Coolant Bypass Line
#22
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I think that the heater hose has more resistance in it plus one other big factor, if coolant was to recirculate through the heater hose I don't think it would go past the coolant temp sensor. That would mean that even if the coolant in the block was up to temp the ECU might not catch that.
#23
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Hey Andrew, do you have a short cut mod for sealing off the rearward coolant line that goes to the throttle body and eventually over to the Driver side heater pipe. I want to eliminate those tiny hoses. I already bypassed the throttle body altogether with 1 hose from the rear hard pipe to the driver hard pipe. Now I want to do away with it altogether.
Just wondering if there is a short cut to removing the nipple from the rear pipe and plugging it with something else? Or is it best to remove and weld shut? Thanks.
Just wondering if there is a short cut to removing the nipple from the rear pipe and plugging it with something else? Or is it best to remove and weld shut? Thanks.
#24
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Hey Andrew, do you have a short cut mod for sealing off the rearward coolant line that goes to the throttle body and eventually over to the Driver side heater pipe. I want to eliminate those tiny hoses. I already bypassed the throttle body altogether with 1 hose from the rear hard pipe to the driver hard pipe. Now I want to do away with it altogether.
Just wondering if there is a short cut to removing the nipple from the rear pipe and plugging it with something else? Or is it best to remove and weld shut? Thanks.
Just wondering if there is a short cut to removing the nipple from the rear pipe and plugging it with something else? Or is it best to remove and weld shut? Thanks.
the rear pipe can easily be tapped for a 1/8 NPT plug.
the driver's side pipe would need a "cap" to cover its nipple. the problem I found was that all the available caps I could find won't take the heat and pressure of the coolant over time. they eventually started to breakdown and leak.
#26
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If you still have a thermostat installed AND remove the bypass hose how will the thermostst know when to open? When the block get's hot enough to cause it to open. I would think that you would want some flow to the thermostat so as to be opened by water temp vice the block temp. If keeping a thermostat and removing the hose drill a 1/4" hole thru the T-stat should be enough flow to make it work ok.
#31
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For anyone else attempting to do this kind of mod it is highly highly recommended to get a pressure check done on the piping before paint or reassembly. As andrew stated earlier the rubber plugs get weak and leak and when they do go it is not a slow leak. the topic was discussed on g35 driver in full lenght under dm2 coolant bypass mod. Thanks mike
#34
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I'm looking for an alternative/less permanant option to cap off the coolant ports left by removing some of these lines, and am considering these silicone caps:
can you guys let me know what you think about this? I have requested a sample, and will need to get out the calipers to measure the diameter of the pieces that I need to cap, unless someone out there could be nice enough to measure a few things for me???
http://www.stockcap.com/prod_detail.asp?id=181&cat=17
can you guys let me know what you think about this? I have requested a sample, and will need to get out the calipers to measure the diameter of the pieces that I need to cap, unless someone out there could be nice enough to measure a few things for me???
http://www.stockcap.com/prod_detail.asp?id=181&cat=17
#37
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I'm looking for an alternative/less permanant option to cap off the coolant ports left by removing some of these lines, and am considering these silicone caps:
can you guys let me know what you think about this? I have requested a sample, and will need to get out the calipers to measure the diameter of the pieces that I need to cap, unless someone out there could be nice enough to measure a few things for me???
http://www.stockcap.com/prod_detail.asp?id=181&cat=17
can you guys let me know what you think about this? I have requested a sample, and will need to get out the calipers to measure the diameter of the pieces that I need to cap, unless someone out there could be nice enough to measure a few things for me???
http://www.stockcap.com/prod_detail.asp?id=181&cat=17
#39
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From what I have read the bypass line is for faster warmup/emissions, and removing it has no effect on cooling. I am also interested in removing the factory oil cooler for an aftermarket one, and will need to cap off the coolant lines for this. I am also going to cap off the throttle body warmer while I'm at it.
Doing all of this will remove junk under the hood, and reduce the number of hoses that can eventually leak.
Doing all of this will remove junk under the hood, and reduce the number of hoses that can eventually leak.
#40
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I'm looking for an alternative/less permanant option to cap off the coolant ports left by removing some of these lines, and am considering these silicone caps:
can you guys let me know what you think about this? I have requested a sample, and will need to get out the calipers to measure the diameter of the pieces that I need to cap, unless someone out there could be nice enough to measure a few things for me???
http://www.stockcap.com/prod_detail.asp?id=181&cat=17
can you guys let me know what you think about this? I have requested a sample, and will need to get out the calipers to measure the diameter of the pieces that I need to cap, unless someone out there could be nice enough to measure a few things for me???
http://www.stockcap.com/prod_detail.asp?id=181&cat=17
So, has anyone tried these?
Last edited by rcdash; 02-26-2010 at 09:08 AM.