Fuel System Cleaner Recommendations?

Hi. I have a 96 Cobra with 110k. When applying seafoam through the nozzle on the plenum, at what rate (minutes?) should it be sucked in. Yes, I'm attempting to restore power by removing years of carbon buildup. Is hydrolock-ing a concern?

https://www.svtperformance.com/threads/fuel-system-cleaner-recommendations.1163854/

03cobra#694 said:

Yeah, I like the Chevron Techron myself.

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Ford did a study on the effects of Chevron Techron sometime in the 2005 year due to the Explorer refresh fuel pump sending units and found that if you added it to a full fresh tank of gas it would breakdown the corrosion on the fuel pump sending unit resistor.

Dumping a bottle of Techron was the "fix" for Explorer TSB fuel pump sending units for at least a year until they started replacement of the pumps. And i can say 50% of the time it actually worked with no return.

After that i have always said that Techron is the best stuff on the market.

therzl said:

Hi. I have a 96 Cobra with 110k. When applying seafoam through the nozzle on the plenum, at what rate (minutes?) should it be sucked in. Yes, I'm attempting to restore power by removing years of carbon buildup. Is hydrolock-ing a concern?

https://www.svtperformance.com/threads/fuel-system-cleaner-recommendations.1163854/

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Are you trying to clean the intake track or the fuel system? sucking it through the intake will not clean the fuel system. You add it to the fuel tank to clean the fuel system. Now if you are trying to do all three (intake, oil, fuel) then depending on can size it should take under a min to down a normal size bottle. When adding to my oil I usually do it a few hundred miles before oil change so to get fresh oil in there soon after.

GodStang said:

Are you trying to clean the intake track or the fuel system? sucking it through the intake will not clean the fuel system. You add it to the fuel tank to clean the fuel system. Now if you are trying to do all three (intake, oil, fuel) then depending on can size it should take under a min to down a normal size bottle. When adding to my oil I usually do it a few hundred miles before oil change so to get fresh oil in there soon after.

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This is correct. I use Seafoam anytime I purchase an older vehicle and basically I keep the RPMs at 2k and let it suck in the Seafoam just fast enough to pull the engine down from that. At that rate, hydrolocking isn't a concern. After you do that, put some in the gas tank to clean the fuel system out, and you can either do what GodStang mentioned for the oil, or just change the oil to some cheap walmart stuff, add in the Seafoam, and then change it again in 500 miles or so. From experience, in that 500 miles, the oil turns BLACK.

GodStang said:

Are you trying to clean the intake track or the fuel system? sucking it through the intake will not clean the fuel system. You add it to the fuel tank to clean the fuel system. Now if you are trying to do all three (intake, oil, fuel) then depending on can size it should take under a min to down a normal size bottle. When adding to my oil I usually do it a few hundred miles before oil change so to get fresh oil in there soon after.

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I'm trying to clean the intake track (I use Berryman B 12 for the fuel system) of carbon. I suppose that includes the imrc. I'm wondering how quickly/slowly I should allow the Seafoam to trickle in? I've viewed conflicting demonstrations on You Tube.

nofire said:

This is correct. I use Seafoam anytime I purchase an older vehicle and basically I keep the RPMs at 2k and let it suck in the Seafoam just fast enough to pull the engine down from that. At that rate, hydrolocking isn't a concern. After you do that, put some in the gas tank to clean the fuel system out, and you can either do what GodStang mentioned for the oil, or just change the oil to some cheap walmart stuff, add in the Seafoam, and then change it again in 500 miles or so. From experience, in that 500 miles, the oil turns BLACK.

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How many minutes, roughly, for an entire can?

therzl said:

How many minutes, roughly, for an entire can?

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Maybe 2. it's not long at all.

Amsoil Power Foam is good stuff, just follow the instructions. On a fuel injected engine, if the PCV valve was accessible, I would pull the valve out and rotate it around to face upwards and spray the power foam directly into the PCV valve. This would clean the valve and since most of the gunk in the itake comes from the PCV system, it makes sense to send the cleaner through the same route.

Power Foam®

Unfortunately for me they stopped selling it in Canada for some reason.

lucas injector cleaner is really good shit, and chevron techron. I use both of those, as well as seafoam through the intake system. all three would be a great combo and cost $30, last the whole year or longer.

If you look up the ingredients they all contain nearly the same stuff. I use 2 tanks of Amsoil PI treated twice per year to keep my systems clean.

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