1990 Obx install
Thread Starter
Racer
Joined: Mar 2008
Posts: 254
Likes: 0
From: Perth W.A
1990 Obx install
Hi,
I'm an Australian with a 1990 coupe.
I've been on here a little and everyone has been helpful.
So I need to ask about the obx header install.
I have searched and there are mixed opinions about obx,
Though they all said they are great once in. I have been doing the install myself, learning about the l98 as I go, I'm a noob with these cars.
My concern is I got the passenger header in place but it is touching the Heat guard for the fuel lines. Does this guard need to be bent so not touching?
The driver header is in too and touching the guard for the brake lines. Again do these need to be bent to make room or can I take off. Will there be hear issues?
But main issue with that header is the oil hose and filter are touching the pipes to.
I thought these headers would have fitted better and not needed bending to clear the oil filter.!?
Is there another filter I can buy that's smaller.
The part that the filter screws onto, can I turn that so oil hose is out of contact with header?
Sorry about the long thread. Any help appreciated.
Thanks Tyson
I'm an Australian with a 1990 coupe.
I've been on here a little and everyone has been helpful.
So I need to ask about the obx header install.
I have searched and there are mixed opinions about obx,
Though they all said they are great once in. I have been doing the install myself, learning about the l98 as I go, I'm a noob with these cars.
My concern is I got the passenger header in place but it is touching the Heat guard for the fuel lines. Does this guard need to be bent so not touching?
The driver header is in too and touching the guard for the brake lines. Again do these need to be bent to make room or can I take off. Will there be hear issues?
But main issue with that header is the oil hose and filter are touching the pipes to.
I thought these headers would have fitted better and not needed bending to clear the oil filter.!?
Is there another filter I can buy that's smaller.
The part that the filter screws onto, can I turn that so oil hose is out of contact with header?
Sorry about the long thread. Any help appreciated.
Thanks Tyson
Melting Slicks
Joined: Sep 2010
Posts: 2,422
Likes: 202
Hi,
I'm an Australian with a 1990 coupe.
I've been on here a little and everyone has been helpful.
So I need to ask about the obx header install.
I have searched and there are mixed opinions about obx,
Though they all said they are great once in. I have been doing the install myself, learning about the l98 as I go, I'm a noob with these cars.
My concern is I got the passenger header in place but it is touching the Heat guard for the fuel lines. Does this guard need to be bent so not touching?
The driver header is in too and touching the guard for the brake lines. Again do these need to be bent to make room or can I take off. Will there be hear issues?
But main issue with that header is the oil hose and filter are touching the pipes to.
I thought these headers would have fitted better and not needed bending to clear the oil filter.!?
Is there another filter I can buy that's smaller.
The part that the filter screws onto, can I turn that so oil hose is out of contact with header?
Sorry about the long thread. Any help appreciated.
Thanks Tyson
I'm an Australian with a 1990 coupe.
I've been on here a little and everyone has been helpful.
So I need to ask about the obx header install.
I have searched and there are mixed opinions about obx,
Though they all said they are great once in. I have been doing the install myself, learning about the l98 as I go, I'm a noob with these cars.
My concern is I got the passenger header in place but it is touching the Heat guard for the fuel lines. Does this guard need to be bent so not touching?
The driver header is in too and touching the guard for the brake lines. Again do these need to be bent to make room or can I take off. Will there be hear issues?
But main issue with that header is the oil hose and filter are touching the pipes to.
I thought these headers would have fitted better and not needed bending to clear the oil filter.!?
Is there another filter I can buy that's smaller.
The part that the filter screws onto, can I turn that so oil hose is out of contact with header?
Sorry about the long thread. Any help appreciated.
Thanks Tyson
Just to clarify. You did purchase the 85 - 91 OBX header kit correct. I personally have the LT1 OBX headers. They did need
the slightest adjustments. They may not be high grade stainless
but they are stainless. making them a excellent value. Performance wise. I believe pound for pound they OBX will give very close Dyno results to many competitors!! @ 1/4 the price.
and yes!! You should route your lines away from the headers
To eliminate a fire hazard. Ps the clamps are terrible. I suggest stainless T-clamps.
Thread Starter
Racer
Joined: Mar 2008
Posts: 254
Likes: 0
From: Perth W.A
Tyson,
Just to clarify. You did purchase the 85 - 91 OBX header kit correct. I personally have the LT1 OBX headers. They did need
the slightest adjustments. They may not be high grade stainless
but they are stainless. making them a excellent value. Performance wise. I believe pound for pound they OBX will give very close Dyno results to many competitors!! @ 1/4 the price.
and yes!! You should route your lines away from the headers
To eliminate a fire hazard. Ps the clamps are terrible. I suggest stainless T-clamps.
Just to clarify. You did purchase the 85 - 91 OBX header kit correct. I personally have the LT1 OBX headers. They did need
the slightest adjustments. They may not be high grade stainless
but they are stainless. making them a excellent value. Performance wise. I believe pound for pound they OBX will give very close Dyno results to many competitors!! @ 1/4 the price.
and yes!! You should route your lines away from the headers
To eliminate a fire hazard. Ps the clamps are terrible. I suggest stainless T-clamps.
I don't think the lt1 does!?
They are nice and solid feel. I think good value
So I should remove the shields??
The lines metal will they be ok not touching header.
Thanks for the reply.
Thread Starter
Racer
Joined: Mar 2008
Posts: 254
Likes: 0
From: Perth W.A
Safety Car
Joined: Nov 2009
Posts: 3,973
Likes: 341
From: Adelaide South Australia
you can buy the short oil filters for gen1 chev pretty much anywhere, have a look on e bay to get an idea.
Corvette Stories
The Best of Corvette for Corvette Enthusiasts
Top 10 Most Expensive Corvettes Ever Sold on Bring A Trailer
Brett Foote
10 Things Every Corvette Owner Needs (2026 Edition)
Michael S. Palmer
8 Most "Only Corvette Owners Understand" Quirks and Problems
Pouria Savadkouei
10 Reasons the C6 Z06 is Still A Performance Benchmark After 20 Years
Joe Kucinski
How Much Horsepower Every Corvette Engine "LOST" in 1972
Joe Kucinski
Top 10 DOs and DON'Ts for Protecting Your Convertible Top!
Michael S. Palmer
Top 10 Most Explosive Corvettes Ever Made: Power-to-Weight Ratio Ranked!
Joe Kucinski
150 hp to 1,250 hp: Every Corvette Generation Compared by the Specs That Matter
Joe Kucinski
8 Coolest Corvette Pace Cars (and Replicas) of All Time
Verdad Gallardo
Advanced
Joined: Aug 2007
Posts: 60
Likes: 0
From: Hood River OR
Tyson, how is your install going? Where did you buy your OBX headers from? I tried buying the L98 headers from Racing Parts Depot and they said they were several months out, I followed up a few months later and no response. Maybe Australia has a better retailer?