OBX Headers?

[tomtom72]

Originally Posted by mgbrv8

As I stoop under the fire fight. I have a little off topic question, as I was removing my factory headers off the car I looked into the back side of each. I noticed that the drivers side headers catalytic converter was melted in the middle. Now would this be a sign of failing injectors, a failure of the smog system, a tune issue ( my car has a factory tune now but has had a tune on it in the past I believe), or a O2 sensor starting to degrade. It wasn't setting any codes before I tore it down and I had just finish a 10,700 mile road trip in it. Any constructive input would be greatly appriciate. Thank you gentalmen.

Dave

I'm not disputing GC's statement as he actually went thru broken cats w/ his Z. But at BG this yr a brother had an ignition coil go out and you should have seen the glow at night....due to the unburnt gas from those cylinders...man they were a light show under the car. Just saying couldn't that circumstance provide temps beyond the melting point of the bricks?

[secondchance]

Originally Posted by tomtom72

I'm not disputing GC's statement as he actually went thru broken cats w/ his Z. But at BG this yr a brother had an ignition coil go out and you should have seen the glow at night....due to the unburnt gas from those cylinders...man they were a light show under the car. Just saying couldn't that circumstance provide temps beyond the melting point of the bricks?

I was watching one of those Car TV shows on the Speedvison last Sunday where the host was touring a Cat manufacturer. The rep w/ the manufacturer listed misfire dumping raw fuel, silicone contaminats and phosphate blow by (sounds familiar? All that discussion over ZDDP reduction in oil?) as being primary causes for cat failure.
Oh, yeah! It was a show called "Muscle Car".

[Scrrem]

Originally Posted by tomtom72

I'm not disputing GC's statement as he actually went thru broken cats w/ his Z. But at BG this yr a brother had an ignition coil go out and you should have seen the glow at night....due to the unburnt gas from those cylinders...man they were a light show under the car. Just saying couldn't that circumstance provide temps beyond the melting point of the bricks?

Yes sir, that was me . Those cats were glowing red hot from only being driven a few miles with two cylinders out. I'll let you know how the top side of the cats look when I get them off next month for a header installation.
Rich

[tomtom72]

Jingle Bells Yun!!

Yes, that phosphate? or Zinc or whatever it was....I remember that. Makes me think I should rethink my choices for motor oil...well that and the link Jim from FLA posted to the oil guy's site.


Tom

[secondchance]

Originally Posted by tomtom72

Jingle Bells Yun!!

Yes, that phosphate? or Zinc or whatever it was....I remember that. Makes me think I should rethink my choices for motor oil...well that and the link Jim from FLA posted to the oil guy's site.


Tom

Hi, Tom,

Guess what? I have been reading this thread because my plan is to lose the cat and the factory exhaust manifold and slap on a set of headers. If you remember I have Florida tag and not encumbered by annual smog inspection.
In my opinion, just because it looks like a header and sounds like a header don't mean they all perform the same.
Although my knowledge is limited a successful header design should result in exhaust pulse stacking (at least equal length for all runners from the exhaust port to the collector), runner diameter (not too restrictive and yet not so large to stagnate the flow) and tunning effect (not quite figured out).
Bottom line, whether OBX is a knock off or not how good a knock off is it? The version they copied - how well was it designed?
Well, I gave up and sent an e-mail to Marc asking based on dyno numbers what is the best rwh he has seen between Jeal, Watson and SSW. Hopefully Marc can shed some light on the subject and I can make an intelligent decision.
Either way, exhaust headers and no cats!!!

[Scrrem]

Originally Posted by secondchance

Hi, Tom,
Guess what? I have been reading this thread because my plan is to lose the cat and the factory exhaust manifold and slap on a set of headers. If you remember I have Florida tag and not encumbered by annual smog inspection.

"Hello...Fairfax County.....I'd like to report a VA emissions violation"

[secondchance]

Originally Posted by Scrrem

"Hello...Fairfax County.....I'd like to report a VA emissions violation"

ha, ha.. My son is living in Jacksonville doing post-graduate and I am paying for his apartment. Ergo, I can claim Florida residencyadn I have been paying Fairfax County property tax because the county insited that since I am using the County road the car tax must be paid - legal!

Good try Rich!

[tomtom72]

I'm going to apologize to Dave for hijacking.

Yun, You S#$k. Jingle Bells anyway! I have to "comply" with NYS smog police regulations......I'm getting a handle on this though. It ain't so bad as it seems. I just add the A.I.R. system & keep the cats.

Rich, I would be interested in what you find when you get an eyeball on the cats.

[shaynezrl]

I just started reading this thread...i must say WOW!! OBX is making headers for our cars. I bought a set of their headers for my acura car years ago and it fit pretty good. There was a few thing that needed to be modified. The quality was not that good. At only $150.00 dollars it worked out good. Well you do pay for what you get. I only hope that they improve on their product since then. The headers that was posted earlier looked good and i hope the installation goes good.

Shayne

[rudolph schenker]