Questions about STS
#42
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Why not just go buy the right size t from lowes or home depot and just tie it into the brake booster vac line? It makes for a smaller vac hose off the BOV. My hose from my BOV was always cracking and spliting. It makes less hose to have to buy if it does it to you too. Other than that I have no idea which one to t into on the throttle body, honestly I haven't even heard of anybody doing that. But, I have now.
#43
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Why not just go buy the right size t from lowes or home depot and just tie it into the brake booster vac line? It makes for a smaller vac hose off the BOV. My hose from my BOV was always cracking and spliting. It makes less hose to have to buy if it does it to you too. Other than that I have no idea which one to t into on the throttle body, honestly I haven't even heard of anybody doing that. But, I have now.
#45
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Hmmm, one problem is you should not have any lines running off the throttle body into the valve covers or whatever that do not have check valves on them.
With a turbo or any boosted application the TB goes from having vacuum to having boost. If any hoses are connected directly to the motor like in an NA application you will now send the boost to the TB into the motor WHICH IS BAD.
That is a whole different problem though. Any line off the TB or intake will provide the correct info for a BOV. But you cannot have a line from the TB to the valve cover without having a check valve on a boosted motor or else you will be sending air from the turbo into the crankcase of the motor. The Brake booster must have a check valve also.
Hope that helps you understand.
PS. and SCH all I see is a red x
With a turbo or any boosted application the TB goes from having vacuum to having boost. If any hoses are connected directly to the motor like in an NA application you will now send the boost to the TB into the motor WHICH IS BAD.
That is a whole different problem though. Any line off the TB or intake will provide the correct info for a BOV. But you cannot have a line from the TB to the valve cover without having a check valve on a boosted motor or else you will be sending air from the turbo into the crankcase of the motor. The Brake booster must have a check valve also.
Hope that helps you understand.
PS. and SCH all I see is a red x
#46
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Hmmm, one problem is you should not have any lines running off the throttle body into the valve covers or whatever that do not have check valves on them.
With a turbo or any boosted application the TB goes from having vacuum to having boost. If any hoses are connected directly to the motor like in an NA application you will now send the boost to the TB into the motor WHICH IS BAD.
That is a whole different problem though. Any line off the TB or intake will provide the correct info for a BOV. But you cannot have a line from the TB to the valve cover without having a check valve on a boosted motor or else you will be sending air from the turbo into the crankcase of the motor. The Brake booster must have a check valve also.
Hope that helps you understand.
PS. and SCH all I see is a red x
With a turbo or any boosted application the TB goes from having vacuum to having boost. If any hoses are connected directly to the motor like in an NA application you will now send the boost to the TB into the motor WHICH IS BAD.
That is a whole different problem though. Any line off the TB or intake will provide the correct info for a BOV. But you cannot have a line from the TB to the valve cover without having a check valve on a boosted motor or else you will be sending air from the turbo into the crankcase of the motor. The Brake booster must have a check valve also.
Hope that helps you understand.
PS. and SCH all I see is a red x
![Icon Lol](https://ls1tech.com/forums/images/smilies2/icon_lol.gif)
You do bring up a good point about not boosting the crankcase though! Either way....I'm good
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