4-Cylinder Models SE/S4/S4s/S300/X180R/GT3


These are all the available chips for the 2.2 liter engine. Number 0 is the tamest and number 7 is the most aggressive.

Chip #0 to #3 can be used safely on stock engines.

All our chips can be safely used on bone stock engines. They will not do any harm. However if you also carry out some modifications to the engine in order to help engine breathing you will see a greater effect. For example, chip #6 will give around 330-350HP on a 100% healthy stock engine. With the addition of K&N filter, high flow cat and exhaust and bigger secondaries you will get between 350-400HP :o)

For Chip #7 we recommend to carry out some more modifications to the engine in order to help engine breathing and reduce air temperature. For example a big Charge Cooler, BOV, reflowed turbo, high flow cat ....

Chips #10 on are special variants for the 2.0 liter GT3, and the non Charge-cooled engines.

For an independent review of the most popular chips, please visit Lotus Esprit World, or just click on the link next to each chip description.

Each chip comes with a socket, to facilitate any future chip swap.

If you can't find the chip you need, or if you need help installing your chip, please see the services we offer, detailed at the bottom of this page.

NOTE : If you are reluctant to destroy your original chip, (i.e. cut all the pins), we can supply, FREE OF CHARGE (simply request it when ordering), a second chip containing the ORIGINAL factory code of your car, allowing you to easily revert back to a completely stock ECU at will, when reselling the car for example, or whatever.

CHIP UPGRADE : If you want to upgrade from one chip to another but don't need/wish to keep your old/previous chip, the new chip can be purchased at a reduced price. See the "Services" section further down this page for details.

MEMCAL ADAPTER : To make it easier to fit your chip into your ECU (no hazardous soldering involved, no need to cut pins...), we can supply an adapter board prefitted with your chip. The board makes it easy to plug/unplug your chip at will. To order your chip fitted to this adpater board, simply select the "Bundle" button of the desired chip.






0. original Lotus S4-code

Chip #0 € 135,–
Bundle € 174,–

 

- Will give stock 265/(285*)HP but is more refined compared to the old SE code
- This is a good choice for SE-owners who want to keep stock performance but benefit from the more refined code
(* = in overboost mode)


1. original Lotus S4s-MK5-code

Chip #1 € 135,–
Bundle € 174,–

 

- Will give about 290HP, but still has the 3k-stumble and the well known A/C-on-off-idle-problem
- Is suited as a performance upgrade for all SE/S4, gives more power and a bit more torque


2. improved S4s-MK5-code with the 3k stumble reduced Review

Chip #2 € 265,–
Bundle € 304,–

 

- Will also give about 290HP and a little more torque +5% in low and midrange
- Gives very good drivability and is a very good and safe performance upgrade for all SE/S4


3. High-Torque-S4s-code, Version 2.0 Review
Chip #3 € 350,–
Bundle € 389,–

  - Is based on the improved S4s-Mk5-code but with +18% torque (and similar top end power)
- Is a very good choice like the improved S4s but with that additional punch in low- and midrange
- New Version 2.0 gives better boost control in high boost regions conditions
- If you bought the previous version of the chip, an upgrade is available at reduced price (98 Euros), you will receive a brand new chip.


4. High-Performance code 310HP, Version 2.0 Review

Chip #4 € 390,–
Bundle € 429,–

 

- Is based on the improved S4s MK5 code
- Max. boost pressure 1.1 bar
- New Version 2.0 gives better boost control in high boost regions conditions
- If you bought the previous version of the chip, an upgrade is available at reduced price (98 Euros), you will receive a brand new chip.


5. High-Performance code 330HP, Version 2.0 Review

Chip #5 € 390,–
Bundle € 429,–

 

- Is based on the improved S4s Mk5 code
- Max. boost pressure 1.2 bar
- New Version 2.0 gives better boost control in high boost regions conditions
- If you bought the previous version of the chip, an upgrade is available at reduced price (98 Euros), you will receive a brand new chip.


