Just curious, the TPR Magazine has extensive and usefull comparison tests with majoy header manufacturers all shown with dyno graphs. The amazing thing, and the reason why I'm posting this is that Spoon made a HUGE spike in the lover RPM (3000 - 4000 range) with gains up to 25whp and 20-25 torque. Does anyone have a dyno with a spoon header on? Just curious, this is kinda extreeme for a header. Not to mention a peak gain of 35.4whp

 

Just realized they HyTech Exhaust manifold is actually much efficient thru the whole RMP Range. It's amazing to look at it. 41whp increase over stock B16. and craploads of Torque. Here's the graph so that you can all see....

 

maybe they meant 2.5 whp

 

Here's the rest of the graphs to make it more belivable. All the heders were tested 2 times with simillar results.

5Zigen


DC Sports


DC Sports 4-1


Greddy


Spoon


Weapon R

 

GOOGLE.com "HyTech Exhaust manifold" CLick and order.

 

I know TPR is a legit magazine and I actually seen that header test in their publications, but I still have a very hard time believeing those numbers. I think someone is getting paid to post ridicilous numbers........
Wasn't this on a basically stock b16 also, which is why its even harder to believe.

 

Well, Hytech claims that they make up to 40hp more then their competitions, so it might make sense... They're basically racing headers designed for street use. But it's its true, then it's worth their $800 that they ask for it.....

 

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by goforbroke &raquo;</TD></TR><TR><TD CLASS="quote">I know TPR is a legit magazine and I actually seen that header test in their publications, but I still have a very hard time believeing those numbers. I think someone is getting paid to post ridicilous numbers........
Wasn't this on a basically stock b16 also, which is why its even harder to believe. </TD></TR></TABLE>

I feel you on that one, I have that issue and just find that hard to beleive. Stock B16, making 30-40+ whp by swapping the header. Dyno or no dyno, I just can't see that as beig possible. Maybe 3-5hp, but not 30-40

 

i gotta raise the BS flag

 

after swapping my b16a2 into my del sol
i dynoed the car:

atlanta 6:30 pm mid june = 152 whp with lots of bolt ons but stock header "it was what we had to do to finish the project that day"

2 days later same time of day dc sports 4-1 = 158 whp.

it did make a better mid to top end graph but only a peak of around 11 hp around vtec.

just my experence
maybe i did something wrong???

 

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by KFBhonda &raquo;</TD></TR><TR><TD CLASS="quote">i gotta raise the BS flag</TD></TR></TABLE>

 

is anyone using a hytech header that can verify.
(i'll believe it when i see it)

 

With as many people out there running B16's, and so many trying out different brands of headers, this would have been discovered long ago.
I bring in lots of JDM engines, some of which have real Mugen and Spoon headers on them. After install and dyno of these engine typical gains are still only 4-5 hp, not 40.

 

TPR needs to calibrate their dyno because its reading 10x what it should be.

 

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by goforbroke &raquo;</TD></TR><TR><TD CLASS="quote">TPR needs to calibrate their dyno because its reading 10x what it should be.</TD></TR></TABLE>

You mean Pann Auto TPR is just the magazine doing the article...

They did another test @ AEBS, see here: http://www.tprmag.com/issue/10...shtml

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by TPR Magazine Article &raquo;</TD></TR><TR><TD CLASS="quote">"When checking out the graphs on the following pages, realize that there are two sets of dyno numbers. The first set is from our tests on a Dyno Dynamics eddy current dynamometer. The second set is from a Dynojet fixed roller dynamometer. We'll explain why both tests were used as we walk you through our interpretation of the graphs. You'll see there are some anomalies, and that by the end of the first test, we knew that we were going to have to re-test the headers. You'll also see that re-testing may have posed more questions than it answered."</TD></TR></TABLE>


Modified by DELSOLEMITE at 9:49 AM 7/7/2005

 

I seen that amazing new header design that adds 40hp. They put a turbine in the exhaust stream that pumps air into the intake. Why hasn't anyone thought of this before it's so simple! It's almost like it charges the incoming air!

 

I've got a reply from TRP, I hope they don't mind if I quote them:

"Danny,



Once again dyno numbers only tell us that something is clearly wrong with the first results. Which as you know from reading the whole story was clarified on the AEBS dyno jet. When the dust settled the HT unit was still the leader, but even they acknowledge that a peak gain of 40 hp is impossible, barring some sort of resonation effect.



At some point we need to realize that peak HP gains are great for bench racing but may have very little correlation to who the checkered flag goes to.



Thanks for your question,



Greg"

 

is it possible the hp reading was taken at the flywheel and not the wheels? i mean, 30 or whatever hp from a header is pretty crazy at the wheels, but i *might* believe it if it was measured from the flywheel.

 

Hah hah, they're backing off! They got paid to print those results without doing some real fact checking, and I'm sure they've recieved an overwhelming response calling them on it.

 

spoon = jasma and JASMA is &gt; all
BTW Hytech headers are the ****... 192whp on my friend's R with a AEM CAI and a Mugen catback another one of our friend's Rs put down 182whp on the same dyno one the same day with a J's intake and Spoon header

 

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by jurenic &raquo;</TD></TR><TR><TD CLASS="quote">Well, Hytech claims that they make up to 40hp more then their competitions, so it might make sense... </TD></TR></TABLE>no they dont, thay claim up to 19whp over stock (i think)