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BNR GTX14 Turbocharger Upgrade

30620 Views 51 Replies 30 Participants Last post by  Knapman
Not satisfied with simply holding the stock turbo 1.4T world record with 196WHP and 259WTQ (race fuel, minor bolt ons, BNR Tune), we've been tinkering for a while on a bigger wheel turbo upgrade.

Starting with a brand new core from GM, we machine out the compressor housing to accept our all new billet wheel, featuring the latest aero technologies and laser balanced to 200,000RPM. Initial testing has yielded just over 200WHP on 91 octane fuel. We estimate 220-230WHP or more capable from E85 or race fuel, but have not finalized testing on different fuels yet.

Look for this upgrade to be available in the next couple of weeks :)
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Sounds like 52-55lb injectors may need to be looked into. I vote for Fuel Injector Clinic. Used to love their injectors on my DSMs.
 

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No cores. Factory brand new turbochargers with the upgrade performed is how they'll be sold.

These are basically ready to go as far as the turbocharger development is considered. We're working now on using a new injector for better spray pattern and to be able to push E85 with this turbo. The green 42s are at 80% on 91 octane. We did make 201WHP/250WTQ on 91 with this turbo, at a mild 21psi.

This excites me, will we have to upgrade the exhaust or will the stock exhaust still be alright?
 

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I'll wait for Jerry to post his news release on here. But he posted the pricing details on Facebook a little while ago. Take off to his website to order one. I have a few questions before I drop some money on this.

And after this upgrade, he should be working on a big brake kit. Lol. I have enough trouble stopping with just the tune. We need something with 12-12.5" rotors. And I don't want some F-Body calipers on my Cruze.
 

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Can this and the tune be tuned to work with boltons? (intake, exhaust) and a BOV?

Edit: also interested in whether the automatic can handle the torque.
The tune can definitely be tuned to work with boltons. Most of the testing he does, is with cars that have boltons. Intake, exhaust front mount, bigger injectors. Etc.
 
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I do have some questions.

1) How much CFM can this turbo push Auto part Carburetor Automotive engine part Engine
Auto part Rotor Wheel Rim Clutch part

2) At what RPM Do we get Full Boost
3) Do we need an exhaust ( cathback, downpipe etc)
4) Will the stock intercooler heatsock or whe need a frontmount.


Thanks to BNR for aswering ;)

IF THIS TURBO PRODUCES CLOSE TO A 13G TDOH4 TURBO (350 CFM) stock its around 18lb per minute, Vermont Tuning is around 22 lb per minute this turbo to get you around that power (230 hp) hs to be around 25 lb per minute atleast.

A tdoh4 13g from an Automatic 1g DSM or one from a Volvo that has the diverter valve integrated in the compresor housing wil net you even more power.

ex: Vermont tuning turbo 22lb per minutes a 13g tdoh4 will net you 28lb per minutes.
 
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