emok z Posted December 2, 2009 Share Posted December 2, 2009 any body know some one who will custom make a twin turbo manifold or a company that makes them i seen one up for sale a wile back but could find the thread now that i want one thanx criz Quote Link to comment Share on other sites More sharing options...
Cheesecakepiebar Posted December 2, 2009 Share Posted December 2, 2009 Before everybody gets on you for ignoring forum rules, please use proper punctuation. The most important question is what engine do you want the manifolds for? Quote Link to comment Share on other sites More sharing options...
hoov100 Posted December 2, 2009 Share Posted December 2, 2009 TT on an L-series is worthless for anything other then a novelty. Quote Link to comment Share on other sites More sharing options...
Mikez31ss Posted December 2, 2009 Share Posted December 2, 2009 TT on an L-series is worthless for anything other then a novelty.Agreed but if the man wants one then...http://zclub.nicoclub.com/zerothread/464661 Quote Link to comment Share on other sites More sharing options...
blackice280zxt Posted December 2, 2009 Share Posted December 2, 2009 Agreed but if the man wants one then...http://zclub.nicoclub.com/zerothread/464661 haha I was going to post the same thing http://zclub.nicoclub.com/zerothread/464661 Quote Link to comment Share on other sites More sharing options...
Roggaman Posted December 9, 2009 Share Posted December 9, 2009 TT on an L-series is worthless for anything other then a novelty. So getting quicker respons is worthless!? I´ve gone from one turbo to twin on my L28, and though the respons was rather quick on my "single" installation, the twins where noticebly quicker! The best way to feed a turbo (on a 4-stroke engine) is with the exhaust from 3 cylinders with evenly spread ignition sequence (that is 240 degrees apart). You can achive that with (on a 6-cylinder) twin turbos or with one turbo with twin entries. Here´s some pics of my twinturbo-arrangement: http://speedfreak.nu/forums/gallery2.php?g2_itemId=38685 http://speedfreak.nu/forums/gallery2.php?g2_itemId=38678 Quote Link to comment Share on other sites More sharing options...
78nismoZ Posted December 9, 2009 Share Posted December 9, 2009 Roggaman that is beautiful, I thought I would be one of the only ones running the 280zx intake that slopes to the back...from what I have heard they flow the best of any of the z manifolds Quote Link to comment Share on other sites More sharing options...
Tony D Posted December 9, 2009 Share Posted December 9, 2009 "Quicker Response" as opposed to what? A misapplied single? There is no reason twins are more responsive that a properly sized single. The largest reason for twins in the past was compressor flow. To get comparable flow and lower spool, you had to have two smaller compressors with relatively large compressor sections. With the advances in wheel design, and materials advancements twins really are superflous. They have to be very well applied, and even then it's likely a wash when you consider potential failure points compared with a proper single. Really 'quicker response' is a theoretical argument, and then only really proven by using turbocharger tachometers, and sophisticated instrumentation... practical application will show there is no real discernable difference with the current generation of turbochargers. It really is more for novelty these days than any practical application argument. If a single can give me 17psi boost at 1700 rpms and 21psi by 2000, pull hard to a power peak at 5800rpms (around 350HP) you will be hard pressed to give me a practical example of twins beating that power under the curve. And that was old tech, without a hybrid compressor section. Were I to make that same build today, and actually port the head and use a cam the power point would be even higher. I have learned a lot since I built that one in 1986... using 1983 OEM technology. Today's turbo technology would improve on that response by a considerable margin. Quote Link to comment Share on other sites More sharing options...
big-phil Posted December 9, 2009 Share Posted December 9, 2009 If he REALLY wants a TT, and has $$$$$ to spend. I have a TT manifold Quote Link to comment Share on other sites More sharing options...
BluDestiny Posted December 9, 2009 Share Posted December 9, 2009 I saw one selling on zcar. The thing was from Japan, a notable manufacturer. The guy was selling it for $1200 Quote Link to comment Share on other sites More sharing options...
turboHLS30 Posted December 9, 2009 Share Posted December 9, 2009 If he REALLY wants a TT, and has $$$$$ to spend. I have a TT manifold Why isn't there a wastegate flange???? Quote Link to comment Share on other sites More sharing options...
big-phil Posted December 9, 2009 Share Posted December 9, 2009 Why isn't there a wastegate flange???? setup for internal WG turbos I guess? I bought it but never used it. Quote Link to comment Share on other sites More sharing options...
MAG58 Posted December 9, 2009 Share Posted December 9, 2009 "Quicker Response" as opposed to what? A misapplied single? There is no reason twins are more responsive that a properly sized single. The largest reason for twins in the past was compressor flow. To get comparable flow and lower spool, you had to have two smaller compressors with relatively large compressor sections. With the advances in wheel design, and materials advancements twins really are superflous. They have to be very well applied, and even then it's likely a wash when you consider potential failure points compared with a proper single. Really 'quicker response' is a theoretical argument, and then only really proven by using turbocharger tachometers, and sophisticated instrumentation... practical application will show there is no real discernable difference with the current generation of turbochargers. It really is more for novelty these days than any practical application argument. If a single can give me 17psi boost at 1700 rpms and 21psi by 2000, pull hard to a power peak at 5800rpms (around 350HP) you will be hard pressed to give me a practical example of twins beating that power under the curve. And that was old tech, without a hybrid compressor section. Were I to make that same build today, and actually port the head and use a cam the power point would be even higher. I have learned a lot since I built that one in 1986... using 1983 OEM technology. Today's turbo technology would improve on that response by a considerable margin. Curses. TonyD again with the quick right answer. Quick Q, I've always understood it that, relative to the size of compressors used in the engines at hand (I have no idea how this would relate to industrial size compressors or the larger industrial turbos) that a larger turbo is usually more efficient than a smaller turbo. I've also been of the belief that the idea that smaller twins are better than singles is falty as even though it takes less energy to get a turbo spooled if it's smaller, it's also only receiving half the energy of a single larger turbo and that even though the pieces/parts are lighter the total sum of rotating mass between the two smaller turbos is actually not all that different from the one larger turbo, perhaps even higher. Is there any validity to this? Quote Link to comment Share on other sites More sharing options...
aliphian Posted December 9, 2009 Share Posted December 9, 2009 It does seem like a waste of effort but if you really NEED two turbochargers, there are your options. May we ask why you have decided on twin turbos as opposed to single turbo? Quote Link to comment Share on other sites More sharing options...
24OZ Posted December 9, 2009 Share Posted December 9, 2009 I have gone for twin turbo set up simply for the nostalgic point of view and for the wow factor, and it was a little more challenging then fitting a single turbo. I know it may not be the most efficient but I like it. Quote Link to comment Share on other sites More sharing options...
big-phil Posted December 9, 2009 Share Posted December 9, 2009 I have gone for twin turbo set up simply for the nostalgic point of view and for the wow factor, and it was a little more challenging then fitting a single turbo. I know it may not be the most efficient but I like it. thats why I was thinking of doing it, and still might? Quote Link to comment Share on other sites More sharing options...
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