GDNF2ET
20+ Year Contributor
- 586
- 11
- Feb 12, 2003
-
VA Beach,
Virginia
Took some pics of my HTA68 with my Evo III 16g...
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Hmmm....built from what began life as a Big 16G. Interesting!
Of course the Big 16G's 7cm housing can be bored to accept a larger turbine where the Evo III 16G's housing cannot because it's too thin. This thing's begging for a turbine upgrade!

I'm hoping you'll have some type of before/after logs, dyno,etc
If that thing was matched with a tdo6h turbine, it would be pretty nasty.
I hav'nt had the 16g on there in about two years..Will be comparing it to the bolt-on 35R that is still on there..I have to address a slipping tranny before I switch turbos though.
My car is an automatic and I'm hoping it will brake boost on the line like the Evo16g did...

Looks strangely familiar to a turbo I've seen as recently as a couple summers ago which now lives on a GST somewhere near Austin, TX....
It's like Deja Vu! I was looking into the future!
.
The girl's here, the car's still in TX.Doesn't your Texas16g live in Pennsylvania or something like that now?
The GT compressor is probably limited a little by the TD05H compressor cover, and Christi's turbo also has a TD05H turbine as she needed the turbo to get her car running before I could track down a TD06/06H and get the turbine housing milled.Do you really think that's what the HTA68 is packing? The billet GT3071R compressor. I thought its compressor flow was more in the low 50lb/min range?
I bought the turbo used and in need of a rebuild the way it was....someone had already modded it; although the seller had it listed as a 16G I knew it was something more. It wasn't until the turbo was rebuilt that the compressor was ultimately identified.I was trying to find a 3071r compressor wheel for the longest time to pair it up with a tdo6h for what I thought was the ultimate sleeper turbo.
But I found those wheels are nearly impossible to find by themselves and ridiculously expensive if you do.
I installed mine over the Christmas break and didn't have much time to do some pulls because police were all over my usual routes. I was running a BW S256 before and obviously, the HTA68 spools considerably quicker; very similar to a 14b and is incredibly loud, especially compared to the Borg Warner.
I'll definitely try to get some quality pulls on New Year's Day and report back, also maybe even add some meth to the equation, since I'm severely limited with 91 octane.
I installed mine over the Christmas break and didn't have much time to do some pulls because police were all over my usual routes. I was running a BW S256 before and obviously, the HTA68 spools considerably quicker; very similar to a 14b and is incredibly loud, especially compared to the Borg Warner.
I'll definitely try to get some quality pulls on New Year's Day and report back, also maybe even add some meth to the equation, since I'm severely limited with 91 octane.

What happened to the S256?

So it's louder? What kind of noise is it? Is it a turbo whine sound?