HTR Performance Engineering

07/14/2026

Here is the new E94 ECU to initially run the LS6 motor for the 2027 Stingray and Grandsport. This new ECU is very powerful and very fast to handle the recent changes to the new motors timing and fuel controls. Most likely will be in Camaro and truck variants. Let’s go! #2027

07/08/2026

Timing is everything and this recently drafted article that was in the que timed with HP Tuners public announcement of releasing calibration support for the C8's elusive Dual Clutch Transmission. Check out this two part tech feature on the TR-9080's history and functions as hosted on LSX Magazine! More calibration tech to follow....

Discover how the C8 Corvette's TREMEC TR-9080 dual-clutch transmission delivers sub-100ms shifts and world-class performance.

06/29/2026

Contributing article on how to properly size port fuel injectors. Includes the physics and math behind one of the most important selections when building your high performance engine. More great tech from LSX Magazine

Size fuel injectors the right way. Learn how BSFC, duty cycle, fuel type, and boost determine injector flow for LS engines.

06/23/2026

Can't argue when the math lines up with a validation. This is a 2022 C8 with a 416 cubic inch motor I had built "all motor". Airflow was up 14 gr/sec at 4000 rpms and 30-44 gr/sec at 5500-6400 rpms after swapping from a aftermarket aluminum intake to the Performance Design Carbon PTr intake. These same results I have duplicated numerous times in the same areas which surely indicates areas where airflow is stalling. Great job Caleb Newman for truly understanding airflow tuning vs just machining. Upcoming tech article dropping soon at LSX Magazine on a deep dive into intake manifold designs.

06/15/2026

Just posted on LSX Magazine this article drafted on cross plane vs flat plane crank engines. Some cool facts and with a emphasis on the LT6 and LT7 engines.

Discover how flat-plane and cross-plane V8s shape the LT6, LT7, and Cadillac race engines that define GM performance.

06/10/2026

Spent some time with the team at Cicio Performance as they wrapped up one of there Twin Turbocharged Z06 packages. Great guys doing a nice job on bumping the LT6 into some power that makes sense!

The Cicio Performance twin-turbo C800 package transforms the C8 Z06, adding nearly 200 whp and 200 lb./ft. on stock LT6 hardware.

05/22/2026

As a calibrator for many years its great to see others pushing the behind the scenes with the back side of the code. Just setup a customers C7Z with there Launch Control patch upgrade and it works great. Also need to compliment Ryan at Hex2HP for tying it all together. Great job guys! Gwatney Performance Innovation

Advanced 2-Step Launch/RPM Limiter ECM patch — software only, no external hardware needed Pedal-activated: works with clutch (manual) or brake (automatic) + Cruise Set button to arm Up to 3 RPM limiter set points tied to drive modes (Tour, Sport, Track for cars; Normal, Tow/Haul, Grade Brake Disab...

05/21/2026

Low Speed Pre-Ignition or LSPI is a haunting cylinder event that is responsible for killing Direct Injection engines silently. Recent article written for LSX Magazine walks through the how, why and what's for those trying to get ahead of this!

LT engines make incredible power thanks to GDI, but that same technology also creates the unwanted side effect of Low-Speed Pre-Ignition.

05/17/2026

No compromising on your valvetrain parts. This solid roller LT4 build singing to 7800 rpms with no interruptions with a well designed Manton setup. Manton Pushrods

05/05/2026

72 years of the 4.40" bore spacing small block and that architecture is still delivering. Check out some of the details to what is behind this Generation 6 small block!

The 6.7L LS6 V8 in the 2027 Corvette delivers 535 horsepower and 520 lb./ft. of torque, making it GM’s most advanced Small Block yet.