What silencers do you guys use with underslung exhausts, to get the sound down to IVA acceptance levels? Photos of your exhaust systems would be good too if you have any
Thanks in advance....Nige
Exhausts
Re: Exhausts
This is my system for Ford 302 with Jag rear axle. Supplied by Gerry for the SVA test which if I recollect was a higher noise level than the current IVA.
Cheers, Clive.
(If I'm not here I'm in my workshop or on the golf course!)
(If I'm not here I'm in my workshop or on the golf course!)
- StewbieC
- T289R Committee
- Posts: 1356
- Joined: Mon Oct 13, 2008 12:50 pm
- Location: out in the sticks, Shropshire
Re: Exhausts
Have the same system as Clive and passed IVA no problem.
Got a few spare bits too, but don't have any headers.
Got a few spare bits too, but don't have any headers.
________________________________________________
Stu
Hawk 289, 66 Mustang Fastback with a 289 maximum smiles per mile..
Stu
Hawk 289, 66 Mustang Fastback with a 289 maximum smiles per mile..
Re: Exhausts
I too have Gerry's system, for a 302, which I believe uses 4 MGB silencers. I was told by the IVA examiner last July it was "well within" the level test. It is actually fairly civilised...
Iain
Iain
Re: Exhausts
Gerry's original exhaust only had the front box. The rear one was added to meet with the noise limits of the SVA. My intention was to remove the rear box and replace it with a straight pipe but on talking to Gerry he said there wasn't a significant change in the noise output. I do think the view of the rear boxes does look good from behind.
Cheers, Clive.
(If I'm not here I'm in my workshop or on the golf course!)
(If I'm not here I'm in my workshop or on the golf course!)
Re: Exhausts
Nige,
My system started life looking just like Clive's and Alan's as again it was supplied by Gerry.
After a few years of scraping the pipes under the axle I modified it to raise it up closer to the floor and found a route up over the Jag rear.
You can view the details already logged with the club's web site - go to our web front page and click on technical articles section - exhausts.
Only comment is that I felt that the system was noisier after the mod but that may have been caused by the silencer contents getting damaged when cutting them out and welding back into the new route.
Peter C
My system started life looking just like Clive's and Alan's as again it was supplied by Gerry.
After a few years of scraping the pipes under the axle I modified it to raise it up closer to the floor and found a route up over the Jag rear.
You can view the details already logged with the club's web site - go to our web front page and click on technical articles section - exhausts.
Only comment is that I felt that the system was noisier after the mod but that may have been caused by the silencer contents getting damaged when cutting them out and welding back into the new route.
Peter C
Re: Exhausts
Thanks for all the replies and photos, it's a great help. Looks like it'll be MGB silencers then Any idea of the bore sizes for inlet and outlet, is it 2"?
Thanks ...Nige
Thanks ...Nige
Re: Exhausts
Hi Stewart, are any of these parts for sale? we already have headersStewbieC wrote:Have the same system as Clive and passed IVA no problem.
Got a few spare bits too, but don't have any headers.
Cheers..Nige
- nikbj68
- T289R Member
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- Joined: Thu Jul 17, 2008 3:31 pm
- Location: Anglesey, North Wales.
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Re: Exhausts
My(Rover) headers are 2 1/4", but out of the silencer box is 2"! ( I know the box for sidepipes isn't relevant to rear exit...just sayin').
Hawk 289 FiA...AT LAST!!!