Porsche 930 Turbo (911) 1978-1989 DO88 Performance ‘Long Neck’ Intercooler

Description

do88 Performance Intercooler Long-Neck, Porsche 911 Turbo (930)

To fit: Porsche 911 (930) Turbo 1978 to 1989 with 3.3 Litre engine

Taking Performance to the Next Level while Adding Elegance: The do88 Long-Neck Intercooler kit for Porsche 930 Turbo!

Key features

• Huge cooling improvements while adding 80s retro look.
• Long-Neck Style Intercooler features a direct connection to the throttle body, eliminating the original air bypass valve system.
• Probably the most comprehensive and most thought through intercooler kit for the Porsche 930 Turbo on the market. Everything is included for easy installation.
• No cutting or modifications necessary! Your car can be returned to stock condition at any time.
• Fits with OE air filter box! Does not require any modifications.
• Fits together with the AC-condenser- No AC removal required.
• Fits together with the rear window wiper motor.
• Removes the huge OE Diverter valve and replaces it with a modern GFB diverter valve.
• Parts included to make it possible to install this kit together with both T26 (OE) and T27 (upgrade) turbos.
• Fits directly with all original hoses and sensor connections.
• Maintains engine bays classic elegance without compromise.
• Enhances airflow by 11%, improving engine efficiency.
• Features an attractive powder-coated finish.

Background

Enthusiasts of the classic Porsche 930 Turbo aim to tune their cars with style, preserving the original aesthetics that define this iconic sports car. The intercooler, a highly visible component in the engine bay, and sadly the appearance has often been a point of compromise for most aftermarket units. Many aftermarket options with their boxy looking sheet metal tanks detract from the car’s elegance.

Our solution

When designing our intercooler for the Porsche 930 Turbo, do88 aimed to retain the classic 80s appearance while significantly improving the performance. Our intercooler promises a substantial increase in cooling efficiency and a reduction in pressure drop, out-performing both the original and most aftermarket alternatives. We chose a Bar & Plate core known for its exceptional performance. The 90mm thick core with its densely packed fins ensures effective heat transfer and reduction in pressure drop.

To ensure compatibility with both T26 (OE) and T27 (upgrade) turbos, we’ve included two silicone hoses, replacing the original aluminum charge pipe between the turbo and intercooler inlet.

The 930 Turbo’s large, heavy and slow diverter valve (blow off) system is positioned between the intercooler and throttle body, and its wearable components often cause common driveability issues and sluggish engine response. To address this, we designed a “Long-Neck” intercooler that removes the OE diverter valve. A Long-Neck intercooler design connects the intercooler outlet directly to the throttle body. This is a more efficient design, also used in the 930-S and 964 Turbo models. In our kit we replace the bulky diverter valve with a modern GFB diverter valve for better reliability and performance.

Our intercooler is also designed to fit together with the original AC condenser mounted in the deck lid, so no AC removal is required.

This intercooler is an ideal choice for high-power builds, meticulously designed to be mounted without modifying your car. All hardware, such as brackets, screws, and hoses, is included in this kit.

Installation

Our intercooler is designed for a direct fit in all Porsche 930 3,3 Turbos, making installation straightforward. Given the hand-built nature of these cars, minor adjustments may in some cases be necessary to achieve the perfect fit. However, these adjustments are minimal, ensuring that owners can upgrade their cooling system without compromising the cars classic appearance or the integrity of the installation process.

ICM-470 Fitting Instructions

DO88 ref: do88-kit145S (ref only)
OEM Part number, (for reference only): 93011023307, 93011015804, 93011019201, 93011022302, 93011013702, 93011015801, 93011001803, 93011017101, 99923900940