well, everything nexus said and all of the worries of the members of the boards can be simply resolved by a simple dyno from an independant source.

whos that G and that Z who are supposed to dyno? are they just yanking our chains and selling us a crock of bull?

i already bought my alphawerks header and am just waiting for that dyno to install. argh. the waiting game is so damn annoying.

 

I don't have any info to provide aside from the original dyno I remember them running, but then again I don't have to. I'm not the one calling one side out on their products performance by "looking" at it. I've been waiting quietly and patiently to see the real world performance of the Alphawerks headers for awhile now because it seems like everyone is full of opinions before the product is even fully released. Considering they said these headers can be installed w/o removing the engine, which I believe is not the case with most other headers, there must be some design differences, however subtle they may be.

If the results are similar or the same, great. You were right and I was wrong.
If not, then you were wrong and I called your bluff. Its that simple. I base my decisions and opinions on facts and data, not theories and beliefs.

 

No headers require the engine to be removed for install. That said, I installed my topspeed headers and the only thing that had to be done was unhook some electrial lines and unbolt the steering shaft.

What the point of every thing I posted was that the alphawerks headers look too close the DC and topspeeds to be significantly superior. There will be obviously slight differences, but looking at the pictures it's apparent that they are going to flow relatively the same. In the dyno runs on the topspeeds, people are seeing 10hp (at peak) give or take. Now the alphawerks reportedly make what? 21hp! how does alphawerks pull out an extra 11 HP? not by a mm or 2 here and there.

The dyno runs from the nexus industries as sketchy IMO for the following reasons:

1.) the headers run to show gains was run #22 vs run #16 for the baseline. This tells me they ran and ran and ran untill they got the lowest baseline they could and then compared this to the largest gain they could, nothing wrong with this, but somewhat misleading IMO

2.) The baseline dyno seems pretty low at 222 hp- but hey, this could be still correct

3.) the fact that it's from a manufacturer themselves always makes me cautous of what they are advertising.


I think all my points I have made are valid and should be addressed by the manufacturer. If I were considering headers, obviously I already made my desicion, I would want the answer to why these headers are superior to the others that look so similar. Or at least what makes them different enough to pay the premium in price. And I wouldn't want answers like:

- We did lots of R&D - what does this tell me? Nothing, you could have done lots of R&D copying another companies headers for all I know.

- We made mm changes here and there to our JDM hedaers - Well that's good, but again, what does that tell us? Nothing, except you knew that the steering shaft is on the oposite side on the US version of the car and you needed to allow for clearance.

I've already made my decisions on which headers to get, but I think the customers that are considering the alphawerks deserve to know what makes the alphawerks headers superior and give them reason to pay the premium for them.

 

I agree with this.

 

a guy willing to dyno his car after he had it serviced for a clicking noise in the back. That was about two weeks ago and just before this forum went down for upgrades.

I guess that hasn't happened yet.

 

Uhh..Crawfords you do...

1.) Speculating...

2.) Depends on how the car was broken in and if it's an auto or manual...

3.) It isn't...COJ_General has nothing to do with them...

The dyno sheet is one reason...

 

You don't have to remove the engine to install crawfords -

And the dyno charts I am refering to are on the nexus/alphawerks website.

 

I'll find out...

Which are of COJ_General's Z...

 

Ok, I looked it up, you don't have to, but it makes the install easier. Crawford are supposedly one of the toughest headers to install on the Z...

 

Well I guess I was wrong on the headers. I thought in my readings on this forum I head read that many of the headers required the removal of the engine. I'll take the fall on that one.

And I do agree; an independent dyno-test of the headers will prove/disprove their actual capability. But even then, there will be people complaining about once variance in the test or another.

I personally could care less about headers because I'm probably going TT in a couple of years.

 

just look at the way the tubing is bent and you can tell the difference

 

Hello to all...

What happened to the forum? Anyways...to respond to some posts here...

1. Why so many dyno runs? Because we dyno'd the car in Florida and you see the temperatures the car was run at, the kept overheating when we tried to get the dyno pulls because we did not force feed the car with air. The reason why we ran the car so hot and that we did not force feed the car with air was to assure the numbers were real and not artificially made by a nice cool temperature and cool engine, nor artificially made by a huge industrial fan.

2. The dyno was not done by Nexus Industry the dyno was done by COJ_General. That is his car in the pictures of the dyno that he took and that is his dyno. We posted it. Our company 350Z is track model and blue. Anyone want some pics?

3. The baseline hp was not great but within the tolerances for the car this has been verified on numerous posts...COJ_General's car was an automatic.

4. Future dyno runs...metalz a member of this forum said he would dyno and he had some issue with his car and said he was taking it to the dealer and I have not heard back from him again. Thats ok because we got a member of g35driver.com to do the dyno, his sig is coupeondubs. He has a g35 with 20" maya wheels which worries me because of the additional weight of the wheels will take from the dyno.

5. Different versions of the headers...I will give you the plain truth on this...you cannot tell the difference between headers by just looking at them. If anyone here has done R+D on manifolds or headers before please help me out here because you would know that the changes you make in the headers once they are polished to stainless steel are very hard to decipher because at the end of the day they have to fit in the same tight compartment of the Z's engine bay and it also has to install as easy as possible. Like I have said before even the original JDM Alphawerks version and the final USDM version are hard to differentiate, but the engine bay (it wont fit the USDM at all) does not lie and neither does the dyno. COJ_General proved this and metalz was going to do another dyno (where have you been for the last 2 weeks?), and now we have scheduled coupeondubs for a dyno on saturday (if he doesnt show then I will need another car, PM me if you want to do the dyno in Florida to be my back up) I am definitely not shy about dynoing the product, I just wish I could do more but I can't without volunteers here.

Best to all and hope the snow thaw's soon up north to enjoy your rides...

Victor D.

 

hey Victor, great to hear from you on this thread again and glad to see that the guy is finally coming through. I'm sure there are plenty of people on here that would be glad to offer up dynos just to see this through, me being one of them.

I for one cant wait for saturday to come around and for these arguments to finally be settled!

 

are you saying you'll be dynoing this header this saturday?

 

i offered to dyno before, but victor told me he already had a G in florida doing it(the guy doing it on saturday). hopefully he pulls through with this.=)

 

The DC header looks more like a single piece construction, cuz there are alot less welding lines than the ALphawork.

 

In comparing my Topspeed headers with the pics of the Alphawerks, I can say that the welds are in nearly the identical places.

 

I'm in Pembroke Pines, FL and would gladly be your guinea pig for your headers. Spring Break is comin up so now is the best time to clear up speculation... I'll be free all week. If you could throw in a sponsorship I'd be extremely grateful! I plan on attending a few shows this spring break.

 

i just ordered mine today, whenever i get R done, i will show the dynos

 

whats R?