Renix aftermarket header

[Knucklehead97]

 

 

 

 

Hi everyone,

 

Using an HO manifold on a Renix 4.0-

 

Is there an advantage, or is this a cost/availability issue?

 

Thanks!

 

Gene

It's an advantage also. More power.

 

Even more if you have a custom built downpipe without the factory crush in it.

 

Off to work..............

have you got a picture of how you get rid of the crush? I've read how to, just can't picture it...

I tried to get a photo with no success. Do you have a lift on your Jeep?

my 2wd has about a 1" lift in the front currently to level it out a bit. I'll be installing GS metric ton leafs (the group buy type) over the summer and matching the front lift to whatever the rear brings. So anywhere from 1-3" probably. Plus, the Jeep is only 2wd so the driveshaft clearance isn't an issue FOR NOW. But I do plan to convert to 4x4 eventually in the far future just for the heck of it.

[DirtyComanche]

 

 

 

It's an availability thing.

 

Not all HO headers will clear the Renix intake manifold. I found that out the hard way.

I just used a grinder to grind down the intake manifold enough to fit.

 

And as I said before, that won't fix an issue with the tubes fouling on the intake runners.  The Renix intake has the runners much lower on it than either of the HO style intakes.  If the header tubes have too gentle of a radius out of the exhaust ports they will hit the intake runners, and a grinder isn't going to fix that (not in a way that works).

 

A stock HO header, no big deal, do a little clearance work on the flanges if need be.  But why run a stock header?

 

You're referring to the late late models with the swooped up intake manifolds that take that header. Correct. That won't work.

 

But. get one for a 91 to 96 and you're fine. 

 

 

The header I just posted will fit an early HO intake (or later, would fit the later one better) but can't possibly fit a Renix intake.

[Knucklehead97]

 

have you got a picture of how you get rid of the crush? I've read how to, just can't picture it...

 

I built my own downpipe. 2.5" cheap 409 stainless.

 

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I never took a picture of it installed for whatever reason, but it's very tight, and that's with running an axle that offsets the pinion about 2" farther left than stock...

it looks sharp though! :D