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 Post subject: PVCR blocking
 Post Posted: Mon Jun 11, 2012 5:21 am 
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I didn't do any racing this past weekend as it rained :- again.. So I am going to pull the
metering blocks off and plug the PVCR holes with a set screw and see what happens.
It should be easy with the QF blocks as there already taped..
Think it will make any difference with cyd to cyd EGT's?

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 Post subject: Re: PVCR blocking
 Post Posted: Mon Jun 11, 2012 6:08 am 
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Barry,
I'm not sure why you would want to remove a whole circuit of fuel from your combo?


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 Post subject: Re: PVCR blocking
 Post Posted: Mon Jun 11, 2012 6:24 am 
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No power valves #-o Not sure what your saying??? I am only plugging the main wells from each other. Not removing any circuits..Trying to keep them independent from each other is all..

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 Post subject: Re: PVCR blocking
 Post Posted: Sat Jun 16, 2012 7:20 pm 
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Barry,

If you got QFT metering blocks like I have,the pvcr is changeable. It uses the same bleeds as the e-hole. I put blanks in mine and a plug.

Bob J


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 Post subject: Re: PVCR blocking
 Post Posted: Sat Jun 16, 2012 9:58 pm 
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So you saying that a Power Valve block off plug is not enough? You have to plug the PVCR orifice?


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 Post subject: Re: PVCR blocking
 Post Posted: Sat Jun 16, 2012 10:50 pm 
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Scott I talked about this with Bruce..Completely isolate the main wells from each other by plugging the PVCR

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 Post subject: Re: PVCR blocking
 Post Posted: Sat Jun 16, 2012 11:08 pm 
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I saw some stuff on this also and it "kinda" makes sense to a point as if one booster has more signal than the other then it "might" draw fuel from the other mainwell through the open PVCRs.

Even if this is not an issue, since most of us tap the PVCR anyway then putting a solid screw in there won't hurt anything. ;-)

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 Post subject: Re: PVCR blocking
 Post Posted: Sun Jun 17, 2012 7:14 am 
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I'm game. I didn't realize they were connected.


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 Post subject: Re: PVCR blocking
 Post Posted: Sun Jun 17, 2012 8:13 am 
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Ken the quick fuel blocks are already taped so it's just a set screw and ready to go...
I have cyd's # 2nd 4 that are cooler than the rest and have a smaller jet in that side of the carb to try and help so what I am going to do is plug them and see what happens...

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 Post subject: Re: PVCR blocking
 Post Posted: Sun Jun 17, 2012 9:35 am 
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Scott Smith wrote:
I'm game. I didn't realize they were connected.


Me either but that plug only fills the hole to keep fuel out. It does nothing to separate the two mainwells, which share that cavity. Now if you have a PV in, then that chamber has fuel in it when that valve is open so there's not an issue. The only time there "may" be an issue is before the PV opens during part throttle. Since we're WFO from the hit then that becomes a non issue.

In a perfect world, booster signal would be the same all around but we know how that works out, don't we.

I think it was Nomad and jmark that came up with this during some testing they were doing recently.

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