6. Red-Race-code Review

Chip #6 € 390,–
Bundle € 429,–

 

- Special code based on the improved S4s-Mk5 code (#2)
- Max. boost up to 1.25 bar
- Raised redline


7. Blue race code

Chip #7 € 390,–
Bundle € 429,–

 

- Special code based on the S4s-Mk5 or Sport300
- More radical timing and fuelling than the red one
- Max. boost up to 1.25 bar
- Raised redline
- Best suited to engines with bigger injectors and/or higher fuel pressure and bigger turbo (= Sport300 setup)

 

 
10. High-Performance code 280HP for 2.0 liter GT3-engine, Version 2.0 Review

Chip #10 € 390,–
Bundle € 429,–

  - now based on the improved 2 litre S4s code
- Max. boost pressure 1.1 bar
- Greatly improved torque +10% and improved high end power
- For use with stock and slightly modified 2.0 liter engines


11. Red Race Code for 2.0 liter GT3-engine, Version 2.0 Review

Chip #11 € 390,–
Bundle € 429,–

  - now based on the improved 2 litre S4s code
- Max. boost pressure 1.25 bar
- Greatly improved torque and improved high end power
- For use with (slightly) modified 2.0 liter engines


 

 Switch

Chip switch € 890,–
Bundle € 935,–

 

Can't take a decision as to what chip you like best to run in your Esprit ? Ever dreamed of having them all and be able to change them instantly ?
Then this product is for you !! :o)
It is a switch board that contains several (eight) different programs.
Once installed, it will let you select your favorite chip most conveniently, just by using a small remote control placed in the cockpit, simplicity itself.
The remote control features a display that lets you know what chip you are using at any given time.
The Switch board is simply plugged into the ECU. Then, the remote control, with it's 2 meter long ribbon cable, is routed into the cockpit.
 
The switch comes fully programmed, ready to use, with the following P.U.K. chips:
 
0) "grand ma" program
1) Original Lotus S4s-MK5-code
2) Improved S4s-MK5-code with the 3k stumble reduced
3) High-Torque-S4s-code
4) High-Performance code 310HP
5) High-Performance code 330HP
6) Red-Race-code
7) Blue race code


Mode '0' ("Grand Ma") limits turbo boost to 0.65 Bar, therefore purposefully limiting the car's performance. This is useful for when you give the keys of your beloved Esprit say to your garage (or your kids!), and are a bit anxious as to what they might do to/with your baby. This mode will limit risks and bring you peace of mind ! ;o)

Warning : although the switch actually lets you change chips literally "on the fly", we would like to remind you that like everytime a chip is changed (generally speaking) or the ECU reset, said ECU needs to "re-learn" the engine, meaning optimum performance will not be reached until a short bedding-in period (30 miles) is completed.
So it is more suited to long term periods, say you switch to mode 6 before going on the track, then switch to mode 5 for road use in summer when roads are dry and warm etc, then switch to mode 2 for road use under wet or otherwise not ideal/"tricky" weather, then switch to mode 0 before dropping the car to the garage, etc.
If you wish to be able to increase performance for short periods, say for the odd 10 car overtaking challenge, then back to normal performance, we suggest the use of our Electronic Variable Boost Controller, which is designed to answer this kind of situations.





Click to enlarge    


 

MemCal Adapter Board


MemCal Adapter Board € 59,–


With this PUK-Chip-adapter the installation of a new chip is just a piece of
cake. You do NOT need to

- open the original MemCal
- no desoldering of the original Chip
- no installation of a chip socket

You just have to put this new PUK-Chip-adapter between the ECU-connector and
the MemCal. When it is popped-in the new chip will be active.

If you remove the PUK-Chip-adapter, the original/old chip inside the MemCal
will be active again.

MemCal Adapter
Click to enlarge

 



Services...




Custom ECU chip

Price € 430,–

If none of the chips listed on this page suit your particular application / engine set-up, I can develop a chip to match your specific requirements.
Based on either the SE, S4, S4s MK5 or improved Mk5, S300 or GT3 code, all constants and parameters, values and tables can be changed and adapted:

- Ignition
- Fuel
- Boost
- Overboost
- Correction tables
- Idle
- Redline rpm...
- ...and many more...

- Just supply me with a detailed description of your current engine setup and your performance wishes
- Chip comes with a comprehensive 11-page print out detailing its content, tables, parameters etc...
- Development takes only a couple of days



Chip installation

Price € 95,–
- Saving the old code
- Removing of the "old" chip
- Installation of the chip socket (for easy future chip swap ;o)
- Installation of the chip itself
-> I need the Mem-Cal or the complete ECU for doing this job, delivery time 1 day !!!



Reflashing your MemCal-Chip

Price € 39,–
- Saving the old program
- Flashing the old chip
- Reprogramming the chip with the new code
-> I need the Mem-Cal or the complete ECU for doing this job, delivery time 1 day !!!


Upgrading your chip

Price from € 98,-
A discount is offered to people who already own a PUK chip and don't want to use their old chip anymore: 98,- Euros plus the difference in price between the chip you want and the one you already have. That means that if you currently have chip #4 or above, you only pay 98 Euros. You must return your old chip to us by post, and upon reception, we will promptly send you the new chip :-)