depends how you do it. If you go to a shop and get dyno'd it usually runs around $600, or you can do it yourself with datalogging and etunes for as low as $450, plus you get the uprev cable

To SS Firehawk,
Who do you recommend for a tune in Vegas?

better if with a tune
 

hi i have a 370z 40th anniversary with stillen headers, typhoon intake and cnt cat back. the uprev tune made a huge difference ,the car respond better you deffinetly see the difference in power. before the tune it gave around 276whp with the mods in a mustang dyno and after the tune a 296.4whp on 91oct and a 300whp on 104ct

:tup:


Sent from my iPizzle using magic and new-fangled science stuff

FI CBE ordered. I'm guessing with this as my only mod I won't need a tune. I don't track it and don't drive it super hard as it is my dd. just some spirited driving here and there.

Lol nope, bolt and go!

Unless you're forced induction, you don't NEED a tune. Your car can run fine without it with full bolt ons. The ecu learns quite well.

However you can BENEFIT from a tune with full bolt ons. But just a cbe? Nah, bolt and go lol.


Sent from my iPizzle using magic and new-fangled science stuff

Tune required?
 

So, I just bought my 2012 370z, and I'm already buying stuff to mod it somewhat. Now, I put an intake on my boss mustang and needed a damn tune for the thing to run right. Do I need that if I put an exhaust on my Z and add an intake later?

You never NEED a tune, I don't have a tune and my car works fine

Only IF you want the optimal performance out of the mods you added.

I have a Fast Intentions cat back exhaust system on my car w/o a tune. It's been running this way for the last 3 years just fine.

So you don't NEED to. ... but I'd imagine you would want to once you do CAI and exhaust.

Here we go again about no tune with mods.

If you haven't checked your car after you modded it then you have NO way of knowing how it is running,and if you can tell just by driving it around then you must have psychic powers or are using the force.:shakes head:

i got test pipes, stillens gen 3, no tune, my cpu got used to the mods that my cel light isnt even on anymore

Read my post above

You guys buy 30k+ cars buy all these mods and don't get it checked,sounds like allot of people being cheap,or you guys don't know nothing about cars.:shakes head:

Baer383, who do you go through for tuning? They use an EPROM or you have an aftermarket ecu? The only experience I have with tuning cars is my 300zx tt and that's 20 years old

So just as an fyi for myself. If I run a Stillen cbe, keep the cats and install a Stillen G3 cai with no tune. Will I throw a cell? I know I shouldn’t be due to having the cats and have had other cars with this type of set up(cai/cbe). But I’m reading a lot on the Z getting cells after G3's with only having cbe/cai? and per Stillens web sight the discription says it might throw one. Any insight would help.

... You shouldn't get a CEL with HFCs, CAIs, and a CBE if your installs went correctly.

I tuned mine myself using Uprev, I get on everybody about this topic b/c the ECU can only compensate so much 100% is on the money 75% is as far as it can go to remove fuel and 125% is as far as it will go to add fuel,if you do mods and don't get it checked you don't know where you are.
Let say your at 125% at 4500 rpm and don't tune/check it and your ECU get into sees that it still has to add 3% more it can't b/c your maxed out at 125% that's why I tell people to at least go get it checked just to make sure.

........Really come on now pal. HFC I’m not talking about. I know the HFC will throw a cell unless you have the bung or tune. I’m talking about just CBE/CAI and KEEPING THE CATS. There are threads on this forum that people are stating they are throwing a cell with just 2 breather mods with no vacuum leaks and having the mass air flow sensors cleaned with cleaner. So this is why I’m asking in theory there shouldn’t be a cell thrown. Also I have read a lot of threads stating you didn’t tune. What are your mods?

Will I be ok with an M370 paired with the Gen 3 intake?

yes

Yes. It's mostly when you have three NA mods that a tune would be best.

Thanks dudes. I did call a local tuner with the same question, they told me to get a tune or I'd get in trouble. But I dk, they also tried to charge 250$ to install the RJM pedal, which seemed steep to me.

EDIT: Can someone educate me a little bit? Those handheld tuning solutions, will I be able to tune my car with them kind of like someone would on a dyno? Like, will I be able to tell it what mods I have and it'll tune accordingly? Or are they limited in the things they can adjust? What are the advantage of a dyno tune, more power?

