Thread: Step Headers, what do you think?

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Dave S,
From what I have read, step headers will, in some cases be worth a few Hp - but not necessarily in a street driven car/engine. Stahl is not a big fan of them and this guy, the second listed, not sure of his credits, also does't feel that a step header is a real benefit - see #5. It makes sense to me.

I went to college with Jere Stahl - and he was developing interesting stuff w-a-a-a-y back then and was the class car geek.

http://www.stahlheaders.com/JpgFiles/issue3.pdf

http://www.x-pipe.com/Scavenge.html

Methinks(I know - archaic, but I'm an OF) that step headers need to be developed with a certain airflow - camshaft and head design and an RPM range that the engine will turn most of the time and that just welding up a set of pipes at arbitrary lengths without airflow/dyno tests wont do it and that Hp might suffer

If you do build them, please make sure that you keep the forum updated as I hope you can prove these guys wrong .

Originally Posted by Irelands child

Dave S,
From what I have read, step headers will, in some cases be worth a few Hp - but not necessarily in a street driven car/engine. Stahl is not a big fan of them and this guy, the second listed, not sure of his credits, also does't feel that a step header is a real benefit - see #5. It makes sense to me.

I went to college with Jere Stahl - and he was developing interesting stuff w-a-a-a-y back then and was the class car geek.

You mean they really had colleges way back then Dave????

http://www.stahlheaders.com/JpgFiles/issue3.pdf

http://www.x-pipe.com/Scavenge.html

Methinks(I know - archaic, but I'm an OF) that step headers need to be developed with a certain airflow - camshaft and head design and an RPM range that the engine will turn most of the time and that just welding up a set of pipes at arbitrary lengths without airflow/dyno tests wont do it and that Hp might suffer

If you do build them, please make sure that you keep the forum updated as I hope you can prove these guys wrong .

Some very interesting reading on Stahl's site, seems the other guy was just pedaling some new gimmick... Guess I'll go with Stahl's suggestions, he sure does seem to know his way around an engine, especially the exhaust side of it!!! The items on velocity are certainly true, can't argue with basic science!!!!! Gentle bends (didn't that used to be a TV show) and properly sized tubes and collector's still seem to be the best answer to cleaning out the exhaust. Maybe I was just hoping for a magic bullet!!!!!!!

Originally Posted by Dave Severson

Some very interesting reading on Stahl's site, seems the other guy was just pedaling some new gimmick... Guess I'll go with Stahl's suggestions, he sure does seem to know his way around an engine, especially the exhaust side of it!!! The items on velocity are certainly true, can't argue with basic science!!!!! Gentle bends (didn't that used to be a TV show) and properly sized tubes and collector's still seem to be the best answer to cleaning out the exhaust. Maybe I was just hoping for a magic bullet!!!!!!!

Dave S.
We've (almost) agreed on something - finally !!!!!!!
Probably was a TV show - I just have never been addicted to the 1 eyed monster(except for car races). My wife is regularly saying "Isn't that (a name) from the TV show (a name)". My standard answer is that I was too busy earning a living in some faraway land to have watched that drivel.

Stahl headers have always seemed to be the Cadillac (now Lexus? ) in headers and he has been doing them for a long time for a lot of the 'name' racers, so his credibility, to me, is way up there.

Originally Posted by Irelands child

Dave S.
We've (almost) agreed on something - finally !!!!!!!

Dang, I just realized that!!!! I must be getting soft, heck it was 3 years before Uncle Bob and I ever agreed on anything!!!!!!!!!!!

Gotta go do a little work, then it's off to another Friday afternoon at my favorite junkyard!!!!

Originally Posted by Dave Severson

Dang, I just realized that!!!! I must be getting soft, heck it was 3 years before Uncle Bob and I ever agreed on anything!!!!!!!!!!!

Gotta go do a little work, then it's off to another Friday afternoon at my favorite junkyard!!!!

I do recall a few of the spears that you and Uncle Bob lobbed back and forth - maybe I'm more quietly opinionated

Happy pickin's - my big thing today is the lawn(about finished) and find some good 500 wet & dry to final sand so maybe, just possibly, I can put some color on some of my project parts next week.

Friday early disappearances are called POETS = (P*$$ Off Early Tomorrow's Saturday)

Methinks(I know - archaic, but I'm an OF) that step headers need to be developed with a certain airflow - camshaft and head design and an RPM range that the engine will turn most of the time and that just welding up a set of pipes at arbitrary lengths without airflow/dyno tests wont do it and that Hp might suffer

If you do build them, please make sure that you keep the forum updated as I hope you can prove these guys wrong .[/QUOTE] well air flow and length has alot to do with any set of headders and heat get out of the tubing is power to more heat going out the tube and not threw it and how long has alot alot to do with were the engine is and where the tube needs to exit some times they get abit longer am i jerry stall NO but i build alot of headers and jerry is not me i do ok shame less plug why not. i did build a set of step headders on here and posted all of it well ok i am not jerry S or david V

That was gonna be my suggestion Pat. Just get a compressor & push the air through the engine.

My theory is big exhaust & force the air through.

Originally Posted by pro70z28

That was gonna be my suggestion Pat. Just get a compressor & push the air through the engine.

My theory is big exhaust & force the air through.

you are a very smart man

Thanks Pat. Check is in the mail.

I topped 'em off with 4" collectors

Originally Posted by pro70z28

I topped 'em off with 4" collectors

that looks good i would show you mine but.. some one may be looking there is a city bus missing the EX