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Old 05-10-2026, 09:38 AM
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HWYSTR455 HWYSTR455 is online now
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The Mishimoto stack plate coolers are very good, as are the Earl's ones. They can take hits from road debris and stay intact.

I like Nightmare stuff, but I personally would run better fittings. The Aeromotive tapered fittings flow much better, less restriction (true to size passage), and have less of a psi/flow drop. Compare them to others and the difference is very obvious.

It's crazy how much even name-brand fittings neck down in the passage, and it can force you to go up a size. In general, for oil, you don't want to run 90s. If you have to run a 90, run one of the Aeromotive ones (hose fitting), but due to the radius, you may not be able to.

Some headers have a tube that gets very close to the block where the filter housing adapter is, so you need to be careful of that.

Just some of my personal experience(s) I'm sharing...

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1970 GTO Judge Tribute Pro-Tour Project 535 IA2
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  #2  
Old 05-10-2026, 04:43 PM
Dragncar Dragncar is offline
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Quote:
Originally Posted by HWYSTR455 View Post
The Mishimoto stack plate coolers are very good, as are the Earl's ones. They can take hits from road debris and stay intact.

I like Nightmare stuff, but I personally would run better fittings. The Aeromotive tapered fittings flow much better, less restriction (true to size passage), and have less of a psi/flow drop. Compare them to others and the difference is very obvious.

It's crazy how much even name-brand fittings neck down in the passage, and it can force you to go up a size. In general, for oil, you don't want to run 90s. If you have to run a 90, run one of the Aeromotive ones (hose fitting), but due to the radius, you may not be able to.

Some headers have a tube that gets very close to the block where the filter housing adapter is, so you need to be careful of that.

Just some of my personal experience(s) I'm sharing...

.
Hard to believe Darrin runs those "hard 90" fittings on the remote filter mount.
These are a better deal if you need a 90 and don't have much room. A lot smoother and no O rings to leak, generic Amazon deal. I have a couple on my fuel system and no leaks
.https://www.amazon.com/dp/B0CKBYNLH3..._title_26&th=1

  #3  
Old 05-11-2026, 08:52 AM
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Yes, several places offer the 'full flow' type fittings, and the oil system is one place you don't want to skimp.

Some of the 'off brands' are JIC standard fittings, which can at times not thread easily/properly, but as long as you're careful, they work.

Some of the off brands still neck down, or are not tapered, try to look for that too. They are still full flow/true to size, but may cause a touch of turbulence.

Some folks will use a larger size line to make up for some flow, but also have to keep in mind that the larger the line, the large the 'column' of fluid there is, and could cause a pump to provide less volume. If you use an accusump, and you should, with larger lines, it could deplete the volume of the sump before providing full psi.

Another note, since the filter housing bypass is eliminated, you may want to ensure the filter(s) used have a bypass built in. And use a filter that has an extended burst rating.

Moroso used to be the go-to filter, but it's been a while since I've looked at them. Suspect there are others, or just use the 'screen' type. Those too you need to consider flow and burst ratings. You would be surprised some don't meet the requirements, but there again, it's been a while for me.


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1970 GTO Judge Tribute Pro-Tour Project 535 IA2
http://forums.maxperformanceinc.com/...d.php?t=760624
1971 Trans Am 463, 315cfm E-head Sniper XFlow EFI, TKO600 extreme, 9", GW suspension, Baer brakes, pro tour car
https://forums.maxperformanceinc.com...ght=procharger
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Old 05-13-2026, 11:04 PM
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Elarson Elarson is offline
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Definitely oil puking out of the fitting on the rear axle housing. I replaced the open fitting with an Allstar breather kit. See pic attached.

Eric
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Old 05-14-2026, 10:01 AM
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Let me know how that works please. Just about everything I've tried pukes oil.

The OE type 'rattle cap' ones are the worst!

Would prefer not spending $500 for a vent setup...

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1970 GTO Judge Tribute Pro-Tour Project 535 IA2
http://forums.maxperformanceinc.com/...d.php?t=760624
1971 Trans Am 463, 315cfm E-head Sniper XFlow EFI, TKO600 extreme, 9", GW suspension, Baer brakes, pro tour car
https://forums.maxperformanceinc.com...ght=procharger
Theme Song: http://www.youtube.com/watch?v=7zKAS...ature=youtu.be
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