does anybody know if the filter for a track back or boss is the same as a run of the mill gt.

 

Per the owners manual, same filter for V6 and V8. No difference for TP or Boss:

FL-500-S

 

Go for the bigger FL820 if you don't like the look of the stock one, pretty sure it was the same size as my 93 celica's.

 

Is the 820S the same thread size and gasket size?

I have a few of them on the shelf.

 

Yes, exact same everything just bigger.

 

More filter capacity.

 

The stock oil filter on my Boss was a very small unimpressive plain white can of corn... Reminded me of a can of nibblets in my wife's pantry. The Royal Purple replacement I have on now is much bigger and beefier.

 

So more like a can of Campbell's sirloin burger (beefy) soup in both exterior appearance and actual taste?

 

Not necessarily.

Filter capacity, it's capacity to contain the contaminants, is not always determined by the physical size of the filter can but by the filter media configuration.

 

The FL500S has a higher bypass than the FL820s. They both have the same amount of filter area.

 

What do you mean, higher bypass, and does this really matter if you switch fro a FR version to either an FL500 or 820 from another manufacturer?

 

I would think you need to contact the Manufacturer on their Specs.
I run the recommended Filter although I did look into running the 820 over the 500 thinking there would be more filter area and that is when I learned of the pressure differences in the Bypass valve.
I did find out that the FRPP equivalent to the FL820s was a much better filter and that is what the SVT guys are running.
http://www.svtperformance.com/forums...l-filters.html
There is a comparison of a few of the aftermarket and the standard 820s there.

 

I went with the Royal Purple version of the 820, gonna look up now how it stacks up against the FR version.

 

Interesting...

I go with Amsoil ea017 filters to go along with Amsoil 5w20.

 

I will be switching to that Amsoil filter when I switch to Amsoil 10-40 next spring to replace the hydro-cracked lame Royal Purple (cheaped out just like the original Mobil-1, sigh).

 

10 40?????????????

 

http://www.svtperformance.com/forums...oa-thread.html

 

Where is this coming from? Royal Purple isn't hydro-cracked. It's group IV PAO-based. I know because I've run the analysis on it myself. Sounds like you're buying into the Amsoil BS.

 

RP didn't used to be, but here it is;

http://www.svtperformance.com/forums...-amsoil-3.html

I don't know where all the hate comes from for Amsoil. Don't like their business model or the way the advertise? Fine, buy something else. I did my research after finding out about the specific RP oil I bought wasn't was I thought it was, and decided on Amsoil. I would bet you a beer the test results will be superior to the Royal Purple.

Thanks for posting that other link Brandon, those are my test results on line 8 & 9.

A lot of people are surprised when they read about the viscosity standards have a very liberal scale, and varies depending upon the manufacturer. So while Ford specs 50 weight on the factory fill, Motorcraft quickly shears to a 40 weight. Every oil change I get analyzed, and will have to wait about another year before my Amsoil fill, as I still 8 bottles of RP on the shelf (yes I know I need 8.5, will have to get another qt this spring).

 

Here's the OEM Boss filter, sorry I don't have a side by side with the RP;