Silvia Club of NSW

Just wondering if anyone has actually got a jap delivered car with a remapped ecu, perhaps tuned by mines or some other company? I personally dont want to go to an aftermarket ecu as im only aiming for about 170-180rwkw with a gt2871 and a few other goodies, but keeping stock injectors. (this will be on a type X 180)

The plan was to get a remapped eprom wth a better fuel map and ignition timing map and optimise it on a dyno using an afm signal modifier like the safc. Ive had experience with changing eproms and programming them but i need a decent map from somewhere from a similar setup.

Anyone have good results? bad results? any thoughts at all?

There EVIL

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Disclaimer: If you have'nt worked it out by now I CANT SPELL FOR SHIT.

these r sumthen u got to be carefull with.... particularly when buying randoim ebay jobs.

generaly u can get standardised lap and blitz type ecu's for ur engine which are just mildly better than stock and have no boost or speed cuts.

weve had good results with a blitz access on a certain CA. monsterous increase and still pumping plenty of gas @ 17 pounds.

ask if you can get the ecu on consignment for a dyno run before u purchase, or atleast test drive it!!

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get your ecu remapped in australia.

you cannot simply buy a second hand remapped ecu or a guesstimated rom and expect good power.
sure on some occasions you will, but at the end of the day you will always net more power if you get your own car remapped on a dyno.

Stupid people only buy them for the brand name. omg bro its got sick mines ecu

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thats fair enough. i think ill just not be a tight arse and get a power fc. lol.

or wait till DR Drift is back up in Sydney again and have him remap your factory ECU, probably the best bang for bucks mod you can get

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93 180sx
SR20DET, GT2871 .86
13.2@105mph, 210kw@15psi

...i rang Unique and talked to John about this and a few other questions i had and he basically said the same thing. Jap remapped ecus apparently run your fuel leaner and advance the timing so they tend to detonate really badly with our fuel and weather conditions. I guess i wont bother with it unless someone can do it properly. Then again, with power fcs going as cheap as they are, its probably worth spending the extra few hundred to begin with and do it properly.

What you said there is spot on, Do it that way, Power FC will be so much better

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Disclaimer: If you have'nt worked it out by now I CANT SPELL FOR SHIT.

why will the pfc be better? at the end of the day a power fc will give the same power and reliability as a remapped ecu if you get a good tuner.

I see no advantage apart from the ability to have a hand controller, the boost control, and the wank value.

tuning cost may be a tiny bit cheaper but the initial outlay for the pfc is what makes it more expensive.

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The problem is, as far as i know, you cant tune a stock ecu map in real time.

With the use of a wideband o2 sensor, you can tune a PFC in real time for all load points on a dyno and get your fuel/air ratio pretty close to perfect.

If someone has got a way to remap a stock ecu in a simlar way, id love to try it.

another advantage with the powerFC is that just about anyone can tune them. Remapped ecus are a specialist thing, because most places dont have those handy handy chip burners

Weighing it up, both options will probably cost as much to purchase, install and get the first tune, however a powerFC will wind up cheaper in the long run if youre continually changing bits n pieces and requiring retunes.

My car is still tuned by Nissan.. its doing a fantastic job so far (just because I can see the smoke from the exhaust in the rear vision mirror doesnt mean anything OK )

you can infact remap in real time, a good remapper would have eeprom emulators, which simulate an eeprom and is real time updateable, then when they've finalised the map they burn it to the eeproms and install them.

it is true that more people tune pfcs

but yeah each to his own.

If you think pfc is better go for it. Im just getting the facts on the table, dont let me discourage you, I think they are a great unit, but for budget concious, there are other options that will net similar results

I will be getting my car remapped shortly (few months), I'll post up my graph and total costs after its done

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an eprom emulator may do the trick. Is this done with the laptop or pc taking the place of the original eprom and changing the map in real time as the engine runs? or does the pc map out the 02 readings through the rev range and load points and compare them to the originals and compensate? one problem i see is that the stock o2 sensor isnt wideband and cant really be used for tuning accurately... the more i look at this the more it seems that there would be a bit of guesswork involved with this method. It would be nice to see dyno results for comparison tho.

they place a wideband in the exhaust like all dyno tuning.

its done via pc or laptop.

they modify the fuel and timing maps with rpm and load untill the desired afr is acheived.

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sweet. So where can someone get this done?