Headers. Trials and Tribulations.
Well, Back to these used stainless steel headers. It took me a week or 2 to figure out that this LH Header interferes SEVERELY with my Omega spring on the 915 transmission clutch mechanism. And I was so smug and proud of my used M&K exhaust purchase on eBay..!
Oh well, see what I mean? Orange circle may give you some perspective on the battle for real estate that the Omega spring had no chance in winning. I guess these headers are perfect for earlier 901 or 915-equipped cars that have the simple clutch arm mechanism.
Time to open the wallet – again! This time I had to bite the bullet and make a purchase of 1-5/8” primary headers that avoid the transmission space. Patrick Motorsports had these in-stock and shipped same day. Really nice work and perfect fit.
Lots of room for my Omega spring!
And finally, I decided to help my lower COPs with a roll of Amazon header wrap. Inexpensive but had good reviews. Bought 4x what I’ve used so far. More stuff to go on the shelf. What’s new. This small box can sit beside those older headers!
The LH 4.9 LSU air/fuel sensor is wired directly into the ECU Master Black. And with a common plenum, it is sufficient. That left me with an empty threaded bung on RH header so I installed a stand-alone Innovative Digital MTX-L Plus AFM gauge. Wired in a water-tight fuse holder, water-tight relay, and used the 8’ cable that came with the gauge (that runs through the tunnel at firewall and under passenger seat and passenger floor mat to reach the under dash gauge. I like having a quick visual reference to what’s going on with AFR’s. And the extra silver gauge bezel sorta matches my dash instruments. Really like it. And if I should want it gone, it would take 10 minutes to remove gauge, hide the cable, and pull the fuse.
