nitrodann

I have a couple of customers car which are street driven and have done dozens and dozens of trackdays with this feed location with zero detrimental effects.

These days now that I work for myself I can see it from Begi and FM's perspective.

I guess that back in the day they didnt know what would be okay long term so they used the one place they knew would be safe without question, to protect themselves from liability.

Now they simply continue to use that location as I continue to use mine.

I first used that location after seeing a few old track cars that had used it for years and when i realised how easy and cheap and professional a head feed hardline is.

Dann

18psi

iTrader: (76)

Well it really is tempting to try it. I definitely like how clean and simple it is. I dunno about the fm/begi liability statement though: they update their systems and parts over the years. (not all of them, but a good handful if not more)

nitrodann

I'll give another example of why companies may not use this method.

Take the S chassis guys. Only the most clued in ones will run intercooler piping around the chassis. 95% cut a hole through the battery tray, because in that community it's well known that an extra foot of IC piping will make it laggy.
I sat down with one guy who had found some old stock IC piping that didnt cut a hole, and we did the basic maths to show the difference it makes, and after understanding and agreeing with the maths still wasn't sure whether to buy a through the battery tray kit for 800 vs 500 for the other kind.

Just like in some communities it's well known that 4>1 headers will never make any bottom end and n/a cars need backpressure to make torque.

So in other words, if the community as a whole isn't sure, no matter how much proof you give them, people don't want to go against the grain because they are afraid of what their mates might say.

Dann

FRT_Fun

iTrader: (19)

Although what you have said may be true for some things, oil pressure is a bit different than a few extra feet of intercooler piping. I'd rather not risk it when there is another way that will, without any doubt, not cause problems.

For FM it would make sense for them to use it if it is safe. It makes their product easier to install = happier customers. Changing up the kit will most likely cost them less since they don't need that adapter any more. There really is no downside for them. FM has enough of a reputation to say "This is safe." and just about everyone will say "okay cool!".

Either way until there is some solid evidence I'm still skeptical. And being skeptical about oil pressure is not something I care for.

nitrodann

What proof do you want?

Want a photo of a car which has been running this for ages with the cams out?

Also, you prove my point exactly, if people are scared to run an extra foot of cooler piping they most certainly NOT run oil lines they arent 110% sure of, like you. Hence FM not changing them.

Dann

Turbo Turtle

im going with dann on this one. the zetec is the same. it has a restrictor in the head just like the bp and me and many many others have been using the oil galley plug in the head for feed with great results. but there are still some that put that tee in the oil pressure sending unit. ive even seen a few engine failures b/c that tee cracked and snapped off at wot and emptied the oil out of the engine.

i'll use the head along with dann and his customers. if my engine shows low oil pressure from this port, if the lifters make noise, or if the engine goes i'll let you know the reason im putting an ls1 in... ha

here is the zetec's. pretty much the same


Tim

Joe Perez

iTrader: (8)

Recognizing that the thread has already sort of moved on...

There is.

It's p/n 10-305A in this diagram:



All years had it, including '01+. (The VVT mechanism had its own dedicated supply.)

Here it is installed in the block, circled in green:




While I realize that some folks have in fact taken their turbo oil supply from the head, this restrirctor, along with the fact that the cams ride directly in the head casting with no bearings, is why I will never do that. Call me paranoid.

18psi

iTrader: (76)

+1 joe

the one thing that keeps bothering me is the fact that mazda didn't source vvt actuator oil from the head despite that being way easier and simpler. They also didn't source it from the head on the MSM for the turbo.

But then we have that limited production aussie 01+ with the turbo feeding from the head. But there was only like 100 of those or something, so......

Japanraider

Are there any long term experiences about that oil supply technique? otherwise id like to do it that way too.

psyber_0ptix

iTrader: (4)

There have been responses to this question in the thread. Re-read it. There have also been considerations offered as to why Mazda does not do this from factory for their turbo vehicles. You can draw your own conclusions with the information available.

Japanraider

i read all the posts, but want to know if there are any bad experiances since the last post 2013

psyber_0ptix

iTrader: (4)

You seem like the type that would ask about sourcing oil from a sandwich adapter (unfiltered) and ask if there's any risk to the turbo. Yes it will work. Sure people do it. Is it a great idea?

DNMakinson

iTrader: (3)

See my build thread. Been using this for 10,000 miles. Haven't opened the valve cover, but car and turbo seem fine. -4AN with 1mm restrictor fitting on a TD04 turbo (journal bearings), 7200 RPM redline, not yet tracked.