RisingPower Posted June 7, 2011 Posted June 7, 2011 Now got berk hfcs with the nismo, just wondering, do the two together automatically equal a fair bit of rasp? Seen some go down the route of pairing it with the motordyne xyz w/resonator to remove the rasp. Cheers Quote
Exotic Posted June 10, 2011 Posted June 10, 2011 From what I have seen and heard I think the closer you get to a full ‘race’ type of exhaust set up, which will typically include HFCs, Decats etc as well as an aftermarket backbox, then you WILL be getting more rasp. I have the Milltek exhaust which I believe is similar in tone to the Nismo and will be getting Berk HFCs installed in a couple of weeks so will post my findings. I like a bit of rasp, although not overly so. Quote
The G Man Posted June 10, 2011 Posted June 10, 2011 No rasp in my set up, Akrapovic Evo and Berks, just P51 Thunderbolt cacophony Doesn't help I know, but I can post whore my set up Quote
Husky Posted June 10, 2011 Posted June 10, 2011 I think most higher flowing cats = rasp, unless you have a posh exhaust further down to take it back out. Quote
RisingPower Posted June 10, 2011 Author Posted June 10, 2011 There's a bit of rasp, then there's the nismo + berk hfcs currently. I'm still in two minds about them. The rasp is what put me majorly off the M3 in the end. I like the added volume, but ~4k it gets pretty darn raspy and that's all you can hear, inside or out. Interesting smell too, I was expecting maybe a slight petrol smell but that isn't what you get. Crikey, I've also gotten this at ~2k revs too: Quote
Jez @ H-Dev Posted June 10, 2011 Posted June 10, 2011 The sound in the vid seems like the exhaust it vibrating against something... Quote
RisingPower Posted June 10, 2011 Author Posted June 10, 2011 Interestingly I haven't heard mine from behind, but I can't hear any rasp in the videos. I wonder whether it is just rattling against something and it just sounds different at 4k revs... Quote
DoogyRev Posted June 10, 2011 Posted June 10, 2011 +1 on what Jez Says It also seem's to be at the same-ish revs, which would suggest resonating on something hence the weird noise. Heat shield? Quote
RisingPower Posted June 10, 2011 Author Posted June 10, 2011 +1 on what Jez Says It also seem's to be at the same-ish revs, which would suggest resonating on something hence the weird noise. Heat shield? Yeah they mentioned that in the clip. Just a shame I have about however many other noises currently too Quote
martinmac Posted June 10, 2011 Posted June 10, 2011 I love the Nismo with the HFCs, it not subtle though. Everyone in the village know when I am home. Quote
RisingPower Posted June 10, 2011 Author Posted June 10, 2011 I love the Nismo with the HFCs, it not subtle though. Everyone in the village know when I am home. How does your hearing fare on long trips? Just found it a little... loud going around the m25/a11 Quote
martinmac Posted June 10, 2011 Posted June 10, 2011 Its not too bad at 70, As long as i dont drop into third. Then all hell lets loose. Quote
chippychip123 Posted June 10, 2011 Posted June 10, 2011 Listening to that clip I had a very similar sound when I fitted straight through decats with a OEM exhaust. Anything below about 3k made that horrible rattle/resonate sound to the point i had it on a ramp and ended up pulling the heat shield off around the STD Y pipe but it was still there. So needless to say they lasted all of about 24hrs on the car, and now have a home in my shed Quote
RisingPower Posted June 10, 2011 Author Posted June 10, 2011 I don't get any rasp I'm guessing yours doesn't sound like this though http://smg.photobucket.com/albums/v236/ ... riveby.mp4 http://smg.photobucket.com/albums/v236/ ... erkhfc.mp4 Quote
spursmaddave Posted June 10, 2011 Posted June 10, 2011 I don't get any rasp I'm guessing yours doesn't sound like this though http://smg.photobucket.com/albums/v236/ ... riveby.mp4 http://smg.photobucket.com/albums/v236/ ... erkhfc.mp4 Nope and for that I am eternally grateful.... I prefer subtlety.... unlike some Quote
Ian Posted June 10, 2011 Posted June 10, 2011 I don't get any rasp I'm guessing yours doesn't sound like this though http://smg.photobucket.com/albums/v236/ ... riveby.mp4 http://smg.photobucket.com/albums/v236/ ... erkhfc.mp4 Sounds a bit quiet to me Quote
RisingPower Posted June 10, 2011 Author Posted June 10, 2011 Sounds a bit quiet to me Pff, I've still got my hearing Not sure i'd keep it for long with a single exit Quote
Ian Posted June 10, 2011 Posted June 10, 2011 Sounds a bit quiet to me Pff, I've still got my hearing Not sure i'd keep it for long with a single exit Single ftw, It meant I could just nod my head while my passenger talked away Quote
RisingPower Posted June 10, 2011 Author Posted June 10, 2011 Single ftw, It meant I could just nod my head while my passenger talked away How's your hearing? Even this was... enough... from japex back to home Quote
Ian Posted June 10, 2011 Posted June 10, 2011 Fine I've always had selective hearing, now its just more selective Quote
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