In my preparation for my s/c install I am seeing many variation in these.
In my application with a mass air flow sensor, you can't use a blow off valve vented to atmosphere b/c that air has been metered already. My understanding is that the correct way is to use the 'by-pass valve (which can be actually the same valve as the blow off valve but just have a hose connection instead of venting to atmosphere) and return the air to the intake side of the supercharger but after the MAF sensor as this sir has already been metered. I see many different plumbing setups with these valves.

Any comments or thoughts?

 

Your thinking is correct, if the maf is before the sc you need to route the bypass back to the intake somewhere between the maf sensor and the sc.

most bovs can be hooked up to run as a bypass

 

Backwash from the bypass needs to be considered, it will screw with the maf. Maf clocking is also a consideration.

Here's one:
http://forums.corral.net/forums/supe...-backwash.html

 

just run a blow thru MAF and vent it off

 

'Blow thru the mass and vent it off' - your computer will see the engine running rich b/c of the lost metered air that was vented off. I don't think that this method is recommended by any of the major players in the field. Where do you find this setup?

 

that's because you don't understand what I'm talking about, just like every other thread you've wasted peoples time on



IF you run your MAF post i/c (not in your case because you don't have one)

and you run the bypass/blow off valve prior to the MAF your motor won't ever run rich UNLESS you have a **** poor tune

 

What are you talking about "MAF post i/c (not in your case because you don't have one)?

I have a MAF, no intercooler.

So you are talking about running a setup the would flow--
air cleaner-->supercharger-->BOV/by pass valve-->MAF-->throttle body-->intake

How many systems are out there like this? How many systems have you tuned?

"that's because you don't understand what I'm talking about, just like every other thread you've wasted peoples time on"

Be careful who you insult here, Maybe you need to reread the forum rules.

 

As long as the maf is after the bov you'll be fine. The bov doesn't have to be before the ic. Mine is on my truck but the bov on my stang is about 10” before the maf. Both are after the ic

 

You guys are confusing me, I better write it down so I can gather my thoughts. lol

Draw thru - air filter - maf - s/c - IC - tb.....bypass is recirculated back into the s/c ahead of the maf

Blow thru - air filter - s/c - IC - maf - tb.......bypass vents to atmosphere

In the draw thru config, the bypass venting ahead of the maf can disturb the maf, so having that air enter back into the s/c as close to the impeller is important.

 

I'm done with this joker...

 

Where is the Valve and where does it return?

Draw thru - air filter - maf - BYPASS RE-ENTRY - s/c - IC - BYPASS VALVE - tb.....bypass is recirculated back into the s/c AFTER the maf far enough away as to not disture it's airflow

Blow thru - air filter - BYPASS RE-ENTRY - s/c - IC - BLOW OFF(to atmosphere) or BYPASS VALVE - maf - tb.......Blow off vents to atmosphere, Bypass returns to before S/C, both located far enough away from the MAF as to not disturb it's air.

Is that any clearer? Does that make sense?

 

That's mature. Thanks for your input.

 

There is no bypass reentry on a blow through setup

 

Are we talking about race setup or daily drivers?

 

Doesn't matter