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Loud exhaust!

I bit the bullet 4 months ago and spent £1300 on a custom stainless exhaust for my 4.2 V8 disco. It uses tubular manifolds with nearly 1 3/4" tubing from the headers down in to a 3" colector on either side of the engine. I have not used a balance pipe because I wanted it to smoke equally on cold winter morning (Sad I know!). It then has two small resonator boxes in the centre (like cherry bombs) and then exits at the rear on either side through a cut out in the bumper end caps. It sounds amazing at tick over and up to about 2000 rpm. After that it is not an exhaust for the people who don't like to be noticed on the open road. (NAS car style). But it makes me smile as I drive past cars parked at the side of the road and it set's off every car alarm..........

Brian Tonks Tonks4x4

Disco 4.2 V8 auto

90 3.5 V8 auto
Reply to
Tonks4x4
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Forgot a link to some piccy's

Before and after shot's

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Brian Tonks Tonks4x4

Disco 4.2 V8 auto

90 3.5 V8 auto
Reply to
Tonks4x4

Unless my eyes are deceiving me, it appears that your exhaust system goes -under- the gearbox crossmember. Surely this means it gets broken every time you go off road? Looking at the number of dents in my crossmember, I wouldn't want anything at all going on the underside of it. Plus the silencer boxes hang below the chassis line. Surely it ends up damaged loads?

Paul

-- Paul Everett repton at repton dot org

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Reply to
Paul Everett

On or around Sat, 13 Sep 2003 13:07:38 +0100, Paul Everett enlightened us thusly:

they do look a bit low.

I suspect that if you use the later 2-pipe EFi type manifolds and down-pipes, they're not too restrictive. The earlier single pipe system has reasonable bore downpipes and the main pipe is quite big (bearing in mind of course that 2x 1" bore pipe, f'rexample is only about 1.4"). The most obvious restriction in the standard system is in the Y piece, where the 2 pipes join, where the 2 pipes are squashed into a sort of D shape to fit into the larger pipe. If you eliminate that and reduce the number of cans, it should flow well enough for normal purposes.

I don't know if those manifolds will fit on a 101, mind. I'd be inclined, meself, to stick with standard manifolds unless you're doing a serious tuning job - I've seen a RR with custom 4-pipe manifolds, and they're a sod to get on and off - occupy more of the already restricted space than the standard items.

Reply to
Austin Shackles

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