HTR Performance Engineering

HTR Performance Engineering

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Engine Development, Engine Management Calibrations and Track Side Assistance for Late Model GM and dedicated race cars.

Mainline Hub Dyno Facility
Remote Calibration Support
www.htrperformance.com Redline Motorsports is a full service high performance facility that specializes in high end late model GM Performance. In house we deal with engine building, custom fabrication and all aspects of performance upgrades!

GPI - Gen V LT 2-Step / Launch RPM Limiter Custom ECM Patch - Car & Truck E92/E92A Applications (GPI-2STEP-GENV) - Gwatney Performance 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

GPI - Gen V LT 2-Step / Launch RPM Limiter Custom ECM Patch - Car & Truck E92/E92A Applications (GPI-2STEP-GENV) - Gwatney Performance 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...

Low-Speed Pre-Ignition, GDI Technology, and the GM LT Engine 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!

Low-Speed Pre-Ignition, GDI Technology, and the GM LT Engine 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

LS6 Revolution: GM’s Most Advanced Small Block Yet 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!

LS6 Revolution: GM’s Most Advanced Small Block Yet 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.

DSX Atlas Controller: Fueling The Future Of Big Horsepower 04/29/2026

Enlightening article assembled on Direct Injection and Port Fuel injection working in harmony in the aftermarket. Certainly a well thought out system from DSX Tuning to address the shortcomings of OEM Direct Injection.

DSX Atlas Controller: Fueling The Future Of Big Horsepower The Atlas Port Fuel Controller seamlessly supplements direct injection with port-injected fuel in real time using factory ECU data.

04/21/2026

The team at Katech Engineering is seeking a team player to join the engine development/build team! Very solid company with a big agenda. Skilled Machinist looking for an opportunity to work with a pro team… get on board.

Championship-level performance starts with the right people!

We’re looking for skilled automotive machinists to produce precision components used in championship-winning engines.

Join a team where your skills matter and your work shows up on track. 🏁

Go to https://katechengines.com/ft-2436-careers for more info.

FuelTech's FTSPARK GEN3 MAX2000 And PRO HV Injector Driver 04/19/2026

Great article in Dragzine.com

Just when you think a product can't get better it does. Two new controllers from FuelTech USA with there new High Voltage Injector Driver and the new GEN3 FT Spark. Its a constant battle to control massive port fuel injectors due to there mechanical "laziness". The new HV Driver can drive the 820 and 1020 injectors very close to a high impedance injector mannerism. This same driver also can run the high amperage style injectors used for Direct Injection engines. The GEN3 FT Spark is focused on igniting all the fuel in the chamber on ultra high performance engines where cylinder pressures are very high and a cylinder loaded with alcohol. More in the article!

FuelTech's FTSPARK GEN3 MAX2000 And PRO HV Injector Driver Discover how FuelTech's driver boxes enhance fuel and spark control for powerful EFI engines.

04/11/2026

L8T iron short block final assembled. billet crankshaft, 2KLT pistons and a set of GRP aluminum rods.

04/06/2026

Only one way to know chamber size for sure. Check it!

177. How Tuning Evolved, Modern EFI and the history of HTR Performance 01/17/2026

Good time at PRI with the guys from MinnOxide.

177. How Tuning Evolved, Modern EFI and the history of HTR Performance Howard Tanner of HTR Performance joins us to share his history from the early days of tuning vehicles and how its evolved throughout the years.Take your buil...

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Telephone

Address


241 Mowen Drive
Cu***ng, GA
30542

Opening Hours

Monday 8am - 5pm
Tuesday 8am - 5pm
Wednesday 8am - 5pm
Thursday 8am - 5pm
Friday 8am - 5pm