If this is the case then why would someone purchase a kit like the APS knowing that they could not tune it?? A tuner would know that you can't add nitrous and cams to a motor and run a tune meant for a stock motor....it just doesn't make sense. Someone who wanted the freedom to tune and likes to "street tune" would have done the Greddy kit to start with. Just my 2c.

 

That is a good question. Remember that Sung also BUILT his motor himself...in his own garage...so he knows his way around cars...no problems there.

I dont think he totally realized he would be locked out of tuning the unichip device.

 

I also asked him about that, no luck.

It would be cool though!

 

I agree if you arrange to purchase a tuning map that has been developed by the guys at SGP this will be very close to being correct, as long as you are both running similar octane fuel.

Absolutely correct, when you change the comp ratio and cam specs the stock maps would be no where near perect for the application.

100% true, very rich air fuel ratios will wash the cyl bores causing premature piston ring and cyl bore wear, best to get this sorted out very quickly.

Peter

 

Hey GQ are you back from L.A)
I get your list of parts but Pressure sensor is not in the list ??
could you check one more time ??
and I'll give you call around 5~6 pm tomorrow (7:30 ~8:30am Saipan

 

The sheet had the pressure sensor on it. I just sent it again.

Sounds good.

 

GQ, With respect building an engine (engine assembly) and mapping/tuning a FI engine for power and safety are 2 entirely different issues.

I would not let anyone near my FI engine who did not have around at least 5 years/around 500 cars tuning experience, add to the equation low octane fuel, non standard cams, lower comp ratio,etc, etc, and this is really a tuning job for an expert, not someone who can asemble an engine imho.

Peter

 

 

Peter, with all due respect, if we waited for what you are describing above, then nobody would have their car tuned. And to make matters worse, LOTS of professional tuners have blown up the 350Z becuase they had never tuned one before. Tuning a Honda is nothing like tuning a 350Z, IMHO.

Quality, safe, tuning is possible for the do-it-yourselfer. Obviosuly it takes a very deep understanding of tuning cars, and experience certainly helps. But I dont think it takes 500 cars of tuning to qualify to tune your OWN car.

There are those that like to tinker...either out of necessity, or just out of interest and curiousity. I dont think we should thumb our noses at those that want to tune their own cars.

 

I don't think Peter was trying to rain on anyones tuning parade.....but be reasonable. Experience will tell you where the edge is....those without it will cross the line and blow up. Everyone always wants a little more.....a little more power...a little more boost. A novice tuner will not know where the line is. They don't know the warning signs. But hey if someone is willling to keep replacing engines to learn then more power to them. Tuning is an art.......and even the most talented artists need training before they create. I think you are being a little too quick to dismiss the opinion of a company that has been in the turbo industry for so long.Just my 2c.

 

Mate I understand that though there are competent tuners around - the trick is to find the right guy in order to avoid the tuning pitfalls through inexperience with a FI 350Z - and ideally take advantage of a tuner's experience to achieve the optimum engine performance AND engine durability.

I don't think that it's limited to 350Z's alone Lots of hands on tuning experience with a FI 350Z is very desirable.

Whilst quality and safe tuning may be possible for the do-it-yourselfer, I would say that the reason would have more to do with luck and many tuning hours than anything else. An experienced tuner is better equipped (in terms of tuning knowledge and tuning/monitoring equipment) to achieve the optimum state of engine tune with the minimum amount of tuning time (hence low wear and tear on the Z).

Yes, I understand. Curiosity is a wonderful thing and can be very fulfilling however it can, and more often than not does, result in raising the share price of the Kleenex tissue company

In all seriousness, I do agree with what you've said, but in the case of a FI 350Z, I would like to see the tuner working on my car with at least 5 years/around 500 cars tuning experience - particularly if my car had to run on low octane fuel, non standard cams, lower comp ratio, etc. etc.

Peter

 

I don't understand what you saying
about cam,octane,LowComp....
Cause
Nismo cam makes more air in to Piston....
Low Octane makes easy burn......
Low Comp ratio Piston makes lower the Cylinder Pressure.....
and why My engine running Super Rich??????
Now my Car running very lean ...... I do not understand what's your Idea
But my car running super super rich//////////

 

All of the above dramatically changes the tuning strategy required, in particular bigger cams can cause poor vaccum at idle.

Tuning/mapping an engine with a lower comp ratio and bigger cams is a job for a specialist tuner imho, to achieve high power with safe ign timing, air fuel ratio, and boost pressure across all load and rpm sites requires a fair degree of tuning experience.

Thanks

Peter

 

You can always sell your Unichip piggyback after you got eManage. You would lose some money on the Unichip, but it should still be cheaper than shipping your car to LA everytime you need a tune.