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H.O. Intake swap on Renix

Old 03-27-2017, 09:16 PM
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Default H.O. Intake swap on Renix

I have a 88 Renix XJ and was trying to install a Header for a H.O. engine I bought only to find the Renix manifold will not bolt on. What problems would I face if I changed the Renix intake manifoldb for a H.O. ?
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Old 03-27-2017, 11:55 PM
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Originally Posted by 88XJ2132 View Post
I have a 88 Renix XJ and was trying to install a Header for a H.O. engine I bought only to find the Renix manifold will not bolt on. What problems would I face if I changed the Renix intake manifoldb for a H.O. ?
It's not the intake manifold's fault. It's the exhaust manifold's fault. See below:
Attached Thumbnails H.O. Intake swap on Renix-intake-filing.jpg  
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Old 03-28-2017, 07:32 PM
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So all I would need to do is file my Renix intake manifold and the header for the H.O. should bolt up? I thought I would have to use a H.O. intake manifold, which would of led to a lot more problems.
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Old 03-28-2017, 07:34 PM
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This is the header I'm trying to use vs my old manifold
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Old 03-28-2017, 09:37 PM
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As long as the only interference spot is between the FLANGES of the intake and exhaust, yes.
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Old 03-28-2017, 09:56 PM
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After going back and checking two of the intake runners are hitting on the header pipe not allowing it to "sit low enough" to bolt up it seems. The H.O. looks like the runners would have more clearance.
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Old 03-28-2017, 09:57 PM
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What year is the exhaust for?
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Old 03-28-2017, 10:06 PM
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91 to 99, I've already lengthened the oxygen sensor wire, got a later model downpipe and have done the EGR delete for my intake.
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Old 03-28-2017, 10:09 PM
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Shouldn't have to lengthen the O2 sensor wires. I never did on the slew of them I did.
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Old 03-28-2017, 10:16 PM
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Once I saw the the intake wouldn't fit I put it back together with my old exhaust manifold and downpipe so I haven't actually tried the oxygen sensor. I guess that's what I get for assuming I had to lengthen it, oh well. I just don't want to have to use an H.O. intake manifold if I don't have to because of throttle body mounting issues, power steering, and fuel rail.
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Old 03-29-2017, 08:46 AM
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Originally Posted by 88XJ2132 View Post
Once I saw the the intake wouldn't fit I put it back together with my old exhaust manifold and downpipe so I haven't actually tried the oxygen sensor. I guess that's what I get for assuming I had to lengthen it, oh well. I just don't want to have to use an H.O. intake manifold if I don't have to because of throttle body mounting issues, power steering, and fuel rail.
Correct.
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Old 04-01-2017, 07:59 AM
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This dude on YouTube is super smart with the Renix

Watch this video for his Renix to H.O. swap

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