VS - VY V6 Multi-Rom Memcals

[tav]

Hey guys,

Lately I have had a few friends hassle me about making them a set of boards which let you select multiple tunes on-the-fly.
I haven't come accross any boards for sale which do this, and couldnt be bothered making them a set of PCB's from veroboard either so I got a few printed.

There are a fair number of uses; you can use them to switch between different fuel types. Or you can use them to switch between a fully blown performance mode and a completely detuned mode to keep the boys in blue happy if u ever get pulled over for one of those random EPA tests.

I have been runing a rev-limited profile on my daily for about 2 years to keep it 'quiet' if it attracts the wrong kind of attention. This will be even more useful for over-driven M90's with 16psi pulleys which scream when revved.

Here are a few pics:

IMG_20130321_200030.jpg

IMG_20130321_210059.jpg

You can equip the boards with the following rom sizes:
+ 1Mbit: No switches required, works as a regular memcal
+ 2Mbit: 1 Switch, lets you select between 2 tunes
+ 4Mbit: 2 Switches, lets you select between 4 tunes

I have 10 boards left. I am still in the process of sourcing more 4mbit chips though. Once I get them I'll be putting thse memcals up for sale. Price isn't finalised yet.
First in first served. Let me know what you guys think.

Cheers.

[kojab]

This is going to be winner.

Please put me down for two units.

Great idea.

[tav]

This is going to be winner.

Please put me down for two units.

Great idea.

No worries. 7 left guys

[Helical]

Don't suppose they will work with a Series 3 5.0L V8? My understanding is the Series 3 PCM is very similar to the V6 PCM.

Troy

[kojab]

Don't suppose they will work with a Series 3 5.0L V8? My understanding is the Series 3 PCM is very similar to the V6 PCM.

Troy

If your talking about VS Series 3 which has the VT 5.0L engine then yes it will work. Bin and PCM of course is different bit bin size (1 Mbit) is the same.

[Helical]

If your talking about VS Series 3 which has the VT 5.0L engine then yes it will work. Bin and PCM of course is different bit bin size (1 Mbit) is the same.

Sure am, sounds like a goer then. I'm interested in one pending price.

Troy

[tav]

Good news,
I can get the industrial spec 4mbit AM29F040's (They have a much wider operating temperature over regular commercial ones)
They are a DIP32 package. This means that there is no need to use a PLCC -> DIP32 adaptor board.

I can do these for $50 flat; all assembled, tested and ready to go. +$10 more for Express anywhere around Australia. Regular postage should be a little less if you would prefer that instead.

If you want the chip pre-programmed with your desired tune, email me your .bins and I can flash them in at no extra cost.

What you get
+ Board & SMD components
+ AM29F040B - 90PI EEPROM (90ns read; Industrial Operating Temp: –40°C to +85°C)
+ Machined DIP32 Socket with gold plated contacts
+ Jumper headers, jumper caps and connectors to connect to the headers when wired up to a switch in the car.
+ Instruction sheet.

All that you need to do is to wire up the secret tune selector switches to the jumper headers and you're all set.
A diagram on the tune selection combinations will be uploaded soon.

[tav]

After 3 dud batches of chips, finally got a set of 4mbit DIP32's from the states. Will have these ready within a week for sale.

[tav]

I apologies for the late reply.

These latest batch of chips are the go.

They stood up to 100 read / write cycles using random patterns and had no issues with data retention whatsoever.
I have been running one in my daily and have had no issues too.

I have sold all 10 already; but for those who would like more; leave a note in this thread as I am in the process of running another set of PCB's.
Cost for the new batch will be slightly more expensive due to the rareness of 4mbit DIP32 EEPROM's.

Cheers.