APS

Over the last 6 months APS has been testing Unichip tuning technology on the OZ spec 350Z and I can now report that the power gains are very worthwhile.

All of the dyno and in field testing has been in conjunction with other popular aftermarket mods............the latest example of a Unichip computer installation was on a Z car with a cat back exhaust system and the power/torque gains are significant and the throttle response in partial throttle conditions is much crisper.................a really noticeable difference across the entire RPM range.

I must say I am very impressed with the vast improvement of full throttle power and the engine is now much smoother than standard.

Peter

APS

zuff

Dyno chart pls!?!

This post is tantamount to torture! We have a piggyback ECU and it makes great power but we won't say any more.... ahhhgggg!

C'mon Peter...details pls (ie.. price, dyno charts, details if you advance timing and what rpm, is this acheived with A/F settings only?).

ZZZ-35

Great!! I believe this claim before any of Powerchips crap advertising.

David

harryw

I smell "GROUP BUY"?????????


As always

H

nuff

if the exhaust and chip has proven gains I'll join the gb.

mchapman

iTrader: (1)

Estimated price?

I did have a slight problem with the Unichip I had on my Celica. At idle the revs would drop right down, the engine would shudder and almost stall while it was in Drive every few minutes and if the aircon was on it would do it every 10secs. I had to keep putting it into Neutral to prevent this.

Hopefully this wont happen on the Zed.

APS

Sorry mate it's not intended to tease you...............just a quick update to let you guys know we are very happy with the Unichip computer testing so far...................the results look very promising...............and the owner of one of the test cars is a forum member so maybe he might have some input down the path.

We won't release the Unichip product for the Z until we are 100% happy (this should be within the next 4 weeks if all goes to plan) with the feedback from the test cars and owners.............this is just a little bit of advanced product info to let you guys know we are hard at it and all is looking very positive in terms of good power increases and overall driveability.

The Unichip product can adjust air/fuel ratios and ignition timimg (advance or retard timing) across all rpm and load/throttle sites.

I don't have final pricing details yet though my best estimate would be approx $1290 installed and dyno tuned (custom mapping for each engine to suit owners mods) with before and after power graphs.I will definitely post power graphs of the Z cars I have with Unichips installed in the very near future.

Peter

APS

Loco350Z

not to sound to new, but why is this better than getting a reflah from technosquare with a lot less damage to your wallet?

Z350Lover

iTrader: (2)

COOL... nice Peter! It is always good to hear some good news on the ECU for the zed!!!

I guess it is a lot more worth while to get the cats first, then go for the UniChip, else I will need to get the zed tuned twice....

cheers,

richie

APS

Mate this is always possible (unfortunatly) though we have have better trained Unichip dealers in sydney today than ever before.This in my view is the core of most problems we have seen or experienced and I believe that a high percentage of Unichip problems originate from Sydney.

Most Unichip problems that we see at APS (over 90%) are tuner related not product related, that said it's always possible that any product can have a small number of products which are defective in some way, this should not occur though unfortunatly it does from time to time.

This is the reason why we test a number of UNICHIP Z cars prior to product release to ensure the product is 100% glitch free.

Peter

APS

sundog

Is this all Sydney based Peter? Is/will there be a Melbourne based distributor and someone capable of installing & tuning the chip down in Melbourne?

I don't deal with Nissan for servicing anymore and my current mechanic is an ex-Nissan performance vehicle engineer very experienced with modded and HiPerf vehicles. Is maintaining a vehicle with this chip installed within the scope of that sort of person or is it a specialised service?

Regards

Jim

APS

Good question and there is of course a good answer to every good question.

The ultimate state of engine tune can only be achieved by custom tuning (mapping air/fuel ratios and ignition timing) the engine to ensure the best possible power,torque,fuel efficiency, and engine response under all rpm and throttle conditions for the fuel type and octane rating.

No 2 production engines are identical, and if fuel pressure alters slightly from engine to engine the fuel maps will need to be different (remapped) to ensure optimum power and fuel efficiency for the engine in question.

Then you need to take into account all of the different combinations of mods customers can have on the car, it's impossible to get a good/perfect state of engine tune with a different combination of mods (and fuel octane) which is unknown to the tuner. Reflashing the computer is a little like russian roulette in my opinion.

The real answer is to this question is how well do you want your engine tuned, if you want maximum power and torque and the best engine response combined with excellent fuel efficiency then real time dyno tuning is the only method to achieve this result.

We are so lucky in Australia to have many true load based dyno's so engines can be tuned/mapped correctly (this can't be done on inertia type dyno's common in the states) and the general knowledge of computer tuning in Australia is much higher than most countries on the planet.

Peter

APS

APS

That's for sure richie, it's always best to fit up the exhaust system, air cleaner,and any other mods before installing and tuning the Unichip computer if possible................this is the most cost effective method to achieve the best state of engine tune.

Peter

APS

APS

Jim, APS is based in Melbourne and we have a number of excellent Unichip dealers in both Sydney and melbourne (in all capitol cities for that matter), if your in melbourne and you choose to have a Unichip installed and tuned your are also welcome to have the work conducted at APS.


Jim the car can be serviced by any competent workshop though the engine tuning should be left to a fully trained and experienced dyno tuning operation.

Peter

APS

REDZED

I am a little confused about why the Unichip can't self tune....

The Z has the pre and post CAT o2 probes and it would seem for standard engines with no mods that a generic map should be ok when coupled with the standard inbuilt trim system. Where am I going wrong?

APS

Not sure what your saying here.

The lambda (o2 sensors) sensors are only intended to trim air fuel mixtures whilst in closed operation (to hold air/fuel mixtures to lambda 1 whilst in cruise conditions) so what happens when you are using throttle positions outside of the closed loop area? The o2 sensors have no input to this condition, that is throttle positions outside of the closed loop area.

Peter

APS

frosty

I'll have two and I'll piggyback 'em.

Then Harry will have to go TT.

FRIZZLE

Flasher

Interesting stuff.
And can I say ABOUT BLOODY TIME !
Finally some power gains with a plugin solution

Any hint at what kw to expect?

mchapman

iTrader: (1)

He posted an addition 11kw if you already had the APS exhaust, which by itself gets 3kw more than the HiTech one and it has more power and torque all the way accross the dyno chart.

So if a HT can get 18kw + 3kw = 21kw + 11kw = Possible ~32rwkw

If you got both their cat back exhaust and the Unichip.

Flasher

Possible 30 kw

Sounds pretty sweet to me.