Fuel residue in intake/head ports

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Feb 3, 2008 | 06:40 PM

drperformance

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From: Pittsburgh

Car: 1987 firebird

Engine: 1995 lt1 383

Transmission: 4l60e

Axle/Gears: moser 9" with 3.70

Fuel residue in intake/head ports

What do you guys know about residue left behind in ported and polished intakes and heads? I just pulled my intake and found red residue left behind from the VP racing fuel I run.

Feb 3, 2008 | 08:39 PM

Supervisor42

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From: Arab, Alabama

Car: 1988 Trans Am GTA

Engine: 350 4BBL

Transmission: 700R4

Axle/Gears: 3.27

Re: Fuel residue in intake/head ports

Quote:

Originally Posted by drperformance

What do you guys know about residue left behind in ported and polished intakes and heads? I just pulled my intake and found red residue left behind from the VP racing fuel I run.

They probably don't put any detergents in racing gas. When it evaporates it leaves the red dye behind. It's similar to the black stuff found in stock engines that run cheap gasoline...
...and the reason polishing intake runners is a big waste of time.
Just my