Heatshield Gaskets

Honda - Available for B16A/B18C5, D16Z, B18C, B18A/B18B, H22A, all K-Series models including new 2007 model of Civic Type R, s2000

Mitsubishi - Available for the 90-94 & 95-99 Eclipse Turbo, and Lancer EVO.

Nissan - Available for the Nissan Sentra SER Spec-V.

Hyundai - Available for the Tuburon V6.

Subaru - Available for the WRX.

The Hondata Heatshield manual is available online.

Hondata have developed a special high temperature insulating gasket which replaces the stock intake gasket. This and bypassing several heat sources significantly reduces the transfer of heat from the head to the intake and incoming air giving you up to 5% more power.

Turbocharged cars often use aluminium intercooler to cool the air compressed by the turbo. The intake manifold is also made of aluminium but because it is heated by the head from combustion and coolant, works in reverse to an intercooler by heating the intake air by as much as 50 degrees C.

Fact: For every 3.3 degrees C rise in intake temperature, air density drops 1%. The hotter the air, the less fuel the computer injects to compensate for reduced oxygen. HondaLogger data logging software has enabled us to measure intake air temperature under varied driving conditions.

Around town, testing has shown an average drop of around 10 degrees C which is good for around 3% power increase. Remember though that 3% power increase is difficult to feel. You'd feel a great change in performance getting rid of that passenger. In certain conditions a 30 degrees C drop has been measured.

The Honda manifold is heated in up to 5 places. From the head, the interior heating takeoff hose, the cold idle valve, the idle control valve and the throttle body heater. The Heatshield gasket kit contains an insulating gasket, and installation instruction. A race only version with the thermostat bypass blocked is also available.

The graph above shows the results of installing the Heatshield gasket and bypassing the throttle body heading and idle control valve heating. If you examine a Type R intake manifold you will find that most sources of water heating are removed. Further temperature drops are possible when in addition the interior heating hose is blocked. What the graph shows, is that as you open the throttle, the intake temperature drops slowly as it cools the intake. When you descend a hill with the throttle closed or drive around town on a light throttle the temperature climbs quickly. It takes a good 15-20 seconds for the temperature to drop again when you open the throttle. So if you start your ¼ mile drag with a hot intake manifold - you are only starting to develop maximum power near the end of the run when the intake has been cooled. The Heatshield gasket gives you 4-5% more power immediately by lowering temperature.

Price £59 including VAT (£50.21 excl VAT for customers outside EEC)

s300 Overview The s300 is a plug in module to the factory Honda Engine Computer (ECU) which vastly expands the capabilities of the factory ECU.  Forced induction, datalogging, real time updating of parameters, engine protection are but a few of the s300 features. S300 System Price Description £379 incl VAT (£322.55 excl VAT) s300 with all features and software Features Main features: Fits inside the ECU Built on the proven s100/s200 code base USB connection for speed and compatibility SManager Windows based software for parameter & table editing, calibration uploading and datalogging. Real-time updating of ECU Built in calibrations for common engine combinations Built in datalogging to a laptop On board datalogging memory (2 MB memory, 20-60 minutes datalogging) Adjustment for different sized injectors, with overall fuel trim. Configurable for any MAP sensor (to at 5 Bar and above) TPS based table lookup for ITBs Engine protection from over boost and over temperature. Expanded fuel and ignition tables, both in rpm and load, to 60 lbs boost and 11,000 rpm (these are not the upper limits) Launch control with anti-lag Full throttle shift Two multi purpose outputs for nitrous control or similar Lambda tracing (with a wideband o2 sensor) SManager editing software features: High and low speed 24 x 20 ignition and fuel tables for correct VTEC tuning Injector size fuel trim Fuel trim for starting, throttle tip in and individual cylinder trim Rev limiter with fuel cut or fuel and ignition cut Launch control with anti-lag Full throttle shift Adjustable VTEC window with load and throttle control Secondary intake runner control Adjustable idle speed MAP sensor type and calibration Adjustable boost cut with hot and cold settings Shift light Closed loop control Air temperature compensation Water temperature compensation Fuel and ignition correction based on gear A/C shutoff conditions Closed loop Two general purpose outputs for nitrous control, dual boost control or similar On board datalogging trigger conditions The s300 uses different connecting pins in the ECU from the s100/s200, and also has a slot cut in the side for the USB connector, so the ECU must be modified for use with the s300.  The s300 is made to fit in a full frame ECU case (US and most markets), so will not fit in a JDM ECU case. USB Connection The s300 uses a high speed USB connection for both programming calibrations and datalogging.  No more USB/serial connectors! Real-time Update The s300 can be updated in real-time with the engine running without affecting the operation of the vehicle.  This means that calibrations and changes can be uploaded to the ECU very quickly (2 seconds for a new calibration, a fraction of a second for anything else), without interrupting the operation of the engine.  Changes made in the SManager software are uploaded to the ECU instantly and you can see the effect immediately.  The s300 does not use an EEPROM or equivalent, so you never need to open the ECU to change chips nor 'burn' ROMs. No EPROM programmer is necessary - you just need a laptop with USB port. Datalogging The s300 has datalogging to the SManager software built in via the USB port. Using a laptop the various ECU sensors can be datalogged, viewed, graphed and saved for later analysis.  Additionally the s300 has on board flash memory which allows a datalog recordings to be made without a laptop, for later access and download to a laptop.  Multiple recordings can be made and stored in the s300 for a total of around 40 minutes of total datalogging time.  An external switch can be used to start and stop recordings, or engine conditions can trigger recording.  For instance in a drag race, the s300 can be set to start recording once the rpm is bought up to near launch rpm and automatically stop once past the traps and the rpm drops below a certain level. MAP Sensor Compatibility Any linear MAP sensor can be used, using a scalar and offset to translate the MAP sensor characteristics into pressure.  Popular MAP sensor settings are built in for ease of setup.  To do this you will need the map sensor calibration numbers from the manufacturer of the sensor.