Originally Posted by BoBoTee (Post 33850)

Obviously you have no clue about the new VQ it's better and takes better to mods then the old one. I'm confident it will make more then just 5-6whp w/o tune. GTM's exhaust shows pretty good gains on their dyno sheet not sure if that was tuned or not.

Originally Posted by MightyBobo (Post 33865)

Blanket statements (IE, "The new VQ is better and takes better to mods" - you think its going to respond well to ALL mods, equally as well?) aren't good. Technologically this motor isnt that different from the previous - just slightly more displacement. You honestly think its going to pull some magic numbers out of nowhere for simple mods?

GTM's exhaust testing had multiple dynos, and you'd only understand it if you've ever read a dyno graph. Their huge like, 21 WHP gain not only factored in the catback + test pipes, but also some timing adjustments (tuning, kinda). Either way, its NOT just the cat back. Im also skeptical about this specific graph, because its the ONLY one not showing AFR's...did this one have some timing adjustments? According to them, no...but I wanna see those AFR's.

Either way, their baseline dyno, and their cat-back only dyno were 10 DAYS apart! What if the weather was considerably cooler on the cat-back dyno day versus the stock one? Or less humid? Until I see a dyno of a stock catback to aftermarket one within a VERY small time period (couple hours at most), I don't buy dyno-proven too much heh. Oh, btw, their stock exhaust vs. cat-back only exhaust dynos showed a 10 WHP increase. But 10 days apart, that doesn't mean much to me at all.

I don't say their exhaust isnt a good one, by the way. And a small disclaimer, my 5-6 HP was a random shot in the dark, I didnt know how much "power" the 350Z's got off a cat-back only. So who knows, maybe its 10 or so. Either way it isn't much, and its just a piece in the puzzle to a full header-back exhaust that will make a fairly big difference.

Originally Posted by BPAuto (Post 23022)

Having been fabricated from Nippon Steel, it is a definite that this exhaust will make significant power. This same exhaust design for the Z33 had a decibel rating of 92; knowing this, I would imagine that this exhaust will be daily drivable as well.

Originally Posted by arcticreaver (Post 42084)

okay... so what's so special about Nippon Steel?

Originally Posted by BPAuto (Post 44371)

I am glad you asked.

Amuse and Nippon Steel offer something called STTi. Basically it is Super Tough Titanium. This material has proven most effective with the new R35 as most people are aware of the immense amounts of heating the R35 produces throughout the exhaust system. Most titanium exhaust systems, as they increase in temperature, they become more brittle, more fragile; Exhausts from Powerhouse Amuse & Nippon Steel are not as prone to cracking or bending. I do not know the full specifics of STTi, I just know that this material has a longer life span than most titanium exhausts, and yet it is among the lightest exhausts at this point in time.

-Hunter

Originally Posted by MightyBobo (Post 44805)

But, that really didn't answer the question he was REALLY wondering heh. You said:

"Having been fabricated from Nippon Steel, it is a definite that this exhaust will make significant power"

What about Nippon Steel will make more power than any other exhaust?

Originally Posted by alan93rsa (Post 45364)

I believe what Nippon has developed is a more sag and creep resistant alloy. If that is the case then the original shape of the components would not change as much at high temperatures. This could aid in maintaining the original power of the package. Whatever that level was.

As to friction in the cystallographic structure at elevated temperatures causing a recordable loss in power I'd have to say that is a pretty week limb to be standing on.

Originally Posted by MightyBobo (Post 45598)

I think, maybe its more appropriate to say that...possibly the developers are (hopefully) going out of their way to ensure their product makes very solid gains for the money, because nobody is going to pay a ridiculous sum of money for a product that makes mediocre power. So,may as well engineer the product to make high gains so that people feel justified in spending their large sum of money on their product in the end, right? :)