Thanks to Mike(xtensive) I got my self betronix eprom reader/burner/eraser and few blank eproms plus Mike’s Zcontrol software(my favorite software, I play with it all the time)
Sense this is my new toy I had a chance to play with few upgraded stage 3 eproms that I have bought before: Ash Z1, JWT, GMS ginn, Devin and Stock JDM. this is my earlier post:
[[[ http://www.twinturbo.net/net/viewmsg.aspx?forum=general&msg_id=1098933 ]]] I’ve found out why I lost power with GMS chip and that is too retarded timing for my application. In my opinion GMS maps don’t look professionally tuned, because seems to me values are added on simple basis. Here is some example of all 4 upgraded chips.
I will only show example of primary fuel map and primary knock map from 3.6k rpm to 6.4krpm TP 72% and up. GMS:
Timing ……………………….old fashion big block distributor type retarding theory.
18 17 17 ……………………….I would recommend this ECU upgrade to
18 17 17 ……………………..Idiots who drive their TT Zs HARD and
18 17 17 …………………….don’t know much about technical stuff.
18 17 17 …………………….This is a hardcore Alabama redneck type
18 17 17 …………………….timing tuning that WORKS. Safest chip on the market.
18 17 17
18 17 17
18 17 17
fuel…………………………………The values are all the same like Kid’s play
11.76 11.47 11.20……………………..But they work. I recommend this eprom
11.54 11.20 11.20……………….. to hard driving Zers who use just pump gas.
11.20 11.20 11.20
11.20 11.20 11.20
11.20 11.20 11.20
11.20 11.20 11.20
11.20 11.20 11.20
11.20 11.20 11.20 JWT
Ignition …………this looks more like pro maping but there is a problem
20 19 19 ……….JWT knock safety map is same as its primary so its
21 19 19 …………Worse than stock eprom, at least stock eprom has
22 19 19 …………..somewhat retarded knock map. In my opinion
22 19 19 ………….stock eprom is BETTER than JWT. But there is a reason
22 19 19 ……………why JWT uses same mapping in primary and safety timing maps.
22 18 18 ……………JWT knows that Z32 allways have problems with knock sensors
19 18 18 ………… code 34. So if they made conservative safety map than people would 19 18 18 ……..be complaining about power loss after they had $600 ecu upgrade.
………………. There are lots of stupid idiots out there that don’t know about Safety, ALL people whant when they pay $600 is RAW power so
Foe JWT to guarantee power they had to scrap Knock map regardless
If the users will blow their motors. Summary on JWT theory:
“its all about making MO FOS happy for a short time at least” Fuel ……………………..This looks like professional type fuel mapping but
11.76 11.47 11.47………Its too rich, 10:1 fuel dumping. Almost rich as
11.13 10.76 10.57 …….stock fuel map. JWT sucks
10.75 10.23 10.23
10.40 10.17 10.17
10.28 10.01 10.01
10.01 10.01 10.01
10.01 10.01 10.01
10.01 10.01 10.01 ASH Z1
Ignition ………..More advanced than JWT but I think I know why
22 21 20 ………..ASH did this! To beat JWT on a dyno. But ASH
22 21 20………..knock safety map is very good for safety it goes
22 21 20………..as far as 13btdc in retard. So you got more power than JWT
22 21 20………..and more safety than JWT. ASH KNOWS!!!
22 21 20
21 21 20
20 20 19
20 20 19 DEVIN Japan
Ignition ……..Stock JDM .But the knock map is all 15 btdc. The whole map is just 15
23 21 21……..so if you get into code 34 knock sensor(safety boost)
25 23 23 ……..Car would be very slow in all rpm range.
25 24 24 ……..Few other maps look like mess so I never tried out this eprom
23 21 21 ………in my Z.
25 22 22
25 22 22
25 20 20
21 19 19 Fuel
ALL 11.20 same as GMS STOCK Z32 TT eprom
Ignition
23 21 21
25 23 23
25 24 24
23 21 21
25 22 22
25 22 22
23 20 19
20 19 19 Fuel ……………………..Less rich than JWT, basically STOCK is better than JWT.
11.76 11.47 11.47 ……..But stock values need to be a bit smoother. As you see
11.54 11.13 11.13 ……. it goes from 11.54 to 11.13.
10.88 10.75 10.75
10.40 10.34 10.34
10.57 10.51 10.34
10.63 10.63 10.28
10.46 10.40 10.23
10.23 10.23 10.01
I would realy like to see MINES and JUN program. I was about to buy ASH Zemulator but soon as my Super Hero Mike(xtensive) gave me Zcontrol software and few ideas
On how things work I was on my way of tuning my own custom eproms for my car.
I really enjoy playing with ecus and eproms.
Ive tested my ZTT with 4 eproms allwready: GMS,JWT,Z1 and Stock
With GMS I lost power but thats good for safety of the motor
With JWT I felt lots of power but did not want to risk detonation
With ASH Z1 I felt more power than JWT plus I know that his knock map is conservative. Very good.
With Stock like I know very well was pretty much similar to JWT.
My personal ECU tuner grading: ASH Z1 (A)
GINN (B-)
JWT (D-)
DEVIN (! don't know) Now am selling my two original eproms from JWT and GMS. I dont need them anymore. Now am runing my custom program, pritty much its mostly the masterpeace of ASHZ with my leaner fuel map, and more conservative timing map. I will soon try running very advanced timing map with water injection just to see how well will I do at the 1/4 mile track.
my site click on the pic.
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My personal ECU tuner Reviews. Difference in maps! - 
03:03:40 12/30/03
