Official Procharger Build Thread
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From: mile high denver co
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From: ridgecrest, ca
Ok, but im not going to like it. So I thought that a BOV would be ok for this setup. But it turns out its no good. I started the car with the piping and everthing and the car would barly run. Then I looked @ the boost gauge and found it was making a pound of boost or so. Thats great if you are trying to launch the car but @ idle its a no no. So I called a friend a procharger and talk for a long time and I bought one of there bypass valves after we talked. Your going to love this though. There will be no lag @ all. The bypass valve will be blowing the air to the world and the when it shuts it will be all the air that its going to make @ that rpm. So the supercharger will be spining like it would be in are roots and it will shut the bypass valve just like are roots. And you will have instint boost just like are root but better of course because theres a crap more of it.
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From: Az
Ok, but im not going to like it. So I thought that a BOV would be ok for this setup. But it turns out its no good. I started the car with the piping and everthing and the car would barly run. Then I looked @ the boost gauge and found it was making a pound of boost or so. Thats great if you are trying to launch the car but @ idle its a no no. So I called a friend a procharger and talk for a long time and I bought one of there bypass valves after we talked. Your going to love this though. There will be no lag @ all. The bypass valve will be blowing the air to the world and the when it shuts it will be all the air that its going to make @ that rpm. So the supercharger will be spining like it would be in are roots and it will shut the bypass valve just like are roots. And you will have instint boost just like are root but better of course because theres a crap more of it.
Are you going to pipe the bypass valve into the intake track before the blower so the bypassed air will just get sucked back into the blower?
what about proflo BOV? thats odd you're having trouble with it alot of other cars run BOV's on prochargers...i'm thinking about running the proflow procharger BOV it has a nice sound and pretty stealth
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From: Az
http://www.autospeed.com/cms/A_1878/article.html
The immediately noticeable result was that there was much less pressure gauge needle movement when backing off the throttle sharply - you could still get the before-compressor pressure gauge to dance, but only when going abruptly from full throttle to zero throttle on full boost. In more normal throttle lifts, the gauge showed that the pressure waves were much reduced.
Getting off and then back onto the throttle showed a slightly quicker boost response as well, although it's not something that's going to make a huge difference to on-road performance times.
Testing of the valve showed that at idle the BOV was open - that is, there was sufficient manifold vacuum that the valve was recirculating at idle. Because it is a recirculating valve this doesn't cause any problems - all combustion air is still both metered and filtered. (Most factory and non-adjustable aftermarket BOVs are open at idle.) However, this characteristic has some implications for the speed with which boost will rise. If the BOV is open for even a tiny amount of the time as the turbo spools up, the rate of boost increase will be slowed as boost is first recirculated.
And so it proved. Measuring the time taken for boost to reach 0.3 Bar (4.4 psi) showed that with the BOV in action, the average of 3 runs was 3.1 seconds, and without it the average was 3.0 seconds. However, that's a minimal change in most people's terms.
The immediately noticeable result was that there was much less pressure gauge needle movement when backing off the throttle sharply - you could still get the before-compressor pressure gauge to dance, but only when going abruptly from full throttle to zero throttle on full boost. In more normal throttle lifts, the gauge showed that the pressure waves were much reduced.
Getting off and then back onto the throttle showed a slightly quicker boost response as well, although it's not something that's going to make a huge difference to on-road performance times.
Testing of the valve showed that at idle the BOV was open - that is, there was sufficient manifold vacuum that the valve was recirculating at idle. Because it is a recirculating valve this doesn't cause any problems - all combustion air is still both metered and filtered. (Most factory and non-adjustable aftermarket BOVs are open at idle.) However, this characteristic has some implications for the speed with which boost will rise. If the BOV is open for even a tiny amount of the time as the turbo spools up, the rate of boost increase will be slowed as boost is first recirculated.
And so it proved. Measuring the time taken for boost to reach 0.3 Bar (4.4 psi) showed that with the BOV in action, the average of 3 runs was 3.1 seconds, and without it the average was 3.0 seconds. However, that's a minimal change in most people's terms.
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From: ridgecrest, ca
Im going to run the bypass air just to the atmosphere. It will make for cooler intake charges and less piping ect. Also it will bypass before the maf so no rich running problem ect.
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From: mile high denver co
but with prochargers BOV he should be set!
All in all This kit is coming together nicely!
i am very excited!
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From: mile high denver co
so even with the pipe hanging off it was not giving the vacuum it needed, talk about to much boost LOL
so he should have it all ironed out this week fo sho!
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From: mt kisco,ny
that CFM coming from the C-1 was so much he disconnected the BOV all to gether so there was a whole in the piping and it was still boosting....
so even with the pipe hanging off it was not giving the vacuum it needed, talk about to much boost LOL
so he should have it all ironed out this week fo sho!
so even with the pipe hanging off it was not giving the vacuum it needed, talk about to much boost LOL
so he should have it all ironed out this week fo sho!
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From: USAG Stuttgart, GER
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From: Indiana
that CFM coming from the C-1 was so much he disconnected the BOV all to gether so there was a whole in the piping and it was still boosting....
so even with the pipe hanging off it was not giving the vacuum it needed, talk about to much boost LOL
so he should have it all ironed out this week fo sho!
so even with the pipe hanging off it was not giving the vacuum it needed, talk about to much boost LOL
so he should have it all ironed out this week fo sho!
3" Exhaust!!!! 3" Exhaust!!!!!!