacers to get it to bolt in line and securely.

I don't recall on the stocker if that bracket is part of the housing cover mounting, or added over another part of the turbo itself.

Just some things for you to check.

I think the people that say you can swap turbos in an hour or two are funny.

That doesn't even cover bolt removal from the initial turbo usually.

 

[turbojimmy]

Hey Jim, I probably won't be much help to you.

I don't recall any problems with the actuator bolting up to the Innovative, but it's not a Trubonetics so who knows the geometry, well Jack Cotton probably would since he sells both.

Mine is bolted right up to the compressor and I think it's the same type as the right one in your pic. that's off the turbo in your picture.

I'll try and get some numbers off it but I doubt that's gonna happen since it's dark out and 18 degrees right now. I will take a looksee closer for ya and try.

The star bracket I may have mounted differently than the stock setup since I had water lines and all going through that space.

I did have to use spacers to keep it a set distance from the heavy J bracket, since the P-trim housing is bigger or at least that's how I remember the reason.

I used nuts for spacers but aluminum tube or hardware spacers/washers may work as well. It's not perfect looking on my car but I wanted it held solid up there and lots of people didn't use the bracket with the big turbos so I fabbed it up myself.

I'll check for some pics. of that. But mines been fine on the driver which has about 16K on the BB turbo now with no real issues.

I think mine didn't have the star bracket on it when I first installed it and I added it on a day or two later because I realize that was a pain to install and make work right.

And the first image doesn't have the water cooling and star bracket install that I did the next two days after the initial install at my buddies house.

Don't worry about the numbers - I appreciate your posting as much as you have. Neither actuator will bolt to the Turbonetics compressor. I've asked Jack for advice (acknowledging, of course, that I didn't buy it from him). Worst case is I can modify one of the two actuators I have to at least bolt to the housing then figure out the geometry later.

The turbine housing moves freely unlike my PT61. I was able to get all the bolts out - just need to bolt up the stock 'star' bracket and then see where it lines up with the J-bracket. If need be I'll use spacers like you did.

I'm getting closer......thanks again.

Jim

 

[salvageV6]

On the stocker and TA62 I have, the star bracket is part of the exhaust housing hold down bracket and not added over it like I did with my 70.

Reason I did it that way was the three bolts I need to use to hold the star bracket were on separate pieces of the exhaust housing hold down as it was already mounted in the car. I couldn't rotate it at that point.

So I simply took two bolts out of one piece and one out of the other piece and added the star bracket over those three bolt holes, which explains my spacers and geopmetry on the exhaust side.

I think I knocked the studs out or found a bracket with no studs also, I think I used 1/4" - 20 bolts since they were slightly smaller and allowed me access to get in there easier and bolt it all together.

Point is make sure it all lines up before you put it on the car.

Once it was on and in place I was driving mine daily, and just finished it up a bit differently. :smile:

 

[salvageV6]

I took off one section of the compressor housing hold down bracket on mine over two of the holes, I remember that it allowed the wastegate to line up better.

I don't see that being a show stopper if you can get it to line up with the holes enlarged a bit and the dogbone bracket off.

Back of the actuator is flat I believe just like the dogbone hold down bracket, should serve the same function and not allow the compressor to move.

Which it won't with the rest of the dogbone shaped brackets on there anyway.

 

[turbojimmy]

I took off one section of the compressor housing hold down bracket on mine over two of the holes, I remember that it allowed the wastegate to line up better.

I don't see that being a show stopper if you can get it to line up with the holes enlarged a bit and the dogbone bracket off.

Back of the actuator is flat I believe just like the dogbone hold down bracket, should serve the same function and not allow the compressor to move.

Which it won't with the rest of the dogbone shaped brackets on there anyway.

I'll have to try that. It looks like no matter what I do I will have to tweak the holes on the WG actuator - or come up with a bracket like on my PT61.

The stock 'star' bracket bolts to the exhaust housing and also acts as a clamp to keep it from rotating on the center section. If the radius of the Precision housing is the same as the stock one then it should bolt right up and also act as a clamp. Like I said, I was able to get all the bolts and both clamps off of my T70.

The WG actuator puzzles me. I'm curious as to what other Turbonetics turbos look like. The guy that had mine before I bought it had an external wastegate so it wasn't an issue. I'm tempted to go that route.....

Jim

 

[D's GN]

My 66BB has the wastegate rod bend up at an angle, I don't think you can make it work with what you have. Give Jack a call, he will set you up. I have a pic somewhere that shows the angle, I'll try to post it tonight.

 

[turbojimmy]

My 66BB has the wastegate rod bend up at an angle, I don't think you can make it work with what you have. Give Jack a call, he will set you up. I have a pic somewhere that shows the angle, I'll try to post it tonight.

Thanks. I'll give him a call today.

Jim

 

[turbojimmy]

Jack hooked me up with an actuator. It is indeed bent in a 'couple of different places'. I'm all set!

Thanks all,
Jim

 

[turbojimmy]

Got my actuator today. There is some substantial tweakage to the HD actuator to get the geometry correct. A bend here, a bend there, some heat applied here, a little grinding there. It would not have been easy to do myself, plus Jack knew how and I didn't. Looks like it will line up nice.

Jim