mark chandler
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| posted on 17/10/16 at 09:24 PM |
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Budget turbo's
My Aerocharger has bitten the dust, bearing failure and rediculously high charges to inspect and overhaul has consigned it to the bin 
So I have been looking on eBay, once I had priced up an unknown turbo, added the fittings and flanges new generic turbos from China started to look
good so I have broken the piggy bank and got one of these
MAMBA-GTX-Billet-Turbocharger-2-2-TD04L-15T-w-6cm-T25
I had a good Google and these seem to have good reviews, so will post up how it goes.
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chittyshittybangbang
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| posted on 17/10/16 at 09:51 PM |
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I bought a cheap new turbo for a diesel I had and only lasted 13 months, it was about £130. Hope you have better luck.
I ended up replacing the turbo bearings myself which was about £30 and had no more problems
After.
Might be worth seeing if you can get a repair kit even to repair original as a spare?
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mark chandler
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| posted on 17/10/16 at 10:04 PM |
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They wanted $150 to open the turbo, $850 to replace the bearings and $150 to ship it back, although if the housing was scuffed add another few $$$
It cost £250 second hand 9 years ago so has had a good run, I tried to disassemble and cracked the housing so now an expensive paperweight.
This new one will catch import tax @ 20% so it keeps adding up, if the blade engine goes bang then it should be a good fit for a sigma engine or
similar if I go CEC one day.
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TheHighlander123
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| posted on 18/10/16 at 07:37 AM |
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I ran a mamba on an Impreza many years ago, made 398bhp with it, had it on the car for 2 years of hard driving/track days/ 1/4 mile sprints.
Was running 1.78 bar with no issues, no surging or anything like that, also ran anti lag with it aswell.
When I sold the car the lad smashed it but I believe the turbo would still be going today 
Westfield SEIW 1700 Forged crossflow, twin 40s etc etc etc - Now about to do a ZX9R
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nick205
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| posted on 18/10/16 at 08:15 AM |
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My local VAG specialists (ex Audi technicians) recommend rebuilding OEM turbos with genuine repair kits. Yes, it would mean more money for them in
terms of work, but they state quite categorically that you'll get OEM performance back and the longevity of service from the overhauled turbo.
I've not had cause to rebuild (or replace) a turbo to date, but I do suspect I'd go down this route if it came to it.
On the other hand, best of luck with your choice and I do hope it works for you.
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coozer
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| posted on 18/10/16 at 03:27 PM |
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I've bought a cheapo turbo off the bay with plain bearings.. Been wondering if I can dismantle it a ND pit some rollers in to upgrade it?
1972 V8 Jago
1980 Z750
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coozer
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| posted on 18/10/16 at 03:28 PM |
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Auto correct is having a laugh there......
1972 V8 Jago
1980 Z750
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mark chandler
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| posted on 18/10/16 at 09:03 PM |
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I expect you can purchase a roller bearing cartridge, you need ceramic bearings with a small oil flow to get the benefit, full oil flow is just the
bearings pushing oil around so okay for a lorry, ceramic can manage a mist of oil. Plain bearings are actually a pretty good solution as the shaft has
very little rolling resistance.
I did google ceramic bearing suppliers and had some options for my aerocharger before I broke it.
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mark chandler
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| posted on 27/10/16 at 08:25 AM |
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Change of plan, been having a good look around so have cancelled the Mamba turbo and going holset
http://www.compressorracing.com/our-turbos.html
This place does a cracking deal on these, now looking at a HE200WG which comes in at around £450 with no import duties and known high quality
I will have to make up a custom exhaust flange, as a bonus oil cooled only so no need to muck about with water.
Description
The HE200WG series is the latest naming/spec of the much sought after and rare 32lb/min capable HE211W and 38lb/min HE221W turbos, and what we have
here is the 32lb/min (So up to 320bhp) version, but unlike every other HE221W we've seen, it's got a MFS billet compressor wheel,
anti-surge compressor, and a VERY nice turbine housing design too, which while be can't be sure, looks/feels like a modern cast steel housing
rather than typical cast iron like on 99% of turbos.
Map Width Enhancement) ported anti-surge inlet and 2in (ID) v-band outlet flange.
Lightweight high flow billet allow MFS Holset 6 blade compressor wheel with 41mm inducer proven capable of 32lb/min flow and 40psi+ boost.
Oil cooled core with 360deg thrust bearing and heavy duty shaft.
47mm 11 blade quick response turbine wheel with 41mm exducer.
Super quick spool 4cm turbine housing with integral wastegate (actuator and bracket included), T3 (almost, see pics!) inlet flange and 4bolt outlet
flange
Incredible spec, amazing looking, sounding, performing, and very rare turbo at an unbeatable price, ideal as single or twin turbos.
Should be just the job
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mark chandler
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| posted on 2/11/16 at 10:57 PM |
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Turned up today, looks the mutts nuts, £415 to the door.
Vastly better than some of the old second hand stuff I have played around with, very well machined.
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CosKev3
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| posted on 3/11/16 at 10:35 AM |
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Sounds good
Currently building up the parts to turbo charge my R1 engine, gone for a Gt2556 turbo
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djtom
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| posted on 3/11/16 at 11:19 AM |
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Hi Mark - isn't a 4cm turbine housing a bit small? Even with your tiny hairdryer engine, that'll be spooling at idle rpm! Throttle
response will be impressive, although I'll be interested to see if it gets choked at high rpm with such a small hot side.
I agree with your thoughts on quality - i picked up a Holset HX27W a couple of years ago for a bargain. One of the highest quality turbos I've
seen, but it wasn't going to produce any more power than my TD04HL 15G, so I sold it for a vast profit :-)
When you get it running again, let me know. I fancy another trackday, and I'll be back in the UK from Feb onwards...
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dmrider_10
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| posted on 3/11/16 at 12:51 PM |
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Hi mate I have no advice for you but I was intrigued by your setup, do you have a build thread? Standard blade engine? Which model?
Thanks
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