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lol just read all 12 pages of this thread in 1 sitting

very interesting... i already have a switch in my 32r but i may upgrade to this as im looking at a bit of track work as well in the future.

the only problem i see is waiting 5sec (a very long time) to switch from 4wd to rwd, sometimes i want it instantly when the feeling comes over me, but then again i suppose i could just use my switch i already have for that... is there any way of making the hold time a little shorter like 2sec?

It also has 2 other modes which are 1) 2wd mode just like pulling the fuse in the R32 (and should only really be used in a R32). 2) A mode which allows little bias to the front wheels thereby letting you spin the rears very easily (although eventually the ATTESA intervenes and pulls the fronts in.)

Great sounding product, hope to invest my pennies into one of these in the upcoming months. ;)

Question tho, the two modes mentioned above, are these selected by paddling up and down, or do they require a special keystroke (hold both buttons, hold one button for longer etc) or have seperate switches altogether?

Also, first method, is this only using connection to ATTESA? or does the board have an output to a switch/relay that would in turn on/off the ATTESA's 'fuse' connection?

I ask because a switch method would also disable ABS(not necessarily bad), whereas I assume if direct to ATTESA would keep it enabled.

It is for a R32 GTR.

Sorry if this has already been covered previously, or am asking curley ones lol.

Thanks.

The no FWD mode is accessed holding down for 5 sec, the almost no FWD mode is the lowest level on the controller.

It is simple to adjust mid lap if you really do want 3 on one corner and 5 on another :D The no FWD mode turns off the ABS exactly the same as pulling the fuse.

  • 2 weeks later...

infamous_t, yours was sent yesterday :domokun:

There are currently no units available, and the last 10 are going to be build over the next few weeks.

After these last 10 we will not be able to make any more because there are no more boards available.

So.....if you want one of these, please post up your interest like Dan and Dave have, and I will offer them first come first served.

Thanks everyone for your orders, there are quite a few of these controllers out there now in everything from street cars to rally cars to tsukuba time attack cars.

Well done Mark for your work in designing, developing and building these over the last few years :w00t:

infamous_t, yours was sent yesterday :P

Received yesterday, thanks Duncan, look forward to playing with this baby in the next few weeks :P

Well done Mark for your work in designing, developing and building these over the last few years :bunny:

x2

I know the work that goes into these kinda projects (my old work made/developed various electronics stuff, mainly on PIC boards), and its alot of time ,effort & resources. :ninja:

Hi Duncan,

If possible can you please add me to the list to receive one of the last batch? Can transfer the money in advance, just let me know what the account details are.

Thanks in advance

Wegs

[added on 22/11/07: Because i don't login here everyday, if you need to contact me when these are close for payment please email me at [email protected] so i can respond in a timely manner. Thanks.]

Edited by wegs
Good news, these are available again.

PMs sent to those on the waiting list, and there should be a couple of units left over anyone else who wants them

Hi Duncan - please put me on the list for a controller and advise details when they are ready to my e-mail.

Thanks

Hi Duncan,

Sad to here its the final order for these controllers i guess i have been lucky to get in early for the final batch, how many more to go before you let us know your right to go for the payment, sorry i am a little excited and impatient forgive me he he.

Cheers,

Dave.

Sad to hear these are being finished Duncan. We used my one extensively during the Dutton Rally this year and is no doubt one of the toys that helped us win the event.

Even though for me I've had the transfer case done as well and we only ever consequently go as high as a setting of 2 - it still makes a big difference.

yeah these have really had some good results for race, rallies and good old track days over the years, including 2 Dutton rallies now :(

Dave, I'll hold on to EOIs until they are built...will post up as soon as they are ready

After some further investigation (actually counting them) I have 13 circuit boards left, so it will be the last lucky 13

To answer infamous_t's question (sorry to reply so late but for some reason i haven't been getting email notifications of this thread anymore) if you hold the up button for 3 secs you will get into this mode where it tricks the attessa computer into thinking it is going round a sharp corner and you will get plenty of rear wheel action, the 4wd drive is still active but it will not pull the front wheel drive in for about 20-30 metres of hard rear wheelspin

The two wheel drive mode is achieved on these controllers by tricking the attessa into thinking there is a problem with the lateral G-Sensor by outputing a voltage of less than 1.5V. The attesa computer then thinks there is a problem with the G-Sensor and puts itself into a limp home mode disabling the 4wd and the ABS. Not sure why the ABS is disabled as well but assume because the rear wheel sensors input to both the attesa and ABS that if a fault occurs anywhere in the loop it shuts both down, perhaps there is another reason.

I did not want to put any relay outputs on this controller (but could have easily many spare PIC ports available) because i wanted to keep it as small as possible and adding relay outputs means a transistor and resistors which take up valuable space. One of the objectives was to keep it as small as possible because a fellow who shall remain nameless wanted it to be undetectable during scrutineering hence the radio controll buttons to change modes and the led which would pass for a car alarm led.

I chose to put a delay on entering 2wd mode and almost 2wd mode because i did not want anyone to enter these modes by accident which could be very bad if you weren't ready for it on the race track or the road

Sorry to see it finish, it may not look too flash but it is small, unobtrusive, reliable and as others attest is very effective.

Mark

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