Just curious why the technosquare ecu reflash is better than say getting a wideband o2 sensor and tuning it yourself with a s-afc2. The only advantage to technosquare I see is the raised rev limiter; am I missing something? Here is the way I see it:

Technosquare:
$595
One time flash- generic mapping non-specific to each car
7200rpm rev limiter

Wideband + s-afc2:
$650ish, can be had cheaper if you shop around
Can tune for each new mod
No need to remove/mail ecu

CERTAINLY NOT bashing technosquare; I think their product is great, just trying to figure out exactly what gives it an edge. Does it increase throttle response or anything I haven't heard about? It's been kinda out of the news lately so I haven't heard much about it.

 

When you tune with the AFC, it adjust the MAF voltage to trick the ECU into thinking there's more or less air coming in so the ECU adds or removes fuel. The downside with this method is that if you adjust it too much one way or another, it could also effect timing and I'm not sure what else.

Ideally you would first have TS reflash the ECU to whatever mods you have, then fine-tune with the AFC and wideband 02.

 

ts also can also address timing. and changes af without adjusting maf signals. whereas the safc can detect knock and is much easier to change stuff.

i chose the safc and will likely soon get the limited spec ts reflash just for the rev limiter increase. 600 rpm is a lot more to play with.

oh also with the wide band all you can do is get a specific af you would be better off doing dyno time to see what af will give you the most power.

 

Some of the other things with the ts did with my ecu:

100% Throttle open correction
Tip in off idle fuel fixed for take off
timing corrections (great for 93 octane)
fuel map re-adjusted
speed and rev limit removal

TS will not leave you high and dry if you have issues or think the flash is wrong. You may loose some driving time, but they are real reasonable about reflashes.

I think the ecu reflash is the "correct" way to tune instead of a signal interceptor method. I also think the ecu is much more inclusive package.

The only advantage I see to the SAFC is user control . . .but that could be a disadvantage for some too. One of the biggest disadvantages for SAFC is the splicing you have to do.

 

if you decided to do both your looking at over 1k....and what are you really gaining with the fine tuning at that point...probably not much. i think technosquare would get you close enough...if you go safc2 your looking at install and dyno tuning as well as the $600

 

...doesn't TS charge you everytime you want a re-flash? I'd call that another advantage.

Btw, does everyone get the same flash from TS??? regardless of mods???

 

The TS flash will be real close for most people even if additional mods are later added. If it is a mod path that has been thoroughly tested (such as mine) then reflashes could be more beneficial. They have different flashes, but I would pick the one that best mates up to my mods that has been proven. If I were planning on getting certain mods in the future I would go ahead and get it flashed accordingly. I don’t think hp will be lost or engine harm can be done if you put my particular flash on even a stock car. It will run a little rich if anything.

Remember with SAFC you are altering signals and can only tune based off of A/F and then dyno figures if you want. A certain A/F value may not always mean more hp, so without real dyno time it is worthless. The cost of a reflash and the price of a retune will be really close. Even then you got to ask yourself is a re-flash or re-tune price for a new mod really worth 1-2 hp

 

a typical dyno tune is anywhere from 1 1/2-3hrs of dyno time. the cheapest local place for dyno time is 125hr so do the math its not that cheap to get an safc done right. like vandy said the ts is overall better but it is not perfect.

 

I went with the SAFC because I wanted to be able to adjust my A/F anywhere and anytime. Often after a new mod. I got mine for under $400 and $80 for install.

And why dyno if you have a wideband o2 that datalogs? and its running on real road load too. Wideband I got costs ~$350. I got the LCD display so it was $100 more. $40 to install.
~$1 k and you'll have it all.

Besides, if you even if you went with TS, you most likely will still want a wideband as a monitor.

On my last dyno(before wideband installed), I gained 4 whp by richen up the SAFC. I was running way too lean. But it was just quick "guessing" adjustments between the 3 back-to-back runs. Not fine tuning. Eventho at the last run I end up richen it too much, it still shows gains from the 1st run. But rather than going back and have a private section($60 per 3 runs) for fine tune, I went and got the wideband with datalogging ability. Which lets my labtop read out the real time A/F ratio(just like the dyno) and able to save it for print outs.

With that being said, I would still TS my ECU tho. Only for the rev limiter and the true wide-open-throttle fix.

 

I dunno... to me it's like changing oil. I'd rather do it myself. Plus it seems to me that a custom map will always be better than cookie cutter. I can understand why people would choose TS though.

 

what's the wide open throttle fix?

 

Per TS,

Our throttle does not open 100% at full throttle. It opens only to around 85% for some reason. A TS flash will fix it.

 

Hey Phatmitzu,

Where did you get your Wideband? I just installed a GReddy eManage in my Z last night (you can read all about it here) so now I need to get a Wideband A/F gauge so that I can fine-tune. I was looking at getting the Dynojet Wide Band Commander, but it's about $500!! I like the price you got yours for A LOT better and since it data-logs too, it would be perfect I think. You also mention that it has an LCD screen that you had to buy seperately? Does it just hook up with a video-out type RCA connection, or is it proprietary? I ask because if it uses a regular old RCA connection, then I can hook it to my Clarion Head unit and see it on it's screen. That would be shweeeeeet!!! Let me know.

-Chris

 

Hey Chris,

I got mine from its website here http://www.zeitronix.com. Yeah the LCD is separate, but I got it together as a bundle. It uses a phone line wire like those radar detectors. The logging cable is a serial port cable. I got the serial to USB converter for my labtop. Its does give out analog signal for any other stand alone units.

 

Do you know if they also fix the thing where when you tap the brake while on the gas, it closes the throttle to 25%? .

 

wth.... that's dumb. I've never heard of that. Would you happen to know if anyone has tried to get this fixed at a dealer? I mean... is it present in all z's? or just seen in some / many / a few z's that TS has seen?

 

The dealer will probably look at you funny.

Yes it's in all Zs.

 

I just took a look at that zeitronix unit. I assume you have the Zt-2? Shoot! I was hoping that it would have a regular RCA output so that I could hook it up to my DVD screen. I saw the "analog output", but didn't really understand what it is for. All it shows is a graph? Is it to hook up to the SAFC (or eManage in my case)?

Does anyone know of an A/F gauge that has an RCA type video output?

-Chris

 

I'm lookin at you guys funny right now...

I won't argue this since I'm obviously the late bird here but are we sure this is true? I mean, if it's true why wouldn't there be a nissan fix for it?

 

Nissan could have done it for several reasons on purpose. Some of my guesses off the top of my head are (ONLY guesses):

1. Stock upper plenum, lower plenum, and intake manifold could not take advantage of 100% open TB.

2. Emissions (yeah that’s stretching it)

3. Easy upgrade for future model HP bump (like 295 next year).


I think the last one is a good bet at what they were thinking.