different cpu, different power levels?

[glitched]

So I read in grassroots motorsports about swapping out miata computers because some have better Programming or whatever and they actually make better dyno numbers...

Anybody ever try this on nissans, or 240's?

[modulation]

So I read in grassroots motorsports about swapping out miata computers because some have better Programming or whatever and they actually make better dyno numbers...

Anybody ever try this on nissans, or 240's?

I don't even know where to start.They don't change out the ECU's because they cpus are faster.They change them out because their maps are different.What is a map?Read:http://members.aol.com/dvandrews/ems.ht ... c.php?t=47

[glitched]

I don't even know where to start.They don't change out the ECU's because they cpus are faster.They change them out because their maps are different.What is a map?Read:http://members.aol.com/dvandrews/ems.ht ... c.php?t=47

[modulation]

But seriously do you understand now?

[glitched]

But seriously do you understand now?

I know you were trying to help, but you dont understand that your post wasn't necessary.

Where do I begin?

for one, i never said anything about faster cpu's so i have no idea where you got that.

2nd, I'm not a noob, and I know what a Map is.

My question was has anybody ever tried this trick in the nissan community with any success...

I cant believe i had to come in here and explain that...

[danielsan]

modulation WTF? no where in his post does he mention anything related to faster cpu's. go back and re-read what he asked.

i have heard that auto ecu's have a better fuel map. though i would think they would be the same.

[modulation]

Well lets see...The title of his post is "different cpu, different power levels?" WTF does it mean then?No one calls a ECU a CPU.So his title implies that swapping to a different cpu = more power does it not? (Or he's a newb for calling a ECU a cpu (or I think both.)

All the OP has to do is spend 5 minutes searching yahoo/google/these fourms to find the answer.

I gave him 2 links one of which was specifically about Nissans (which answers his question.) If he would have searched the forum he would have found hundreds of messages about nistune/bikirom/stanza ecu's etc, or he could find sites like hybridka.He might as well ask what cat-back exhaust he should get.

**** him and **** you. You people who can't spent 5 minutes searching for **** and those people who defend them are everything that is wrong with this site.

If he wasn't a newb he'd know what people do about turbos and engine management. If he wasn't a newb he'd know about 240sx "tunes" companies that sell/sold them (Jim wolf etc.)

Also I've edited my post like 1000 times now but I don't see where it mentions that.. I'm fairly sure his first (unedited) post contained the words "faster processor" which is also where I got that Idea.

It's obvious he's a newb.He might as well ask what cat-back exhaust he should get.

[brizanden]

^u sir need to calm down. he isnt a noob no need to treat him like one when u in fact are. u simple got confused by his title. everyone needs to chill and thanks for the good read.

[glitched]

Also I've edited my post like 1000 times now but I don't see where it mentions that.. I'm fairly sure his first (unedited) post contained the words "faster processor" which is also where I got that Idea.

My post is 100% un-edited in its original state.

Like i said, i know you were just trying to help, but it wasn't necessary.and it just made it worse when you came in the second time and asked if i understood yet... I wouldn't even have responded like i did if that wasn't there...

Yes, i know about tuning and aftermarket chips. but thats not my question.

[glitched]

forget it, can a mod delete this thread... I'm just gonna buy a couple stock computers and try em out at the local dyno myself and maybe provide some actual valuable information to our community.

[modulation]

forget it, can a mod delete this thread... I'm just gonna buy a couple stock computers and try em out at the local dyno myself and maybe provide some actual valuable information to our community.

Are you a moron?If all Stock ECU's have the same maps (which they do in the areas you are concerned with) then how would switching out ECU's make your car faster?

Seriously what is your logic behind this?

The reason it probably works with Miata ECU's is that the late model cars have their maps tuned better then the earlier ones.


Modified by modulation at 10:14 AM 7/7/2008

[danielsan]

modulation: you need to calm down and quite crying like a baby. if you notice the OP never edited his first post. you read wrong and accept it instead of telling me to f#$% off, grow up man. he asked simple question and you just made the whole post into a pissing contest. log off and come back when mature just a little more.

[danielsan]

try an auto ecu i want to know if its true that the fuel map it has will give you a small boost in power.

[Vegascorbin]

Modulation: CHILL

The OP asked a resonable question in a resonable manner. Could he have found the answer with differant search terms? Maybe or maybe not. That is no reasion to beat the guy down when YOU MISSUNDERSTAND HIS QUESTION.

glitched: As a part answer for you. Our 240 has the standard problem of cutting out at RPMs above 3,000 or 4,000 Depending on ECU. (We have swapped the MAF along with a number of other things but thats for a differant thread)

We have tried 3 different ECUs while fighting this problem and it will change the "cut out" point from a low of 3,000 rpm to a high of 4,250 rpm. JUST WITH THE ECU!. If all ECUS were equal why does Jim Wolf list something like 20 or so with the same specifications? (year, SOHC, same Compression, Federal emissions, Manual Trans)

Why when you look at the ECU with the covers off the program chip has different part numbers from one unit to the other?

An alternate title for this thread may be "ECU Tuning for those that can't afford It" or "Poor Mans ECU Tune"

[modulation]

Even if I misunderstood his question (which I didn't because in the end he's still talking about swapping ecu's to gain speed even though they contain the same maps) it's still a stupid question he could have found the answer to quickly by searching with common terms.

