Ghettodyne Support (OBD0) - Final Version: 2.3
 

http://pgmfi.hybridgarage.com/phorum...18&i=113&t=113

It will run a boosted car acceptably. There are still some rough edges, but it far surpasses a FMU in almost every regard. Nothing required except a chip (well, 450cc injectors) to run boost.

Props to Mike, George, the beta testers, and anyone else who deserves them.

Help find Mike a CRX! The lead developer hasn't owned a honda for months!

Re:Ghettodyne 2.2.1 w/ boost officially working
 

I tested it this morning and it ran awesome! I posted to the pgmfi forum.

Joeseph, this needs a sticky.

Re:Ghettodyne 2.2.1 w/ boost officially working
 

Ask, and ye shall receive. I love you guys.

Re:Ghettodyne 2.2.1 w/ boost officially working
 

what are the differences between what ghettodyne 2.2 does and what george's maphack did? i was under the impression that it just used george's maphack bin... ???

Re:Ghettodyne 2.2.1 w/ boost officially working
 

this is so cool, now to get my chip and zif socket in, then figure out why my wagon quit on me yesterday. I was headed to nashville to a honda meet, and it decided to quit running.

Re:Ghettodyne 2.2.1 w/ boost officially working
 

does any one plan on selling some of those chips????

Re:Ghettodyne 2.2.1 w/ boost officially working
 

Is there anyway of using this on a P28?

I have access to chip burning machines, and programming, but I am not so sure about whether it can be used on my car......

Re:Ghettodyne 2.2.1 w/ boost officially working
 

When I orded my chips from amerisemiconductor I had to order 11 ($30 min order), so I'm selling them out. I'm keeping 3 for myself though.. they are reusable. Seems a waste to have 8 chips laying around.

Re:Ghettodyne 2.2.1 w/ boost officially working
 

Thank you very much mike. will be chipping soon :)

Re:Ghettodyne 2.2.1 w/ boost officially working
 

what do you guys think is better?? this ghettodyne setup or the afc hack??

Re:Ghettodyne 2.2.1 w/ boost officially working
 

"what do you guys think is better?? this ghettodyne setup or the afc hack??"

If the ECU already has the ability in the first place, why not let it now?

I'd rather pay less and have the ability to tune ignition, fuel, launch control, idle, rev limit, etc.. my goodness what gets better than that? Mike (and others) have worked "xtensive"ly on this :)

Re:Ghettodyne 2.2.1 w/ boost officially working
 

GhettoDyne 2.2.1 MiniFAQ v.01

Q. What ECUs will ghettodyne work with as a one-chip drop in solution?
A. 90-91 PM6, 90-91 PR4, 90-91 PM7, 90-91 PS9, 90-91 PR5, 90+ PP5 (rover with Cat) The key here is that the ECU has a 256k external EPROM.

Q. Are there other ECUs that ghettodyne will work with?
A. 88-91 PM8, 88-89 PM6, 88-89 PM7, 88-89 PG7, 88-89 (nocat) PP5 (and maybe others) will work fine too with an adapter board. This is much more of a pain in the ass - see pgmfi if you care enough.

Q. Does ghettodyne support ______ ECU not listed above, like my P28 or P72?
A. No.

Q. Will ghettodyne ever support ______ ECU not listed above, like my P28 or P72?
A. Probably not.

Q. Ghettodyne doesn't run right it gives me some dll or ocx error!
A. See www.ghettodyne.com for troubleshooting help

Q. Does Ghettodyne support logging?
A. The GhettoTunes have provisions for datalogging at 9600 baud. A companion program, ECUControl, can support a limited amount of datalogging. It is a work in progress (i.e. NOT FINISHED AND NOT TOTALLY WORKING) so don't throw a ---- fit if it isn't logging your favorite sensor.

Q. How does the boost portion of ghettodyne 2.2.1 work?
A. This release includes the "GeorgeHack" or digital MAP-hack bin. This bin preserves the stock 17x15 table size present in the stock ECU but changes the range of the stock table by digital scaling the MAP signal by 5/8, so you can map just about to the end of the stock MAP sensor's range (10psi). GhettoDyne 2.2.1 is functionally very similar to using a AFC or SMIC or LMN7803 or whatever the ---- you use to cut the map voltage.

Q. Why use GhettoDyne 2.2.1 instead of a AFC or other hardware-based maphack?
A. Easy. Two big reasons: 1: A chip and some software is a lot cheaper than an AFC or SMC (but maybe not cheaper than a 7803) 2: You can tune timing with ghettodyne 2.2.1 so that the car is not excessively advanced under NA conditions and the desired amount of timing retard under boost is present.

Re:Ghettodyne 2.2.1 w/ boost officially working
 

hey doc (MR_DR_PEP), i might be needing a few chips burnt in the future. i'll let oyu know, but if your interested, i'll by the 11 chips, and if you can burn a few (3 or so) you can keep the rest as payment. let me know.

Re:Ghettodyne 2.2.1 w/ boost officially working
 

is this only for odb0?

