VN to VT 3.8 V6

[Harrismarine]

What do I need to do so that I can tune these motors with the factory computer?

[MICK]

If you go to these three places and put some time down you will find your answers. There are a few options and the later model stuff is coming to light. I can now see why it has taken so long. There were so many variations from VS on it is not funny.

http://www.moates.net/

http://www.delcohacking.net/forums/

http://tunerpro.markmansur.com/

PS: Holden's went memcal all the way to the VX,VY in the V6, there were a couple flash PCM's put in there as well.

Paul has mentioned that at some time he would like to integrate early chip editing into EFILive. I think this will be a while off, or maybe the effort to do so just might not be worth it when time comes.

Mick

[Biggsy]

PS: Holden's went memcal all the way to the VX,VY in the V6, there were a couple flash PCM's put in there as well.

VX and VY supercharged V6 was memcal and std V6 was flash PCM

[Harrismarine]

Thanks Guys, guess I have some reading to do. But in theory I should be able to set up a VS with VN computer so that it will run in a boat and tune it...

[Biggsy]

Yes, you can. There is a guy on the delcohacking site who has just done that. He is running a VS Ecotec motor with an earlier computer in his Torana.

[5.7ute]

I ran an ecotec engine with a VN computer in my VS speedway car.(rules wouldnt allow a later pcm to be used) IIRC it was only the knock sensors & ECT sensor that needed to be changed & a MAT sensor fitted.(plus a few wiring extensions)
EDIT: This was done starting with a VN loom.

[Biggsy]

and a MAP sensor (obviously)
Did you have any problems with running the VN timing on the VS motor that you remember?

[MICK]

I have been looking real hard at the S/C code in the VS on, No Map!!

Pure Maf for air mass calculation-Why-some say better fuel economy was the aim for Gmh. I was wondering why I could not find a VE table...

The code in the N/A V6 had Map and predicated air mass.

If anything I would go for the 082 ecm before I went to a 808, there would be better reliability in the ecm department. JMHO though.

That VS ecotec ECM does not frustrate me anymore. Do you have the ecm and wiring harness for the VS? If you do pull the memcal from the ecm, remove the blue plastic cover and read the Bcc code off the silver sticker on the eprom. Let me know.

Cheers

Mick

[Biggsy]

BSTK is the one I am looking for Mick

[5.7ute]

and a MAP sensor (obviously)
Did you have any problems with running the VN timing on the VS motor that you remember?

While I was running the stock camshaft there wasnt an issue. Mind you the engine lived high in the rev range on the track, never seeing under 4500rpm.
The new owner has upped the camshaft & melted number 3cyl a number of times now. I had put it down to the standard fuelling calibration more than timing but I was a total newbie to efi at that time.(we werent allowed to tune the engine, only a stock calibration was allowed to be used for parity)

[GMPX]

Wow, Flashbacks with all this Memcal talk.
I love the way so many websites have copied all the data I put up on the original Memcals website I did - http://www.geocities.com/memcals/
2003, it does seem like a long time ago.

Cheers,
Ross

[Highlander]

Wow, Flashbacks with all this Memcal talk.
I love the way so many websites have copied all the data I put up on the original Memcals website I did - http://www.geocities.com/memcals/
2003, it does seem like a long time ago.

Cheers,
Ross

It is a long time ago...

[Biggsy]

Wow, Flashbacks with all this Memcal talk.
I love the way so many websites have copied all the data I put up on the original Memcals website I did - http://www.geocities.com/memcals/
2003, it does seem like a long time ago.

Cheers,
Ross

And people like me are greatfull that you did :cheers:, they helped me get started.
I remember the even older days with the GMECM email list forum, those were the days...........

[GMPX]

But remember GMECM was created from the DIY-EFI forum, now we are really going back!

[MICK]

BSTK is the one I am looking for Mick

You see what I mean about so many variations in the production code. In some cases things are in the same place, but not all ways. Complete working definitions for all these is a way off, but I can find the things I need to find.


51A Initial Release.
51B Display and DTC Logging air rate variable modified M83 fix.
51C A16 toggle fix.
51D Left and Right bank integrator update timers was
Single timer for both banks
51E M68 Slip implemented and mapped to M85
51E is the latest LG2 M30 and M78 release
51F High resolution VSS implemented
Boost Control first cut
Fuel Pump Speed Control first cut
New lookup air mass variable
51F is the latest M35 release
51G Boost Control fully implemented
Fuel Pump Speed Control fully implemented
O2 Sensor Bias Logic implemented
Odometer implemented
51H M68 Slip implemented and mapped to M85
L67 has new torque converter but software unaltered
51H is the latest L67 release

[MICK]

Wow, Flashbacks with all this Memcal talk.
I love the way so many websites have copied all the data I put up on the original Memcals website I did - http://www.geocities.com/memcals/
2003, it does seem like a long time ago.

Cheers,
Ross


That was one of the first things I found when I first became interested...I hang a shortcut off my desk top.

I like to bring back the restless years Ross you all ways take the bite.

That web is pretty cool, shame you don't have the time to update and maintain it Ross. Your a Legend anyway for leaving it there!

Cheers

Mick

[MICK]

Lads, what I have been getting into of late has been pretty cool.

I have been looking at getting real-time tuning happening for the later 27C010 eprom (VS on) with a Moates Ostrich V1 and V2 emulator.

TunerCat and TunerPro have kindly added some cool updates to there software for me. Much to do with buffer size and definition recognition. I can now upload and download the larger 128k bin files to the Ostrich and construct definitions to suite the BCC's.

One thing that I quite have not worked out is the addressing. The Ostrich uses a 4M chip so the bin needs to be loaded at a off set with-in the emulator. I have been using a AM 29F040 as a test bench to see if I can find the right combination. Been trying to get one running using a AM 29F040 as a replacement. It has been indicated to me that it should work and I should load the bin at the back end of the AM29F040. That would be h60000 to h80000. I worked out how to go about it and I loaded the bin up to a chip but no worky, worky. Had a couple goes at it now and Hummmmmm. I'm not to sure.

I was going to find another gunnie pig and try loading the same bin in all 4 blocks just to see what the outcome would be. I also have a couple 27F010 chips heading this way just to get back to basics and have a harder look at it.

I really like the simple plug and play usb interface of the Ostrich, it's very user friendly compared to the NV-Ram interface connection. Com port nightmare if you ask me. Personally I think a W based editing software connected to a Ostrich is the way to go for these later models.

I see allot of people getting into these S/C VT, VX's these days and that's my personal target, but this just opens up all options for every one.

Cheers

Mick

PS: Hummm I'm so close I can feel it in my bones.....:)

[The Alchemist]

hey Mick , I have a customer car here with a VT 3.8 supercharged, all tuned via the ostrich 2 emulator but the 29f040 chip burns OK with the BURN2 and reads back perfect BUT won't start the car and the fans come on. Did you ever work this out. I've done just as you did and tried the end of the chip and 4 stacked bins but no go.
Can you help ?

cheers,

Mike

[kangsta]

Check the pin out, the address lines may not match with a 27C010