[Healeys] FW: Side exhaust idea

[Simon Lachlan]

With reference to the noise factor, I don’t notice it. Maybe it’s a reasonably effective silencer. First of its kind? Maybe I’m as deaf in my left ear as I am in my right.

One difference – and all to the good – we have a lot of roads down here with stone walls on either side. Kind of like a “Dry stone wall” but with earth behind them. Anyhow, I’ve got a couple of favourites where, revs up, the back echo makes the car sound like a low flying Spitfire.

I suppose it helps having the driver’s seat on the opposite side from the exhaust, just as nature intended!

Simon

 

From: Michael [mailto:michael.salter at gmail.com] 
Sent: Tuesday, November 24, 2015 15:51
To: Simon Lachlan; 'Healey List'
Subject: RE: [Healeys] FW: Side exhaust idea

 

Funny story about side exit exhausts.
Back when I was a starving student I installed a side exit system on my early LHD BJ8 both because I couldn't afford the full system and being a Phase 1 the back was so low that the cross resonators frequently dragged on the ground.
The system was very noisy (which at the time I thought was great) but resulted in terrible headaches for the driver...me!!!
When I sold that car to buy my 100S I thought that although the"S" had similar side exit pipes because it was RHD that would be the passengers problem 😊.
WRONG. 
Michael S
BN1 #174

  _____  

From: Simon Lachlan <mailto:simon.lachlan at homecall.co.uk> 
Sent: ‎24/‎11/‎2015 2:39 a.m.
To: 'Healey List' <mailto:healeys at autox.team.net> 
Subject: [Healeys] FW: Side exhaust idea

I sent this last night, but it didn’t make it. I’ve cut the pictures’ size down. Again:-

“When I decided to explore the idea of a side exhaust for my 3000 MkII BT7 I was appalled at the cost and mostly by the fact that one had to buy, at least, a whole new silencer which came with side exit pipes.

It occurred to me that a better solution would be to swap the pair of long pipes that came out of the box and went to the rear for a pair that simply came out of the box and curved off to the side. ie to keep the box, downpipes etcetc and only swap the last bit of pipework. 

Yes, I know that none of this is much use to BJ8 owners. At least, I presume as much. Depends how vital the second, rear, box is.

Anyhow, I mentioned this before and a few people asked for more info....pics and dimensions. I’d lost the precise blueprint that I drew up for the stainless exhaust man and didn’t have any useful pics. Well, the system is on the workshop floor now and I’ve taken a few pics and got the tape measure out. Hard to be precise with curves, but you’ll get the idea.

It’s been on for about 5 years and seems to be doing OK. Done +/- 7,000 miles I’d guess.

See attached. (Being able to send attachments is such a great improvement. Being able to receive them is even better!)

 

So, sorry to bother all of you....but I did say that I’d get back with the details. I just didn’t say that it might take a year or two!

Simon”

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