BOV Placement.

Discussion of technical issues and ideas (engine, chassis)

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veecee
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Post by veecee »

veecee wrote:please tell me where, so i can go buy a 2 litre bottle, and pull in.

and the bov will obviously be placed before the cooler, for convenience reasons. (yes i hate it like that).
please tell me where, so i can go buy a 2 litre bottle, and pull in.

and the bov will obviously be placed before the cooler, for convenience reasons. (yes i hate it like that).
ReeceZ wrote:I'm sorry... I couldn't help it. Please no one wish any hateful shit on me, I own an SX already
The Calibrator
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Post by The Calibrator »

Seems Mr AG Bell says similar things to Gary. I think I will test it on Mr Erro Sennins car :)
veecee
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Post by veecee »

The Calibrator wrote:Seems Mr AG Bell says similar things to Gary. I think I will test it on Mr Erro Sennins car :)
yes, get back to work :lol: :lol: :lol:
ReeceZ wrote:I'm sorry... I couldn't help it. Please no one wish any hateful shit on me, I own an SX already
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Gary57
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Post by Gary57 »

Seems Mr AG Bell says similar things to Gary
Great book :lol: .

You see this is the problem everyone on these forums say put it after the IC but the experts say put it before. Personally I am more inclined to listening to the experts.

Mine is before the cooler now and all is well. Although I do hear a flutter if I tap off and the car wasnt boosting yet. Not sure if I should pull the shim out of the BOV, will make it blow at a lower pressure.
veecee
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Post by veecee »

Gary57 wrote:
Seems Mr AG Bell says similar things to Gary
Great book :lol: .

You see this is the problem everyone on these forums say put it after the IC but the experts say put it before. Personally I am more inclined to listening to the experts.

Mine is before the cooler now and all is well. Although I do hear a flutter if I tap off and the car wasnt boosting yet. Not sure if I should pull the shim out of the BOV, will make it blow at a lower pressure.
thats it then, as soon as i've finished reading all this fancy literature, i will take a coke along to vlades drug buddy, and have my bov installed before the cooler. its convenient that way too. i dont have to have a complicated pipe with different ID's at either end and an S-shape curve made to order. that sounded expensive anyway!
ReeceZ wrote:I'm sorry... I couldn't help it. Please no one wish any hateful shit on me, I own an SX already
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Gary57
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Post by Gary57 »

So whats the virdict, before the cooler or after??

Daune what you think??
The Calibrator
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Post by The Calibrator »

Honestly on street cars with the boost levels we run I think either way is pretty much the same. I will test it on the car I am busy with but I dont expect to see much difference.

You may see a difference on a road race car or drift car but most people flat shift when drag racing so the dump valve never opens anyway.
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Gary57
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Post by Gary57 »

And the possition on the pipe, where and how far from the cooler?? I will make it a smooth exit and everything so the flow is good.
The Calibrator
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Post by The Calibrator »

i reckon put it where the air speed is lowest or the turbulence highest so it wont affect the airflow that much.
From a intercooler efficiency point of view bevfore the cooler is better but from a flow restriction point of view I reckon after the cooler is better. The pipe ID is bigger and the air speed is lower and I reckon at the intercooler outlet as the turbulence is highes there.

You could play for weeks with different positions and come up with no proper conclusion on a road car.
The Calibrator
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Post by The Calibrator »

Fokken errors
Last edited by The Calibrator on Thu May 10, 2007 1:48 pm, edited 1 time in total.
The Calibrator
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Post by The Calibrator »

More errors
Last edited by The Calibrator on Thu May 10, 2007 1:49 pm, edited 1 time in total.
www.MotorCade.co.za
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Post by www.MotorCade.co.za »

I would suggest just before the throttle body.
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Post by www.MotorCade.co.za »

I would suggest just before the throttle body.
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Phinx
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Post by Phinx »

basically I think we are all stressing with the small stuff.

My Recirculation Valve is on the hot pipe because of piping constraints.
I know its not the best but it woks and I don't have the time or am I willing to waste the money to move it...
A.K.A - Wonderboy
~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
1993 Nissan 200 SX
148 Kw - 250 NM @ 0.55 bar. 1.8T ATW
~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
1989 Toyota Corrola
63kw - 117nm 1.3- N/A
18.2 @118,4 Km - Rainbow Raceway
~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
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Phinx
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Posts: 720
Joined: Fri Oct 20, 2006 12:30 pm
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Location: Pretoria

Post by Phinx »

basically I think we are all stressing with the small stuff.

My Recirculation Valve is on the hot pipe because of piping constraints.
I know its not the best but it woks and I don't have the time or am I willing to waste the money to move it...
A.K.A - Wonderboy
~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
1993 Nissan 200 SX
148 Kw - 250 NM @ 0.55 bar. 1.8T ATW
~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
1989 Toyota Corrola
63kw - 117nm 1.3- N/A
18.2 @118,4 Km - Rainbow Raceway
~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
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