Wtf is this board? - Zilvia.net Forums | Nissan 240SX (Silvia) and Z (Fairlady) Car Forum

Korey · 09-08-2011, 01:32 PM

Google just keeps telling me things about contraception when I google it and after digging through random board people sell I can't find anything that looks similar to it.

Does anyone have any idea what this is?

If you can't see it well, it says SR Progress Board Type, 92F22

Thanks,

Korey

hobbs · 09-08-2011, 01:41 PM

Unbolt it and take a picture of the other side. Looks like a basic EPROM daughter board to me...

vas570sx · 09-08-2011, 01:45 PM

yeah, it may be a generic daughter board. The other side is prolly gonna give you more info like who tuned the chip or whatever.

OBEEWON · 09-08-2011, 01:50 PM

Stick it in your Sega and see if you can play Contra.

Korey · 09-08-2011, 01:56 PM

Alright, it's sitting a shop right now, but I'll get a picture of the chips as quickly as I can. Thanks for the fast replies guys!

Korey · 10-19-2011, 08:35 PM

Alright here is the other side of the board. Sorry for the delayed reply.

Croustibat · 10-20-2011, 03:10 AM

The SR20 ECU stores the maps in 2 interlaced eproms. This looks like an eprom switcher to me, i.e. you have 2 sets of maps, an can switch from one to the other. But this is just a guess...

I could not see the first pic . can you put a pic of the other side, and give me the infos written on the chips ? If the 2 big chips are twice as big as what they should be (which their serial number can tell, just peel of the labels and put them back after, it is only there to mask the UV window), it surely is what i think it is.

SoBay240guy · 10-20-2011, 11:03 AM

That is just a daughter board, someone with ROMtune or any of the other software suites that handle nissan ROM's (or a clever guy with excel) can adjust injection and timing events ETC. assuming he also had a PROM burner and appropriate chips.....

The french guy got some stuff kinda right...

the chips are odd/even burnt chips on most daughter boards but that doesn't mean you have 2 maps it means your 1 map is stored on the 2 chips...some boards allow you to switch between external and internal maps (intrenal = original factory tune ) but that is useless most of the time because you usually get a tune because you needed to adjust for hardware changes...so your stock map is probably nothing you would be interested in running.

09-08-2011, 01:32 PM	#1
Korey Join Date: Nov 2010 Location: Marietta, GA Posts: 28 Trader Rating: (3) Feedback Score: 3 reviews	Wtf is this board? Google just keeps telling me things about contraception when I google it and after digging through random board people sell I can't find anything that looks similar to it. Does anyone have any idea what this is? If you can't see it well, it says SR Progress Board Type, 92F22 Thanks, Korey

09-08-2011, 01:45 PM	#3
vas570sx Zilvia Addict Join Date: Jun 2008 Location: west palm beach Posts: 844 Trader Rating: (0) Feedback Score: 0 reviews	yeah, it may be a generic daughter board. The other side is prolly gonna give you more info like who tuned the chip or whatever. __________________

09-08-2011, 01:50 PM	#4
OBEEWON Post Whore! Join Date: Feb 2006 Location: Hightened State of Emergency Posts: 6,054 Trader Rating: (9) Feedback Score: 9 reviews	Stick it in your Sega and see if you can play Contra. __________________

10-20-2011, 11:03 AM	#8
SoBay240guy Zilvia Member Join Date: Aug 2006 Location: So. Cal. Age: 40 Posts: 191 Trader Rating: (0) Feedback Score: 0 reviews	That is just a daughter board, someone with ROMtune or any of the other software suites that handle nissan ROM's (or a clever guy with excel) can adjust injection and timing events ETC. assuming he also had a PROM burner and appropriate chips..... The french guy got some stuff kinda right... the chips are odd/even burnt chips on most daughter boards but that doesn't mean you have 2 maps it means your 1 map is stored on the 2 chips...some boards allow you to switch between external and internal maps (intrenal = original factory tune ) but that is useless most of the time because you usually get a tune because you needed to adjust for hardware changes...so your stock map is probably nothing you would be interested in running. __________________ I am SKULLWORKS

09-08-2011, 01:41 PM	#2
hobbs Nissanaholic! Join Date: Aug 2010 Location: Under a rock Posts: 2,264 Trader Rating: (43) Feedback Score: 43 reviews	Unbolt it and take a picture of the other side. Looks like a basic EPROM daughter board to me...

09-08-2011, 01:56 PM	#5
Korey Join Date: Nov 2010 Location: Marietta, GA Posts: 28 Trader Rating: (3) Feedback Score: 3 reviews	Alright, it's sitting a shop right now, but I'll get a picture of the chips as quickly as I can. Thanks for the fast replies guys!

10-19-2011, 08:35 PM	#6
Korey Join Date: Nov 2010 Location: Marietta, GA Posts: 28 Trader Rating: (3) Feedback Score: 3 reviews	Alright here is the other side of the board. Sorry for the delayed reply.

10-20-2011, 03:10 AM	#7
Croustibat Nissanaholic! Join Date: Aug 2011 Location: France - Toulouse Age: 44 Posts: 1,851 Trader Rating: (0) Feedback Score: 0 reviews	The SR20 ECU stores the maps in 2 interlaced eproms. This looks like an eprom switcher to me, i.e. you have 2 sets of maps, an can switch from one to the other. But this is just a guess... I could not see the first pic . can you put a pic of the other side, and give me the infos written on the chips ? If the 2 big chips are twice as big as what they should be (which their serial number can tell, just peel of the labels and put them back after, it is only there to mask the UV window), it surely is what i think it is.