I'm simply a design consultant. Whether or not "dynos" are published are up to the user, I rarely keep copies. If you don't believe my judgement for it, that's fine. Hell, you can find dynos and videos on YouTube if you need visual proof.

 

Gotcha. No sweat.

 

Man oh man.
TiAl is telling my local seller the 28 series v-band housings
won't flow enough for my V8.
My power goals are so realistic and modest.
Is this just up selling or have those that made a similar
set-up defied physics?
Wow.

 

Um... Your goals are realistic. They will flow for your V8s. Put them in the larger .82 TiALs and you'll be fine. I'll talk with TiAL tomorrow and get to the bottom of their particular logic. We've done it, and it works.

 

I appreciate it.

 

A 3067 will work, but even with the smaller A/R, not sure it would spool the same. Plus, it's a bigger piece to fit in the hole!!

 

Any chance you found some time to chat with them Shodan?

 

I can't find the ID of the TiAl Gt28 turbine inlet flange. Anybody know it?
Borg warner matchbot says I need about a 54-55mm turbine diameter. That's for sure T25 territory. Just trying to find the ID of the flange so I can start planning the fab parts accordingly. I'll know once the flanges show up, but trying to get all material here around the same time.

 

You'll never see any compressor maps for any precision turbos.. company came out and said they simply won't pay the 20, 000 something per map as they didn't feel it was cost effective (meaning they don't have the equipment in house to do it do they would have to contract it out to a third party)

 

I believe the inlet size is the same on the 28,30, and 35r housings. I have a 3076 with the tial housing and the inlet is right at 2". They all should be the same because you are able to swap between the three, or at least that was the information I got on it.

 

Just ordered twin EFR 6758's. The matchbot liked them. Hope they live up to expectations. At least the 7163 is coming for more power in the future.

 

After all of that, couldn't get any non-coated EFR's, and they are going to do their own v-band anyway, so re-inventing the wheel isn't worth it.
I'm going to try and put the EWG's right on the TiAl housing and see if it fits better. I like it there better. Should get better flow than on 1 side of a collector.
Went with 2867's. I will try the EFR's later when they go to v-band and the supply is more consistent and hopefully back to investment casting.

 

It turns out it was a preferential decision as to why it wouldn't work, and not based upon any solid examples. I spoke with a couple people at Garrett direct, and yes, the GT2871Rs would be the best option in the TiAL .63A/R Turbine housings the fit the stock exhaust wheel.

 

Well, if the matchbox liked them...


But either way, i'm sorry I didn't get back to you fast enough, but it could work.

 

The .63's? Wow, never would have thought. Ordered the .86's as per our last talk here and everybody else's thoughts too. Hope it's not a dog.
The 71's 56 trim was a nice match, but I like the better efficiency of the billet wheel in the sweet spot. The 71 was a close second, and a bit cheaper.
Damn. Really, the small housings hey?

 

You're ok. the .63A/R in T3 format is the same as .86A/R in the T25.

THe material of the wheel deals with durability, not efficiency. its the design of the wheel that makes it more robust. The GTX2867R would have also sufficed as well. We used those on a 5.7L GTO last week.

 

Yes, the CNC wheels have a better design, that's where I was going with that.
Good stuff, the GTO should rock.
I figure it's more than enough for me, and enough for others that think they need more power.
Ah, ok, sorry. You never said T3 in the post. Great, pumped about this.
I'll post graphs at the end. Thanks Shodan.

 

Turbos arrive tonight!
Finally starting to get parts together. Head flanges are cut, tubing is here.
Just have to work out A-W core sizes, exchanger placement, and order all the fuel related upgrades. TiAl EWG's and BOV's en route also.
Going to coat and blanket the turbines, since they are going to get very hot being on the small side.
The charge piping will be as short as possible, and likely stick with keeping it small.
After doing this, not sure how I'm going to be able to keep my hands off the DC5....

 

I think you'll be JUST fine with those. Please Enjoy.. glad I could help.

 

Finally in my hands....


Now to collect the rest and start the build.

 

Sexy