D2 Fuel Economy

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Originally Posted by BigJon

Some Disco II TD5s have the convertor, some don't. As a matter of interest, the non convertor engine pipe is a direct bolt in replacement for the convertor type, and is a LOT cheaper. I think the TD5 would pass the relevant emission tests regardless of whether it had the convertor or not (but that is my opinion, not a fact). As far as I know, the Australian standard of the day was a lot less strict than the Euro equivelant.

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I forget which site i was reading about this, but it was relating to the differant mods to be done to the TD5 exhaust which included, as Baz has done, grinding the webs out of the manifold, slotting some of the bolt holes in the manifold, removing the cat conv. all together, and removing the middle muffler.
Even the rave cd does'nt show a cat on it's exhaust diagrams. Mine might fall off one day:angel: so i can see if there is any differance without it.

Baz, if you rekon your changes have made a noticeable differance i may give it a go too.
I want my Beast to inhale and exhale as well as possible.

If your having trouble with broken studs, then yes go right ahead, it's a big job and not cheap if you don't do it yourself, i had to get a mechanic to do the studs as i don't have good quality thread taps.

Grinding the manifold is the easy part, i did that with a 4" angle grinder, it's the rest that's makes it expensive, wait till you have the broken studs and do it then.

Baz.

Hi,
I have one of these fitted, the 25" one and it took my Deisel back to 10l 100klms after it was ECU remapped by TombRaider (on his advice) and doing 12l 100 klms.

I am one happy Disco owner. 30 - 40% more power with the same fuel economy. I did not even bother to remove the Cat converter after fitting one of these. "They Work" :D

Vortex High Performance Exhausts

BradM