harbering1

It was running at 1.4 bar till 7000 rpm
sometimes it peaked in the mid range 1.5 a 1.6 bar

But the guys at turbodynamics say it is no Warrenty

In our opinion the failure of the turbocharger was caused by overspeed and/or overboost of the turbocharger. This has caused a premature blade failure on the compressor wheel assembly.

The Never told me what the max boost is
But when i told them what boost i was running the say
Max boost of the md320 is 1.4bar



[Edited by harbering1 - 9/18/2003 6:04:37 PM]

AlanG

Not the clearest of pictures, but looking at it, it would appear that the blade which has gone AWOL has hit the compressor housing, same with the "outward bent" blade.
The blade that has went AWOL also looks (but a better picture should tell) like it has happened due to something being ingested into the intake side.

I see it's a TD05 cover. Is it a TD core? or a VF core? This may indictae TD's comment on max boost pressure, though this may be due to compressor wheel fitted also.

Since it's not covered by warranty, can you take off the compressor housing and have a look inside to see what's went on?

On mine, i had several blades bent outward, but not broken. Odd thing though is the blades where they were bent, hadn't hit the compressor cover.

David Wallis had an MD321 i believe. Perhaps he may comment on differences between 320 and 321 if he knows?

Alan

David_Wallis

MD321 was a bigger garret wheel in it.. more like the 18g wheel..

bit laggier, but flowed more.

md320 is td05 iirc

David

[Edited by David_Wallis - 9/18/2003 6:48:32 PM]

David_Wallis

maybe it was got by the same thing that attacked the wall?

tweenierob

LMFAO!!!!!

R.

AlanG

So..the 320 is a TD05 but with a different compressor wheel and machined housing to accomodate?


Alan

The Fixer

David how did your MD321 perform (it is the 18g wheel )

best operating pressure?

Max pressure?

I don't want to break mine......

Andy.F

Seen this on a few occassions now where a non Mitsubishi compressor wheel has been fitted to the high speed TD05 turbine, resulting in an overspeed failure.

harbering1

Stage1

MD320

Brief Specifications: -

MD320 Compressor cover modified to 61mm straight inlet, high flow TB34 ‘7 Blade’ compressor wheel, C.N.C. re-profiled compressor housing, 360 degree thrust bearing, modified bearing housing, left hand thread shaft and wheel. Uprated actuator – optional. Recommended maximum boost level is 18-20 P.S.I. 350-380 BHP is possible from this unit with correct fuelling and engine management modifications.