Headers in... OMG!
Thread Starter
Racer
Joined: May 2003
Posts: 304
Likes: 1
From: beaverton oregon
Headers in... OMG!
Loud and very fast. Hard to keep traction... Much better through entire RPM range... Ported heads are finally happy...
Sort of scary, really...
Also found out I had the exhaust gaskets in upside down... all better now...
Happy camper, need a tune...
Sort of scary, really...
Also found out I had the exhaust gaskets in upside down... all better now...
Happy camper, need a tune...
Le Mans Master
Joined: Jun 2002
Posts: 6,097
Likes: 0
From: High Plains Drifter Fayetteville, AR
Originally Posted by TankerVette
Also found out I had the exhaust gaskets in upside down... all better now...
Glad you got it sorted though. It really made a difference on my L98.
Melting Slicks
Joined: Apr 2001
Posts: 2,877
Likes: 7
Originally Posted by RUBYREDVETTECARD
Awesome, did you toss the cats? Which headers did you install?? Any shortcuts or words of advice you want to pass along?? 
Mike D.
Mike D.
also I was not able to get at the upper cat mounting bolt on the driver side of the car so I just cut the bracket to get the cat off the car.
Other than that the installation went smooth and the results are good
Thread Starter
Racer
Joined: May 2003
Posts: 304
Likes: 1
From: beaverton oregon
...cats are gone for now, will eventually get high flows...
...Headers are Exotic Muscle...
...the heads are OEM ported by Advance Induction...
...the backs of both of my hands looks like they were hit with a belt sander
...Headers are Exotic Muscle...
...the heads are OEM ported by Advance Induction...
...the backs of both of my hands looks like they were hit with a belt sander
Race Director
Joined: Aug 2003
Posts: 11,043
Likes: 3
From: San Jose Pat Tillman - American Hero
Originally Posted by Ruby6spd
also I was not able to get at the upper cat mounting bolt on the driver side of the car so I just cut the bracket to get the cat off the car.
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Team Owner
Joined: Oct 2004
Posts: 81,241
Likes: 3,063
From: altered state
St. Jude Donor '05
Originally Posted by TankerVette
...cats are gone for now, will eventually get high flows...
...Headers are Exotic Muscle...
...the heads are OEM ported by Advance Induction...
...the backs of both of my hands looks like they were hit with a belt sander
...Headers are Exotic Muscle...
...the heads are OEM ported by Advance Induction...
...the backs of both of my hands looks like they were hit with a belt sander
Thread Starter
Racer
Joined: May 2003
Posts: 304
Likes: 1
From: beaverton oregon
Forgot to mention lessons learned:
-Have the exhaust fitting done by someone else. A true PITA and still not quite right.
-GM engineers were not concerned about the user being able to get at nuts and bolts. They will have a lot of explaning to do when they get to the Pearly Gates (so will I, after all the cussing I did)
-Have a hacksaw and lots of blades available for the aforemention brackets.
-The '95 has a third rogue O2 sensor aft of the Cats. I have simply connected and tied it off, no codes so far...
-Make sure that your spark plug socket is the type that has a hex top. #4 and I think #5 must be tighted with a wrench on the socket. A rachet will not fit.
-It is impossible (or seemingly so) to get a socket on a few of the header bolts. Not enough clearance. Bring a wrench and a lot of patience.
Thanks for the inspiration, folks. Feel that I know have a truly bad-*** car
-Have the exhaust fitting done by someone else. A true PITA and still not quite right.
-GM engineers were not concerned about the user being able to get at nuts and bolts. They will have a lot of explaning to do when they get to the Pearly Gates (so will I, after all the cussing I did)
-Have a hacksaw and lots of blades available for the aforemention brackets.
-The '95 has a third rogue O2 sensor aft of the Cats. I have simply connected and tied it off, no codes so far...
-Make sure that your spark plug socket is the type that has a hex top. #4 and I think #5 must be tighted with a wrench on the socket. A rachet will not fit.
-It is impossible (or seemingly so) to get a socket on a few of the header bolts. Not enough clearance. Bring a wrench and a lot of patience.
Thanks for the inspiration, folks. Feel that I know have a truly bad-*** car
Team Owner
Joined: Aug 2000
Posts: 40,156
Likes: 45
From: San Pedro CA
Originally Posted by TankerVette
Forgot to mention lessons learned:
-Have the exhaust fitting done by someone else. A true PITA and still not quite right.
-GM engineers were not concerned about the user being able to get at nuts and bolts. They will have a lot of explaning to do when they get to the Pearly Gates (so will I, after all the cussing I did)
-Have a hacksaw and lots of blades available for the aforemention brackets.
-The '95 has a third rogue O2 sensor aft of the Cats. I have simply connected and tied it off, no codes so far...
-Make sure that your spark plug socket is the type that has a hex top. #4 and I think #5 must be tighted with a wrench on the socket. A rachet will not fit.
-It is impossible (or seemingly so) to get a socket on a few of the header bolts. Not enough clearance. Bring a wrench and a lot of patience.
Thanks for the inspiration, folks. Feel that I know have a truly bad-*** car
-Have the exhaust fitting done by someone else. A true PITA and still not quite right.
-GM engineers were not concerned about the user being able to get at nuts and bolts. They will have a lot of explaning to do when they get to the Pearly Gates (so will I, after all the cussing I did)
-Have a hacksaw and lots of blades available for the aforemention brackets.
-The '95 has a third rogue O2 sensor aft of the Cats. I have simply connected and tied it off, no codes so far...
-Make sure that your spark plug socket is the type that has a hex top. #4 and I think #5 must be tighted with a wrench on the socket. A rachet will not fit.
-It is impossible (or seemingly so) to get a socket on a few of the header bolts. Not enough clearance. Bring a wrench and a lot of patience.
Thanks for the inspiration, folks. Feel that I know have a truly bad-*** car
And I agree, get with Tom Wong regarding a tune.
Pro
Joined: Jul 2004
Posts: 639
Likes: 0
From: 1985 L98, Auto. O'FALLON, IL
Originally Posted by TankerVette
...cats are gone for now, will eventually get high flows...
...Headers are Exotic Muscle...
...the heads are OEM ported by Advance Induction...
...the backs of both of my hands looks like they were hit with a belt sander
...Headers are Exotic Muscle...
...the heads are OEM ported by Advance Induction...
...the backs of both of my hands looks like they were hit with a belt sander
Pro
Joined: Jul 2004
Posts: 639
Likes: 0
From: 1985 L98, Auto. O'FALLON, IL
Originally Posted by TankerVette
...cats are gone for now, will eventually get high flows...
...Headers are Exotic Muscle...
...the heads are OEM ported by Advance Induction...
...the backs of both of my hands looks like they were hit with a belt sander
...Headers are Exotic Muscle...
...the heads are OEM ported by Advance Induction...
...the backs of both of my hands looks like they were hit with a belt sander
Thread Starter
Racer
Joined: May 2003
Posts: 304
Likes: 1
From: beaverton oregon
Left the AIR pump and EGR on...
I'm willing to lose a couple of HP for pollution and I understand that the EGR keeps combustion temps a bit more under control... I am already having a bit of a problem controlling knock, and removing EGR would potentially cause more (at least this is what I read...)
Am trying to convince the wife to let me get the high flow cats sooner rather then later, but the EM's were pretty damned expensive...
I'm willing to lose a couple of HP for pollution and I understand that the EGR keeps combustion temps a bit more under control... I am already having a bit of a problem controlling knock, and removing EGR would potentially cause more (at least this is what I read...)
Am trying to convince the wife to let me get the high flow cats sooner rather then later, but the EM's were pretty damned expensive...
