I've been diagnosing a poor idle problem lately, and just figured out what the problem was. My MAC equal length shorty headers have burnt there way through the plug boot of the 3rd piston back on the passenger side, and now the plug wire is arcing onto the header tube. The clearance from the header to the plug on that cylinder looks as if there is no way to fit a plug wire in there without touching!!
To make matters worse, theres also a header tube touching an A/C line, which has already deteriorated it to the point where it will need replacing. BBK unequal shorties, here I come!
__________________
91 GT Convertible
MAC CAI, BBK unequal ceramic coated headers, MAC H-Pipe, Flowmaster cat backs, short throw shifter
Sponsored Links
This ad is not displayed to registered members. Register your free account today and become a member on Mustang Forums!
You might need to change the angle of the boot on the plug wires and re route that AC line, these are common problems when putting headers on any car no matter what brand they are.
__________________
GET IN THE RING!
RIP tripsevn7
4/1/77 - 7/27/08
hey man, whats up, i had the same problem w/ my mac headers..if you have a speed shop around your going to need to get a set of Taylor wires...they specifically make a rrrreal small boot and a 90 degree angle to prevent the boot from getting burnt up and misfiring
Vehicle: 1996 Mustang GT,1998 Audi A4,2004 GMC Envoy
Location: Holland, MI
Posts: 2,466
RE: #$%& MAC Headers!!!
They also make a sock that goes over your plug so it doesnt't get burned. I have seen them at Advance Automotive. I needed 2 on my plugs when I put my MAC headers on. I don't know the quality of the ones at Advance I got mine at a Local Speed Shop
__________________ Detroit Lions Please Leave Michigan!
They were on the car when I bought it. I personnaly don't buy MAC stuff either. They're not even chrome, just painted. So as you can imagine they're covered in rust and look crap. I'm just gonna swap em out with some BBK unequal ceramics so it looks nicer and I have more room in there. I've had BBK's on another car with no probs. To me it's not worth the extra 2 or 3 hp to deal with the hassle of equal lengths. If anyone wants some rusty POS MAC headers let me know, LOL!
__________________
91 GT Convertible
MAC CAI, BBK unequal ceramic coated headers, MAC H-Pipe, Flowmaster cat backs, short throw shifter
it's not the headers..must as you don't want to take the blame of it....I used heating tape which is metal and put it on my boot..never a problem with burnt boots
Yeah I got a pair of MAC headers those Piece of Sh!t headers were a pain in the ass, they came warped and didnt line up correctly I always had a leak. To fix it I had to head up the tube with a damn torch and tighting them down to a spare head I had.
__________________
selling supercharger,heads,intake,everything,parting out car pm me
#$%& MAC Headers!!!
