The only real difference, as I understand it, is the new compressor is the same size but CNC'd instead of cast with the fancy new angles etc and more efficient. The exhaust side is where gains are to be had though. The TE44 uses an old style T31 exhaust wheel where the 5857 has a much more efficient exhaust side. You'll only ever know though when you approach 120mph in the quarter and then you may get an extra 2mph out of the 5857/5858 over a TE44. Both should be great on the street and you'll need over 25psi on a stock headed car to see the difference, maybe even 30psi.
Turbo Recommendation
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The only real difference, as I understand it, is the new compressor is the same size but CNC'd instead of cast with the fancy new angles etc and more efficient. The exhaust side is where gains are to be had though. The TE44 uses an old style T31 exhaust wheel where the 5857 has a much more efficient exhaust side. You'll only ever know though when you approach 120mph in the quarter and then you may get an extra 2mph out of the 5857/5858 over a TE44. Both should be great on the street and you'll need over 25psi on a stock headed car to see the difference, maybe even 30psi.
The 5857 will cover a higher hp but it won't make more vs a 44 till you start going beyond the means of the 44 which is around 53lbs/min. The turbine and compressor wheel both stall around there. Most on here never get close to 53lbs/min. If they did and had a converter that could couple the power up top the mph would be in the 121-122 range. The 5857 should go to at least 125mph. It's hard to beat a te44 with a Garrett .63 for spoolup if the converter is stock.
I'll get 120mph out of my 44 this year come hell or high water but I probably won't push it harder than that on just alky. I couldn't get it to 25psi last time out and it still went 118.49. Even with my not so slim figure
we4Mateo said:I'll get 120mph out of my 44 this year come hell or high water but I probably won't push it harder than that on just alky. I couldn't get it to 25psi last time out and it still went 118.49. Even with my not so slim figure
Try to keep the engine between 4500 and 5000 as long as possible. Tall slicks help a lot when running it for all it's worth.
Thanks! I do lock in third but it's starting to trap right at 5000rpm on a 255/60/15. I think I'll try the 275's next.
we4Mateo said:
I'd lock it right where it will drop it to 4600 if possible and use the taller tires 275/60-15 MT are 27.3 measured. Use the online calcs to determine what mph you need to lock at to get it to land at 4600 with the various tire heights.
BoostedTtype
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Did you get the 44 or the 5857?
NastyStrontium
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I went with the TE-44 with the billet wheel, the 5831. Seems to work well so far.
BoostedTtype
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Ok thats what i was wondering... So the 5831 is the TE44 but with a billet wheel?
turbojoe1 said:
From what I understand, it's the exhaust side that limits that turbo. The compressor can't be run all out as the air can't get past the exhaust wheel fast enough. Even my te44 suffers from this same issue. I may be mistake, but I think the exhaust turbines are the same on the 61 as my 44. Someone please educate me if incorrect.
YungLilFly said:
What is the difference between a ta49, 44 and the 5857? All the same in theory, ^ popular stock replacement, one looks stock, one don't, as for the 5857 different name? Same wheels. But what is the 5831? These turbos are all so close to power output, virtually the size, what's the reason for all these? Efficiency wise, wish ones the top dog, and which come in last?
Same goes for the 6057, ta51's and so on?
Thanks I'm confused
turbojoe1 said:
I believe the 5831 is the wheel combo in a ta49 or te44. The only difference is the cover. 5857 is the updated wheel with billet compressor? And the 5858 out now replaces the 5857 but has billet wheels on compressor and turbine? I get confused by all of this. I don't know much about the last two turbos you mentioned.
we4Mateo said:
From IV read, that's right. So what would be the advantage with the lager compressor wheels with the same same small turbine wheel and .63 housing?
The .85 seems just to big for the street, and would require a lot more motor/stall.
Input?
Thanks Joe
turbojoe1 said:
That's an excellent question! Why would you need a bigger compressor if the exhaust won't flow the air? It just makes the turbo spool slower from the heavier compressor wheel. If you aren't trapping 120mph in a full weight car, you don't need anything bigger than a ta49/te44. If you need more air than that, than get a 6262 or 6266 or a nice hybrid from Bison. He's the turbo guru and will hook you up. He understands mass flow as well as anyone I've encountered and had lots of dyno time to back up his knowledge. I too believe the .85 ar is too big for the street unless you have a really loose tc but that's less fun in a street car.
BoostedTtype
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Good questions and info guys.... So the 5831 seems to be fairly priced at 595 brand new...
Oh the possibilities
Oh the possibilities
Like everyone says, it's all in the combination, but when it comes to all these available turbos, it's not that easy to understand. Guess that's why guys stick to what they know works.
I'm am very interested in learning more about this. I'll just have to continue reading and asking questions.
Seems there is more to the book after chapter one, my brain is like a happy sponge right now.
Thanks Joe
I'm am very interested in learning more about this. I'll just have to continue reading and asking questions.
Seems there is more to the book after chapter one, my brain is like a happy sponge right now.
Thanks Joe
turbojoe1 said:
I know the feeling. I've been at this for a couple of years and I'm just touching the surface of turbo tech. Thanks for asking and it's good to give the old noodle a workout; these cars are good for that. I DEFINITELY don't try to blaze new paths and rather just prefer to use what others have proven to work.
