No. I'm saying I want proof. You can't just ignore half the problem and say they are better because they have more area where the gases are hot. What about turbulence? If twinturbo.net were actually up I'd be able to post the proof that other companies like to give to show their product actually works as described.
totally agree ,,, and the pipes you got there are from , coz ,, there the ones I'm getting , just about to order.....
i subscribe to the above theory more than the sudden increase that uas are sprouting... and i need to see back to back dyno's comparing the two before i believe that the big bellmouth is king
They may make more power overall but what about spool etc. What I always read about split dumps was they improved spool and more power overall compared to stock. Sure the bell mouth might give a bit more overall power but what about the down low for nice streetability. But dyno's comparing would be good.
better than fancy splits? performance fabricator, he must be fast! proven with other cars but proof not in existence? proved by the same workshop that is trying to sell them? i have this black box over here.. you just needa sit it on the passengers seat and you will make 50 thats right 50!~ extra horsepower.. i have dynos to prove it.. way better than any of that fancy techno wozzas out there:bash: :bash: :bash:
Excellent stuff Rob, they look robust, tidy and simplistic. They should up your HP a little, as if your going to need any extra when the hardtop is finished!!
Pe 1420's come with bell mouth dumps, why would pe bother to make there own B/m dumps to suite the 1420, when there is any amount of a/m dumps on the market to suite there turbo? The answer according to pe is better flow at high boost-rpm on big hp cars. The only problem with the uas dumps is the asking price, I'd have em in a flash but can't afford them atm. Did anyone notice the length off the pipes, they don't just finish-end under the turbs, they continue right back to the cats, and uas will taper the pipes back to 2.5 at the cats.
Jees people, get off Robs back a bit. These have only just been developed and I'm sure proof will arrive soon enough. Robs claims are not outlandish or in any way deceitful. The only claim he's made is that they make more power. Not that you'll spool better, or you'll get 3 seconds shaved from your ET, or even that you'll pull more birds with these fitted. With all of the money and time he's spent on developments to the 300zx that most or us have benefited from in the past, I'm sure we could all allow him a bit of leeway here and give him reasonable time to show proof for those that don't seem to understand his good name, and that of his business rely on him not making false claims on new products.
That still doesn't say what they are like down low. Supplying their own dumps with the turbo's is all well and good and probably does work well, even more so when they can say that their turbo's are good for xxx amount of hp. My point was that the divorced style are meant to give a better spool and better performance. I'm not saying better than the bell mouth but that they are meant to give somewhat of a best of both worlds. That said the SZ 3" Expansion ones look bigger than most of the tiny tuneagent style ones. In the end it all depends on your application. But that still doesn't change the fact that we'd like to see the comparasin.
I never said they wouldn't produce more power, they probably do. But most people would like to see dyno's so that they can make an informed decision before buying. This way they can pick the parts which best suit the application.
Im with ZDUCTIVE on this one, although i am not suggesting that these bell mouth dumps ar enot worth the money. I would expect that they are a great improvementt over stock but from the information that i have accumulated over a few years of research and som experience in the area tells me that a well designed split system is better for these internal gate turbo's as the gas speeds vary greatly between the main flow and turbine flow. Some well designed Single pipe systems i have seen even have a built in tongue or even a pipe in pipe system to deal with the turbulance and gas speed variation. Having said that i would like ot make it clear that i am not against this product . I just think that claims should be backed up and tested properly against a proper system like chads
Is this the thread you are talking about? http://twinturbo.net/net/viewmsg.aspx?forum=general&msg_id=2033426
