BEC and R1 Exhaust any good?

[Crazy Eddie]

Hiya,

Right then in my quest to open up a couple more track days for the car I have decided to sort the exhaust noise.

From reading on here: www.westicles.net I have found an R1 exhaust on ebay and was hoping to use it to reduce the noise.

Now from doing a search on here it appears that the R1 exhaust does loose it's quieting qualities relatively quickliy and so is it better for me to just put it on for track days and use the standard westfield exhaust for road use?

Have any of you got photos of how you have mounted yours as my current one has the mounting on the side of the car and that won't fit for the R1.

Once I have the mounting point will I be ok to keep changing for track days or will these prove a pain and possible damage?

Cheers and lookforward to any help. PS my fabricating skills are limited so if anyone has a proven method that would be great.

Eddie

[slippy]

Westicles is Alyuprights site, builder or our car and if I remember right Ed had numerous issues with noise so went for a monster bespoke one, might be worth dropping him a mail

[Crazy Eddie]

Cheers Slip will do.

Although there appears to be another problem which is when I fitted the exhaust, to look at how best to mount it, it was too long and so I had to remove the rear wheel arch to fit it. Now even with it fully fitted it is still too long and so I can't fit the wheel arch back on.

CR@P!!!!

I guess the end piece that has been added is too long   for my car.

Options??

Cheers

Eddie

[stu999]

Stillsaw?

[ChrisG]

They do tend to lose their effectiveness somewhat, and you'll still struggle to get anything under 100-102db @ 7500-8000, even with a good one. By the time you've bought one for £50 and paid someone to weld on an angled outlet and a suitable inlet though, you're half way towards a decent sized repackable silencer that will do a much better job and will last.

This is what I replaced my R1 can with, its a Simpson 7" x 29" repackable stainless can which cost just over £200 in the group buy, although would be nearer £250 as a one off I think. I have tested it unofficially with a noise meter I've got access to and its around 96db at 8k rpm (2003 R1), but thats with a sausage air filter and a hole in the bonnet to accomodate it, so Im getting a lot of induction noise in there still. With an airbox Id probably get it a bit lower on the static but quite a bit lower on driveby where induction counts for quite a bit as the engine is under load.

[Crazy Eddie]

Cheers Chris,

Yeah that is probably what I should have just invested in but seemed like a quick and cheap fix the old R1 (untill I read that they loose effectiveness after buying   )

Managed to fit it today and so will only use for Track Days to help it last longer.

Hopefully noise testing it tomorrow evening but seems miles quieter than standard  

I assume you tell them your red line is at 10k then?

Could we not just say 7k ?

[ChrisG]

10k is just about passable, I think the days of convincing them your bike engined car only revs to 7k are long gone