Air filter cover 1992 non turbo - Ford Powerstroke Diesel Forum
7.3L IDI (Non-Powerstroke) Diesels Technical discussion of topics related to vehicles powered by the 7.3 Liter In-Direct Injection Navistar engines.

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post #1 of 2 Old 01-22-2008, 10:10 AM Thread Starter Rookie
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Air filter cover 1992 non turbo

Can any one tell me what the dome shaped piece is on the under side of the air filter cover is for and can it be removed to help air flow to the engine.

Thanks Scott

1992 F250 Super Cab 4x4 5speed non-turbo
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post #2 of 2 Old 01-22-2008, 03:34 PM
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It is nothing but pure restriction, cut it off!!!! I cut all mine off with a torch as close to the top of the lid as I could, you could use a cutting wheel on a 4'' grinder to do it too. It will make a diff.!!!

'90 F250 Supercab IDI 7.3
Banks Sidewinder Turbo
4'' straight pipe
116,000 miles

'94 F250 single cab IDI Factory Turbo 7.3
3'' banks down pipe
Banks pyrometer
3 1/2'' straight pipe
K&N Air filter
Hypermax air intake
Hydrogen Generator
Pump turned up
Timing advanced
315,000 miles!

'89 F250 4x4 supercab 7.3 IDI
4'' exhaust
pump turned way up!!!
297,000 miles
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