Ashley Powers - ASHSPEC

The Ash-SPEC ECU upgrade has become well known in the Z32 community for offering reliable power with factory drivability while maintaining factory safety features. Safely increase your Z's power and torque output with increased boost levels and a properly configured program for your car's modifications.

Upgrading of the ECU consists of removal of the OEM EPROM chip containing the ECUs program, installation of an EPROM socket for ease of chip replacement, and installation and testing of a new Ash-SPEC EPROM. 16-bit ECU upgrades (shown above) require a custom daughterboard to contain the new performance program.

Upgrades are available for both NA and TT models, 5speed or automatic, and vehicles will pass even the most stringent California emissions tests - guaranteed!

The Engine Control Unit (ECU) is a a small computer which monitors all engine sensors and controls all engine functions for fuel delivery, ignition timing, rev limiter, speed limiter, valve timing control and emissions control systems. This computer operates based on a set of values of which Nissan generated in their R&D process of the powerplant, however, they left a lot to be desired by the enthusiast. A new program catered to your vehicle's modifications is generated and installed. Programming which allows for safe running of higher boost levels while maintaining "safety mode" configurations allow you to improve performance in a reliable fashion.

The Ash-SPEC ECU upgrades were developed using the ZEMulator to finely tune operating engine parameters in both street and dyno conditions using a wideband O2 sensor setup. The utmost care has been taken in the development of these programs to ensure that the program you receive has been extensively tested to ensure performance, reliability, and safety. The same electronics and methods used to produce dynocharts like this were also used to develop these programs.

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PROGRAM CLASS SELECTION:
Due to variations in fuel quality throughout the country, we have constructed a set of programs specifically tailored for anything less than 93-octane fuel, minimum of 91 octane. These programs are called the "C-CLASS" programs. If you have 93 octane fuel available to you, the "A-CLASS" programming will be your optimal choice of program type as it will take advantage of the greater detonation resistance of this higher quality fuel. With the C-CLASS programming you can run higher octane fuel without any issues - it is just designed to allow safe engine operation with the lower octane fuels.

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NEW! Integrated Boost Controller:
We have developed an electronic integrated boost controller for TwinTurbo ECUs that utilizes the OEM boost control solenoids and retains the factory safety boost feature! This setup has a remote adjustment knob that allows control over the boost pressure the turbochargers produce. This option is available for those who still have the OEM boost control system in the vehicle. This option is available for an additional $75 and can be found in the Product Options drop-down menu below. For those of you who have done an NA to TT conversion and do not have the OEM boost solenoids or do not have a twinturbo ECU, please contact us for ordering. We have boost solenoids available and can upgrade your non-turbo ECU to operate the boost solenoids for an additional fee.

PLEASE NOTE THE FOLLOWING:
When shipping your ECU, please remove the mounting bracket that holds the unit into the vehicle. This bracket makes for bulky packaging, which ends up costing more to ship. We strongly recommend using USPS Express Shipping as well since they arrive to us earlier in the day than UPS or Fed-Ex. USPS has a cushion mailer pack, 7" X 10" that the ECU fits perfectly inside of - put your ECU in this packaging and then put this into the Express Flat-Rate mailer. Be sure to add an additional $100 to the insured value in the event the package is lost or damaged.

Our location is guaranteed overnight delivery from 95% of the continential US and will cost you about half of what UPS or FedEx will charge for overnight service. We have not had a single unit damaged or lost in the several hundred of these that have been shipped back to customers via USPS. Most cases, we can get USPS Express deliveries taken care of and return shipped on the same day.

Please affix a note to the ECU itself containing your contact information, vehicle information, modification information, and whether you need boost jets or not. This will ensure that the ECU will be upgraded in a timely and accurate manner and improve chances that it will arrive to you sooner. Printing out a copy of the Paypal sales receipt will suffice as long as it contains all of this information.

Shipping fees are added to prices at time of payment. ECUs are return shipped via USPS Express delivery which is an overnight service. Shipping fee is $20.