And the plot thickens ......

Ignore the fact i didn't put a question mark at the end of the sentence, it was phrased as a question ;)

And no, until someone comes back with the files as proof one way or another, or someone who knows the uprev tuning can say that the spark advance/any other tune contents can be missing, i still think my suggestion/question is what may have happened.

Read the Osirus tuning guide/instructions as to how it works, IIRC, it does suggest that what i asked is possible.

There is only one plot going on here.

Haters hating.

Tony ,,,,, How much longer for the G37 exhaust ??? Thanx !

No doubt about this!:shakes head:

The OP and the lynch mob here aren't looking at the quality of the exhaust or potential of the exhaust, only a relative figure on a dyno. One exhaust to the next isn't going to produce extreme hp changes with minor modifications. No one made claims of tons more horsepower from your exhaust anyway.:rolleyes:

If the OP is so interested in building NA hp and seeing the actual potential of the exhaust, then he needs to be more concerned about engine internals and fuel system.

Those who are trying to compare an exhaust like the Gemini to the Motodyne, are attempting to do the impossible on the cheap and aren't interested about the exhaust's actual potential. They've already reached the maximum you're going to spend on engine modifications and time spent. Most of them are just looking for, a posers excuse.

I said it before and I'll say it again; "hp cost money," there are no short cuts and if you're not willing to part with it in the endeavor of finding hp, then you're just like the next, all mouth and no action.

There's no comparison in flow characteristics or quality between the two. Attempting to discredit a manufacture, which the OP and company are attempting to do purely on a dyno results, is about as lame as it comes. Spend the money, add high compression pistons, cams, oversized valves, port and polished heads, upgraded intake manifold, upgraded fueling system and intake and you'll begin to see what the exhaust is truly capable of. Something the GT Haus, Akrapovic, and Gemini aren't designed for and can't accomplish based on their design limitations.

As I suggested before to the OP; "sell the exhaust and find something cheaper that you can afford and will be happy with." You got way more than what you paid for. You're just ungrateful, GET A LIFE! :rolleyes:

Tony and Motodyne have gone way out of the way to accommodate you and everyone else here, from photos, videos, technical information, free dyno's and more. If that doesn't show their sincerity to produce an affordable top quality exhaust, then you're far more stupid then I originally suspected.

I've not yet purchased the exhaust but I can assure you based upon Motodyne's willingness to go the extra mile and the exhausts hp potential I will be purchasing the exhaust. The quality, rivals the GT Haus and Akrapovic, the price is far more palatable in comparison and far out classes any of the others available at a similar price.

Tony, best advice; no matter what you do for some people, they will never be satisfied. They're always expecting more than they paid for. Their expectations are far to high and unrealistic. In this case the OP got far more and is expecting something he's not entitled to. It's akin to being a heroin addict and they're always expecting other's to provide them with their fix.

You've proven your sincerity time and time again. You've got nothing more to prove and everything to gain. Anything else, will be simply wasted on this individual or anyone else in agreement with him. Don't expect any kudos from this lot. There's one actual buyer here and a lynch mob who have absolutely no clue!

Like you said, Haters are going to hate, no matter what you do or provide.:shakes head: Just, "Keep on truckin!":tup:

DILLIGAF what you think? Especially when you're driving a what a 3 year old G37.:ohsnap1: Typically, you don't have tee tee, for engine building knowledge. You've never built a VQ37VHR high performance NA motor.:shakes head: You bolt on a few external mod's and you're not happy. So to get that quick fix you install an FI system and tune, not knowing the first thing that's required to build a motor let alone, a strong NA performance motor. FI is nothing more than an excuse for a lack of motor building skill, knowledge and the patience to accomplish it.:rolleyes: Anyone including a monkey can bolt on TT or Supercharger.

The only thing I see here is, your just one of the self-conflicted mob. Go back and read the full thread. He spent nothing compared to what's really required on tuning or real upgrades for a horsepower making NA motor.

