Exhaust, Gauges, Dyno, Dawse, Needles & Intercoolers

you need to run a CAT you wouldnt notice the difference it would be minimum.
There are many high flow CATs on the markets, I had a 3" done first and did the
high flow CAT later , didnt notice any difference, with a fine of say $200k I would
run a Cat

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Originally Posted by bigguwesty

Cat cpi is a very open topic lol.
If simply the cpi changes then a 100cpi will flow better than a 200cpi.

But take my Scott's rods cat.
Its 200cpi in a 4" body.
So although I have more cores per inch than the stock playtime cat it flows the same if not better.
The Scott's rods cat is also completely stainless where as the playtime one is ceramic core when I investigated.

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Yeah I was told by an exhaust shop that a metallic core is better than a ceramic core too. Cant remember the reason behind it though.

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Originally Posted by mudski

Yeah I was told by an exhaust shop that a metallic core is better than a ceramic core too. Cant remember the reason behind it though.

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Its a smoother profile.
The course surface of ceramic makes friction and turbulence.
Not great for efficiency.

Rang a couple of exhaust places this morning. One quoted about $1K, the other $1500. More than I was hoping to pay, but by the time I get an eBay zorst, pay for that & freight and get it fitted I'll be near $1K anyway.

The $1500 was a complete end to end custom build, going around everything that's in the way, using (something that I'm still not 100% sure what it is) heavier flex bellows (??) so the zorst has better support, flow through muffler etc. Not stainless, alumised steel. I'm past all this under car work type work now, and the appeal of paying more for a walk in walk out thing is inviting. And if it falls to pieces I can take it back say "fix this". My stock 2" zorst is already rubbing on my oversize rear shocks, a custom build wouldn't.

Hmmm.

I gotta get some guages soon.

I'm almost at that point when you say bugger it and just take the plunge.

Thank you all very much for your help & advice, it's greatly appreciated.

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Originally Posted by 10G

Rang a couple of exhaust places this morning. One quoted about $1K, the other $1500. More than I was hoping to pay, but by the time I get an eBay zorst, pay for that & freight and get it fitted I'll be near $1K anyway.

The $1500 was a complete end to end custom build, going around everything that's in the way, using (something that I'm still not 100% sure what it is) heavier flex bellows (??) so the zorst has better support, flow through muffler etc. Not stainless, alumised steel. I'm past all this under car work type work now, and the appeal of paying more for a walk in walk out thing is inviting. And if it falls to pieces I can take it back say "fix this". My stock 2" zorst is already rubbing on my oversize rear shocks, a custom build wouldn't.

Hmmm.

I gotta get some guages soon.

I'm almost at that point when you say bugger it and just take the plunge.

Thank you all very much for your help & advice, it's greatly appreciated.

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Ring Manumatic exhausts. They are the makers of Redback and do sell direct. They make two ranges, one they call their Dinkum Exhaust and the other, erm not sure, Extreme I think, but its the best of the best in terms of cats, mufflers and flange setups.

Kinda off topic. It would be real interesting to do a dyno run on two identical zorsts, but one using mandrel bends and one not. I would safely bet there is f.a difference when fitted to a Patrol.

Have you decided where and what style gauges you will use ,if you
go the pillar pod route I may be able to help a bit.

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Originally Posted by threedogs

Have you decided where and what style gauges you will use ,if you
go the pillar pod route I may be able to help a bit.

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No I haven't yet. I have a mobile phone holder/coupler where the pillar pod goes. I may go with a single combined round gauge or 2 rectangular digital gauges, not too sure.

Quote:

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Originally Posted by mudski

Ring Manumatic exhausts. They are the makers of Redback and do sell direct.

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I checked out the Extreme online. With muffler & cat, around $1250.

If you want another idea you can use a tripple pod on top of the dash,
I have water temp ,,,volt and clock the first 2 are red digital its just
velcroed onto the dash pad

think I may settle on a dual egt/boost gauge by redarc. couldn't find any autometer gauges, nor mcnally gauges. I sent McNally a message to see if they have any distributors down here and also shipping costs from the US.