What causes a turbo to be blown-up?

[bebolagalas T]

Well, I have finally done my BOT and runned in. Now enjoying my ride... Touch wood, no coughing and no sneezing on my engine... Everything is fine boosting at 0.6-0.7 bars daily drive.

well, I've consulted one of my friend on the cooling system on the turbine.. One of my friend and I had an argument over a TD04L. Should it be oil cooled only or water and oil cooled... I insisted on water and oil cooled. And he keep saying that oil cool only is enough... and nobody oil + water cooled...

Well, I came from a mechanical engineering background and till now, I've been dealing with alot of machine built to produce heat... Well, I understand his message that says TD04L can be oil cooled only... But I couldn;t accept that he said no body water and oil cooled a TD04L and TD05... (Mitsu's OEM turbine)

If there is no purpose of having a double cooling system on a turbine, why the hell does Mitsu uses uncountable amount of effort and money in designing and producing a twin chamber cooling system.. I believe they don;t do things for no reason... And I also know that there are lotsa BOTs out there that only oil cooled the turbine... Can use I know can use.... But when say nobody uses water and oil cooled, I mean... i couldn;t accept lar...

however, this topic was brought to be compared with some of the garrett turbine that using oil cooled only.... Well, for me... It all depends on the initial designed cooling method... Well, Garrett using Oil cooled only because it's being designed to do this... So, the oil travelling chamber for cooling would be different from a water + oil cooled chambers... So, to my opinion, it's all about the design... Well, I know it's going to be a never ending argument if we continues... I ended the conversation with "nevermind lar... it's OK"

had a friend whom damaged his TD04L at 1 bar. Told me overheated and shaft bengkok. Send to Turbo Tong to repair cost alot, and finally got himself a TD04HL...

Met up with my cousin last week... Driving an Airtrek Turbo... Just upgraded to TD05. Wanted to sell his TD04L(Stock turbine) in very good condition. not even oil leaks and I asked him about his boost before upgraded to TD05. And I was suprised that he told me it's been 1.2 bars for 1 year + without giving any problem...

So... it immediately reminded me about the argument....
What do U think..?

bro if u study heat transfer then u now why sometime we need double cooling and some times just oil cooled..very simple..Bigger the area- heat can be transfer easily and also removed easily- concept 'extended surface'...smaller turbo usually need oil and water due to fact i stated above. engineer always calculated everything..position of the turbo also need to be consider..

garrett turbo- 'R' series which is ball bearing need water cooling system due to 'ballbearing' it self- to prevent it easily broken so need to reduce it working temperature...need more xplanation visit my workshop..bring semporna A menthol then i can story more- haha so lazy to write 'karangan panjang' here...

ps- shaft bend or cook usually cause by oil pressure not enough or delay- nothing to do with our discusion regarding cooling system

 

[speed2horizon]

bro if u study heat transfer then u now why sometime we need double cooling and some times just oil cooled..very simple..Bigger the area- heat can be transfer easily and also removed easily- concept 'extended surface'...smaller turbo usually need oil and water due to fact i stated above. engineer always calculated everything..position of the turbo also need to be consider..

garrett turbo- 'R' series which is ball bearing need water cooling system due to 'ballbearing' it self- to prevent it easily broken so need to reduce it working temperature...need more xplanation visit my workshop..bring semporna A menthol then i can story more- haha so lazy to write 'karangan panjang' here...

ps- shaft bend or cook usually cause by oil pressure not enough or delay- nothing to do with our discusion regarding cooling system

Bro, thanks for your useful additional info... Well, Semporna A menthol, how many packs U want..? Well, I think having cigarette as a trading medium for knowledge is something I shouldn't missed out... Where is ur workshop..?

 

[bebolagalas T]

Bro, thanks for your useful additional info... Well, Semporna A menthol, how many packs U want..? Well, I think having cigarette as a trading medium for knowledge is something I shouldn't missed out... Where is ur workshop..?

smoking bad for ur health..a pack should be fine haha...cigar is a 'pengeras' i aint sifu/master or guru to teach y'all but i think maybe i got something 2 share- dont know maybe usefull maybe not..i dont know..feel free to drop by to my place at subang..join speedspinturbo social group-hv my wshop address there :wavey:

 

[cyborgsabah]

i will be testing out the water injection soon , received my kit :D

Sorry off topic.. Jin, which kit are you using? AEM? Snow Performance?

 

[speed2horizon]

smoking bad for ur health..a pack should be fine haha...cigar is a 'pengeras' i aint sifu/master or guru to teach y'all but i think maybe i got something 2 share- dont know maybe usefull maybe not..i dont know..feel free to drop by to my place at subang..join speedspinturbo social group-hv my wshop address there :wavey:

Bro, joined the group liao. Couldn;t find ur address... Hmm what time does your ws close daily..? Cause I work in Puchong only... Not too far...

 

[bebolagalas T]

Bro, joined the group liao. Couldn;t find ur address... Hmm what time does your ws close daily..? Cause I work in Puchong only... Not too far...

No 9, Jalan SUbang Perdana 4/3 taman subang perdana, 40150 shah alam. 019 2434600
near subang air port

 

[rajie]

bro can u advice me im using a IHI VF8 turbo what is the max boost it can hold in safe zone ???
thanks ... using it on a b8T

 

[rajie]

vf8 rojak with VJ20

 

[bebolagalas T]

vf8 rojak with vj20

give me ihi family much easier e.g rhf, rhc,rhe,rx...etc

just assuming u r using rhf5 family stay below 2.2~2.5 pressure ratio should be fine..

same goes to smaller model like rhf4, rhf 3..

 

[rajie]

that means it will be RHB52(vf8) rojak with RHB5 (VJ20)
please advice safe boost running thanks bro