[Cut Open] Baldwin BT261 vs B299 w/pics & specs

[Texan4Life]

finally got in my baldwin order. I had gotten an email back from baldwin about the difference, but I wanted to get one of each to cut open anyway.

both of the filters are for the same app. the BT261 is the "Standard" version and B299 is the "High performance" version.

What does baldwin say the difference is? media grade. Here is the screen shot I received:

http://i56.tinypic.com/29zwu0x.jpg

its a little hard to read so I'll type out the good part.

Code:
B299...BT261

Media Grade: L26-75M...L70-45

Media Area sq. in.: 682...487

Holding Capacity grams: 48...46

Estab. Micron Rating: 12...23

Beta Ratio 2/75: 12/25...23/45

Avg. Efficiency: 89.4%...75.98%


I think I'll be reaching for the B299 since it is only a dollar more. Enjoy the pics.

http://i53.tinypic.com/1rrsr6.jpg

http://i52.tinypic.com/21ke4xy.jpg

the BT261 had a nice little gasket to seal the other side. I thought that was a nice touch:

http://i51.tinypic.com/snouhi.jpg

Here it is as if it were assembled:

http://i51.tinypic.com/noblmc.jpg

These filters have a stand pipe. not sure why, maybe because they are mounted vertically, thread end down?:

http://i54.tinypic.com/vnkppc.jpg

B299:

http://i52.tinypic.com/9fqfsx.jpg

The b299's stand pipe was removable:

http://i55.tinypic.com/6r3mdy.jpg

http://i52.tinypic.com/15yg30g.jpg

BT21 on left, B299 on right:

http://i52.tinypic.com/2926ydw.jpg

http://i54.tinypic.com/fyh9q1.jpg

http://i56.tinypic.com/5o9w9d.jpg

 

[Texan4Life]

just had a thought that made me LOL.

The gasket on the BT261 is a nice touch that might prevent leakage. But with a beta ratio of 50% @ 23 and 98.7% @ 45 unfiltered oil getting past it is the least of my worries.

 

[Bottom_Feeder]

What's with the solid center tube?

Is anyone else not that impressed looking at those filtration specs?

 

[daman]

Baldwins are quality built filters but for the life of me i don't understand why there efficiency's are so poor. Some FG are that way too.

 

[Texan4Life]

I know right thats what put me on the hunt for something better.

FG makes a syn and stratapore but they are almost $30 per filter and I have to order a case worth. not sure what the FG specs are.

Wix #51784 beta is 2/20=20/44, 24 nominal.

Donaldson is not any better. Not sure what OEM is.

so I was trying to find something better, but also would not break the bank. I did score 2 new syn FGs (LF3559) on ebay for 15 shipped. but I need a better supply than lucky hits on ebay.

 

[daman]

Whats your application,your RAM?

most FG StrataPores will be in the range of 99% @ 30mic.

 

[chubbs1]

The thread end, underside of the baseplate on the BT261, is that rust or the gasket you are pointing out? (Pic 3)

Thanks.

 

[daman]

Originally Posted By: chubbs1
The thread end, underside of the baseplate on the BT261, is that rust or the gasket you are pointing out? (Pic 3)

Thanks.

Gasket

 

[Garak]

Originally Posted By: daman
Whats your application,your RAM?

most FG StrataPores will be in the range of 99% @ 30mic.


It appears to be Case and IH. I'm assuming that flow in a dusty environment where the oil could get easily contaminated is the priority, rather than filtration efficiency.

I suspect that Baldwin has a reason for such low specs on this filter. They're not all like this.

 

[daman]

Originally Posted By: Garak
Originally Posted By: daman
Whats your application,your RAM?

most FG StrataPores will be in the range of 99% @ 30mic.


I'm assuming that flow in a dusty environment where the oil could get easily contaminated is the priority, rather than filtration efficiency.

Now who in there right mine would want that for there expensive diesel engine?, not us.

 

[Garak]

Originally Posted By: daman
Now who in there right mine would want that for there expensive diesel engine?, not us.


Agreed. However, I don't know what models and model years these filters would have been specified for. IH wasn't a standalone brand since the mid 1980s, if I recall correctly. If it was specified for a combine, I can see their point. Daily air filter cleaning was the norm, so I would assume a lot of dust made it into the engine, and oil and filter changes would have been done once a year, or less frequently. A lot of combines in the day used gasoline engines, too, but again, I'm not sure what engines this filter is specified for.

 

[daman]

Yea i don't know but would love to hear there explanation.

 

[cp3]

What about a 51747? 2/20/75=8/19/24, better than the 51784, correct? Still trying to get the hang of these beta ratios.

 

[Texan4Life]

Originally Posted By: cp3
What about a 51747? 2/20/75=8/19/24, better than the 51784, correct? Still trying to get the hang of these beta ratios.


Nice find! I'm gonna have to look closer at the specs...

yeah this is for a IH hydro 70 with D312 diesel engine. it uses two of these oil filters. this tractor was bought new in the early 1970's I'm not sure how long this model was in production.