secondchance
08-22-2011, 10:47 AM
WAZOO gang helped me install a set of OBX headers last Saturday at WAZOO headquarter at Westminster, MD.
Headers were Jet-coated prior to install. Before the install, after the removal of the exhaust, I lined areas adjacent to headers (around the bell housing) with "Megamat" I had purchased at Ebay - about 1/16" adhesive backed foam/aluminum foil. This stuff sticks! After a quick wipe down w/ 409, I cut pieces of this mat and stuck it to the hump as high as I could get it.
Passenger side where we typically needed to extend connector for the O2 sensor was not necessary since OBX collector is about 10" forward of SSW version. We found knock sensor wire was cooked and broken so the cut was repaired and new flex conduit was used to cover all wires on both sides and secured away from the headers w/ zip-ties.
Headers went on without a drama but needed a persuation from Jim's hydraulic "jaws of life" to push the slip connection of the exhaust on the passenger side.
I kept my 94 factory exhaust minus the cats and the resulting sound is exactly what I was hoping for since I prefer relatively quiet exhaust at cruise. It sounds a shade louder at idle but not much. However, as the throttle is pushed you start to hear a growl starting around 2000 rpm and progressively louder as the rpm climb. The growl is not as raspy as Corsa but more mellow sound. Also, hp and torque gain can be felt through the entire rev range. I can definately feel the improved throttle response.
It was interesting to feel the difference in trans hump temperture between where I had lined vs. left alone. I think I will line the balance of trans hump the next time I get her on the lift.
I am running a borrowed 94 stock memcal while mine is being reprogrammed by Marc. It was intersting that for the first 30 miles or so the ECM was triggering the "check engine" light. After a while this stopped. It may be ECM was reading a sudden change in fuel mixture/O2 reading and eventually learned new parameter.
I am expecting a new memcal in next 2-3 days and we shall see how the ECM respond to new calibration.
Jim took a few pics (not a lot - too busy with the install) and when I get them I will post them.
OBX is a quality product and no unusual rigging was needed for install at bargain price, especially in my case (- I know, Bob, I know...).
Thanks to all WAZOO gang for the procurement, install and company.:cheers:
Headers were Jet-coated prior to install. Before the install, after the removal of the exhaust, I lined areas adjacent to headers (around the bell housing) with "Megamat" I had purchased at Ebay - about 1/16" adhesive backed foam/aluminum foil. This stuff sticks! After a quick wipe down w/ 409, I cut pieces of this mat and stuck it to the hump as high as I could get it.
Passenger side where we typically needed to extend connector for the O2 sensor was not necessary since OBX collector is about 10" forward of SSW version. We found knock sensor wire was cooked and broken so the cut was repaired and new flex conduit was used to cover all wires on both sides and secured away from the headers w/ zip-ties.
Headers went on without a drama but needed a persuation from Jim's hydraulic "jaws of life" to push the slip connection of the exhaust on the passenger side.
I kept my 94 factory exhaust minus the cats and the resulting sound is exactly what I was hoping for since I prefer relatively quiet exhaust at cruise. It sounds a shade louder at idle but not much. However, as the throttle is pushed you start to hear a growl starting around 2000 rpm and progressively louder as the rpm climb. The growl is not as raspy as Corsa but more mellow sound. Also, hp and torque gain can be felt through the entire rev range. I can definately feel the improved throttle response.
It was interesting to feel the difference in trans hump temperture between where I had lined vs. left alone. I think I will line the balance of trans hump the next time I get her on the lift.
I am running a borrowed 94 stock memcal while mine is being reprogrammed by Marc. It was intersting that for the first 30 miles or so the ECM was triggering the "check engine" light. After a while this stopped. It may be ECM was reading a sudden change in fuel mixture/O2 reading and eventually learned new parameter.
I am expecting a new memcal in next 2-3 days and we shall see how the ECM respond to new calibration.
Jim took a few pics (not a lot - too busy with the install) and when I get them I will post them.
OBX is a quality product and no unusual rigging was needed for install at bargain price, especially in my case (- I know, Bob, I know...).
Thanks to all WAZOO gang for the procurement, install and company.:cheers: