CEF11E

Map Switching. Sorry, I promised someone this a few days ago and never got round to writing it up... You can run 2 maps on an eprom if you double the size of the eprom you are able to access the maps at the flick of a switch so you can have a valet mode, or if you are game launch control. an R32 uses a 27C256 chip, so instead we will use a 27C512. you then have to combine both maps to produce 1 .bin file. Bin 1 will be on the first half of the eprom and bin 2 on the second half. Put them both in the c: directory and go to dos prompt and type: “copy file1.bin+file2.bin file64k.bin” you will now have a 64k .bin that you need to write to an eprom. Once that is done you need to modify the way the ECU will access the maps. This is done by using a pull-up resistor on pin A14 to select between GND and VCC. Map 1 will be selected when A14 is connected to VCC Map 2 will be selected when A14 is connected to GND Too lazy to do diagram right now.. Map switching is useful if you want to leave the car with a mechanic and don’t want them to thrash the car. I have a map with no extra timing and rev limit set to 4500… It is debatable as to wether you can switch in the fly. I have done it with no issues but outers will tell you not to do it. You can put the switch on the steering wheel and use it for launch control. I have also used my valet mode map for this as 4500 is a good launch rpm for my car. But my switch is somewhere hidden.

Do you have the centre caps? If so I will take them. Cheers

around 230~240. I will confirm this as soon as time and dyno permits

fuel economy=Controlled by right foot, for normal driving it's the same to the nearest 1km (still 400kms per tank) leadfoot driving = tank gone in 250 or there abouts k's

my supporting mods are 444cc injectors huge jap fmic gtr fuel pump catchcan ecu remapped to suit 19psi is for occasional squirt 15 is for daily driving. at 15psi it makes around 200rwkw. RB20 internals are good for around 250rwkw with a propper tune.

Thanks Ronin Cheers...

Really quick one... I am looking for a new exhaust and a really nice GTR exhaust has come up and I am wondering if a R32GTR catback will fit on a R32GTST. I have never looked at a GTR floorpan or rear diff assembly so I need some help. Has anyone fitted one? can anyone tell me for sure that one does fit? Thanks

How is it all going Tangles? I am now running 19psi and it's a lot of fun. I am used to the lag compared to the stock turbo now. I have noticed it takes a while to reach 9psi. but as soon as 9 is reached it is only a split second till 19psi. I need some wider tyres, better diff and I am sure gearbox and clutch will not be far off. just finding all the bits at the right price is the hard part.

Do you have the lines that go with the calipers?

yep still all for sale

As for further results, I may have posted earlier but my tune has been redone and new coilpacks and plugs and running 18psi. boost is coming on faster with the leaner tune and producing more power everywnere. I am only estimating but it would be putting out 230kw now. I will have the car dynoed in the next 2 weeks. I am very happy with the power and delivery. Cheers

Hi Tangles. lol I know it can be a biauch of a job mate. If you mean the inside of the turbo closest to the engine... follow the line to the block and loosen the banjo bolt to within a couple of threads so you have side to side movement. that will allow you to line uo the bolt with the carteridge easier. Also use grease like somone else sugested to hold the washers on there. Taking the turbo off is really hard if you do not have the right tools. you need a good socket set with different length extension bars. you also need a good set of ring/open neded spanners.

Jeff can you point out some decent software to use for map tracing?

