kb351 Donating Members 80 Member For: 17y 2m 22d Gender: Male Location: Perth Posted 15/08/16 03:08 AM Share Posted 15/08/16 03:08 AM Hi all, I see that Mamba show that their turbine housings are already ported with 34mm wastegate hole. Would this just be simple swap out for a cracked OEM housing and remove the need for porting/wastegate flapper mods? Then just need to buy a suitable (12lb) actuator. If so it seems a pretty low cost option compared to buying an OEM housing and getting it modded, or even using an existing std housing that would require modding. Any one have experience with these housings? did you need to get extra housing mods done or just bolt on an away you go? Link to comment Share on other sites More sharing options...
molch Donating Members 174 Member For: 18y 4m 22d Gender: Male Location: Central Coast Posted 03/09/16 05:36 AM Share Posted 03/09/16 05:36 AM It will depend on the size of the turbo you are bolting onto it. I have one bolted to a t04z compressor (68mm) and its too big a turbo. I had it ported out to 38mm but still having some issues. I might be selling my mamba housing soon if you want to safe a couple of dollars and pickup one that's had some porting work done to it. 1 Link to comment Share on other sites More sharing options...
kb351 Donating Members 80 Member For: 17y 2m 22d Gender: Male Location: Perth Posted 06/09/16 08:17 AM Author Share Posted 06/09/16 08:17 AM (edited) Hey, thanks for the reply molch! So many views so few replies... I'm looking at a gt3582 and chasing about 360-380RWKW. Thanks for the offer but in between me first posting and now, the Mamba housing went on sale so I picked one up for $238 delivered. I'm not too sure about quality but will give feedback once I get moving on doing something. Edited 06/09/16 08:17 AM by kb351 Link to comment Share on other sites More sharing options...
molch Donating Members 174 Member For: 18y 4m 22d Gender: Male Location: Central Coast Posted 06/09/16 08:24 AM Share Posted 06/09/16 08:24 AM Yeah man wish I got in earlier. Not many have experience with the Mamba housing and now Mamba have dropped price conveniently when I raised this issue to them! Maybe it's to get more out I the market place so we can continue to test their products. I guess R&D and customer service is limited when you sell at the prices they do. I I do like the turbo itself. Comes on boost and pulls really hard. What exhaust and intake do you have. I think that will impact any overboosting issues. Link to comment Share on other sites More sharing options...
BAXRTUTE Gold Donating Members 2,639 Member For: 8y 8m 5d Posted 06/09/16 08:46 AM Share Posted 06/09/16 08:46 AM If your only chasing 350-400rw id go a gtx3576... Banging turbo that spools hard. Not much can beat it in that power range if anything at all. Link to comment Share on other sites More sharing options...
kb351 Donating Members 80 Member For: 17y 2m 22d Gender: Male Location: Perth Posted 06/09/16 09:12 AM Author Share Posted 06/09/16 09:12 AM I only have std exhaust and dump at the moment with Venom cat pipe - only change I intend on getting is venom twin 2.5" My concern is that the swing valve appears to slightly catch on the lip of the port as it starts to close when operating by hand. Only just touches and doesn't seem to do it consistently - was that part of your issue? (providing that makes sense). The internal dimensions are slightly smaller and I'm not sure if that would help with low down response or add to boost control issues - happy to hear any feedback you have. Link to comment Share on other sites More sharing options...
el-dub801 Member 44 Member For: 12y 8m 15d Gender: Male Location: Wollongong Posted 14/07/19 11:45 AM Share Posted 14/07/19 11:45 AM Re-opening an old thread, I know... I just bought a gt35r rear housing from Mamba to replace the cracked Garrett housing I have at the moment. Mamba claim a direct replacement turbine housing to bolt to the original core (but with mamba actuator) The problem is, theres a significant difference in housing sizes. The Mamba housing claims to be 1.05, but I suggest they have it wrong - the housing has no cast markings on it at all apart from a “14” on the inside of the exhaust manifold flange, being “14cm2”. Putting the two side by side and the garrett looks fatter and when measured is about 5mm wider all way around. Theres also a considerable amount of extra casting around the exhaust flange, with some other differences to the garrett, such as a relatively straight exit from the wheel to the flange (opposed to a taper on the Garrett), some nasty square edges around the machining for the wastegate port and a distinctly longer boss where the core bolts to (making the core and compressor housing forward more) Before I machine this housing and then have it coated, has anyone else used one of these housings and had any issues? I would suggest by just looking at the housing size that its been mistakenly branded and is alot smaller a/r than claimed, so naturally I dont really want to use it if its going to cause unnecessary back pressure. Looking forward to see what you guys have experienced with these Mamba housings. Here are the two side by side... Link to comment Share on other sites More sharing options...
BeerTurbo Donating Members 241 Member For: 6y 7m 14d Posted 10/08/19 10:39 AM Share Posted 10/08/19 10:39 AM howd you go with this, im in a similar boat currently. Link to comment Share on other sites More sharing options...
JETURBO ...JD TUNING ADELAIDE... Gold Donating Members 23,708 Member For: 16y 6m 22d Gender: Male Location: Adelaide Posted 11/08/19 03:04 AM Share Posted 11/08/19 03:04 AM Mamba housings belong in the bin it’s a shame because they’re cheap but the fact is they’re smaller than 1.05 this creates issues when coming to getting the port size and shape correct to control boost they are prone to cracking also I’ll never touch one on a customer car nor will I recommend them Link to comment Share on other sites More sharing options...
Draino Donating Members 69 Member For: 5y 3m 27d Gender: Male Location: NT Posted 26/08/19 02:11 AM Share Posted 26/08/19 02:11 AM ^^ There goes that idea. Usual story, if it sounds too good..... Link to comment Share on other sites More sharing options...
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