The First Comp Turbo CTRX Hubless

[dynoman]

I just got my Comp 6971 3 bolt hubless turbo today . It is the first one made for our cars and can't wait for winter to end to try it out .
Thank you Mr Spool !!

 

[V6sleeper]

Cant wait either, i think i'm equally as excited lol

 

[V6sleeper]

Really strange to look at with no hub, hows the finger spin test feel?

 

[TurboWh1]

Looks awesome

 

[krazy86t]

what A/R is that?

 

[Pronto]

Looks killer. What exhaust housing is it, Precision?

 

[dynoman]

Really strange to look at with no hub, hows the finger spin test feel?

The same as the CTR being it's a triple BB also .

 

[dynoman]

what A/R is that?

.85 A/R

 

[dynoman]

Looks killer. What exhaust housing is it, Precision?

Not sure , the only markings on it is .85 A/R

 

[Mr.Spool]

I just got my Comp 6971 3 bolt hubless turbo today . It is the first one made for our cars and can't wait for winter to end to try it out .
Thank you Mr Spool !!

Your welcome!
I'm excited for you
It looks awesome

 

[Mr.Spool]

.85 A/R

Its .85 pte 3 bolt.

 

[Mr.Spool]

I can source 3 bolts now for the guys that want to stay 3 bolt.

 

[dynoman]

More pics

 

[Pronto]

Wow!

 

[TurboWh1]

Thats 5 axis machine work right there!!!

 

[V6sleeper]

Sick..

 

[GNVYUS 1]

Damn, that blade looks like metal and engineering art.

Just to make sure..
CTR4X 68/71 is on the website, this is rated at a max of 1250hp. Jesus that's more than the old 7675 at 1150hp.

 

[dynoman]

This is something I thought was interesting , a product certification and a balancing report. Do other turbocharger manufacturers include this with their turbos ? I've only bought Comp turbos new .

 

[V6sleeper]

Turbonetics use to do VSR balancing when they were a solo company but they never included a sheet.

 

[Mr.Spool]

Damn, that blade looks like metal and engineering art.

Just to make sure..
CTR4X 68/71 is on the website, this is rated at a max of 1250hp. Jesus that's more than the old 7675 at 1150hp.

The 6871 hubless will do more than 1250hp
Their ratings are conservative.
they want guys to be happily surprised
Sam's turbo will be 1350+hp capable.
The last 6971 ctr non hubless i did made 1200hp on a 3 bolt .85 on a buick and spooled in under.5 of a sec.
If that ramp is chosen
That's off the footbrake
Backpressure was high though with a 3 bolt it was all in.
The 4 bolt would have made 100hp more.
Looking at the data on say a 6771 ctr triple bb on a 3 bolt we saw 990 hp at 1.8 bp with a 3 bolt.
That turbo was not all in it
Ctrx is 15% more flow mm for mm
At 1000hp that's 150hp on tap and get this with faster spool
That's why undersizing which has worked in the past is not needed now with these new turbos
That allows flexibility in turbo ramps never before seen.
And footbrake power that is unmatched.