Get Instant Throttle Response and power gains with a new ITB set up from AT Power

MSRP: $4500

Are you looking to get instant throttle response from your aircooled Porsche? Even though the 964 and 993 Porsche's of this generation used fuel injection technology, there is much more power to be extracted from an ITB set up. The company AT Power has engineered a bolt on system which allows for a direct mounted ITB application with no manifold required. To get even more power out of a system like this, an aftermarket ECU set up is recommended. All of the information is posted below, as well as Dyno numbers. This is sure to be a popular upgrade for those who still love the aircooled Porsche models!

Porsche 993 45mm Throttle Bodies

These Direct-to-Head Porsche 993 45mm Throttle Bodies are port matched with a round throttle plate. This is a direct mounting to the cylinder head so no additional manifold is required. These throttle bodies feature round, 'shaftless' and knife-edged butterflies for improved airflow & performance and with the throttle blade very close to the inlet valve the engine response is significantly improved.

Delivered fully assembled, made from Billet aluminium, with a Billet Aluminium Fuel Rail, Choice of Inlet Lengths and calibrated for your choice of TPS. Engine management is the only additional part required to achieve significant power gains. Our Linkage setup allows you to connect directly to the existing OEM throttle cable linkage.

Throttle Dynograph Against Competitor Product Download

Comparison is between two identical stock Porsche euro spec 3.0 liter engines. Each motor also has 1.5 inch headers and racing mufflers. Both engines have the same fuel injection system and ecu. One has a reputable aftermarket throttle body system with 46mm diameter shaft butterfly. The other contains the AT Power designed throttle body system with 42mm shaft-less butterfly. Both runs were done in same ambient conditions on the same wheel dyno. All other specs on the cars are identical.'

 

How much is involved in installing a setup like this? Do you need to switch to something like Motec for engine management?