Here is a few address files for rom editor # # NISSAN HCR32 RB20DET MAP ADDRESS (E) # # Variable,Start-Address,X,Y,Map size,value,Map-name #UNIT NAME TYPE_UNIT,HCR32(RB20DET) type-M,*,*,* #HIGH/LOW octane Fuel map. HIGH_FUEL,&H7D00,16,16,256,1,High octane Fuel map REG_FUEL,&H7500,16,16,256,1,Low octane Fuel map #HIGH/LOW octane Ignition time map. HIGH_FIRE,&H7400,16,16,256,1,High octane Ignition time REG_FIRE,&H7C00,16,16,256,1,Low octane Ignition time #K required number K_DATA,&H7F2B,2,1,2,1,K required number #Void blast-off time IGN_TIME,&H7F88,1,1,1,1,Void blast-off time #Feedback control FB_SWITCH,&H7F91,1,1,1,1,Feedback control #VQ map VQ_MAP,&H7A70,16,1,128,1,VQ map #Fuel/Ignition time TP scale TP_SCALE_FUEL,&H7AF0,16,1,16,1,TP scale (Fuel) TP_SCALE_FIRE,&H7B10,16,1,16,1,TP scale (Ignition time) #Fuel/Ignition time RPM scale RPM_SCALE_FUEL,&H7B00,16,1,16,50,RPM scale (Fuel) RPM_SCALE_FIRE,&H7B20,16,1,16,50,RPM scale (Ignition time) #TTP MAX/MIN TTP_MAX,&H7E90,16,1,16,1,TTP MAX TTP_MIN,&H7E80,16,1,16,1,TTP MIN #TP Limit AF_LIMIT,&H7960,16,1,16,1,TP Limit #Rev.Limit REV1_LIMIT,&H7FB4,1,1,1,50,Rev. Limit 1 #Speed Limit SPEED1_LIMIT,&H7A0A,2,1,1,2,Speed Limit 1 SPEED2_LIMIT,&H7A0B,2,1,1,2,Speed Limit 2 SPEED3_LIMIT,&H7FA5,2,1,1,2,Speed Limit 3 #Add.map 1 ADD_MAP1,&H7940,16,2,32,1,Idol getting a stabilization control (MAX) #Add.map 2 ADD_MAP2,&H7980,16,2,32,1,Idol getting a stabilization control # # # NISSAN R31 RB30E MAP ADDRESS # First half model. 128Kbit ROM type # # Variable,Start-Address,X,Y,Map size,value,Map-name #UNIT NAME TYPE_UNIT,R31(RB30E) R31,*,*,* #HIGH/LOW octane Fuel map. HIGH_FUEL,&H3D00,16,16,256,1,High octane Fuel map REG_FUEL,&H3D00,16,16,256,1,Low octane Fuel map #HIGH/LOW octane Ignition time map. HIGH_FIRE,&H3C00,16,16,256,1,High octane Ignition time REG_FIRE,&H3C00,16,16,256,1,Low octane Ignition time #K required number K_DATA,&H3F2B,2,1,2,1,K required number #Void blast-off time IGN_TIME,&H3F3E,1,1,1,1,Void blast-off time #Feedback control FB_SWITCH,&H3F5B,1,1,1,1,Feedback control #VQ map VQ_MAP,&H2D80,16,1,128,1,VQ map #Fuel/Ignition time TP scale TP_SCALE_FUEL,&H2F00,16,1,16,1,TP scale (Fuel) TP_SCALE_FIRE,&H2F2F,16,1,16,1,TP scale (Ignition time) #Fuel/Ignition time RPM scale RPM_SCALE_FUEL,&H2F00,16,1,16,50,RPM scale (Fuel) RPM_SCALE_FIRE,&H2F30,16,1,16,50,RPM scale (Ignition time) #TTP MAX/MIN TTP_MAX,&H3E90,16,1,16,1,TTP MAX TTP_MIN,&H3E80,16,1,16,1,TTP MIN #Acceleration increase volume