Re: Lets talk headers
 

most don't test today, they rely on what their competitors with a similar combo run, what they've read on an internet forum, evident by this thread ;) and/or what companies like Burns tell them they need and even then experts aren't always right.

I remember a lengthly conversation I had one night with Jere Stahl who refused to believe I ran as quick as I did with 1 3/4" primary tubes on my 700HP 468.

The fact remains that most run headers that are not one but two pipe sizes too big.

Re: Lets talk headers
 

Might do some testing and find that in bad air a small two step tube with no merge would be the ticket. Don't fall for the bling of a merge unless you like to pay for bling. Better test & test some more... You could be leaving a lot on the table, esp when you bring preconceived ideas of what is best. Last July I was dyno testing a Drag Pack engine at BES and put my smaller 2 step non merge headers on and with their best merge/big tube tune it had a 25 HP average better between peak Tq and Peak HP and was only down 1 HP at peak. They also had 17 higher Tq. and a longer run at peak Tq number. Point is... Test and let the engine tell you what it wants..

Re: Lets talk headers
 

X2!

Re: Lets talk headers
 

Many SS guys around here do Test. Usually 2 or 3 of us split track rental costs here at Tulsa Raceway Park. Personally, I am not aquanted with anybody fast that does not test a couple times a year.

Re: Lets talk headers
 

I would agree that a lot of guys are probably running headers too big. FWIW I run 1.875 ( no steps ) with the std. 3.5 collectors on mine.......and at 3000lbs I've been a 9.32@ 144 with my 377. That probably puts me around 700ish with a 1.875 pipe. I would start with 1.750 on a low HP combo for sure.


_

Re: Lets talk headers
 

Joe, please check you PM, ref 377

Re: Lets talk headers
 

Joe who?

Re: Lets talk headers
 

joespanova

my bad, I thought your name is Joe. I apologize.

AnyWho, I want to know about your 377 - 700 horse buildup

Re: Lets talk headers
 

LOL .......It is Joe.......I didn't get any PM.
What would you like to know?

Re: Lets talk headers
 

please check again