Should I get a tune ??

[RocKstR350z]

IV been doing a little bit of research here and there but still would like some input on whick one i should get. My mods now are topspeed 3" exhuast and soon to be JWT popcharger, topspeed-y pipe, test pipes, and motordyne plenium spacer. MY question is will I benefit from a tune ?? And if so which one should i go with ?? I hope to tune it myself if possible and would like to stay under a grand

[Hal@IP]

To best answer the question it would be nice to know where you are starting from... a baseline dyno pull with AFR, or a Cipher log with afr.

The answer is yes - you will benefit. To get the most out of it would require a quick dyno tuning session... but if you prefer to do it yourself you could go the reflash route. This can work one of two ways:
1. I send you a reflash cable (osiris) with a modified map for you to upload. You load that and then make a pull while datalogging. Send that back to me, I will adjust the map if necessary and email you a new map to upload. Repeat if necessary.
2. Purchase osiris tuner and you make adjustments to the map yourself. This does not sound like the best option for you.

[RocKstR350z]

Typiclly how much does number one and number two cost ???

[RocKstR350z]

Also will i be able to remove the speed limitier with either number ??

[Hal@IP]

Both can remove speed limiter, enhance the drive by wire throttle system, remove CEL codes, etc.

Option one is $499 (plus additional mapping fee if many changes are necessary depending on complexity of setup - yours should not be difficult) and option two is $699.

[RocKstR350z]

So you send me a cable which i hen hook up to my laptop and my car. I open the program and itll load into my ecu. I do a dyno run while i nthe datalogging mode which i assume is on the program you send. THen you make any adjustments and i do another dyno run the same way as the first to insure that it all went well ??? Did i get that right??

[Hal@IP]

Yes, dyno would be ideal... but most people just find a private section of road that they can make a pull to redline while logging in the program.

[RocKstR350z]

I live in the country with PLENTY of roads to do that safely on everyday. Do oyu think itll need to be reodne or do you think the initial map will do just fine ?? what kind of gains are we talking here ??? NAd if battery is disconnected will it erase???

[hpro350z]

so are we able to switch between maps if we get 1st option

[BonesZ33]

Spending 500 dollars on a tune for a N/A I/E application is a waste IMO.. save that 500 dollars and put it towards a future F/I kit.

[kenpo_350Z]

Why would it be a waste. I have a popcharger, ur underdrive crank pulley, kinetix test pipes, Motordyne 5/16" plenum spacer, and RSR ex mag exhaust. I was really thinking about a tune as well.

What difference would a person notice from getting a tune? Would it be better to get gears or some other mod than a tune?

I think 500 seems reasonable if you can really get some noticable gains.

[03threefiftyz]

It's worth it.......may only gain 5-9whp in peak gains, but there will be sizable gains under the curve and in partial throttle. Throttle response is also improved. I also still get 28-30mpg on the highway while on the performance map.

[Z1 Performance]

Peak gains will depend on the car, and the exact mods it has, as mentioned. My own car way back when (2003) got nice gains (12/12 as best I can recall) when I had it flashed after installing high flow cats, exhaust, and intake. When I installed the UTEC and retuned in December 2005 (no other mods done to the car), the gains went up even further. Future tunes eventually got me to roughly 40 whp over stock, with just basic bolt ons, no plenum spacer, on pump gas. I think those are nice gains, but I suppose others will disagree. It's all about perspective. Details are in my build thread in the NA section

To me, it's only a "waste" if you

1. don't care if the car may not be operating to it's peak efficiency/reliability
2. you are going to do a full balls to the wall forced induction build in the very near future (and even then, the tuning side of things is far less expensive than the hardware/software purchase, and this ecu mod will set the foundation for whatever future mods you do to the car
3. you're selling the car

everyone is always so quick to say "just get FI" but as has been said many, many times, FI is not for everyone, for a multitude of reasons. Far more people have the simple bolt ons than forced induction builds.

[RocKstR350z]

It seems to be worth it. IM not expecting my car to be doing wheel stands or anything but for the price it doesnt seem unreasondable. Any more input would be nice from people who have simple bolt ons and a tune would b e nice

[Z1 Performance]

there are years worth of threads on it

[03threefiftyz]

[kenpo_350Z]

I agree, it sounds like it is really worth it! Why wouldn't you want your car to run at top performance.

Z1 those are some huge gains you had. Did you do your tuning on the dyno or just using a lap top? I don't have a dyno close by and was wondering if it is worth it without taking it to a dynoe.

Also which tuning device do you guys feel is the best. The Osiris, UTEC?

[03threefiftyz]

My personal preference is Osiris.......it's cheaper as well. I also picked up ~45whp from bolt-ons/tune.

Utec might be an option for you as well though since you don't have an Osiris tuner within 300-400 miles. The e-tunes are alright, but not ideal.

[Z1 Performance]

all my previous tuning was always done on a dyno

interestingly enough though, with all the work my car now has (roughly 100whp over stock) I've been running the past couple of months on just a quick street tune (using a wideband, and a boring timing curve). Reason being is I am still up in the air about some changes, and I'd rather just tune it one more time and be done with it. Since my current map is very very safe, and the car is happy with it, I am content leaving it as is until I figure out my next mods (if any)

[kenpo_350Z]

Thanks for the quick responses. How does the UTEC differ from Osiris. You were talkinga bout how the etunes are not ideal. I think the closest dyno is around 3 hours for me. Not too bad if I really have to.