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Fuel Maps & ECU Chipping - Hotwire Optimax Varient.

(Far more important than you might have considered!)

We have supplied literally thousands of Mark Adams bespoke V8 EFi Chips thus you can be assured of gaining all you need without the extra hassle of visiting a rolling road,

What is this listing for?

This listing is for the Optimax variant ECU chip. Suitable for the 14CUX Hotwire EFi system found on TVR's, Morgans, Land Rovers, Range Rovers and many kit cars. If you have the later Sagem (Gem's) EFi system please visit our shop for the correct chips.

Fuel Mapping.

Full control of the fuel map is contained within this innocent looking EPROM (Chip). It contains all the fuelling, RPM & fuelling Load Map information, and instructions required to run your engine.
To understand better how it works you must understand that, although your engine needs to run at varying rpm, it also has an extra factor to be considered - Engine Load. This can be considered as the difference between part-throttle cruising or full-throttle accelerating or pulling.

Further advantages.

When you are on part-throttle cruise driving mode, with Optimax or Tornado the fuel mixture will run slightly lean, giving you the best possible economy.
As you demand higher & higher load performance, such as under hard acceleration and load pulling, the Optimax and Tornado will allow it to run richer, and give you the best possible performance both without losing sight of efficiency.

Over the Top. Not arf!!

With over 120 load/rpm adjustments, the Optimax and Tornado are streets ahead of any competition. (most of which just target more bhp with more fuel dumped in at high rpm).

Why Re-Chip anyway?

• As an essential basic upgrade for engine economy and efficiency;
• When converting to a large capacity and/or performance tuning;
• Seeking maximum engine economy/efficiency;
• Lowering engine temperature & avoiding block cracking;

As there are also a few variations of this ECU type, we will need to know what family type yours is.

All Rover V8 Hotwire type systems need re-chipping, especially with any engine changes, upgrades, or engine swap outs. Apart from the obvious gains as detailed above, any engine upgrades you use on the Hotwire Engine will gain you nothing without having the appropriate fuel map changes. Even something as simple as a K&N filter upgrade will further strain the engine's fuelling, and losses are more likely than gains.

Please do not Confuse Optimax & Tornado Chips with inferior products seeking only bigger numbers (BHP) at the high rpm range, and sacrificing important low-end and mid-range power, as this is where 98% of fast road and cruise driving is occurring.

Whatever the reason, re-chipping should be treated as essential for all capacity or performance upgrades when made to the 3.9 / 4.2. (Hotwire) type engines. Apart from the obvious need to re-chip your ECU when increasing engine capacity, the following are some of the superb advantages obtainable.

Dealing with Fuel Maps.

• The Chip that controls the engine's fuel map is easily located and replaced;
• The Optimax or Tornado chips will add substantial increases in economy, throttle response and pulling power to your vehicle, and in most cases are the ideal upgrade;
• If, however, your needs are for ultimate power (without losing sight of efficiency) then the Tornado ECU chip would be more suitable. Whichever one you choose, you are going to be pleasantly surprised by the huge gains achieved by such a quick and simple upgrade. No matter how good your engineer or local garage, there is no way the best can be got from your engine unless the ECU fuel map is considered and changed to suit.

Chip Identification and replacement details.

All the following information assumes you have the Hot Wire injection system.

Please check if your ECU type is 14CU, or 14CUX (14CU is normally American export only and currently cannot be chipped)

To be able to supply the correct family of chip we will need to know some information from inside the ECU itself. Inside there is a small chip with MVA**** on it. We need to know the rest of the numbers and letter.

If your ECU does not have a socket at present, we can supply one of these free of charge. (fitting service available, please enquire).

Fully Tested for almost all V8 engine needs.

Our Tornado & Optimax ECU Chips have been extensively developed on vehicles under exacting Rolling Road conditions, thus ensuring perfect fueling throughout the rev range of almost any V8 Engine, and should be seriously considered as an important part of your vehicle's needs.

The following are just a few advantages and adjustments you can expect to have gone into all our ECU Chip upgrades

• Engine Temperature Map: Decreased cold and warm up fuelling to reduce the risk of flooding.
• Throttle Response: Quicker throttle response.
• Airflow Meter Scaling: Vital for good drivability and fuel economy, especially on large capacity engines. Allows correct control of part throttle fuelling.
• Re-profiled Fuel Map: Provides good fuel economy on part throttle, and allows engine to rev more freely, (standard profile reduces fueling heavily after 4000rpm).
• Idle Speed: Lifted to give smoother idle.
• Throttle overrun braking: Increased engine braking.
• Removal of road speed limit: Standard 113mph road speed limit removed (Range Rover only).
• Cranking Fuel: Reduced risk of flooding, starting delay to allow oil pressure to build before starting

Which chip should I go for?

Optimax

• 3.5 engines standard or mildly tuned.
• 3.9 engines standard or mildly tuned.

Tornado (Please see our other auction)

• 3.9 modified engines
• 4.2 standard or modified. engines
• 4.6 5.0 or other Highest specification engine.

Included in the auction is;

• 1 Mark Adams dedicated fuel map chip (EPROM chip).
• 1 Decoder socket to protect our software avoiding licence charges
• Installation is simple but we also supply simple Colour fitting instructions. 
• Our unique 3 month return to base 'No Quibble' Warenty.
  
• For fitting gems chips we offer also video instructions
  
  

FAQ Zone

• Your postage is not the lowest. Why is this?
  When you consider the construction type of this product and the need for appropriate safe packaging, together with the choice of delivery company, you will see that we will do all that is possible to ensure, that not only your package arrives on time but  in great shape.
  We could make delivery a smidgen cheaper, but no one would ever thank us if their purchase, no matter how heavy or fragile, arrived crushed, split, fragmented, late or even not at all. What's more, insured against any possible unfortunate event too. Thus our postage quotes represent far more than just the cheapest postage possible.
  
  
• Is it possible to Visit Rpi. for collection, further information or for parts to be fitted.
  For sure we have many customers from all over the world, that not only visit us but enjoy our unique hospitality, as well as our in-house workshop facilities that can cater for anything from major rebuilds, restorations, engine fittings and LPG conversions. As well as drop in chipping and ignition system upgrades. Holly our Engine builder (Head Chef maybe) can always find the time to show you around the world of V8 Rover engines and explain all variants and upgrades.
  
  
• Is Your location in 'North Norfolk', a great place to visit!
  No matter where you are located in the world a visit to us and our area, whether for the day, a week or even for a weekend in itself can be very, very rewarding, We can happily offer you information and  assistance for accommodation ranging from our favourite  traditional eighteenth century Norfolk country house Hotel, "The Norfolk Mead", or Modern Hotels, Norwich central Hotels or from a chosen range of local bed and breakfast (B&B) establishments. 
  We can also supply information links to ferry and airports to help, what's more as I have a deep regard for all things local to Norfolk you can find a wealth of local scenic information on a web site called scenic norfolk this is a unique local web site with some content supplied by myself.
  
  
• Whats more, Now with online 'You-Tube'. videos too.
  To help give you the real feel of all we can offer, what we can achieve and the standards we aspire too we now have a user account called RPiengineering on 'You-Tube' for your enlightenment and to afford you a unique, real time snapshot of what you can expect from us. What's more, to see, feel  and genuinely experience the passion we have for what we do and what we can do for your V8.

(See our other eBay items)

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