2015 Engine differences

[kch]

Originally Posted by FRS Justin

You won't be the first I have to educate.....The pictures posted were the electronic parts catalog. I didn't see the need to post 6 more pages to prove the short block is the same number, or to prove anything else I posted. Do you think I make this stuff up? No I research, and I develop, and I help anyone who asks. It's quite obvious you don't know me or what I've done and that is ok, but before you start questioning what I have done bring something to the table besides you wishful thinking and wrong information. 2016 made safety changes??? What the hell is that???? Why don't you sit down and bring up 3 windows of the EPC and start finding the differences like I did?
So in closing I will leave you with these thoughts,
1: Why 4 years later did these Safety changes happen instead of sooner this engine is still a boxer nothing new.
2 Wouldn't you think they would have worried about their reputation long before now on this new platform?
3: If 2015 is so special why are they exploding too?


EDIT:
Looks like their are no "safety changes" in the short block since 2012

But then why the small difference in valve length? Element Tuning says the rockers are different too--and they've built their fare share of FA20s.

[FRS Justin]

Originally Posted by kch

But then why the small difference in valve length? Element Tuning says the rockers are different too--and they've built their fare share of FA20s.

I covered this last year when I built my motor and discovered the valves had changed. The short version is nobody really knows for sure. Some say to help with the rocker arms to keep them from dropping out. Others say it was to cut production cost by making the valves match and no need to manufacture 2 different valve sizes.
I wish I had more info but I really didn't put much into it besides getting new aftermarket ones made.

[nikitopo]

Originally Posted by FRS Justin

You won't be the first I have to educate.....The pictures posted were the electronic parts catalog. I didn't see the need to post 6 more pages to prove the short block is the same number, or to prove anything else I posted. Do you think I make this stuff up? No I research, and I develop, and I help anyone who asks. It's quite obvious you don't know me or what I've done and that is ok, but before you start questioning what I have done bring something to the table besides you wishful thinking and wrong information. 2016 made safety changes??? What the hell is that???? Why don't you sit down and bring up 3 windows of the EPC and start finding the differences like I did?
So in closing I will leave you with these thoughts,
1: Why 4 years later did these Safety changes happen instead of sooner this engine is still a boxer nothing new.
2 Wouldn't you think they would have worried about their reputation long before now on this new platform?
3: If 2015 is so special why are they exploding too?


EDIT:
Looks like their are no "safety changes" in the short block since 2012

It is a new engine, it is simple. I don't say that the first generation engines were crap. Maybe they had a higher failure rate. Even the revision engines have failures. They are build by humans and each one has different tolerances. We all know that every engine is a bit different. And just to let you know, the real Subaru EPC works with a VIN and it is not related with this web application you are posting where you select "Premium Level" and tells you how many viewers have watched recently.

Apart from these, I don't want to ruin my subject. I also like cars with 500++ hp and whoever wants he can make his car like this. But we should also be honest of what we sell or promote. Personally I want to have a car with a strong engine even after 10 years. Others want to live just the moment. And don't take it personal. It's not about you or your work. It is all about of what we can get from a 2000cc engine. Unless, we are talking about the really big guys in Super-GT and more exactly in GT500 where they are spending multi-million dollars in engine R&D


Discussion ends here.

[FRS Justin]

Originally Posted by nikitopo

It is a new engine, it is simple. I don't say that the first generation engines were crap. Maybe they had a higher failure rate. Even the revision engines have failures. They are build by humans and each one has different tolerances. We all know that every engine is a bit different. And just to let you know, the real Subaru EPC works with a VIN and it is not related with this web application you are posting where you select "Premium Level" and tells you how many viewers have watched recently.

Apart from these, I don't want to ruin my subject. I also like cars with 500++ hp and whoever wants he can make his car like this. But we should also be honest of what we sell or promote. Personally I want to have a car with a strong engine even after 10 years. Others want to live just the moment. And don't take it personal. It's not about you or your work. It is all about of what we can get from a 2000cc engine. Unless, we are talking about the really big guys in Super-GT and more exactly in GT500 where they are spending multi-million dollars in engine R&D


Discussion ends here.

I agree with the honesty of a post 100%
So please show everyone of these changes that were made for safety in 2016 or any 2015 changes. Good luck having a strong engine in 10 years unless you only drive 3 to 4k a year. If you drive the national average of 12 to 15k a year in 10 years your going to be down power....

[nikitopo]

Valves changes

OLD:




NEW (June '14):

[nikitopo]

Head and Valve set

OLD:




NEW (June '14):

[VeilSide]

Is this a public database or do you have special access?

[nikitopo]

Originally Posted by VeilSide

Is this a public database or do you have special access?

It is not public. You have to buy the CDs.

[JDM4E]

Just a reminder that a changed part number doesn't necessary mean different part. It just could be a different manufacturer of the same specs etc.

[FRS Justin]

Originally Posted by nikitopo

Valves changes

OLD:




NEW (June '14):

SO your showing me a 2014 and some other year older. I think the question was, " show me the safety changes made in 2015." Everyone knows their is a difference in 2014.

[nikitopo]

Originally Posted by JDM4E

Just a reminder that a changed part number doesn't necessary mean different part. It just could be a different manufacturer of the same specs etc.

If they change parts because of different manufacturer and same specs, then the EPC program suggests both parts (old and new). In our case EPC suggests for the new car only the new part. Reason is to avoid incompatibilities.

[nikitopo]

Originally Posted by FRS Justin

SO your showing me a 2014 and some other year older. I think the question was, " show me the safety changes made in 2015." Everyone knows their is a difference in 2014.

All cars produced after June 2014 are considered 2015 model cars. My EPC is not updated for the 2016 model cars if this is what you mean. I know about the 2016 changes because a country's Subaru representative is my friend and they imported a few months ago an entire new engine from Subaru Japan. So, we had a chance to compare some part numbers. In 2016 model they changed for example the oil pan. But, major revision was with the 2015 model.

[FRS Justin]

Alright so at the end of all this post what did we all learn......




1. At the end of production year 2013 Subaru increased the intake valve length to what it is on todays engines. Which I posted about a year ago.....


2.Internet software by Subaru has the same numbers as the disk version.....


3. Everyone who read this thread has lost 10 minutes of their life they will never get back................


EDIT




Look this is over, you started this thread stating almost every valve train part is revised in 2015.
That is FALSE 100% FALSE!!!! I covered this a year ago, the change with adding the length to the intake valve happened in production 2014 Which means the valves were actually swapped in 2013 no major changes since...... The head number changed because they are assembled with the longer valves and supporting hardware. I'm not going to debate this any longer. IF you want to believe you have a super motor go ahead makes no difference to me...

[nikitopo]

I mentioned also a change made in 2015, but it looks that you want to overlook it. Here are more details in Toyota parts:

before 2015/04



after 2015/04


I don't have the Subaru parts, but I'm sure that there is a similar change.

So, they tried to update a bit more the oil system. Don't underestimate these engines. Apart from customer feedback, they constantly gather information from manufacturer races (e.g., in Japan and Germany) and whenever possible they're trying to make improvements.

Finally, for the 2014 changes yes there were comments one year before that the valve changes were actually made earlier. Not only by you, but also from other people. I think the most important here is to record knowledge and share our thoughts. Then people are free to decide what is important and what is not.