427 LSx w/ Big Borg Warner Turbo - 2007 Trailblazer SS

Check out this 2007 Trailblazer SS we had the pleasure of tuning recently. Forged 427 LSx bottom end, Brodix heads, Turbo Cam, Borg Warner Turbo, Holley Hi-Ram Intake, Built 4l80e Transmission, Twin Walbro 450lph Fuel Pumps, Injector Dynamics 1300cc Fuel Injectors just to name a few modifications. Tuned on the stock ECU using HP Tuners on our AWD Mustang Dyno. We were able to make 830hp and 1032tq on 93 octane! This combo has the potential to make a lot more power in the future with a few changes but it is leaving with a solid and reliable tune.
Want more performance out of your ride?!?! Give us a call at 864-603-2010 and find out how!!!
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SD Racing... no tricks... no gimmicks... no number fudging... just RESULTS!!!

[@Ballen1182]

For the first time ever, I decided to search lsx trailblazer ss and must say the results did not disappoint 👍

[@sdracingllc1594]

Thank you!

[@CarolinaPerformance]

Glad to see people are still making modifications to these. Sleepers for sure

[@sdracingllc1594]

It will surprise real quick. Has a very quiet exhaust on it with a 4" cutout at the downpipe. You'll never know what this has in it until he gets on the gas.

[@daveerrington5166]

Sick setup. I would love my Envoy denali like this

[@j.ballsdeep420]

Love this idea

[@Thefabforums]

tthats a good looking ride

[@sdracingllc1594]

Thanks!

[@coled91]

Loving the longer videos!

[@sdracingllc1594]

Thank you!

[@Ballen1182]

More torque than the duramax 6.6! Woooooo wee!

[@vanteg9834]

I feel like he can definitely make 1000 judging by the block.

[@sdracingllc1594]

Absolutely. It needs a different cam and a tighter converter to achieve it though.

[@diytypeofguy6502]

@@sdracingllc1594 2500 stall maybe?

[@sdracingllc1594]

@@diytypeofguy6502 stall speed was fine, the converter was just too loose.

[@alsend3420]

👀 ⚡

[@juan1518]

Hello, you would say the first step in tuning a 2007 trailblazer 4.2l 6c. Would it be a reprogramming? By the way, excellent video.

[@sdracingllc1594]

There really isn't much in the way you can squeeze out performance with the I6 engine. Thank you

[@juan1518]

@@sdracingllc1594 I understand. If I put a header and a high flow filter on it you would say it would improve a little.

[@sdracingllc1594]

@@juan1518 it might, but I have no experience with it.

[@yuhghost6220]

What type of Intercooler does it have? I see he still has his fog lights

[@sdracingllc1594]

I am not sure, I can ask when he comes back in a few weeks... though he has decided to change from turbo to supercharger.

[@yuhghost6220]

@@sdracingllc1594 okay thanks

[@CAULEYJR]

Do you know which brodix heads?

[@sdracingllc1594]

I do not know specifically, the customer put this together himself.

[@xrunner800]

Don't those trucks have the 4l60?

[@sdracingllc1594]

This one has a built 4l80

[@Silvertungdvl74]

Where y’all located?

[@sdracingllc1594]

Greenville SC

[@FrogsGarage]

Good numbers but it’s not actually making that much torque it’s skewed by the flash of the converter. Would do same thing if u start the pull and drop the clutch in a manual it makes it spike. I normally lock the converter before starting the pull and keep it locked using the HpTuners Scanner control. Second option would be don’t start the dyno pull start till after you go full throttle and hit the converter flash speed. But still good Hp numbers

[@watsonz28tw]

Why more torque than horsepower?

[@sdracingllc1594]

He had a very loose converter and the cam was spec'd for quick spool. So he lost a ton of potential on the top end.