jgkurz Posted May 26, 2006 Share Posted May 26, 2006 Hey folks, I don't want to hijack this thread but since we're talking about Holset turbo's I thought it might be appropriate. I have a project Z that uses an older Holset H3B turbo. I know this is an extremely large turbo but just go with me on this, details later. I'm unable to find ANY info on the turbo. I can't swear the model # is correct but I'm reasonably sure. Supposedly the turbo came off a Cummings 300HP 855ci diesel. I've done the typical Google search but nothing relevant comes up. Any ideas where I can get some real infomation on this turbo? Thanks! John Quote Link to comment Share on other sites More sharing options...
Guest 280ZForce Posted May 26, 2006 Share Posted May 26, 2006 so far i've found on the holset h3b in 2 min of googling... Holset H3B off of a Cummins 13-14 liter diesel. The compressor inducer is 2.75 inches, turbine inlet is about 4x3 inches, compressor inlet is 5 inches, turbine outlet is 5 inches. if it's the h3b off a cummings diesel, prolly part#... 3532818 here is a link on a bunch of H3B part #s... http://www.turbomaster.info/eng/catalogs/model.php?base=holset&pagina=H3B Quote Link to comment Share on other sites More sharing options...
nienberg.11 Posted May 26, 2006 Share Posted May 26, 2006 so whats the purpose of the HUGE inlet when the compressor wheel is soo tiny? I mean I think my 60-1 wheel is bigger then that... My turbo's bigger than your turbo! Quote Link to comment Share on other sites More sharing options...
Guest 280ZForce Posted May 26, 2006 Share Posted May 26, 2006 My turbo's bigger than your turbo! and my turbos are bigger than yours... Quote Link to comment Share on other sites More sharing options...
nienberg.11 Posted May 26, 2006 Share Posted May 26, 2006 and my turbos are bigger than yours... LOL, owned. Quote Link to comment Share on other sites More sharing options...
dosquattro Posted May 26, 2006 Author Share Posted May 26, 2006 I think they use home depot couplers on those. Quote Link to comment Share on other sites More sharing options...
jgkurz Posted May 26, 2006 Share Posted May 26, 2006 so far i've found on the holset h3b in 2 min of googling... Holset H3B off of a Cummins 13-14 liter diesel. The compressor inducer is 2.75 inches' date=' turbine inlet is about 4x3 inches, compressor inlet is 5 inches, turbine outlet is 5 inches. if it's the h3b off a cummings diesel, prolly part#... 3532818 here is a link on a bunch of H3B part #s... http://www.turbomaster.info/eng/catalogs/model.php?base=holset&pagina=H3B 280ZForce, Thanks for info on the H3B. I have seen see the thread from the Yahoo group but the turbomaster link is new. I wonder if Holset ever released a compressor map for these turbo's? Quote Link to comment Share on other sites More sharing options...
Guest 280ZForce Posted May 26, 2006 Share Posted May 26, 2006 280ZForce, Thanks for info on the H3B. I have seen see the thread from the Yahoo group but the turbomaster link is new. I wonder if Holset ever released a compressor map for these turbo's? good luck really finding a compressor map for any holset turbo. they are out there, but hard to find. Quote Link to comment Share on other sites More sharing options...
alexideways Posted May 27, 2006 Share Posted May 27, 2006 To nienberg.11 and 280zforce where the hell those turbos come from, can you imagine the amount of air these things can move, you could probabbly blow a sailed ship all the way to australia withaout leaving America with these. Quote Link to comment Share on other sites More sharing options...
Guest 73Turbo240z Posted May 27, 2006 Share Posted May 27, 2006 The purpose of the large openings is that there is side intake slots on the HY35W, and i believe the HX's too... it's not just closed off... thus the size of the inlet ring. Quote Link to comment Share on other sites More sharing options...
2+2 turrrbo Posted May 27, 2006 Share Posted May 27, 2006 i thought it was an anti-surge housing??? anyway , the h1c does look smaller than the hy35 but atleast the turbine housing a/r looks huge compared to the one on my hy35w Quote Link to comment Share on other sites More sharing options...
Cody 82 ZXT Posted May 27, 2006 Share Posted May 27, 2006 i thought it was an anti-surge housing??? That's correct Quote Link to comment Share on other sites More sharing options...
dosquattro Posted May 28, 2006 Author Share Posted May 28, 2006 I get my turbo tuesday and will find out for sure if it's a H1C or something else. Quote Link to comment Share on other sites More sharing options...
dosquattro Posted May 31, 2006 Author Share Posted May 31, 2006 Turbo came today and it's a H1C. Bigger then a 60/63 that I had awhile ago. The compressor housing is big as my hand spread out. I'd liek to see this compared to a HY35 to see how big those are. Quote Link to comment Share on other sites More sharing options...
Guest 280ZForce Posted May 31, 2006 Share Posted May 31, 2006 Turbo came today and it's a H1C. Bigger then a 60/63 that I had awhile ago. The compressor housing is big as my hand spread out. I'd liek to see this compared to a HY35 to see how big those are. Worthless w/out pics! gotta see that. i'll try to get a shot of mine Quote Link to comment Share on other sites More sharing options...
mtcookson Posted May 31, 2006 Share Posted May 31, 2006 and you dont need to build a manifold for 3 cylinders per section. You don't have to... but you will get better spooling if you design a manifold for the turbo. For the split housing the best would be to evenly seperate the exhaust pulses between the two sections. A pulsed manifold spools a turbo much better than a constant pressure manifold does. (i.e. equal length) Its definitely harder to do but if you're going for the full potential that's the best way to go. Quote Link to comment Share on other sites More sharing options...
nienberg.11 Posted May 31, 2006 Share Posted May 31, 2006 Mtcookson, I just realized that your driveway must be incredibly cramped Quote Link to comment Share on other sites More sharing options...
mtcookson Posted June 2, 2006 Share Posted June 2, 2006 Luckily the family has a driveway, large "garage" across the street, and a field behind the house.... I still need to get rid of a few though. Quote Link to comment Share on other sites More sharing options...
Guest RyaN95i4 Posted June 26, 2006 Share Posted June 26, 2006 Hey Guys, I know this is an older thread, but I rejoined Hybridz after "refinding" the site during a Holset google search. I was a member a long time ago, but I guess was pruned due to non activity for such a long time. Anyways, on holsets -- if you want any of their compressor maps, just email Holset. Their tech staff is very friendly and very quick to respond with maps, measurements, etc. On another forum, we have received every map we have asked for so far. Also, on the holset inlets -- they are so large because they are anti-surge housings, yes, but they also include what they call "map width enhancement grooves." These supposedly allow air to be pulled directly to the second set of blades on the compressor wheel. They say this increases efficiency (widens the compressor map, hence the name). It is said that a holset compressor in this type of housing will flow as much as 10% more air than a same sized garret wheel. How much that holds true, who knows, but just thought I would share. Theres a lot more holset info on some of the DSM boards, and even some of the honda guys are getting onboard. 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.