Re:Ghettodyne 2.2.1 w/ boost officially working
 

you see any OBD1 ECUs listed in the compatibility list jackass?

Re:Ghettodyne 2.2.1 w/ boost officially working
 

I made a custom tune today and it's freakin' awesome. Launch control is set to 3000 rpm, and I gave it more fuel above 4 psi above 4000 rpm or so and my Lord it's awesome. It doesn't ping whatsoever and it's not too rich... it's great.

Make sure that you 5-6 people getting chips from me let me know what rpm you want launch control set to.. I think 3000 is perfect.

Re:Ghettodyne 2.2.1 w/ boost officially working
 

Hey, what do you guys think about setting up a GhD sharing site, or me putting a section on GhettoDyne.com for sharing custom tunes?

Also, there is a version still in the works for a higher resolution version that will also support 2bar and 3bar sensors with no MAP scaling whatsoever. But hey, it supports boost now which was the main missing ingredient.

I'm working on an installer that will register all the necisary ocx files that XP seems to bitch about so much, for those who recieve errors. A workaround some have found is to install ECUControl (www.ECUControl.com) and that fixes the errors (plus that is the program you need to datalog!). If that doesn't fix it email me @ support@GhettoDyne.com and maybe I can help.

Mike

Re:Ghettodyne 2.2.1 w/ boost officially working
 

damn i just bought an SMC500 and MSD BTM...i guess i can get rid of both of them now, for a chip burner/programer and some chips...

you guys think its worth it...to try and sell them?

Re:Ghettodyne 2.2.1 w/ boost officially working
 

xjoe: This is a variant of George's code plugged into the Ghettodyne code. Now you get george's digital cut of the MAP sensor voltage, and all the groovy features of Ghettodyne.

xtensive: Great idea, I'd love to have a database of tunes and the setups they are tuned for.

EVERYBODY: You want somebody else to burn you a Ghettoboost chip? Buyer beware. Everybody's setup is a little different, everybody's engine runs a little different. You won't have any way to fiddle the tune if it isn't working right. A Batronix Eprommer 3.3 kit, software, and shipping is available for under a bill, why not just buy it for yourself, and tune/chip your friends' cars to make your money back, and save yourself a tuning nightmare with a generic turbo chip.

Re:Ghettodyne 2.2.1 w/ boost officially working
 

anyone wanna list a couple of sites to get chips and sockets?

Re:Ghettodyne 2.2.1 w/ boost officially working
 

Wagon man with a turbo:

28 pin socket EEPROM socket www.digikey.com for $6.50, part number: A347-ND

and eproms are in different places. Americansemiconductor being one of them.


I also like the idea of a sharing site... I only suggest tunes for different size turbos, vs different motors, etc... Hope it stays organized because with all these people experimenting there's going to be probably tons of tunes around.


.. and by the way.. launch control really gets an eye from people watching/hearing it... I've experimented with it some today and it's really solved my traction problem taking off. Ghettodyne needs some type of "small" sticker we can drop on our cars.. something small that makes a point, you know :) Everyone that wants a sticker could pay like $10 via paypal or something to Mike as a donation or something ??? That could also help out with Mike finding a honda (CRX?)

Re:Ghettodyne 2.2.1 w/ boost officially working
 

ok im a ghettodyne newbie. but DR PEP, i asked u before about selling me a chip, and u said it was cool so i have to ask u this... how do i install the zif socket into my ecu? and also, will i EVER have to tune the car any more if i just drop the zif in with the new chip? i would want one with a 3000 rpm launch control, but how does this work? does it act like a two step? it will hold a 3000 rpm rev limit with no load on it then the limit will go away so it has the normal 7000 rpm or so rev limit like normal? i want to know if i can just solder in the zif socket, put in the chip, and never have to worry about it again (until i wanna ---- with the boost an ----). this will run my car flawlessly right?. please let me know, im VERY interested, this is about the only thing i dont understand yes about hondas. thanks alot for reading this long ass post.


Brett

Re:Ghettodyne 2.2.1 w/ boost officially working
 

Well, it's a little complicated, but not really...

Take the covers off the ECU on both sides and located the 28pin rom chip. Under my turbo setup, it's circled in RED.. make sure you get the right one. You have to be real careful, but you can heat up the legs with an iron (solder iron).. for like 2-3 secs and you can suck the solder off with a solder sucker. It's a simple plastic thing with a spring that sucks the solder into a chamber and removes it off the leg that you heated up... takes a few tries but it works great, and you do this to all 28 pins (legs). Once all the solder is removed, the stock rom chip will come off with little force, and clean the board up a little. Drop the ZIF in, and solder it in from the back side of the board. It takes careful work... and yes, like everyone's already said before, this whole deal is pretty sweet. Maybe if we knew a little more about your setup... basically I could leave mine like it is and call it quits, but I'm having too much fun, so I had to get an EPROM burner. I mean sure, you can have it a permanent setup...