ADD_FUEL,&H3200,16,1,16,1,Acceleration increase volume #Rev.Limit REV1_LIMIT,&H3FB4,1,1,1,50,Rev. Limit 1 #Speed Limit SPEED1_LIMIT,&H3FA5,2,1,1,2,Speed Limit 1 #TP Limit AF_LIMIT,&H3E70,16,1,16,1,TP LIMIT #Add.map 1 ADD_MAP1,&H3100,16,16,256,1,HIGH GEAR FUEL MAP #Add.map 2 ADD_MAP2,&H3200,16,16,256,1,HIGH GEAR KNOCK FUEL MAP #Add.map 3 ADD_MAP3,&H3F60,16,1,16,1,IDLE TIMING MAP #Add.map 4 ADD_MAP4,&H3E50,16,1,16,1,TIMING DURING ENGINE START #Add.map 5 ADD_MAP5,&H3EC0,16,1,16,1,TIMING ADVANCE IRT WATER TEMPERATURE #Add.map 6 ADD_MAP6,&H3E20,16,2,32,1,AFR ENRICHMENT TABLE IRT WATER TEMPERATURE #Add.map 7 ADD_MAP7,&H3B30,16,2,32,1,TEMPERATURE SENSOR CONVERSION TABLE # # # NISSAN ECR33 RB25DET MAP ADDRESS (E) # # Variable,Start-Address,X,Y,Map size,value,Map-name #UNIT NAME TYPE_UNIT,ECR33(RB25DET),*,*,* #HIGH/LOW octane Fuel map. HIGH_FUEL,&H7400,16,16,256,1,High octane Fuel map REG_FUEL,&H7D00,16,16,256,1,Low octane Fuel map #HIGH/LOW octane Ignition time map. HIGH_FIRE,&H7800,16,16,256,1,High octane Ignition time REG_FIRE,&H7C00,16,16,256,1,Low octane Ignition time #K required number K_DATA,&H7F0A,2,1,2,1,K required number #Void blast-off time IGN_TIME,&H7F88,1,1,1,1,Void blast-off time #Feedback control FB_SWITCH,&H7F91,1,1,1,1,Feedback control #VQ map VQ_MAP,&H7A70,16,1,128,1,VQ map #Fuel/Ignition time TP scale TP_SCALE_FUEL,&H7AF0,16,1,16,1,TP scale (Fuel) TP_SCALE_FIRE,&H7B10,16,1,16,1,TP scale (Ignition time) #Fuel/Ignition time RPM scale RPM_SCALE_FUEL,&H7B00,16,1,16,50,RPM scale (Fuel) RPM_SCALE_FIRE,&H7B20,16,1,16,50,RPM scale (Ignition time) #TTP MAX/MIN TTP_MAX,&H7E90,16,1,16,1,TTP MAX TTP_MIN,&H7E80,16,1,16,1,TTP MIN #TP Limit AF_LIMIT,&H7960,16,1,16,1,TP Limit #Acceleration increase volume #ADD_FUEL,&HE200,16,1,16,1,Acceleration increase volume #Rev.Limit REV1_LIMIT,&H7FB4,1,1,1,50,Rev. Limit 1 #Speed Limit SPEED1_LIMIT,&H7FA5,2,1,1,2,Speed Limit 1 #Add.map 1 ADD_MAP1,&H7B30,16,2,32,1,Water tempe. compensation #Add.map 2 ADD_MAP2,&H7510,9,1,9,1,Knock delays limit #Add.map 3 ADD_MAP3,&H7940,16,2,32,1,Idol Ignition/Knock delays limit #Add.map 4 ADD_MAP4,&H7980,16,2,32,1,Idol stabilization control #Add.map 5 ADD_MAP5,&H79E3,9,1,9,1,Knock delays limit #Add.map 6 ADD_MAP6,&H79F5,2,1,2,1,Variable valve timing-on/OFF Rev.(x50rpm) #Add.map 7 ADD_MAP7,&H7B50,16,1,16,1,Ignition duty voltage #Add.map 8 ADD_MAP8,&H7B60,16,1,16,1,Ignition duty Rev. Just copy and paste everything from each list and paste in notepad and save it as RBwhatever.adr

