Blatman Posted April 25, 2005 Posted April 25, 2005 We tested two cars at Oakington this evening with the Westfield repackable silencers on. Mine (2ltr Zetec on 45 webers) made 89dba Chris Finlay's car (2lt VX with 45 Webers) at 88dba I think this is a little optimistic really but the Westy re-packable silencer is really quiet. I'd recommend it. Chaz. At what revs? Quote
langy Posted April 25, 2005 Posted April 25, 2005 We tested two cars at Oakington this evening with the Westfield repackable silencers on. Mine (2ltr Zetec on 45 webers) made 89dba Chris Finlay's car (2lt VX with 45 Webers) at 88dba I think this is a little optimistic really but the Westy re-packable silencer is really quiet. I'd recommend it. Chaz. At what revs? 4k IIRC Quote
Blatman Posted April 25, 2005 Posted April 25, 2005 And at what distance from the exhaust? 4000rpm on my Vx at half a meter is up around 96-98dbA on a freshly repacked SBD silencer, so a sub 90dbA reading is seriously impressive *unless* it's quite a long way from the exhaust exit... Quote
adhawkins Posted April 25, 2005 Posted April 25, 2005 a sub 90dbA reading is seriously impressive *unless* it's quite a long way from the exhaust exit... Or the meter isn't calibrated correctly... Andy Quote
langy Posted April 25, 2005 Posted April 25, 2005 And at what distance from the exhaust? About 1 metre Quote
Chris.B Posted April 25, 2005 Posted April 25, 2005 Mine's a Dunnell / Techcraft repackable silencer on a 2.0L Zetec on TB's - tested on Saturday at Combe at 98Db (4500 RPM, 1 metre from exhaust). Pics on my build site. Quote
davew Posted April 25, 2005 Author Posted April 25, 2005 Spoke to factory today none in stock, reckon they will have some in about 6 weeks time. Time to look elsewhere, think I may go for a Wunoff. Quote
Mark Stanton Posted April 25, 2005 Posted April 25, 2005 I've used a Wunoff and they're very good as well _ if you gotta go through SVA ask for "rolled edges" to the tailpipe Quote
ChrisF Posted April 25, 2005 Posted April 25, 2005 My Vx was tested at Oakington at 4K - 1m....I was surprised at how low this was Or the meter isn't calibrated correctly... I hope it was...Liam is a silverstone marshall and ought to have the correct equiptment Quote
chazpowerslide Posted April 25, 2005 Posted April 25, 2005 Yes it was a meter at 4K Mine tested the same at Oakington last year as well so i don't think Liam's noise meter is iffey. Chaz. Quote
adhawkins Posted April 25, 2005 Posted April 25, 2005 Ok, it wasn't my intention to suggest that he might have dodgy equipment. However, I've seen so much variation between noise meters that I don't know what to think any more... Andy Quote
davew Posted April 28, 2005 Author Posted April 28, 2005 Took the plunge and ordered a Wunoff 6" repackable silencer in brushed stainless steel, about 2 weeks lead time. Should look great. Quote
smithydar Posted April 30, 2005 Posted April 30, 2005 just out of interest dave coz im looking at getting a silencer before sva..how much is the wunoff can? darren Quote
adhawkins Posted May 1, 2005 Posted May 1, 2005 Around the £200 quid mark I think, perhaps a little more. Andy Quote
david matthias Posted May 1, 2005 Posted May 1, 2005 Hi I have a Wunoff can & am very impressed both with the can & there service. You should not have a problem with noise. From memory mine sva'd at about 96db Zetec on throttle bodies. As you are going through sva Ask Bob about the edges of the can at each end as mine were too sharp! Bob does know about this I spoke to him & e'mailed him pictures of my solution. He was intending to look into it. As this was last september you may be in luck. On the good side I did not have any probs with the tail pipe. & Yes around the £200 mark is correct. David Quote
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