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#1: 02-29-2012, 12:08 PM
My BNR 18G Review
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Location: Connecticut
Car: S6 and Silverado. Sold Stage 3 specb.
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CLICK TO Post 126 for updated TUNE INFO. Also - Post 142 has my new dyno plot. Retuned at 347 whp!

Had AZP installs do a boat load of installs to my car this past weekend... Yesterday, EFI Logics did the tune. Thanks to both AZP and EFI for getting both aspects of the job done well. Coming from a stage 2, this was a noteworthy upgrade!


2009 Spec.B


BNR 18g Turbo with Upgraded Actuator Arm and wastegate
IP&T Filtered Oil Lines
DW 750cc top feed injectors
DW 65c High Flow Fuel Pump
Perrin TM Intercooler
NGK Iridium One Step Colder Plugs
Perrin turbo inlet hose
KsTech Cold Air Intake
Grimmspeed Boost Control Solenoid
TurboSmart Kompact Blow Off Valve
EFI Logics Stage 3.5 Dyno Tune via Cobb Accesport


SPT 1.5 Cat Back Exhaust
Cobb high flow catted down pipe
Cobb Heatshield
Kartboy Shifter Bushings
Whiteline front adjustable sway bar
Whiteline rear adjustable sway bar
KartBoy Solid front & rear endlinks

As you should be able to see on the dyno above (if i pulled in the image right), the car made 301 WHP. Not too bad. EFI had it at 311, but couldnt get it consistent... So they conservatively backed it down to 301 to work out some quirks. That's on a Mustang Dyno, so the number is likely a bit low.

My impression of the 18G vs Stage 2:

I debated and haggled over which turbo to go with. I was torn between the 16g, VF52, and the 18g. Ended up with the BNR 18g.

Coming from a stage 2 setup, the most noteworthy differnce is the spool and boost characteristics. The best way to summarize it from a 'feel' standpoint, is that with stage 2 - you feel the punch when the turbo hits. It puts you back in your seat. With this new stage 3.5 setup - the punch is a bit less, but it seems to more gently increase the power before the good ol' stage 2 punch would have hit, making the base point a bit different. In addition, after the stage 2 came in with guns a blazin', it would quickly disiptate. Stage 3 just keeps at it... Seamingly getting stronger and stronger. I almost didn't notice it until i took the car out on my usual test spot, and hit a corner and had to ponder why it was so much more challenging to hold on the wheel! lol . It was because we were going that much faster. Snuck up on me.

There is turbo lag, just like with any turbo... But the powerband is much more linear than i thought. It doesnt all come in one big punch. So if you'[re on the fence - if you want the one big punch, and dont care about hanging on the boost to redline - stay with stage 2... Otherwise, upgrade away!

Anywho, thats by non-technical review of how she feels.

UPDATE: Keep scrolling through the pages to see my updated results with my new tune. 347 whp!

Last edited by jasejase; 10-25-2012 at 07:07 AM.. Reason: UPDATED TUNE!
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