There are too many posts and too much bullshit to sift through, so I'm going to ask you a question and if you could respond to it, that would be great.

We all know that the .ar is the "volume" of either the exhaust and/or the compressor housing, correct? The "trim" of a turbo is the ratio between the smaller portion of the wheel and the larger portion of the well, no? I'm just making sure my facts are clear.

So, according to the measurements that Steve and I took, the .63/.60 is truely a 60 trim turbo (59.blah blah bullshit decimal), and the .48/.42 is a 45 trim turbo (44.63 etc). So, we could presumeably take the .60 compressor housing and fit it onto the .48/.42 and create a .48/.60, which would have a 45 trim. no? Could you take the exhaust housing and do the same? What about interchanging the wheels as well? The center section on this .63/.60 is complete ----, and if I could switch over the wheels and then get it balanced, that would be a lot easier.


I'm assuming the argument here is that there are different trims that people are trying to intermix, and that just can't happen without some serious porting?

 

sixsick6 owns
Oh my god LoL! We both shop at harbor freight like mad LoL! I've got the same digi caliper along with the matching digi dial indicator

 

I pride my self on not posting bullshit. Notice I was one of the few who wasn't.

Sure, but I have to take a ---- first.

Correct. The A/R is obtained by dividing the interior area of the turbine where the inner walls are found, through the turbine housing radio from the center to the tongue. A small A/R indicates a small interior volume with a small turbine and a large A/R indicates a greater volume, usually with a larger turbine. This isn't always the case, especially in larger displacement motors with low redline. You'll usually find diesels having large turbines with small A/R's like .36 and a turbine the size of a T4. This is to maximize spool early while still having adequate turbine speed. At the minimum A/R the turbine produces adequate rpm at low revolutions per minute but at higher revolutions sometimes cannot achieve an adacuate caudal. You should always find a compromise between achieving the lowest response possible and have enough caudal at high revolutions.

You're correct. Trim is calculated by inner^2/outer^2*100=trim. An example-if you had a 55 trim, it would give 10% more caudal than a 50 trim. This is why I was explaing the difference int he 50 trima nd 60 trim wheel. Although it doedsn't seem like much of a difference, the 60 trim inner diameter is larger than the 50 trim by roughly 10%. But when you factor in SURFACE AREA, it's close to 30% larger.

You got it. Finally. lol

Yes. But it would be no better than keeping a 60 trim .60 A/R to begin with, with either the .48 or .63 A/R exhaust housing. T Birds came with both depending on if they were ATX or MTX.

The turbine is the same regardless. Again, the T Bird came with a .48 or .63 A/R (depending on ATX or MTX) exhaust housing and .60 A/R compressor housign with a 60 trim wheel.

I've already said, you can put a 45 or 50 trim wheel in a .60 A/R housing but you can't put a 60 trim wheel in a .42 A/R housing without modifying the backside of the compressor housing. The 50 trim also came in a .42 as did the 45 trim. You'd have problems putting a 50 trim wheel in a .42 A/R housing meant for a 45 trim wheel. This is because the 45 trim wheel and the 50 trim wheel are slightly different as well.

Most of the people who're selling "T3/To4E Super60" are lying to you. They're counting on your ignorance and are winning. I'm not saying these mods can't be done, they certainly can and I do it in my shop all the time. They're just counting on the fact that 99.99% of people wouldn't know the difference anyways. That and most likely the car it's installed on will be in thre junkyard in a month anyways.

What makes it complete ----? Is it an oil cooled only? Turbine seized? Shaft play? Are you sure it's ----?

Exactly. That and the fact that alot of people are lying to alot of people strictly to make a sale and alot of people are none the wiser.

And let the bullshit continue?

 

Yeah Colin. You FINALLY figured out after your first post in this thread that a 42/48 is a 45 trim. Douchebag over here has been saying for pages that it was a 50 trim. Colin, if you ever come up with a correct answer in your first post you should be told "You got it. FINALLY"

Fucken douchebag.

 

------ A you guys put a NWS edit on the title of this thread please. geebus im at work and just saw the above pictures.. thanks guys

 

Well, I suppose I should have it "professionally" rebuilt, but it still smokes like a bitch after a total rebuild kit. Do you think this is possible, or is it just rebuilder error?

Honestly, this drama got way out of hand, and I think it's good to get the facts out here. You and Steve may not agree, but I think you're an alright guy and know a lot about the subject. Possibly a misunderstanding in this post? Anyways, thanks for clearing ---- up.

 

Probably the ring land on the turbine. If it's shot, a new oil seal won't help. Here is a bad ring land:


And here is a good one:



Seals themselves can also go bad:


"Honestly, this drama got way out of hand, and I think it's good to get the facts out here."- Amen

"You and Steve may not agree"- I didn't agree with his incorrect information.

"but I think you're an alright guy and know a lot about the subject."- Most poeple say I'm an -------, which I already know, and yes I do know alot.

"Possibly a misunderstanding in this post?"- The misunderstanding came from incorrect information. Notice that he's still babbling about a 50 trim being in a .42 A/R housing and completely dodging the fact that a 50 trim and a 45 trim can come in the same A/R compressor housing but are slighty different and can be distinguished by the exhuast side. The 50 trim wheel will fit in a .42 A/R housing meant for a 50 trim wheel but won't fit in a .42 A/R housing meant for a 45 trim wheel.

Stealth still doesn't get it.

 

Oh, the misinformation. Makes sense for me to tell you to measure the actual turbo's we were talking about. All this time you're trying to say it was a 50 trim, and it wasn't. Maybe that would have been a good reason to figure out which turbo's we're talking about before you try to sound like jesus on turbo's.


Good thing nobody was talking about a 50 trim except you. If you woulda measured the same turbo we were talking about in the first place you wouldn't have to explain yourself.

 

I think it's those seals that are shot. Didn't replace them because I thought I didn't need to, so I will be doing that. Thanks.

 

Did you miss the part where a .42 A/R housing comes with a 45 or 50 trim wheel depending on the exhaust A/R?

And this guy in the beginning:
45 trims are pointless when 50 and 60 trims exist. You aren't getting anywhere using a 45 trim in a 60 A/R besides what you think you feel on the butt-dyno. If you still feel that this is some great swap, make sure you also check and or tighten the nut behind the wheel.

I already told you, I already have.

Did you miss the part where a .42 A/R housing comes with a 45 or 50 trim wheel depending on the exhaust A/R?

If the seal is bad then the turbine ring land is more than likely bad as well. They don't usually go bad without the other going south as well. Unfortunately the only way to find out is to disassemble it and check. If you plan on rebuilding it with a new seal only, make sure you mark the compressor wheel as well as the turbine and install them inline with each other.