Take a photo of it and post it here. 210rwkw is about 60rwkw more than a stocker will make. so it is not stock, it may be hiflowed or RB25hiflow. especially if it hits full boost at 5000rpm.

all still for sale really cheap turbo in excellent condition.

Baconer, I would be interested in the catback, gearbox and 2 rims that are still good. $500 is my offer. I know you don't want to part out but I know a guy that wil give you $500 for the whole interior. That makes $1000 so sell a couple of other bits and you have made your cash

Yep, I know exactly what you are talking about. What I usually do is change the VQ map after changing the injector size and then changing the first 5 scales in the fuel TP scale and RPM TP scale. I multiply the number by 1.1 dec. this will keep the AFR's CLOSE to factory up untill 3000 rpm if you are using the factory fuel map as a base and only changing it up high in the RPM range.

I have done around 30 cars and have had good results with all. I have been doing it for around 2 years aswell and have learned from scratch and trial and error as there is very little information out there. it seems to be a bit of an unspoken black art. I have spoken to people that don't want to talk about it to protect the little secret they have been hiding. I see it as a service just like getting a power fc tuned. anyone can offer it but anyone can also do a really bad job. Also, for the non beleivers, have a look at how many load points there are in the stock ECU and than look at how quickly it accesses those. also the maps can be expanded. the stock ECU is a good thing. Marketing has told people to get something that is not needed. I have seen a 900ps GTR running the factory ECU. now why would you do that if it did not work?

yes it is doable. you will need to have the ecu remapped to suit, I have a few base maps that are suitable to use as a starting point if you need them.

Nice one TSL. The Gear I have is a Willem PCB4.5 burner and came from darkwire aswell. really good simple programmer that does all 27 series eproms as well as EEproms (electronicaly eraseble) you can get a UV toothbrush sterilizer from Jaycar and is now only $10!!! part number is CAT. NO. GH1507 you will need to mod it to take a power supply. I used a 9V DC adapter to power it. It has a timer that can be over rided but I just use it 4 times and it wipes the memory of any chip after that time. I buy my eproms from www.futurelec.com.au. They are about $3 each. I use 27C256 in 60ns. (don't use slower than 90ns as the ECU needs chips atleast this fast. I have not gotten round to getting an emulator or consult interface but will shortly. Software I use Live edit hex editor romscan sometimes rom editor Live edit is good because it will recalculate injector size for you and rescale all the boost tables at the same time not just change the K value. Also has an easy to use interface and in not in ENGRISH like rom editor. What order do you do things in when you are tuning TSL? The way I have been doing things is as follows: start with factory map, Change TP limit to 254 all across Change speed limit and rev limit if desired Recallibrate to new VQ table if needed Change injector size if needed K value, lag time and (ignition and fuel scale) write this to chip and put in ECU, test for idle quality and running. dyno the car (nissan ecu allways runs 10:1 or close to with RB20DET map) Analize printout and compare to tune AF display. adjust fuel map for desired ratio (usually 12:1) burn chip and re dyno car to confirm AFR's. once AFR's are 12:1 work on timing map increase 1 degree at a time till peak torque is reached (making sure there is no pinging) no need for any more timing once peak torque is reached. depending on driver richen up area of the map that is used on full throttle changes from gear to gear takeup, (usually 4400 rpm if changing at redline) also back off timing on the corresponding 4 map points by 1 degree this reduces the chance of pingng on hard changes. road test the car because a car will quite often ping on the road that would not on the dyno. Please don't take my methods as gospel I am not a mechanic or a computer programmer. This is just how I have tuned ECU's and have found this method to work for me. How do you guys do it?

That is a really good idea and put all the information in one place. I think there are about 20 users that tune stock ecu's Really keen for this! perhaps we could even get a mini section on SAU to hold all the info and some .bin files?

You have to be really careful using those chips. The ECU is capable of delivering voltage spike that is enough to flash certain parts of the map. This happened and I couldn't find the problem till I looked at the .rom and it was FF in parts of the VQ table and the fuelmap :0 Are you using 2 tunes on the one chip and a pull up resistor to switch? I am running this setup with a mechanic/wife/valet tune that only revs to 4000rpm. At the flick of a switch it becomes a 93rwkw shopping kart

Tangles, let us know what your results are. Dont be suprised if it feels a bit sluggish at 12psi. it really comes on at about 1 bar. I would say the efficancy range is between 14 and 18psi. possibly Aaron can confirm this. Also I am measuring boost pressure 6" from the turbine housing as opposed to the intake manifold. Aaron if you read this can you confirm where the turbos rated pressure is to be measured at? intake manifold or right after the turbo. and it 18psi right? Cheers Aggghhh.... Irratic pissed typing

I am currently having issues with coils but have had some more time to test. I have leaned out the tune to 12:1 and put in new plugs and gapped them to 0.8 and am now running 18psi. after 1/2 hour the one of the coils starts to produce missfire so new coils are on the way but the car REALLY moves. I would estimate there is at least an extra 20rwkw increase taking it to around 230~235RWKW and boost feels like it is coming on much quicker. it starts to get up and go at around 3600rpm. this is still with the 2.75" exhaust. I really have to say this is a great turbo. I don't care if it is bush bearing, it is a better match to the RB20 than a lot of turbos that cost twice as much. I am really happy with the performance and have pushed the little RB20 as far as I think is realistic for a daily driveable car. I couldn't be happier. Cheers