if you want a lot of noise, put a bypass valve on it (not the same as a normal blowoff valve)

 

What's the difference between a blow-off valve and a bypass valve?

 

p600b

 

How loud is the F1 compared to the D-1SC, I'm still waiting on my F1 to come, still 2 weeks out

 

I would honestly say they sound the same.

 

I have a p600b and it loud as hell, my friend has a d1 and its not near as loud as mine but a lot better blower than mine is.

 

im installing a V-2SQ with aftercooler right now(what a pain in the rear!). i know that its supposed to be real quiet but i definately want to hear it whistle.

are they really that quiet? idle and WOT?

 

If your exhaust isn't loud, you can hear a faint whistle at idle from an SQ. As soon as you leave idle, the whistle isn't audible.

Another vote for the S-trim Vortech. Noisy little bastard isn't it!

 

Can Anyone explain the differences here?

 

he has a blow off and bypass valve backwards...a blow off valve would be vented to atmosphere, and would be louder, but not recommended on a MAF equipped car because once you let off, the air that is getting "blown off" has already been accounted for by the MAF and has already compensated with fuel, and a rich condition will be had, and you will probably stall, or puff some smoke out the back. this is fine to use on a speed density system though, as the computer calculates fuel by the IAT and MAP sensor. it gives a more "ricey" sound...loudest BOV i can think of is the TurboXS RFL...its got an adjustable note, and i am about to put one on my car...not many FI cars in my area, and i love to watch the lil import kids eyes just blow up in their heads.

a bypass valve on the other hand, recirculates the air from the charge piping (piping after supercharger, and before the throttle body) back to the intake piping before the supercharger, and AFTER the MAF, this happens when vacuum is present. this is done so that all counted air stays in the system and you dont have the rich condition i referred to. they are both the same concept really.

 

man, my SQ is seriously super quiet! i can hear it some times like in a parking lot with small rpm changes if its quiet around.

my race flowmaster (6.5" long) was loud before, but with the forced air going to the motor......freakin loud and rowdy!!!!

 

Putting a Blowoff valve on a car with a MAF would be a problem unless you relocated the MAF after the BOV.. I have heard of some people putting the MAF on the pressure side anyhow. maybe put the maf in the inter cooler line and the BOV after the SC. youll just have to get a little creative and you will probably have to block off the stock bypass valve location. you would only have to cut the pipes and put a hose clamp around it to fit the maf by the way.. not much work at all!

 

I have heard the A-trim Vortech is the loudest. I have a S-trim on my race car and an A-trim on my daily driver and the A-trim is much louder. The gear whine is very noticeable. When I drive by people who dont know what it is yell at me that my car is screwed up.

 

My mom asked me what was wrong with my car when I took it over there I see people looking at me whenever I drive it like my car is about to blow up. I have had a couple of people tell me it sounded like a jet

 

We have a P600 and we have a little board with all the things that people say is wrong with it.
Fix that P/S pump........, the air conditioning is sure loud on that car.......,
Boy that thing must be hard on belts its slipping all the time..... etc etc.
Either the V1 s trim or the P600, both are loud.....