Headers for V8 cars, Please read
no rush here.
By all means take time.
Just a question, I take it at thi spoint, it will be required to remove some engine and steering components to install the driver's side header, but it will not actually require the engine be removed from the car?
Also, if its nessesary to relocate the catalytic converters, will that be expensive? I dont quite see how to relocate them anywhere on the exhaust without welding.
Just a question, I take it at thi spoint, it will be required to remove some engine and steering components to install the driver's side header, but it will not actually require the engine be removed from the car?
Also, if its nessesary to relocate the catalytic converters, will that be expensive? I dont quite see how to relocate them anywhere on the exhaust without welding.
Lexus Champion
Joined: Feb 2001
Posts: 3,124
Likes: 32
From: Texas
Originally posted by SC400-V8
By all means take time.
Just a question, I take it at thi spoint, it will be required to remove some engine and steering components to install the driver's side header, but it will not actually require the engine be removed from the car?
Also, if its nessesary to relocate the catalytic converters, will that be expensive? I dont quite see how to relocate them anywhere on the exhaust without welding.
By all means take time.
Just a question, I take it at thi spoint, it will be required to remove some engine and steering components to install the driver's side header, but it will not actually require the engine be removed from the car?
Also, if its nessesary to relocate the catalytic converters, will that be expensive? I dont quite see how to relocate them anywhere on the exhaust without welding.
Actually, one of the hardest parts of the installation on the post 98 cars is the removal of the drivers side manifold. This is not the case with earlier cars as several people have removed their manifolds and installed the Tex headers... so... we know that on 92-97 SC400s that the manifolds can be removed without pulling the engine. We do NOT know this about the 98 and later cars. Actual installation is a unknown and will be until we actually have prototypes to test fit.
As far as cat relocation... yes... welding will be required. This is something any exhaust shop can do but of course the quality varies. The best bet will be to relocate the cats under the car and bend pipe from the headers to the cats and then from the cats to the exhaust. Cost depends on individual choices, materials and designs.
Rookie
Joined: Nov 2003
Posts: 57
Likes: 0
From: Texas
Originally posted by jbrady
Jay,
Actually, one of the hardest parts of the installation on the post 98 cars is the removal of the drivers side manifold. This is not the case with earlier cars as several people have removed their manifolds and installed the Tex headers... so... we know that on 92-97 SC400s that the manifolds can be removed without pulling the engine. We do NOT know this about the 98 and later cars. Actual installation is a unknown and will be until we actually have prototypes to test fit.
As far as cat relocation... yes... welding will be required. This is something any exhaust shop can do but of course the quality varies. The best bet will be to relocate the cats under the car and bend pipe from the headers to the cats and then from the cats to the exhaust. Cost depends on individual choices, materials and designs.
Jay,
Actually, one of the hardest parts of the installation on the post 98 cars is the removal of the drivers side manifold. This is not the case with earlier cars as several people have removed their manifolds and installed the Tex headers... so... we know that on 92-97 SC400s that the manifolds can be removed without pulling the engine. We do NOT know this about the 98 and later cars. Actual installation is a unknown and will be until we actually have prototypes to test fit.
As far as cat relocation... yes... welding will be required. This is something any exhaust shop can do but of course the quality varies. The best bet will be to relocate the cats under the car and bend pipe from the headers to the cats and then from the cats to the exhaust. Cost depends on individual choices, materials and designs.
This sounds good. No engine pulling makes alot of us happy indeed.
I think if I end up doing this, it will be the last major upgrade for my car. I was thinking in a few years I would upgrade to a black 98-00 SC400, just maybe. But then I think these headers along with the ECU upgrade would actually just barely put my 92 on par in performance with the 98s, so It would be worth it just to keep what I have now.
I think if I end up doing this, it will be the last major upgrade for my car. I was thinking in a few years I would upgrade to a black 98-00 SC400, just maybe. But then I think these headers along with the ECU upgrade would actually just barely put my 92 on par in performance with the 98s, so It would be worth it just to keep what I have now.
Lexus Champion
Joined: Feb 2001
Posts: 3,124
Likes: 32
From: Texas
Originally posted by themustafa
wait wait wait... if installation is much easier on pre-98 sc400's, if we get 20 people to prepay for them, can we get a complete set made for that car without much issue? I'm willing to plop down 600 bucks right now if that is the case. I'm assuming that the passenger's side will be pretty identical to post-98 designs, and would work for those cars as well.
wait wait wait... if installation is much easier on pre-98 sc400's, if we get 20 people to prepay for them, can we get a complete set made for that car without much issue? I'm willing to plop down 600 bucks right now if that is the case. I'm assuming that the passenger's side will be pretty identical to post-98 designs, and would work for those cars as well.
