HTA Green failure
Why do FP turbos need the larger thrust bearing to survive high boost when BBK Fulls with stock MHI CHRA's can do 30+ psi?
Regardless, that would be the first failure Ive heard of directly attributed to a restrictive air filter. Look at all the people running stock airboxes and making decent power as an example. Maybe its possible I dont know, just an odd thing IMO.
Regardless, that would be the first failure Ive heard of directly attributed to a restrictive air filter. Look at all the people running stock airboxes and making decent power as an example. Maybe its possible I dont know, just an odd thing IMO.
I have a 20g that has had just the stock thrust replaced 5 times. lucky it only takes 5 minutes to remove from car. and another 10 to install new thrust.
the bigger thrust likely supports 4-5 times the thrust load. there is no comparison between the two.
94AWDCoupe: JK. LOL. Actually I have been disassembling the little buggers since 1976. My first turbo car was a 1975 BMW 2002 factory turbo. I bought it with a blown KKK turbo. But, that is another story.
At any rate, I have been tinkering with and taking them apart for over a quarter century. Granted, I haven't learned much in the process though. I still tie my shoes backwards.
At any rate, I have been tinkering with and taking them apart for over a quarter century. Granted, I haven't learned much in the process though. I still tie my shoes backwards.
So, '94, does this mean that all FP turbo conversions based on the stock turbo are configured with the smaller thrust bearings and that only CBRD turbos use the larger, upgraded bearings?
94AWDCoupe: JK. LOL. Actually I have been disassembling the little buggers since 1976. My first turbo car was a 1975 BMW 2002 factory turbo. I bought it with a blown KKK turbo. But, that is another story.
At any rate, I have been tinkering with and taking them apart for over a quarter century. Granted, I haven't learned much in the process though. I still tie my shoes backwards.
At any rate, I have been tinkering with and taking them apart for over a quarter century. Granted, I haven't learned much in the process though. I still tie my shoes backwards.
the early fp green came with larger thrust. I think this turbo was built on a monday.
Last edited by 94AWDcoupe; Jul 9, 2012 at 09:28 AM.
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So this FP turbo was not made properly or in line with how they should be made? Why would it not have a large thrust bearing if they are mission critical for high boost reliability?
this had to be an oversite. as many turbos they build its not really surprising.
all their turbos get the oversize brass thrust. when the blacks came out and starting failing they started making reds and blacks with the oversize steel thrust.
all their turbos get the oversize brass thrust. when the blacks came out and starting failing they started making reds and blacks with the oversize steel thrust.
obviosly sparky has never taken a turbo apart. I have a hundred times. there is always plenty of oil on bearings and thrust. the bearings and thrust do not wear at all during start up. the oil does not drip off either at shut down. there is always plenty for a restart. and at idle the turbo isnt spinning fast enough to hurt itself.
If for example my engine were to fail and upon disassembly I were to discover "plenty of oil" in the pan and on the component parts....what does that prove? If you have observed oil inside the turbo it just proves that there was oil passing through the center section. But, you have shed no light on the cause of the failure per se.
How can you state that no bearing damage can occur during start up and shut off? It is a widely accepted fact that most engine wear occurs during cold starts and thus by definition at low RPM. Would you argue this as well?
Just wanted to add that I remember a test about 7 years ago showing that the HKS filter was one of the highest flowing filters but it didn't do the job of filtering well at all and needed to be replaced a lot to remain effective.
While at Forced Performance a few years back I was told that the FP Green uses the stock brass thrust bearing and that only the Red and Black used to receive the upgraded steel thrust bearing.
Firstly i would like to state how this post has wildly swung back and forth from the topic... weird.
secondly, i have personally run a stock turbo to 33psi and a green hta to 35 psi. with fp 3intake stock box and filter. restriction was my middle name back then. if my turbos didn't eat it. i can't imagine why yours would.
and if the fp black ef4 bbk full and every other massive turbo comes with a 84mm compressor cover were to have issues with a 3in intake pipe then why is it so uncomon to find anything bigger. ya mean to tell me anyone making over 400hp is running a custom intake pipe like me?
No disrespect to the "turbo company" in question, they may be experts in their field. but specific products aren't governed by general rules. what applies to one turbo may be completely out of whack on another. I believe these guys are off base on their diagnosis and you should consult with forced performance in regards to their turbo. hell maybe they notice a manufacturing error caused the failure and you get a free rebuild. if not either way you are stuck with a rebuild bill so whats the harm in it.
secondly, i have personally run a stock turbo to 33psi and a green hta to 35 psi. with fp 3intake stock box and filter. restriction was my middle name back then. if my turbos didn't eat it. i can't imagine why yours would.
and if the fp black ef4 bbk full and every other massive turbo comes with a 84mm compressor cover were to have issues with a 3in intake pipe then why is it so uncomon to find anything bigger. ya mean to tell me anyone making over 400hp is running a custom intake pipe like me?
No disrespect to the "turbo company" in question, they may be experts in their field. but specific products aren't governed by general rules. what applies to one turbo may be completely out of whack on another. I believe these guys are off base on their diagnosis and you should consult with forced performance in regards to their turbo. hell maybe they notice a manufacturing error caused the failure and you get a free rebuild. if not either way you are stuck with a rebuild bill so whats the harm in it.