bolarbag Posted April 24, 2007 Share Posted April 24, 2007 Thinking mechanically here and wondering why you dont see many people using screamer pipes? Is the main factors to reduce noise and dissipate heat away from the engine bay? Just seems like a very good way to increase response in a single turbo car, Does anyone have a diagram of where the screamer pipe would be directed or placed? Has there ever been an application where an exhaust and screamer pipe have been used in conjunction, i.e Single pipe, branched off into 2, one the screamer, the other taking the route of a normal exhaust with resonator box e.t.c? Just used search...ok am talking out my arse, seems quite a few people have done it, could someone show me a diagram of how it would be vented back into the exhaust? Link to comment Share on other sites More sharing options...
dibbleyuk Posted April 24, 2007 Share Posted April 24, 2007 I know someone with a screamer pipe on a heavily tuned evo its so loud and sounds horrible!! i would never have one near a car of mine after hearing his. Link to comment Share on other sites More sharing options...
bolarbag Posted April 24, 2007 Author Share Posted April 24, 2007 Its not really the sound I'm after, its response, GReddy 3 Row FMIC PHR Stage 2 DBB or maybe Stage 1 DBB turbo Kit 4" K&N Either GReddy Surge Tank or Veilside(Copy) Plenium - any other suggestions? Lighweight Pulleys Carbon Propshaft, Already have whats in my sig HKS 264's IN and EX Jun Valve Train Siemens 720's or 800's injectors Car should weigh just under 1300k when complete (Engine Rebuild with lighweight parts after I get her back on the road) Link to comment Share on other sites More sharing options...
Alex Posted April 24, 2007 Share Posted April 24, 2007 Screamer pipes are the default for all US built kits. But you won't notice much of a difference if you did merge the watgate back into the exhaust, if you size the exhaust correctly. Screamer pipes on must kits exit downward behind the subframe. Link to comment Share on other sites More sharing options...
bolarbag Posted April 24, 2007 Author Share Posted April 24, 2007 Ok I have a HKS hiper Titanium ordered...like this morning;) Its 102mm piping, but is it not the Downpipes that would be the significant factor in venting the wastegate back into the exhaust? Any pics of this done? Link to comment Share on other sites More sharing options...
Alex Posted April 24, 2007 Share Posted April 24, 2007 Ok I have a HKS hiper Titanium ordered...like this morning;) Its 102mm piping, but is it not the Downpipes that would be the significant factor in venting the wastegate back into the exhaust? Any pics of this done? Depends where you make the hole for the introduction of the wastegate gasses. But anyway, when I say exhaust I mean everything after the turbo's turbine.... Link to comment Share on other sites More sharing options...
bolarbag Posted April 24, 2007 Author Share Posted April 24, 2007 Yup I get ya...like your thinking, all this downpipe nonesense, they should just make a single pipe:D But what I'm thinking is your taking the screamer pipe out of the equation...so using the only other 2exits for the turbo, the wastegate and exhaust housing...what benefit is there to venting the wastegate back into the exhaust if its after the exhaust housing of the turbo? Link to comment Share on other sites More sharing options...
Alex Posted April 24, 2007 Share Posted April 24, 2007 You merge it back in the exhaust for emissions (if you had cats) and noise.... The screamer pipe is only loud/used under boost though, so it's not a huge issue. People could argue you'll lose spool with a merged exhaust, but if it only opens once you've reached the pressure you want to get to, how exactly is it going to do that? Link to comment Share on other sites More sharing options...
bolarbag Posted April 24, 2007 Author Share Posted April 24, 2007 been reading up on this today, cant really see the benefit of the screamer pipe, benefits would be minimal in comparison to a free flowing exhaust 4", The screamer pipe would have to be a lot smaller or you would get boost spike...fook that on a T67 with standard internals! Link to comment Share on other sites More sharing options...
SimonB Posted April 24, 2007 Share Posted April 24, 2007 The screamer pipe is only loud/used under boost though, so it's not a huge issue. It is if you ever want to do a track day at most tracks these days. Open wastegate would fail the drive by noise checks for sure. Link to comment Share on other sites More sharing options...
uk-rich Posted April 24, 2007 Share Posted April 24, 2007 It is if you ever want to do a track day at most tracks these days. Open wastegate would fail the drive by noise checks for sure. only if you went by the meter on full boost Link to comment Share on other sites More sharing options...
SimonB Posted April 24, 2007 Share Posted April 24, 2007 only if you went by the meter on full boost What else would you be doing on a track day? You don't go to tootle around! They have them on the pit straight normally, or out on another straight. Link to comment Share on other sites More sharing options...
uk-rich Posted April 24, 2007 Share Posted April 24, 2007 i was advised to ease off on the straight for this very reason Link to comment Share on other sites More sharing options...
Muffleman Posted April 24, 2007 Share Posted April 24, 2007 Unfortunately, track marshals aren't daft But personally, screamer pipe all the way Link to comment Share on other sites More sharing options...
Wez Posted April 24, 2007 Share Posted April 24, 2007 I will be routing mine back into the exhaust at some point, also fitting a quieter exhaust when it turns up, all this so I can track it more often Link to comment Share on other sites More sharing options...
Chris Wilson Posted April 24, 2007 Share Posted April 24, 2007 The kits use screamer pipes because they are MUCH cheaper to fabricate than a properly engineered vent back into the down pipe. The Americans are so easily led the makers only have to say they make a "cool noise" that they hungrily buy them and save the manufacturers thousands Sheep like the UK marketplace follows suit Link to comment Share on other sites More sharing options...
Ian C Posted April 25, 2007 Share Posted April 25, 2007 The kits use screamer pipes because they are MUCH cheaper to fabricate than a properly engineered vent back into the down pipe. The Americans are so easily led the makers only have to say they make a "cool noise" that they hungrily buy them and save the manufacturers thousands Sheep like the UK marketplace follows suit But it *is* a cool noise meeeehhhhhh -Ian Link to comment Share on other sites More sharing options...
Lebsteif Posted June 2, 2007 Share Posted June 2, 2007 i start to become deaf or i get used to the sound of the screamer pipe. I think the first one. I highly recommend people to vent it back into the downpipe, the sound is too damn loud :/ It's ok on short trips, but on long trips you get crazy! Link to comment Share on other sites More sharing options...
Recommended Posts
Please sign in to comment
You will be able to leave a comment after signing in
Sign In Now