Tony D Posted September 8, 2004 Share Posted September 8, 2004 "Lag Inherent"? Maybe for stuff made during the 60's from OEM, but not today. Most monster turbos make 2-3psi already at 2K rpm. JeffP's does, and he's at 500HP+ now. Lag comes primarily from improper driving technique, and unrealistic driving expectations from a small engine. For the added $$$ and complexity of a second turbo, you could install modern engien controls and turbocharging components and experience FAR better response. At FAR less cost. Quote Link to comment Share on other sites More sharing options...
DAW Posted September 8, 2004 Share Posted September 8, 2004 OK, this idea was mainly about driveability and versatility in a mainly street-driven car and not a 500+ hp application. Like I said, it would be of no value in that application. It's more in line with Volvo low-pressure turbo concepts and power/efficiency technology and it could be flawed there as well. Just an idea. I haven't seen instantaneous throttle response on the turbo'd cars I've had, more like ho-hum, followed by a huge rush of power and I've attributed this to the low static c.r. Let's say 3.5lbs @1400 rpm and I'm talking about a mini-turbocharger acquired from some non-U.S. market econobox where they try to squeeze h.p. out of small displacement engines to avoid taxation based on displacement. You're probably right but unless you have a variable-pitch impeller and variable dia. tubing and intercooler volume, I don't see how a single turbo capable of producing 500hp is going to provide instant off-idle response with a 7.5:1 c.r. without creating a scene at a traffic light. DAW Quote Link to comment Share on other sites More sharing options...
spiff Posted September 19, 2013 Share Posted September 19, 2013 I'm also having trouble with my manifold, I'm pretty sure it's the manifold because the exhaust leak gets smaller as the engine warms up and thus something is expanding making the leak smaller. A leaking gasket would leak the same all the time wouldn't it? Anyways, I can't see under my manifold but I took some pictures with flash, I read here about some flexible hose? A v-clamp? What am I missing? When the manifold is cold I can twist and move the center pipe in/out sligtly.... Any good ideas for a solution here? Quote Link to comment Share on other sites More sharing options...
Xnke Posted September 20, 2013 Share Posted September 20, 2013 You're missing the bellows...that's just a solid pipe slid in place, as a slip joint. It'll always leak like that until it heats up. Either find the proper stainless bellows and clamps, or figure out a good way to seal the slip joint. Quote Link to comment Share on other sites More sharing options...
Tony D Posted September 20, 2013 Share Posted September 20, 2013 Check JeffP's post--the Mercedes 280 Diesel uses almost an identically sized bellows (goes over your pipe, that us the flow smoothing inner liner to the bellows) and clamps. The Nissan Stuff us NLA. I have some SS Slip Fit parts that were custom made, they don't leak... It was prototyped before Jeff found the Mercedes part worked. Quote Link to comment Share on other sites More sharing options...
spiff Posted September 20, 2013 Share Posted September 20, 2013 Thanks for the info, you wouldn't happen to know the year or if it's an E class or a C-class mercedes or something as I can't find anything searching this forum except for people wanting to turbodiesel their Z's.... :/ Quote Link to comment Share on other sites More sharing options...
Xnke Posted September 21, 2013 Share Posted September 21, 2013 It's a Mercedes 280D, old Mercedes. Quote Link to comment Share on other sites More sharing options...
Tony D Posted September 21, 2013 Share Posted September 21, 2013 Not E or C... What was available in1983? Were there E's & C's then or were there just 280D's? SL's were there... Maybe an S... I believe it's on Jeff's website. Going to a Mercedes shop to look at microfiche and say "that looks close!" Or maybe a junkyard? That's what Jeff did to figure out what fit... Then he went to a dealer with the VIN information of the car in the Junkyard and ordered a few new ones along with their clamps. From what I recall it was an "exact fit" after a slight stretch of the bellows for axial length adjustment...which may be the case on the MB installation as well. This isn't rocket science here, this is basic Junkyard 101 engineering, take a likely prospect and see if it fits or you can make it fit. Beats the alternative of an NC lathe machined part that will have to be copied from a parti don't have access to measure right now! Quote Link to comment Share on other sites More sharing options...
spiff Posted September 21, 2013 Share Posted September 21, 2013 That old huh... Junkyards is a no go as there are none around here or anyplace nearby. Are you sure it's a 280 and not a 300? I have googled myself crazy but can't find anything regarding bellows on a 280, but searching for the 300TD I found this That bellow on the downpipe looks to be the thing im looking after doesn't it? Gonna call the mercedes dealer after the weekend and check if they are still produced. Quote Link to comment Share on other sites More sharing options...
Tony D Posted September 22, 2013 Share Posted September 22, 2013 NO! You, my son, have missed the forest through the trees! Not the down pipe, but those two little clamp things to the RIGHT of the huge down pipe accordion bellows...you know, the ones in EXACTLY the same place as on your manifold? THOSE bellows and clamps are the ones JeffP used. They fit and as of last year were still available from MB. Quote Link to comment Share on other sites More sharing options...
Tony D Posted September 22, 2013 Share Posted September 22, 2013 You are going to read the above...look back at the photo you posted and have a Homer! "D'OH!" Before our very eyes....LOL Quote Link to comment Share on other sites More sharing options...
spiff Posted September 22, 2013 Share Posted September 22, 2013 Yeah, I thought about it but thought to myself naaah, thats to short..... Okay, I'll buy the smaller bellow then I need two to complete my manifold right? I don't think the front one is leaking but if I need to remove the manifold(s) to change it then I might as well change both. Quote Link to comment Share on other sites More sharing options...
Tony D Posted September 22, 2013 Share Posted September 22, 2013 Exactamundo! Quote Link to comment Share on other sites More sharing options...
spiff Posted September 23, 2013 Share Posted September 23, 2013 If anyone needs to order these the part number is 1171420159 for the flexible pipe and 6039950565 for the clamp. I have ordere 2 pipes and 4 clamps, should have them by friday so we'll see how it goes Quote Link to comment Share on other sites More sharing options...
SleeperZ Posted September 23, 2013 Share Posted September 23, 2013 It's a Mercedes 280D, old Mercedes. You mean 240D, right? I have a 300D turbodiesel in my 240D, and it has such an exhaust link. I did not know the 240Ds had that flexible section too - I'm sure the turbo diesel part is different from the naturally aspirated 240D though. Quote Link to comment Share on other sites More sharing options...
Tony D Posted September 24, 2013 Share Posted September 24, 2013 I've no clue, it's Priddy's manifold! Quote Link to comment Share on other sites More sharing options...
Xnke Posted September 25, 2013 Share Posted September 25, 2013 Might be what I ment. I've seen them on a bunch of the mercedes turbodiesels in the parts yard, just never thought to pull them. Quote Link to comment Share on other sites More sharing options...
spiff Posted October 10, 2013 Share Posted October 10, 2013 Took a little while, but exhaust leak is now under control Quote Link to comment Share on other sites More sharing options...
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