There's allot more required then a couple of dyno's to measure those characteristics and tune a NA motor. It takes considerably more work and tuning. The tunes used are moderate at best. UPRev and SZ are for the masses, and don't provide the parameters needed to dial in extensive modifications. There's only one tune available that will and it's not cheap.

The rest of the lynch mob, is self explanatory.:shakes head:

Anyone going to be going from a stock exhaust to the E370? Wouldn't mind seeing a dyno of that.

Have the manifold and couldn't be happier with it. All I want is the right catback and my setup is exactly what I want. Reliable and a better drive than the stock car.

I have the s tune nismo CB exhaust ($1499) that i got 14 wrhp from, now im gonna get the Meisterschaft Exhaust systems thats 1000 more then the nismo CB. im pretty sure im not gonna gain power from the Meisterschaft Exhaust systems just because it cost more. im pretty sure i might even see a drop off in power. or did tony say "hey your gonna see more power from the e70 system"?

Am I understanding all this correctly? People on here are expecting gains going from one catback to another? If so, then yea you're gonna be disappointed.

okay...

ya'all bickering is just ruining this thread.

Everyone knows that N/A the more mods you add, the less gains you see per mod. so swapping exhausts, when you already have the TP, intakes / tune etc isnt gonna see alot of variance.

When the rest of the car is 100% stock except for a catback, then swapping to the Motordyne would be more interesting and give a better view of how the exhaust compares to the others.

Either way, in the end, 1-2hp SHOULDNT matter to anyone really... how often do you go full throttle with something on the line (99% of drivers here)

If your thinking about getting this exhaust, you should be basing your decision on Sound, looks, fitment and then the fact that you won't lose HP. Cus trust me, you will not notice 1-2hp as you drive. but you will notice the sound and the look and the added rattles if its a crappy fitment.

Now, can the other people stop bickering and let this get back on topic.. (slightly)

I think most questions have already been addressed, what everyone should be looking at now, is this;

1) The re-tune gained HP and torque with the E370.

2) The same tune on the previous tuners dyno, showed the same (new) power both with the new tune and the old tune.


I still argue (until someone proves otherwise) that the old tune doesn't contain the spark advance data change (because it wasn't part of the tune) and therefore, when adding the old tune back on, it wouldn't "remove" or set the spark advance back to the previous value, when applied.

If not that, or another reason, what's being said, is that one of the tuners is fixing numbers, which is ludicrous in my opinion.

yeah, it definitely seems like that's what he was suggesting. i'm personally going to quit following OP's progress, as he clearly wants this exhaust to fail.

the exhaust is amazing in quality, sound and performance. Tony provides arguably the best service in the industry. what more can you ask for?

/thread

Allow me to show you how Uprev's Osiris works. When you flash the ECU using Uprev, you use a ROM file. Here is a picture of what each ROM file consists of:
http://2.bp.blogspot.com/-od-7ntTLUG...09-01_0010.jpg

As you can see, each ROM file contains Fuel Tables, Ignition Timing, Cam Phasing, etc etc. It contains every parameter that the ECU needs to run the car. Every time you flash with a ROM file, every parameter is overwritten.

Now, in the OP's situation:
SpecialZ's tune: Will have revised Fuel Tables. But if the Ignition timing was not tuned, then it will contain stock ignition timing. Just because Ignition timing was not tuned, it doesnt mean it's missing from this ROM file. It just means it contains the stock ignition timing. Every ROM file has to have an ignition timing.
Church's tune: Revised fuel tables and revised Ignition timing, since both were tuned.

So the OP ran the dyno with Church's tune. He then reflashed the ECU back to the SpecialZ's tune. During this process, Fuel Table, Ignition Timing, Cam phasing, everything is replaced back with SpecialZ's.

OK, thanks.

I can't find the tuning section i thought i remembered about being able to edit specific functions, ie. only edit the values you specify.

Based on that, the only other conclusion i can come up with, is that someone is calling the tuners liars :(


That or there is some kind of equipment irregularity;

The A/F ratios are almost identical in the SZ tune, in the CAT tune, the SZ A/F was all over.

hey mate

i went from stock to E370

check out my thread here