full flow vs bypass coolant filter?? - Ford Powerstroke Diesel Forum
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post #1 of 23 Old 10-14-2012, 09:18 AM Thread Starter
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full flow vs bypass coolant filter??

Wondering if anyone has measured results from running a full flow vs bypass (like my Sinister one) in the coolant system? Anyone run both types of filters?

2005 Dark Blue F-250 Harley Davidson 4x4. SCT Livewire TS, 4" Silverline TBE, Sinister intake elbow, Riff Raff turbo boots, Blue spring, 6.4 banjo bolts, Sinister coolant filter, Fleetguard OAT, IPR EGR delete, ARP studs.

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post #2 of 23 Old 10-14-2012, 09:36 AM
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What stops a full filtration system from clogging the filter and causing catastrophic failure? A bypass sytem will not do t his if the filter is clogged by nature of its design.

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post #3 of 23 Old 10-14-2012, 10:10 AM
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A full flow will obviously filter more, but I don't like them. First, noone has answered the question about how much a clean, full flow filter restricts coolant flow. Second, its the same as a clogged oil cooler when it does clog. As Karl mentioned, a bypass filter will still allow coolant flow even when its fully clogged. Hence the reason its called a "bypass" filter.

Some people will swear that a full flow filter is the only way to go, but I just don't buy it.

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Last edited by Snake; 10-14-2012 at 10:14 AM.
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post #4 of 23 Old 10-14-2012, 10:12 AM Thread Starter
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I'm wondering how long it takes for a bypass filter to completely clean out the system.

2005 Dark Blue F-250 Harley Davidson 4x4. SCT Livewire TS, 4" Silverline TBE, Sinister intake elbow, Riff Raff turbo boots, Blue spring, 6.4 banjo bolts, Sinister coolant filter, Fleetguard OAT, IPR EGR delete, ARP studs.

1998 Dodge Viper GTS. Silver/Blue stripes 1 of 21: Corsa exhaust, high flow cats, K&N filters, smooth tubes
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post #5 of 23 Old 10-14-2012, 01:45 PM
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Originally Posted by Snake View Post
A full flow will obviously filter more, but I don't like them. First, noone has answered the question about how much a clean, full flow filter restricts coolant flow. Second, its the same as a clogged oil cooler when it does clog. As Karl mentioned, a bypass filter will still allow coolant flow even when its fully clogged. Hence the reason its called a "bypass" filter.

Some people will swear that a full flow filter is the only way to go, but I just don't buy it.
I am going to assume we're talking about the IPR Full Flow coolant filter here. As I pointed out when this product was first announced the name is misleading because it is in fact still a bypass filter, it is just using a higher volume source than the others like Sinister, Diesel Site, et. al. It uses the heater circuit as a coolant source so it filters much more coolant per minute BUT the heater circuit is still a bypass circuit. If you stop the flow to the heater nothing bad will happen and your truck will not overheat. So in spite of the name it is still a bypass filter but much more effective than all the others.
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post #6 of 23 Old 10-14-2012, 02:13 PM
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I'm using my ipr filter to filter 100% of the coolant before it goes into the oil cooler, as long as you have a monitoring sorce it's fine......deltas go up, clean the filter it's that easy.
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post #7 of 23 Old 10-15-2012, 06:38 AM
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Quote:
Originally Posted by PGreenSVT View Post
I am going to assume we're talking about the IPR Full Flow coolant filter here. As I pointed out when this product was first announced the name is misleading because it is in fact still a bypass filter, it is just using a higher volume source than the others like Sinister, Diesel Site, et. al. It uses the heater circuit as a coolant source so it filters much more coolant per minute BUT the heater circuit is still a bypass circuit. If you stop the flow to the heater nothing bad will happen and your truck will not overheat. So in spite of the name it is still a bypass filter but much more effective than all the others.
Interesting, and really appreciate the clarification Mitch. For some reason I thought the filter was in a location that cleaned 100% of the coolant, or there was some type of change in the coolant routing that sent 100% of the coolant through the IPR filter.

I'm not sure what to think about the IPR kit.....in one regard, this diminishes the value in my opinion. If there's unfiltered coolant going through the oil cooler, its obviously much more likely to clog again at some point in the future. Obviously not as quickly as a motor without a coolant filter (or a bypass filter that cleans less coolant), but the risk is there. On the other hand, a clogged coolant filter won't completely block the flow of coolant, which is a plus.

I dunno. There's an advantage with the kit for sure, but I still don't believe it's a 100% solution.

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Last edited by Snake; 10-15-2012 at 10:49 AM.
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post #8 of 23 Old 10-15-2012, 07:17 AM
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Mike the only 100% solution to clogged oil coolers is the BPD kit and even then some will argue that it isn't capable of handling the cooling duties on 100% of the uses these trucks see, so I'm with you. I dunno.

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post #9 of 23 Old 10-15-2012, 09:40 AM
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Quote:
Originally Posted by Snake View Post
Interesting, and really appreciate the clarification Mitch. For some reason I thought the filter was in a location that cleaned 100% of the coolant, or there was some type of change in the coolant routing that sent 100% of the coolant through the IPR filter.

I'm not sure what to think about the IPR kit.....in one regard, this diminishes the value in my opinion. If there's unfiltered coolant going through the oil cooler, its obviously much more likely to clog again at some point in the future. Obviously not as quickly as a motor without a coolant filter (or a bypass filter than cleans less coolant), but the risk is there. On the other hand, a clogged coolant filter won't completely block the flow of coolant, which is a plus.

I dunno. There's an advantage with the kit for sure, but I still don't believe it's a 100% solution.
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Mike the only 100% solution to clogged oil coolers is the BPD kit and even then some will argue that it isn't capable of handling the cooling duties on 100% of the uses these trucks see, so I'm with you. I dunno.
Mike and Nate, if you run the IPR coolant filter in conjunction with their remote mount setup for the oil cooler you have a very effective solution to the oil cooler clogging. The filter goes in line with the coolant in port on the oil cooler so 100% of the coolant going into the oil cooler is being filtered immediately before entering the cooler. That "should" prevent the oil cooler from ever becoming clogged again. It doesn't protect against a possible internal failure within the oil cooler and cross contamination of the cooling and oil systems though. IMO it is a valid solution to the oil cooler clogging issue in that configuration and a well done product.

Even using the coolant filter by itself without the remote oil cooler mount it is the most effective coolant filter currently on the market and still well worth it from that point of view as well.

Last edited by PGreenSVT; 10-15-2012 at 09:44 AM.
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post #10 of 23 Old 10-15-2012, 10:54 AM
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Quote:
Originally Posted by PGreenSVT View Post
I am going to assume we're talking about the IPR Full Flow coolant filter here. As I pointed out when this product was first announced the name is misleading because it is in fact still a bypass filter, it is just using a higher volume source than the others like Sinister, Diesel Site, et. al. It uses the heater circuit as a coolant source so it filters much more coolant per minute BUT the heater circuit is still a bypass circuit. If you stop the flow to the heater nothing bad will happen and your truck will not overheat. So in spite of the name it is still a bypass filter but much more effective than all the others.
Quote:
Originally Posted by PGreenSVT View Post
The filter goes in line with the coolant in port on the oil cooler so 100% of the coolant going into the oil cooler is being filtered immediately before entering the cooler.
Mitch, you win! I'm officially confused. Is their filter a bypass or does it filter 100% of the coolant?

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