nozzle before or after the BPV?

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Old 11-16-2008   #1
doc
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nozzle before or after the BPV?

Well I have seen others with Mazdaspeed 3's tap before the BPV (running full recirc) on the cold pipe just after the TMIC.. However i can squeeze it in just after (about an inch) the bpv. This is where i prob will install it (m3 nozzle).. should I be worried about anything recirculating back into the turbo inlet? Even if it is downstream the bypass valve, i dare say with it being so close to it, there may still be some water/meth recirculating.

Also as far as I understand there is no worreis with methylated spirits (Denatured alcohol) insted of meth? in a 50/50 water mix?

Thanks in advance

Doc
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Old 11-16-2008   #2
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Re: nozzle before or after the BPV?

If you can get it in after the BPV it's probably a better location, but if not the amount the goes back to the turbo will be small and should not have any negative effects anything. Remember many people have a D01 or DO2 nozzle located pre-turbo. The airflow going past your BPV should keep anything from going back the other way, remember your talking hundreds of CFM of air a minute in a small space.

Denatured alcohol just has less 02 then Methanol and slightly lower octane rating as well as a higher viscosity of water but both mixes work almost equally as well. Methanol can be hard to come by for some. Especially overseas.
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Old 11-16-2008   #3
doc
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Re: nozzle before or after the BPV?

Thanks for the reply mate.

Meth is hard to come by in Australia

So running the denatured Alc in a 50/50 mix is still the way to go?

Open to suggestions.



Thanks again

Doc

Last edited by doc; 11-17-2008 at 04:46 AM.
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Old 11-17-2008   #4
doc
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Re: nozzle before or after the BPV?

Also, two other questions... does the pump have to be installed under the reservoir? Or will it still work if its a around a foot above it? And if the car is running 18.5 PSI boost, what would you recommend to trigger the stage one kit at? 13-14psi maybe? appreciate the input

Cheers again

Doc

Last edited by doc; 11-17-2008 at 07:30 AM.
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Old 11-17-2008   #5
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Re: nozzle before or after the BPV?

Originally Posted by doc View Post
Also, two other questions... does the pump have to be installed under the reservoir? Or will it still work if its a around a foot above it? And if the car is running 18.5 PSI boost, what would you recommend to trigger the stage one kit at? 13-14psi maybe? appreciate the input

Cheers again

Doc
The pump can be put in any position and in any location in a full sized car, They are designed to pull 8ft strait up.

As far as set points every car is different, But I would start at around 10psi and go from there.
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