any AT7 tuned??
 

just got tune today .. really fcuked up

What went wrong?

Where did you get it tuned at?

Yes more info please ...

dyno tune or canned tune?

Here's another vote for more information. Send me a PM if you feel the need. I talked with a fairly "good" tune shop in Kent a couple weeks ago and am pretty sure I'll use them in time. If they are the ones who messed up your tune I'll need to go a different direction.

yeah, whats up dude?

I'm going to Vivid Racing to get all of my Dyno runs, then once I get everything you can do Bolt on done, I will be going to them to get a tune.

They are working with a company to make software for the 370. I've been told they made very successful software for the 350. I can't remember the name off the top of my head, but I will ask about it when I go back Monday. It's not Cobb or UpRev I know that much.

yes i was tuned in kent somewhere , dont wanna tell the name .

i have Stillen G3 F.I test pipes Gthaus exhaust ...

and just tune out nothing increase...

the guy said before my car is run too lean ( test pipes problem ) after tuned the mid range is better... and better air fuel.. thats all..

and it is a dyno tune...

maybe the problem is automatic.... anyone tuned a AT??

That's got nothing to do with it -- can you post the dyno graph?

It may just be there wasn't a whole lot more to get out of it. Check out the Import Tuner thread -- in that dyno they clearly barely touched the AFR's after intake and exhaust, and my guess is just added a little timing to pick up some more (not much more, mind you) torque.

Also, when you say "the midrange is better," keep in mind you can't just go by peak numbers -- you have to consider the whole powerband. If peak values were minimally improved, but you gained some torque in the midrange, that's good!

Finally, you could also try another tuner...

I know your pissed because you wanted to see results like other people of 10+ hp and a great increase in torque but those numbers are not the norm.

It may feel like you just threw 600 dollars down the drain but if they corrected one thing I would think its worth it

what are you guys paying for a dyno tune? With just the A/F ratio and octane ratings and altitudes being the only thing they can really change, why not just get a canned tune for less?

Haha, how'd you go from the engine dyno to blamming the transmission? Personally, I think the suspension is to blame :p

I have the 7AT with a AAM tune off the Cobb AP and it was basically just a new file that got the A/F right and accounted for the 91 oct and altitude. My car runs good with no probs.

Kidding aside, Dyno's have shown in the past that 7AT's would produce a lower Power reading than a same equipped MT, this has to do with the drivetrain loss is higher in the 7AT, but it's no slouch either.

I have tuned a few AT 370's....and can tell you that they will put down very similar numbers to a MT car....and as for the power/tune?...I see you have the Stillen G3's....that intake will have a VERY close to optimal calibration for peak HP....the fact that you achieved gains in the midrange and corrected your AFR, is reason enough for the tune....the car will be faster and safer now....That is why you paid for a tune.....Peak hp wont make your car faster....area under the curve is where the gains are most beneficial.

-Jack

Well, Put! :tiphat:

The tuner who I am going to to tune my car is talking about 40-80 HP increase.

I wouldn't be suprised judging by the cars he has done before.

He did say that he would change some things with the engine too. Last time he was talking about a custom intake manifold(he has a flow bench).

I wonder wtf he is gonna do XD

40 to 80 with tune alone? Have to see it to beleive it.

40-80 with some other mod on the engine which I am guessing would be the intake manifold since I don't see what else can be changed.

He is trying to convince me to go TT though lol

I have a similar set up as you. G3, F.I. h.f.c's, Stillen cat back, and with the UpRev tune on a Mustang dyno showed a gain of 11 whp, which came to 286 whp.

Will an intake manny give us that much? I thought it wouldnt help a NA very much.

My guess is it's more likely to just shift peak torque up or down. Runner length has a big effect on that.

If it's really well polished and port matched, it might pick up 3-5% more power overall, but that's about it.

:iagree: With the mods listed there is no way to get anywhere near 80hp over stock..

I tuned my AT a few weeks ago and netted an avg of +10HP and +9tq(peak gains were higher across the powerband). The throttle is more responsive and my power delivery is very even, and I'm no longer fuel starved at low RPM. I even notice an increase in gas mileage, like I used to get around 410-420 with some spirited driving I now notice about 450.

There are a lot of deciding factors on how a tune will affect your car, type of mods being one of them.

Your car was dyno tuned, right? What were the before and after numbers?

If you find some bolt ons that'll give you 80 hp, let's incorporate, and we'll both retire within the year!!

yes it was dyno tuned , before tuning was 297.1 HP and 241.7 TQ
after tuned was 301 HP and 244 TQ but i know the gain is come from the test pipes...

I don't know how or what he is going to do.

All I remember is the intake manifold and him dumping nissan's ECU and completely reprogram the thing. would be amazing if he figured out VVEL:ugh2:

After i put a new tune in my 7 AT with the cobb, the tranney and engine have to learn again. It takes about an hour of driving till it shifts and runs good. When you flash the ecu you loose all the stored driving habits. Just use the MM mode for shifting and it learns quick.

wow....im pretty bummed...soo i can expect a tune is pointless... ? i kno mid range is better...but still.....damn those turbo cars!!

VVEL is a bitch aint it

I am going to be shocked when someone actually cracks VVEL. I think VVEL is a way to save Nissan money with warranty issues. My friend that works at a popular Chevy dealer in San Diego told me that a lot of Corvettes come in with engine problems and most of it is due to tuning however the LS platform is so easy to tune, it is also easy to convert back to the factory tune. He said for the most part, the ECU still shows that it was once tuned with very very minor percentages which give clues but more than enough get by with a brand new engine or a ton of money for labor to fix it. Hell, if I was running a business, I wouldn't want to be paying out my *** for people intentionally changing my product then claiming I need to fix it because they broke it. Don't get me wrong I would like to be able to get a decent tune out of the Z, but I don't see it happening anytime soon.

The sad part of that is a stock ls1 camaro dynos in that same range on a mustang dyno.

Hmmm... I pulled 294whp with my G37xS sedan 7AT on a Mustang dyno... Stillen Gen 3s, ERZ HFCs, and Fast Intentions CBE... no tune.

Always have to :rolleyes: at posts like these. Do you realize how different every Dyno is? Not only the location, temperature, humidity, but the dyno themselves give different results. Not to mention things like the correction factor when reporting the data could cause numbers to be drastically different.

Guys, guys... I got 400whp on the dyno!!!!!! :shakes head:

Yes I'm aware of that. No two machines/circumstances are the same. Relax. I was just throwing out my numbers for a point of reference.

tune
 

does any one no where theres a shop close to scranton pa that would tune my z ????

People live in Scranton?

:eekdance:

Just kidding