As far as handheld options for our cars *Cobb only for 09s and Hypertech* they give you canned tunes. With hypertech as far as I know they offer either a tune for completely stock or for CAIs, you cant make custom maps yourself with it. The general reviews aren't so great..very minimal gains and one forum member posted he actually LOST power so...

Go Uprev, or Ecutek if it turns out it kicks as much *** as they say it will.

Sorry, old post is old, but wanted to get opinions on whether a warrenty would be voided with a tune. I only have a CBE, and I'm considering either cai or k&n drop ins. With 2 breather I probably wouldn't need a tune, but just in case I did get a tune, does that make dealers much less likely to honor a warrenty with any engine related issues on a car with a tune?

No, and if you're worried about it just make sure you purchase Osiris standard so you have the cable and are able to reflash back to stock before you go in for any warranty related issues (PM me) :hello:

Just installed Berk CBE and Motordyne ART pipes. No CEL,s. Hoping to Supercharge over the winter. Tune now or wait??? Million dollar question hmmmm.

Buy the tuner version, tune it now, and learn how to mess with it while you're waiting to supercharge it. Save yourself a lot of hassle & $$ in the long run

I just purchased z1 headers and HFC's. And I'm currently running G3's and MXP True Dual exhaust. I plan on getting the car tuned, no doubt. My question is...would it be ok to drive the car after the installation. Or should I get it installed at the tuner shop?

You'll be fine

cat back, test pipes and cai
 

I installed an invidia cat back, berk test pipes and a stillen gen 2 cai.

Max:
Stock: 269 rwhp, 205 ftlb@5100 rpm
Pre uprev: 304 rwhp, 230 ftlb @ 5000rpm
Post Uprev tune: 337 rwhp, 254 ftlb @ 5000rpm

More important than the max numbers is area under the curve which increased substantially.

4000 rpm:
Stock: 150rwhp, 200 ftlb
Pre uprev: 170rwhp, 220 ftlb
Post uprev tune: 200rwhp, 242ftlb

3000 rpm:
Stock: 110 rwhp, 190 ftlb
Pre uprev: 112 rwhp, 210 ftlb
Post uprev tune: 145 rwhp, 239 ftlb

As most driving in in the lower rpm the tuning made a huge difference in daily driving. During max acceleration the tuning increased total power (area under the curve) dramatically resulting in a substantial increase in acceleration as well as smoothing out all the bumps in the power delivery curve. Huge difference.

Dialed afr to between 12.7 and 13.2, dialed in more advance. In NY we can get 93 octane gas. :icon17:

Uhhhhh.... Yeah, I'm sorry, what kind of dyno? What correction factors? Sheet?

Pre uprev:
http://www.the370z.com/members/dspho...nvidia-cbe.jpg

I will scan the post tune dyno in a few minutes.

post uprev dyno
 

Why are you sorry?

http://www.the370z.com/members/dspho...dyno-uprev.jpg

the numbers speak for themselves. Tuning made a huge difference.

:happydance:

No doubt...

I'm not trying to rain on your parade, but your pre-tune numbers and post tune don't add up at all. Something weird is going on with that "after" dyno, as I've never seen a mustang dyno report read that high on torque for any N/A 370Z.

Also, your mod list doesn't jive with the power you're seeing, if that dyno is correct. Would have been nice to see a before and after on the same dyno, as your pre-tune dynos seem to have torque numbers in the correct range, depending on the correction factor and all. You have to understand that so many factors can effect what the chart shows, particularly the dyno's weather station readouts and what CF settings are used at that particular shop. That's why dyno testing on the same dyno in the same weather conditions is so important.

Anyway, glad you are enjoying the car! :tup:

I have Gen 3 CAI, FI Exhaust and LTH and have never had a tune done. I never realized I could be harming the car?

It is more likely that you are running really rich (and down on power) but it's tough to say without data.

I always realized I could get more out of my mods with a tune, just never thought I could be doing long term damage to the car?

Without some datalogging or dyno pulls to check the Air/Fuel ratio its impossible to say.. but whether you're running rich or lean neither is good for the engine

Are there any symptoms to running too lean? Car seems to drive fine...

Hey can anyone explain to me why cant I get over 300 whp with an uprev tune on my 2013 370z and the set up I have - want to stay N/A

Stillen G3 CAI, Berk test pipes, Stillen CBE

Am I missing something ??