Making every turn matters, and proving that power always relies upon control is what Turn One Steering is all about. To emphasize this point, we sat down for a chat with Mark Kawiecki, marketing manager for the Michigan-based brand, to discuss the difference between the brand’s three grades of steering pumps.
First of all, Mark is quick to emphasize that fitting a pump to the vehicle setup and driving conditions at hand is crucial to any build. For instance, Turn One’s Street Series Pumps are an ideal option for cruising or show machines with either mildly modified factory settings, and either stock or slightly larger wheels and tires.
Universal Street Pump Specs:
- True GM Type II pump
- Comes w/ GM metric O-ring pressure fitting and AN-10 inlet fitting
- 1200 psi factory pressure capacity
- 2.5 -gpm factory flow rate
- Billet 6 3/8-inch Corvette pulley compatible
- Intended to be used with Turn One aluminum reservoir
The brand’s HP1 pump on the other gear, is a stage one product, with upgraded internals that have been built for increased efficiency, reducing fluid temps, and conserving horsepower. It’s a solid middle-of-the-track solution, and supports an impressive amount of upgradable options and mounting locations.
HP1 Pump Specs:
- 1500 psi pressure capacity
- 3.0-gpm flow rate
- Standard with AN-10 return fitting
- Lightweight aluminum housing
- Billet 6 3/8-inch Corvette pulley compatible
- Intended to be used with Turn One aluminum reservoir
Since pressure output can be heavily influenced by wide, ultra-grippy tires, the power steering system is going to need to exert an immense amount of pressure. This is where the top-end HP2 Pump from Turn One Steering comes into play, with a higher-pressure capacity output being the most notable difference between it and the HP1 unit.
And while all pumps within the company’s portfolio are bearing-style pumps, only the HP2 pump benefits from a driveshaft bearing upgrade. So if you are thinking about getting into competitive racing or upgrading your wheel and tire setup, HP2 is the easy “future-proof solution” for those looking to do things right the first time.
However, as Mark admits, there is only a $30-$70 cost increase for upgrading to an HP2 unit, and that due to this impressive price point, Turn One typically sells 5 to 6 HP2 units for every HP1 sale. As with all Turn One power steering pumps, both the HP2 Pump and its less hardcore siblings are all 100-percent guaranteed to be brand-new and hand-built in the USA. They are also individually dyno tested for quality control purposes.
HP2 Pump Specs:
- 1800 psi standard (custom pressure capacities available)
- 3.0-gpm standard (custom flow rates available for swaps and retrofits)
- Utilizes either GM O-ring or AN-6 pressure connection
- High-temperature SKF bearing upgrade
- Optional driveshaft upgrade for supercharged engines
- Lightweight aluminum housing
- Billet 6 3/8-inch Corvette pulley compatible
- Intended to be used with Turn One aluminum reservoir