Unichip

Hi all!
Just wander if anyone got this chip. Would be interested how it works in N/A in terms of fuel efficiency.
According to this
http://www.pexcom.com.au/z32cms/e107_plugins/content/content.php?content.365
8-9L / 100km sounds like impossible to achieve.

 

Maybe start with the guy who wrote the article

 

Might have a Unichip for sale if you're looking for one?

 

why not just get your car tuned.. for fuel economy. will be better than any off the shelf tune...

 

I'm currently doing 15L in city and around 10L on HWY which is not bad for stock preset. What else could be done?

 

300ZX != Fuel efficiency! ROFL... What you're getting now is already pretty good. The most effective way to save on fuel - leave the Z at home

 

I have a UniChip in my car....

Under cruise conditions, you will notice no difference in fuel economy as the fuel map is not adjusted when in closed loop as this part of the map is governed by the O2 sensors and the settings in the Nissan ECU. Any changes made by the UniChip will be overridden. However, when accelerating hard (in open loop), then the UniChip control both timing and fuel. Yes, you can trim the fuel here but the trimming is not done for economy, but rather for power.

 

no many roads are flat, not even open road country driving.
What Jedi says is true, O2's will keep the mixture in check in closed loop (Cruise and gentle acceleration / low load conditions), however it doesn't take much of an incline in 5th/overdrive to move into loads on the engine that force the ECU into the open loop areas of the fuel map.
This is when the unichip or other similar solutions come into their own, in so far as you can adjust the fuel delivery closer to stoich.

As for my reported economy, the best I can do is this.
Yellow Z
Filled tank right to overflowing, drove 200km, filled up to overflowing (this is the only way I could be assured of filling the tank the the same level), managed to squeeze in 16.0 Litres - 8 litres per 100km
All Hwy driving, never exceeded 100kmp/h, using cruise control

 

Well, more power means less acceleration and as a result - less fuel consumption

 

ha ha... would like to have that on 89 model.
Genarelly say most of the time I drive around Sydney and nor really often use HWYs
That why unichip could be effective on start/stop driving.
if it saves at least 2-3L per 100 it will return it's cost within a couple years

 

eggs zachary (Exactly)

And pay for itself it will.
You could do the same with nistune, and probably cheaper.
New Unichips are not cheap, and only specialised workshops can tune them

 

yes i know we've got "Autotech" here it's a very good workshop but they are always bizzy
the labour is pretty expenceive which require dyno

 

You don't need a dyno to tune nistune, wideband O2's and a laptop is all that's required.

 

A quick lesson in Physics will show you that the above equation is completely incorrect.
As a one-time owner/user of Unichip, which was fitted and tuned by Autotech(a highly respected workshop/tuning house)I can tell you that there is little to be gained in the fuel economy area.
Driveability is greatly improved. Fuel economy is not.

Increased power is obtained by increased fuel burning(packing more fuel into the combustion chamber).

If you find a way to overcome the above equation, you are well on the way to becoming extremely wealthy(and possibly to being assassinated by Oil Company 'hit men').:zlove:

Increased economy is obtained by using less fuel(at the expense of power).

It has always been thus.:zlove:

 

incorrect.
Increased power with regard to fuel delivery is createdby injecting the correct amount of fuel not more fuel.
By leaning out areas of the fuel map at are traditionally and unnecessarily rich, both power and economy gains can be had

 

Come on Greg.
Cut me some slack(are you sure you're not trying to drum-up some more business for DZS)?

Economy can also be enhanced by knocking the car out of gear, and coasting down hills(but I don't advocate that).

I was obviously commenting from the premise that the engine is already properly tuned, and so, more power is only possible with greater fuel/air charge.
Surely your not suggesting that equal sized samples of the same fuel/air mix will deliver different quantities of explosive force(when ignited within identical chambers under the same compression)?

 

It will if the ignition timing is advanced.

 

Bull.
That's like saying you can get more range from a cannon if you light the wick sooner.
I did say "in an engine that was already properly tuned".[TIS]

 

That's about the worlds stupidest analogy.

If the engine was properly tuned then why would he need a unichip? Standard tunes are rich and have timing pulled out all over the place.