Jay, yes, it is reasonable to assume that you can make stock 98+ power with exhaust mods on your 92 and at only 69k your car is still... "new"
Lexus Test Driver
Joined: Jan 2003
Posts: 1,250
Likes: 1
From: Georgia
I'm going to interject my slightly harsh .02 here:
Folks, take a chill pill. Only a few of us have put out anything out of pocket, so I honestly don't see why all the negative anxious pacing by people. It's not like John made everyone pay for the headers upfront and then made everyone wait 6 months to get them. He has been financing the vast majority of the entire R&D for this project simply because he thought it was the right thing to do.
How come when he asked for financial help to keep the project going in a thread that has THOUSANDS of views and HUNDREDS of posts only a HANDFUL of people stepped up to the plate to help?????? Where were all the inpatient people then???? I'm sorry, but there should only be a handful of people that have any right to be inpatient if at all.
Folks, take a chill pill. Only a few of us have put out anything out of pocket, so I honestly don't see why all the negative anxious pacing by people. It's not like John made everyone pay for the headers upfront and then made everyone wait 6 months to get them. He has been financing the vast majority of the entire R&D for this project simply because he thought it was the right thing to do.
How come when he asked for financial help to keep the project going in a thread that has THOUSANDS of views and HUNDREDS of posts only a HANDFUL of people stepped up to the plate to help?????? Where were all the inpatient people then???? I'm sorry, but there should only be a handful of people that have any right to be inpatient if at all.
I've followed this with interest and John you have done a fabulous job on this project. Because there is so much in this thread, can you condense the findings/issues for each generation vehicle fitment?
Thanks again.
Thanks again.
Secondly ..this is a FORUM...not 1984, not a police state...people are allowed to voice their opinions like it or not.
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Lexus Test Driver
Joined: Jan 2003
Posts: 1,250
Likes: 1
From: Georgia
Re: jmecbr900
Originally posted by Anthracite SC
jmecbr900,
IF that was in reference to me...here's my .04 cents:
Firstly, we've ALL been waiting patiently. You can't differentiate one for the other.
Secondly ..this is a FORUM...not 1984, not a police state...people are allowed to voice their opinions like it or not.
Thirdly, Jlbrady didn't ASK anyone for monitary contribution. ME for instance told him when and where I'd be ready to contribute money, so it is a mistake to assume the "complainers" in the forum are doing one thing and not to the other.
If people want to do it, they can do it. If people don't want to and express concerns it is their RIGHT to express their concerns just as much. as those who do
So just let the forum be as it is...
jmecbr900,
IF that was in reference to me...here's my .04 cents:
Firstly, we've ALL been waiting patiently. You can't differentiate one for the other.
Secondly ..this is a FORUM...not 1984, not a police state...people are allowed to voice their opinions like it or not.
Thirdly, Jlbrady didn't ASK anyone for monitary contribution. ME for instance told him when and where I'd be ready to contribute money, so it is a mistake to assume the "complainers" in the forum are doing one thing and not to the other.
If people want to do it, they can do it. If people don't want to and express concerns it is their RIGHT to express their concerns just as much. as those who do
So just let the forum be as it is...
Second, this is in fact a forum. A forum where POSITIVE feedback is welcomed and appreciated. NEGATIVE comments should be, as OLT highlighted in his post to remind you, either avoided or taken care of in private.
Third, John did in fact ask for monEtary help when the donor manifold was finally located. He did so in this thread and he did so publicly. What he didn't do was list out publicly WHO answered the call to help and who didn't because that was not necessary. Hence, noone but John KNOWS who did and who didn't help, so you may be correct about one thing....possibly someone that is complaining ALSO donated money when John asked. For this reason, I stated in my post that ONLY that person IMO has any right to complain if at all.
Finally, If you still have any issues to address with me directly, I welcome you to do so via PM or email where your negative comments can be handled properly and in accordance with CL guidelines.
Thread Starter
Joined: Feb 2001
Posts: 31,944
Likes: 2,737
From: North Carolina
Thanks for keeping it civil guys. Let's please keep further responses in PM and I'm sure JBrady will update us as soon as he has some new information. As you can tell from his prior posts, he's more anxious for this to get done than any of us are.