Oil Filter Bypass or Block Bypass?

[EyesofThunder]

Anyone know on the 1UZ-FE is the oil filter bypass in the block or is it in the filter only?

GM likes it in the block, I feel better and more reliable quality control there, being spin on filters you can get a wide range of quality and assembly, who knows if any good or not.....

 

[cribbj]

It's in the filter. Toyota recommends/assumes you'll be using only their very high quality filters with internal bypass, not Walmart specials

 

[EyesofThunder]

Are they good filters? I use Wix now, figured can't go wrong with Wix.

Am wondering if I can use the big Ford filter, the FL1A (Wix 51515), it looks like it might fit in there.

 

[cribbj]

Not sure what the bypass is set for in the Toyota filters, but if the Wix has a similar setting, plus an anti-drainback valve, I'd go for it. I wouldn't go any lower on the bypass setting for obvious reasons.

Personally, I've been running Canton Mecca filters recently on my other hotrod (the 550 Maranello) and like them a lot. No internal bypass - they're full flow, but I have a pair of their largest filters (6 1/4" inches long) running in parallel.

 

[EyesofThunder]

I would rather go with no bypass and keep it flowing good all the time, but would need dual gauges or something to monitor flow in/out to ensure no restriction. I guess it could be done! But this is my DD, so likely not going to. I haven't heard of Canton Mecca.

I was thinking of what someone else did, run a System1 main filter and then a bypass filter to get the small stuff. Then killer flow, bypass if you want or not. The 30 micron System1 flows 24 gallons a minute 5W30 or 60 weight.

My suspicion is the bypass is bypassing a lot when the engine is cold, and that is when the dirt has settled to the bottom by the pickup.

 

[cribbj]

The Canton Mecca's will flow 46 gpm each of hot oil and I have 2 in parallel. Very little chance of restriction, particularly since I change my oil once a year or every 1000 miles, whichever comes first - and it's usually the annual change.

Amsoil make a bypass filter as you describe - I use it on the other hotrod (the supercharged 1UZ) with their remote adapter which has 2 spin on nipples - one for the bypass filter, one for a normal one. Check it out.