His questions shows he doesn't understand how engine mangement works.

glitched: As a part answer for you. Our 240 has the standard problem of cutting out at RPMs above 3,000 or 4,000 Depending on ECU. (We have swapped the MAF along with a number of other things but thats for a differant thread)

What are you talking about?Cutting what out? This makes no sense..

Why when you look at the ECU with the covers off the program chip has different part numbers from one unit to the other?

Because most companies have several manufactures for the same part (especially for electronics.) Even though the chips have different P/N their function or the data the store is the same...

Go here and download the ROM pack.. http://www.nistune.com/downloads.htm

You will see that there are only 3-4 different ROM images for all S13 Ka24de's. The only difference in them is located under 60% load and under 3.5k rpms so it wouldn't affect performance (just cruising.)If you don't believe me download romedit and look for yourself.

You people don't know anything about ECU's and electronics and it shows.Stop trying to defend your ignorance and educate yourselves.
Modified by modulation at 4:09 PM 7/7/2008

[modulation]

try an auto ecu i want to know if its true that the fuel map it has will give you a small boost in power.

It's not true. I just checked for you.Opened up Nistune, did a diff/compare between the AT and Manual Fuel maps.There is no difference in either the 1991 and 1993 years in any areas which would count for performance.

[danielsan]

It's not true. I just checked for you.Opened up Nistune, did a diff/compare between the AT and Manual Fuel maps.There is no difference in either the 1991 and 1993 years in any areas which would count for performance.

ah thanks for letting me know.

[glitched]

If all Stock ECU's have the same maps (which they do in the areas you are concerned with) then how would switching out ECU's make your car faster?

Seriously what is your logic behind this?

The reason it probably works with Miata ECU's is that the late model cars have their maps tuned better then the earlier ones.

Modified by modulation at 10:14 AM 7/7/2008

From the article that I read:

"Spec miata experts have found that miatas have a wide veriation in ECU tune. A common trick is to test serveral different ECUs to find the one that develops teh most power. Our dyny ace pulled out several from his bin of spares. the dyno showed that one ECU was better than the rest, boostin engine output to 118 horsepower. even more telling was an increase of 3 lb ft of torque."

[glitched]

Even if I misunderstood his question (which I didn't ) it's still a stupid question

You people don't know anything about ECU's and electronics and it shows.Stop trying to defend your ignorance and educate yourselves.

Modified by modulation at 4:09 PM 7/7/2008

Wow bro, you still haven't taken your chill pill yet?

Calling people stupid and ignorant? stop acting the fool man...

[modulation]

"Spec miata experts have found that miatas have a wide veriation in ECU tune ..."

The reason it probably works with Miata ECU's is that the late model cars have their maps tuned better then the earlier ones.

See the word "tuned" in my statement? Different year/location ECUs in miata's have different maps.

There is not a wide "veration(sic)" in ecu tunes for Nissans or 240sx. The links that I gave you in my first post talk about this but I guess you can't take 5 ****ing minutes to read them you lazy tard.

[brizanden]

wow... someone is needin a vaca bad

[Vegascorbin]

#1 again CHILL#2 The part number I am refering to is the paper p/n tag placed on hte ROM chip when it is programed not the Manufactuers p/n#3 My car cuts out for some reasion we hav enot yet found. The point at which it cuts out will vary depending on which of the 5 ECUs we have that is installed. I am not saying why only that this is what happens.#4. I have a degree in electronics and over 25 years in the field.#5 you are refering to computer programing which is completely differant than electronics.#6 take a vacation and chill for awhaile and please stop being mad at the world and taking it out on us.

[modulation]

#1 again CHILL#2 The part number I am refering to is the paper p/n tag placed on hte ROM chip when it is programed not the Manufactuers p/n#3 My car cuts out for some reasion we hav enot yet found. The point at which it cuts out will vary depending on which of the 5 ECUs we have that is installed. I am not saying why only that this is what happens.#4. I have a degree in electronics and over 25 years in the field.#5 you are refering to computer programing which is completely differant than electronics.#6 take a vacation and chill for awhaile and please stop being mad at the world and taking it out on us.

2. It doesn't matter what number of the part is, it still holds the same information. Once again if you don't believe me download the rom pack and count the number of bins in there for a 240sx s13 ka24de ECU. There aren' t that many. Then look at the bins with romedit and compare them. They don't differ in any areas that count for performance. Even different part numbers from the same manufacturer can do the same thing.For example part number SST27SF010, SST27SF020, SST27SF012 are interchangeable. Part number #27C25685 which was used for z31 nissan ecu's is no longer available so people use a eprom with P/N #27128 instead.It doesn't matter though, because they all store the same "computer programming." Which is all you need to mess with on the ECU. The "computer programming" is the tune (which can also be called the maps, the binary image etc etc etc.)

3. This statement, and the fact that you can't figure it out make me seriously doubt you have an EE and 25 years in electronics. What does "cut out" mean? Could you define it any better or is that your engineering term?4. Define "degree in electronics." 25 years doing what? Repairing transistor radios? 5. What are you referring to here? "ECU tune" and "maps tuned" mean the same thing.What do you think they tune on the ECU? You don't change out resistors or processors when you tune a EFI computer. It's all done by what you call "computer programming" and then flashing/writing the programming ( what people call a table/map/binary image) to the electronic device that stores the map (what people call EPROM/nvram/flashram).

S13Ka24de ECU's don't have a EPROM that you pull to flash.

[Vegascorbin]

Whatever.you are too stuck up with your own self importance to bother with.

Good bye