Biggest stock appearing turbo.

[Turbo6Smackdown]

I was wondering, what the biggest stock appearing turbo was, (on the cold side anyway) that you can still mount a turbo shield onto. Is it the pta52?

 

[johnplogii]

I believe it would be a TA66GTQ.

 

[RUQWKNF]

Correct.

And I believe it's gone deep into the low 10's in stock appearing heads up classes.
HTH

Patrick

 

[NCTURBOS]

I believe it would be a TA66GTQ.

Very few made, and somewhat hard to find, unless you look in my garage... :biggrin:

I'm told quite a few comp. housings had to be scraped for each one made as they would crack through while machining to fit the 66-67mm wheel.


K.

 

[Turbo6Smackdown]

Anyone know anything about this "stealth 70" people keep talking about?

 

[John Wilde]

Anyone know anything about this "stealth 70" people keep talking about?

I had one about 10 years ago.
I think it has a 68 MM wheel.
It felt ok in my car but not like the 70 P trim with a H Cover.

I would see if you can get the billet 62 wheel in a stealth set up!!!

 

[Turbo6Smackdown]

Ok, now that some new stuff came out.. What's the biggest stock appearing turbo out there nowadays? Has anything cool come out?

 

[Rodimus_Prime]

listening also.........

 

[Just a Six??]

I have a PT67 H cover 3" in 4' out & my cover fits it.

 

[thadeal4real]

biggest turbo under stock sheild?

what about the pt76

 

[Turbo6Smackdown]

No. Biggest, baddest turbo that is totally stock appearing. (and of course fits under our shields)
A journal bearing with billet wheel might be nice I want something that eats Z06's, and when someone looks at the turbo, they just can't figure it out.

 

[bison]

No. Biggest, baddest turbo that is totally stock appearing. (and of course fits under our shields)
A journal bearing with billet wheel might be nice I want something that eats Z06's, and when someone looks at the turbo, they just can't figure it out.

What will your combo be? I dont see much in your sig that would support anything near a 66 GTQ.

 

[Turbo6Smackdown]

You don't see it, because it's hidden... lol.
No, seriously though. I have an upcoming combo that I plan on installing in the future. Here's my deal. I have the money now. So while I do, I'm supporting two separate combos simotaneously. I'm presently building my stock combo (stock turbo/IC) to see what the max I can extract is. I'm one of those people stuck on the "I wanna see what I can make the stock stuff do." fad.
When I do find that out, and upgrade time comes, I want to throw on a 10" l/u converter of appropriate stall, the largest stock appearing turbo, a gbodyparts slic, alky kit, brian hofer trans, cam, p/p heads & intake, hemco plenum, 60 pound mototrons, ZO6 maf w/ 2nd gen translator and extender chip. I'm still in stage one for now. Experimental stage. After that, It's all out time.
I figure while I have the money now, I will slowly find each part of my stage 2 kit, hopefully used, for a good price. I'm starting now, because I know how long it will take, to assemble these pieces one by one on the cheap.

But for now, it will be a stock turbo and IC car, and I will slowly add the supporting mods to it, to see how fast the stocker will eventually get me. After that, the big turbo/injectors/converter will go in... last...
I'm one of those stock appearing guys. I hate modified looking enginebays.. Yea I know that the maf pipe and filter gives it all away, but when I'm done, I will take a picture of my engine bay and post it, and you'll see how stock it will look. I'm sure it will suprise a lot of people here.

 

[bison]

You don't see it, because it's hidden... lol.
No, seriously though. I have an upcoming combo that I plan on installing in the future. Here's my deal. I have the money now. So while I do, I'm supporting two separate combos simotaneously. I'm presently building my stock combo (stock turbo/IC) to see what the max I can extract is. I'm one of those people stuck on the "I wanna see what I can make the stock stuff do." fad.
When I do find that out, and upgrade time comes, I want to throw on a 10" l/u converter of appropriate stall, the largest stock appearing turbo, a gbodyparts slic, alky kit, brian hofer trans, cam, p/p heads & intake, hemco plenum, 60 pound mototrons, ZO6 maf w/ 2nd gen translator and extender chip. I'm still in stage one for now. Experimental stage. After that, It's all out time.
I figure while I have the money now, I will slowly find each part of my stage 2 kit, hopefully used, for a good price. I'm starting now, because I know how long it will take, to assemble these pieces one by one on the cheap.

But for now, it will be a stock turbo and IC car, and I will slowly add the supporting mods to it, to see how fast the stocker will eventually get me. After that, the big turbo/injectors/converter will go in... last...
I'm one of those stock appearing guys. I hate modified looking enginebays.. Yea I know that the maf pipe and filter gives it all away, but when I'm done, I will take a picture of my engine bay and post it, and you'll see how stock it will look. I'm sure it will suprise a lot of people here.

If you are one of those guys who truly wants to see what a TA66GTQ can do then you wont be using a 10"LU. It will be preferably a 9.5" non lock. The turbo will easily overpower any 10" converter out there.
You will most likely be doing something with the intercooler adding half another stocker to it and opening up the inlet as much as possible. You should be able to run mid 10's without killing it. Adding one part at a time will produce lousy results compared to a complete combo.

 

[Turbo6Smackdown]

I worded it wrong. I meant, I want to see what a stock turbo can truely do. I already know that a TA66gtq can be pretty fast.
And, explain to me what you mean by overpowering a 10" converter. And, how do non locks do on the street. Don't they produce higher cruise rpm's?

 

[forcefed3.8's]

That power level will drive through any unlocked lock up converter. There are some 66gtq powered cars up here running Vigilante 5 discs. When they lock, it is like another shift because the converter is slipping so much. At high 10's, and slower, the 0 pump Vigilante doesn't slip that bad, still under 10% from what I have seen. We are putting a PTC in a car with a 66gtq that had a Vigilante lock up. It will be interesting to see the difference. The thing I like about the Vigilante is the how well it drives, my car feels stock, where as my Roadmaster has an Edge converter, that slips like crazy at low rpms. It feels like a pig around town.

 

[Turbo6Smackdown]

Exactly what is "driving through" a tc? And, is the 66gtq considered a 'big' turbo? I'm assuming it is a streetable turbo right?

 

[bison]

Exactly what is "driving through" a tc? And, is the 66gtq considered a 'big' turbo? I'm assuming it is a streetable turbo right?

Driving through means that the torque input into the converter is so much that it wont couple and there will be very little to zero rpm drop on shifts and th converter will never achieve an acceptable slip % through the traps. If streetable means 3800 stall speed then yes. Thats what a journal 66 GTQ would need. When you are running a GTQ of any kind you are aiming for 1ow 10's or faster.

 

[Turbo6Smackdown]

OH. I didn't know lol. So would I want a..."non gtq" TA66 then?

 

[John Wilde]

OH. I didn't know lol. So would I want a..."non gtq" TA66 then?

I would try a P trim /65, the older version of this turbine wheel has been in the 9s.