TrophyJem Posted May 10, 2016 Share Posted May 10, 2016 Since swapping my Pinto engine for a Duratec the other year, I really miss the deep rumble that the Pinto used to give at tick over and low revs. The Duratec just sounds, well tinny. Its all good on full blat (in fact its a bit of a mental sound), but its very disjointing low down. So it got me wondering what actually makes an exhaust note sound deeper? Quote Link to comment Share on other sites More sharing options...
Andrew Posted May 10, 2016 Share Posted May 10, 2016 It's all about gender.. a Pinto's a manly beast, and Duratecs are a bit girlie. ... so I was told. 4 Quote Link to comment Share on other sites More sharing options...
CraigHew Posted May 10, 2016 Share Posted May 10, 2016 The exhaust design and componenets can play a huge part in the sound Quote Link to comment Share on other sites More sharing options...
Olliebeak Posted May 10, 2016 Share Posted May 10, 2016 It happens when you awake the Pintosaurus from his slumber. 1 Quote Link to comment Share on other sites More sharing options...
TAFKARM Posted May 10, 2016 Share Posted May 10, 2016 Jem, I've got a 2.5 inch diameter exhaust manifold (4 into 1) and silencer for sale soon that should sound quite meaty if youre interested... 1 Quote Link to comment Share on other sites More sharing options...
Dave Eastwood (Gadgetman) - Club Chairman Posted May 10, 2016 Share Posted May 10, 2016 Equally cam profiles and cylinder head design play a part; four valve per cylinder engines with lots of valve overlap, always seem to have quite a distinctive sound under load, at speed. Quote Link to comment Share on other sites More sharing options...
TrophyJem Posted May 10, 2016 Author Share Posted May 10, 2016 Jem, I've got a 2.5 inch diameter exhaust manifold (4 into 1) and silencer for sale soon that should sound quite meaty if youre interested... Thanks for the offer, but I already have a 4 into 2 into 1 manifold of a decent size and the silencer is my old pinto one (maybe the silencer is a bit small). The power output is great from the duratec. 200bhp on the rollers, so that's all good. It's just the sound I miss. I've even thought about putting it back in and converting it to efi, but that would just be bonkers. The duratec is so much more drivable, quicker and dare I say more economical. Quote Link to comment Share on other sites More sharing options...
Barry Ashcroft Posted May 10, 2016 Share Posted May 10, 2016 Simple, Cubic inches ;-) Quote Link to comment Share on other sites More sharing options...
Greenstreak-Andy D Posted May 10, 2016 Share Posted May 10, 2016 Simples.... 5 Quote Link to comment Share on other sites More sharing options...
Geoffrey Carter (Buttercup) Posted May 10, 2016 Share Posted May 10, 2016 I found that so incredibly funny. cannot stop laughing for some reason. Quote Link to comment Share on other sites More sharing options...
DE04* Posted May 12, 2016 Share Posted May 12, 2016 LOL brilliant. Quote Link to comment Share on other sites More sharing options...
TableLeg Posted May 12, 2016 Share Posted May 12, 2016 I found that so incredibly funny. cannot stop laughing for some reason. Me too, I've got tears in my eyes from the drive by ending.... Quote Link to comment Share on other sites More sharing options...
stephenh Posted May 12, 2016 Share Posted May 12, 2016 Excellent! Quote Link to comment Share on other sites More sharing options...
BenD Posted May 12, 2016 Share Posted May 12, 2016 lol the ending is the best Quote Link to comment Share on other sites More sharing options...
tisme Posted May 12, 2016 Share Posted May 12, 2016 Haven't laughed so much in ages :d When he drove off though, it sounded just like Rosebergs Mercedes As for the OP question though - Dave is right - on a modern 16v engine a lot will depend on cam/valve overlap, unburnt fuel etc - does the Duratec system have a CAT - if so I'd try it without (or even the silencer) to see if there's any inherent "growl" in there. Changing to larger diameter pipes and or silencer may not alter things that much? Quote Link to comment Share on other sites More sharing options...
Recommended Posts
Join the conversation
You can post now and register later. If you have an account, sign in now to post with your account.