CBRD BBK-B aka BBK-XL turbo

[mlomker]

Drunk posting FTW

I was sober. I'm blaming Aaron.

[turbotalon1g]

^Wat!!11 :(

what did I do? :frown:

[GG_9_SE]

I was sober. I'm blaming Aaron.

i wasn't sober :D

[scheides]

This car was one of the testers for the beta BBK-XL. I've posted a couple threads about it before on here.

Now it has the final production version of the BBK-XL, the BBK-B.

Results where surprising.

2006 Evo GSR

Modifications:

GST 2.3L stroker
Oversized valves in head (no head porting)
3" Downpipe
3" Agency Power catback
RRE rally cat (resonated test pipe)
Titek V2 tubular 02 housing
Ported stock exhaust manifold
CBRD BBK-B turbo
GST open cone air filter
Perrin FMIC
AMS LICP
Synapse BOV
Cosworth M2 mivec cams
FIC "BlueMax" 1550cc injectors
AEM fuel Rail
AMS fuel return line
Denso IKH24 spark plugs (1 heat range colder)
BlaqOps Progressive double pumper system
GM 3 port boost solenoid using ECU-controlled boost
Stock ECU (Tephra V7 ROM)
Stock MAF
Stock Intake Manifold
Stock Upper IC pipes
E85

33-34psi peak, 30psi out the top

I decided to overlay both 3rd and 4th gear pulls to show the difference a gear makes in spool up, and because of that, the torque and area under the curve differences. Obviously after seeing this, you should always ask what gear a particular posted dyno chart was made in.

On this particular car, at 4300rpm, there was a 100 wtq difference between the gears. That nice 2.3L breathing much better with more exhaust gases to the turbo with earlier spool in 4th.

518 whp / 509 wtq in 4th gear

510 whp / 464 wtq in 3rd gear

http://norcalmotorsports.org/users/bryan/mods/EVO/evo_tunes/brian_j/101610/brian_BBKB_101610.jpg

- Bryan

http://forums.evolutionm.net/evo-dyno-tuning-results/520062-518whp-509wtq-cbrd-bbk-b.html

[bryce_]

jeezus

[Murlo26]

It looks decent, not great for a 2.3L imo. Sure torque is more than what I have on my car, but spool is worse than my car and overall power is roughly the same.

I still think the black is the way to go on the 8/9's....antisurge housing ftw.

[Matt D.]

What can we expect this turbo to put out on an Evo 8 2.0 with pump gas? Seems that everyone always has E85 and larger displacement with MIVEC when posting dyno graphs.

[scheides]

I would use my evo8 as a base example. Figure about 300rpm spool loss so 25psi by about 4100rpm but an extra bump in power up top so maybe 380-400whp on pump gas and 440-460whp on alky/e85 (at DB). I was (and still am) gunning for 400whp on pump on that dyno, and thought a conservative tune with ~440whp on the stock bottom end would be just dandy.

[Murlo26]

I would use my evo8 as a base example. Figure about 300rpm spool loss so 25psi by about 4100rpm but an extra bump in power up top so maybe 380-400whp on pump gas and 440-460whp on alky/e85 (at DB). I was (and still am) gunning for 400whp on pump on that dyno, and thought a conservative tune with ~440whp on the stock bottom end would be just dandy.

Go FPblack, you will hit 400whp on pump I bet :) Problem solved.

[Matt D.]

Go FPblack, you will hit 400whp on pump I bet :) Problem solved.
I'm just not sold that I want a turbo that big.