Long Tube Header Dyno results & Photo

[gboezio]

Originally Posted by jkuchta

Gboezio and WolfWings....you're both about half right.

Stainless and Mild steel both have high melting points, but Stainless conducts heat far less than mild steel, making it much better for exhaust applications. Also, stainless is much less susptable to scaleing and errosion than mild steel, making it even more superior in this application.
As far as embrittlement...while it will happen, the reduced fatigue strength of 304 will still be higher than that of mild steel, making for a stronger header.

My bad, I did not specify coated mild steel. I would not run an uncoated steel header.
Maybe 304 would work fine on non turbo application, someone's got to try

[RacerFreakXXX]

think it will sound like this?

tein yaris

[jkuchta]

Thanks a lot for looking into the stainless option for us Richard.


Also, ...about that split header flange.....


How are you bolting this thing onto the cylinder head? Are you not using the center bolt (i.e. only using 4 header bolts)?

[richardholdener]

The prototype header employed a split flange to facilitate installation, but production pieces will have a single flange like the stock ex man. The header will be two piece, but the connection will come down on the primary tubing. The header has to be a 2-piece design to allow for installation. On the prototype, we did use the center bolt but with a washer to secure both halves-it worked great.

Originally Posted by jkuchta

Thanks a lot for looking into the stainless option for us Richard.


Also, ...about that split header flange.....


How are you bolting this thing onto the cylinder head? Are you not using the center bolt (i.e. only using 4 header bolts)?