EDIT: Oh, and as for the launch contol, it's a REV limit until you get to a certain speed. Sitting idle and you push the gas down, it bounces off 3000 rpm just waiting for your foot to release that clutch :) I think in this case it's set to around 3000rpm UNTIL 6mph.. but after that everythings normal.

oh yeah, here's a quick picture:

https://www.homemadeturbo.com/turbo_...gement_3_P.jpg

Re:Ghettodyne 2.2.1 w/ boost officially working
 

Here is a complete write up of how to do the mod when I did it..

http://www.driftkids.com/index.php?p...n&mods=PM6Chip

Also, here are some pictures of me doing it. Might give you an idea of what's going on..

http://www.driftkids.com/jason/pics/ecu/

Re:Ghettodyne 2.2.1 w/ boost officially working
 

does it matter what kind of 28 pin eeprom i use? theres a few that look the same, but they all have different serial/part numbers... ???

Re:Ghettodyne 2.2.1 w/ boost officially working
 

nice write up i liked it ;D

Re:Ghettodyne 2.2.1 w/ boost officially working
 

I use ATMEL AT29C256s.. these are rewriteable, and cheap, sooooo..

Re:Ghettodyne 2.2.1 w/ boost officially working
 

what do you need that is different to chip a 88-89 pm6? ???

Re:Ghettodyne 2.2.1 w/ boost officially working
 

Rextec: To make a long story short, the 88-89 PM6 and all the PM7's have a microcontroller that has the EPROM built into it. The 90-91 PM6 and the OBD0 PR4's have a PROMless Microcontroller, and an EXTERNAL 28 pin EPROM chip. That is why it is so easy to chip those ECU's. The EPROM only holds the program itself. The Microcontroller holds the information on how to execute the code. Honda used an Oki 8xC154 proprietary chip for the Microcontroller, and it has one stupid proprietary instruction (A5h) that no other 8051 Microcontroller will understand. This is why it is hard to chip those ECU's. Basically, you need to go through the assembly language (Disassembled) and replace the A5h command with two additional standard 8051 commands that perform the same function, which is coincidentally being done, but not sure on a time frame. Then you will be able to replace the entire 40 pin Microcontroller on the 88-89 PM6's and on the PM7's and achieve the same result.

Wow, I guess that wasn't such a short story after all... 8)

Mike

Re:Ghettodyne 2.2.1 w/ boost officially working
 

props mike nice ----.
gonna be chipping soon.

do you know if there would be any way to hook the eeprom socket right into the ECU so u dont need to remove the chip when u wanna retune the car?? just plug in a cable to the lappy?

Re:Ghettodyne 2.2.1 w/ boost officially working
 

shortyz, you're looking for an "EPROM emulator" or ROMulator (name for the substandard xtronic's product, but it's fluent like NOS so lots of people call them that).

Speed PHreak has one from a company in FL that ran him $109 plus shipping. Not a bad price. I'll try to dig up the info.

Re:Ghettodyne 2.2.1 w/ boost officially working
 

<----intently listening 8)

Re:Ghettodyne 2.2.1 w/ boost officially working
 

Really interesting... ;)
I still have some questions:
1/ is Ghettodyne a free software?
2/ is it really hard to tune it?Cause I have Romeditor and it's not really clear... :(
3/ for guys who has done some different set-ups,would it be possible to download the .bin or .hex files you have created to give them a try on our cars?If you specifiy the car set-up of each map,it could be really interesting...

PS:you all seem very afraid about detonation...And I'm about to turbocharge a B16A1 Civic (1991/1992 model) with a 10psi boost set-up (with a T3 turbo)...But in France we have 98 octane fuel...Should I stop being afraid of det problems if I turn the dizzy correctly?

Re:Ghettodyne 2.2.1 w/ boost officially working
 

just dont go lean. make sure you've got enough fuel and make sure the dizzy isnt set at something stupid.

Re:Ghettodyne 2.2.1 w/ boost officially working
 

so if you are using a ROMulator to tune on the fly, what do you do about an eeprom? do you just your ECU with a blank eeprom? also, i can't install ghettodyne on my pc? why? do i need any type of software to install it? i have xp it that makes a difference. and last of all, if you use the ROMulator, do you still need a chip burner?

Re:Ghettodyne 2.2.1 w/ boost officially working
 

Goto www.GhettoDyne.com There is a fix for XP listed right on the home page. Hope that solves your problem!

Mike

Re:Ghettodyne 2.2.1 w/ boost officially working
 

xtensive, i was one of the people emailing you and you sent me that link, but i doesn't work either?? i get a black text box that says "file not found"

Re:Ghettodyne 2.2.1 w/ boost officially working
 

Hrm...are you saving it to disk first? It needs to be in the same directory as the other GhettoDyne files. Once it is downloaded you should double click on it and it should pop-up a black window for a second and then go away, which it sounds like it is doing, but again it has to be downloaded, and not opened from it's current location when you click on the link. Let me know what happens.
Mike

Re:Ghettodyne 2.2.1 w/ boost officially working
 

Is there someone here who could briefly explain me how ghettodyne works?

Re:Ghettodyne 2.2.1 w/ boost officially working
 

well (i'll probably catch hell for this and be quoted and corrected) it's basically like hondata, that's the easiest way to explain it if you don't know what it is :-X