Contour Enthusiasts Group Archives Forums Modifications Duratec Performance Torque?

RedSVT & Demon SVT, I think we are all on the same page here..

And what a teaser about the "other" full length headers! Spill your guts man!

I tend to agree with most of your observations. I feel the 50ft.lb. loss due to .125" over optimum primary tube size is a
rare exception. Though certainly not impossible. You didn't however say it was common, so fair enough.

As for "equal length long tube" primaries. Are they ideal? Sure. Are they realistic in much else
other than purpose built vehicles? Almost
never. They're easy on a rail, or a jet boat
with headers rising above the engine etc.
The problem is to package them in "tight"
engine bays of todays cars and not do major
reconstruction to everything around the
"long tubes".

Now lets look at the equal part again. Does it "automatically" ensure equal FLOW? No.
The reason? The NUMBER of, and DEGREES of the BENDS placed in EACH tube for it to arrive at the collector with the others in it's respective cylinder bank. Once they are
"fitted" into a street car they are rarely if ever the same shapes, and that WILL effect flow rates. Sometimes slightly,
sometimes substantially. It all depends on the amount of compromise to make them "fit".

I don't dispute their worth when properly made. My only thought is that I don't agree
that they MUST be equal length to work properly. You must strive to get them to FLOW equally in an AS FITS configuration.

Maybe they wouldn't be as tough to do in a tour due to transverse layout with respect
to collector location. I don't know. Any thoughts on my ramblings?

That 50 ft. lbs. loss of torque compaired to the optimum size is NO EXCEPTION! I tell you what I'll do because I dont believe in keeping info. out of the hands of the people I'll tell you where you can get it. This man is a good freind of mine I met him 23 years ago and he DOES KNOW HEADERS! He owns a buisness named Headers by Ed. He has been building headers nearly forever, in fact MOST of the so called big header co.'s buy there parts[tubing,manderal bends,etc.]from Ed. He has taught me so much about headers I cannot begin to put it into words there is not enough room on this board! You guy's need to calm down take a breath and visit www.headersbyed.com there is a wealth of info. there. I will tell you right now you WILL NOT find headers listed for the Contour, but what you will find is all the info. to build your own headers and exhaust systems and to have a better understanding of how and why it all works. Since I have learned all of this I have not and will not buy any of the ****ty headers that are being produced today by the big header co.'s Some fella named Lee emailed wanting to know about the headers I eluded to earlier. Well I did start it so I'll finish it. The headers are on MY SVT! I built them myself as I have built the headers that are on every single car I own.[the count is 5 right now]and I have built them for family members as well. In fact my uncle builds high dollar custom street rods for select clients, and several of those are running around with my headers on them. All of my headers are equel lenght and long tubed. Any body that believes that that does'nt make a difference or cannot be done is a fool! Go to the site and learn for yourself! Ya'll have a good night.

Have you dyno'ed yet? How much are we talking for a set of custom headers?

I'm going to check out what that site says....thanks for all the info!

Amen!! Like I was saying when I b*t**ed out the MSDS add for claiming its torque increase without mentioning the other mods.

warmonger

Okay RedSVT.

First, thanks for the link. Very informative, lots of content. I'm still going through it all.

I don't know if I came off the wrong way or not, but I wasn't trying to suggest you were full of crap in your thinking. In fact I believe I stated I agreed with almost all of it.

In reference to 50+ ft.lbs. of torque
loss being "rare". I meant that it depends on the engine in question to some degree as
to the level of "loss". Rather than a number
of specific output lost in this case.[ a small block chevy]. It might be easier to relate it in percentage of loss, to equate it to other engines. In other words, if this
increase was on an engine with a baseline torque peak of 200ft.lbs. thats +25%. If it began the test with 450ft.lbs. it's +11%.
This may help people relate the "typical" gains to a contour engine more easily.

Again, I'm not trying to discredit you or Ed's. They obviously know what they are talking about. In fact, the source of my info about length, bends, packaging and flow was referenced on the site. The only one I saw with a positive mention so far. [I've not finished the entire site yet.]
Smokey Yunick. I'm sure you're familiar with the name, and reputation. The book I owned was titled
"power secrets". I picked it up in the mid 80s, and haven't read anything more current
from him since, so it's possible he had changed his views since that time.

Guess I better check.


Btw. If you have time, I'd be interested in seeing a pic of the ones you assembled on your tour. And if you wouldn't mind sharing...the diameters, lengths etc. you ended up using. If not, a pic or two would be cool. Thanks.

You from Minnesota???

Ed is a header Guru!!!

man, you guys are all f*cking retards, this board is a joke... no wonder everyone laughs behind your backs... i am not "trying" to sell the headers, i have people OFFERING me more and more money for them... also, demon if you think it costs a $1000 to get a custom burn you are as dumb as you sound. i can get a dyno tune for $50. and my f*cking tuner is the best in metro detroit, and i haven't made any house payments for him, i have spent no more then $120 on about 15 pulls... thats a hell of a price. you guys are losers and can talk you s*hit for as long as you want, it doesn't bother me, i just laugh and watch as you come up with more and more excuses to do your cheap asss no proof no power gaining mods. once again, i repeat, GET A LIFE you are all talking out of your asssses!

go f*ck yourself i don't have to guarentee a damn thing... get a life.

a money back guarentee!??! do i look like an infomercial!?!? no, i am not trying to sell the headers, just give people some advice as too what to do to get some torque, 3.0L, long tube headers, postive displacement blower, twin turbo... just cause you losers can't afford them doesn't mean you should sit there and say they won't work. $1000 for a custom burn... have you ever even BEEN to a dyno tuner befoer!??!?! if someone qutoed you a $1000 for a custom burn they must have saw your dumb asss from a mile away... $1000... tell me another one...