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Old 08-25-2003, 02:14 AM   #1
QAboy
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Default TB Bypass

I am aware of the dangers and have read a multitude of posts on this but haven't been able to find an answer to my question. I want to split the hose with a "Y" fitting on either side of the TB and put a valve on the incoming side. The problem is which side is the incoming side and which is the outgoing?

I have the day off tomorrow and would like to do this so I would really appreciate any help.

Thanks
eric
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Old 08-25-2003, 10:26 AM   #2
Dr Ken
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Someone please correct me if I'm wrong....

With a Y at each side, it seems to me that it would not really matter which direction the flow goes, nor which Y you chose to place a stopcock. The beauty of your approach is there is never any air in the line.

I gotta do this mod someday
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Old 08-25-2003, 11:25 AM   #3
QAboy
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OK, not sure if this helps but this is sorta what I was picturing. I suppose that putting a valved "Y" fitting on each side would work. But I would prefer to just do one side.

Well crap. I drew a really cool diagram but now it won't show up right. Oh well Y'all can probably picture it anyway.

Last edited by QAboy; 08-25-2003 at 11:31 AM.
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Old 08-25-2003, 11:59 AM   #4
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Dr Ken is right, it doesn't really matter which side you put the valve on. If you close it, the coolant will go through the bypass anyways, since there won't be any way for it to flow back through the TB since the valve is closed, and the TB line will be a dead end. Or, if you want to be really sure that nothing can get through the TB, put a valved Y on both sides.
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Old 08-25-2003, 12:17 PM   #5
QAboy
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I'm leaning owards putting a valved Y on each side but want to be sure that no harm can be done by having coolant just sitting in the TB. I assume that since air isn't getting in as well it would be fine.
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Old 08-25-2003, 08:37 PM   #6
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Quote:
Originally posted by QAboy
I'm leaning owards putting a valved Y on each side but want to be sure that no harm can be done by having coolant just sitting in the TB. I assume that since air isn't getting in as well it would be fine.
it's not so much the coolant sitting around as the sediment building up behind the valve. particles build up slowly and will all flush thorugh at once like opening up a tournequit. it can clog small passages in the cooling system. it's not that tough to just manually attach and remove it.

-IggDawg
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Old 08-25-2003, 08:59 PM   #7
QAboy
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yah that's what i've decided to do. what is the best way to cover the unused nipples?
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Old 08-25-2003, 09:10 PM   #8
Dr Ken
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... or maybe periodic flushing by momentarily opening the valve ...

edit: nipples, hehehe

Last edited by Dr Ken; 08-25-2003 at 10:17 PM.
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Old 08-26-2003, 09:30 AM   #9
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Quote:
Originally posted by QAboy
yah that's what i've decided to do. what is the best way to cover the unused nipples?
buy some little doohickeys at the autoparts store... that's what I did... and by doohickeys I mean little rubber plug things...
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Old 08-26-2003, 10:51 AM   #10
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Quote:
Originally posted by DanzBorin
and by doohickeys I mean little rubber plug things...
Vacuum caps?
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Old 08-26-2003, 10:53 AM   #11
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Quote:
Originally posted by RokketRide
Vacuum caps?
If that's what they are called... don't know... just when to that isle of random plugs and clips...
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Old 08-26-2003, 12:58 PM   #12
QAboy
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thanks I'm gonna try that today. Interestingly enough the 1/4 inch brass coupler was too small so I'm gonna have to go back out and get a bigger one
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Old 08-26-2003, 01:00 PM   #13
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yeah... I think you need 3/8...
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Old 08-26-2003, 02:53 PM   #14
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realisticly, what kind of gain should someone expect from this mod? Is it significant?
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Old 08-26-2003, 03:04 PM   #15
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Expect maybe ~3hp? It's basically free so you might as well do it.
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