X-Virus-Scanned: clean according to Sophos on Logan.com Return-Path: <13brv3@bellsouth.net> Received: from imf22aec.mail.bellsouth.net ([205.152.59.70] verified) by logan.com (CommuniGate Pro SMTP 4.3c5) with ESMTP id 930975 for flyrotary@lancaironline.net; Tue, 03 May 2005 10:40:46 -0400 Received-SPF: pass receiver=logan.com; client-ip=205.152.59.70; envelope-from=13brv3@bellsouth.net Received: from rd ([65.6.194.9]) by imf22aec.mail.bellsouth.net (InterMail vM.5.01.06.11 201-253-122-130-111-20040605) with ESMTP id <20050503144001.CQCS2058.imf22aec.mail.bellsouth.net@rd> for ; Tue, 3 May 2005 10:40:01 -0400 From: "Russell Duffy" <13brv3@bellsouth.net> To: "Flyrotary List" Subject: Static MAP readings? Date: Tue, 3 May 2005 09:40:11 -0500 Message-ID: <030a01c54fee$0292c0f0$6101a8c0@rd> MIME-Version: 1.0 Content-Type: multipart/alternative; boundary="----=_NextPart_000_030B_01C54FC4.19BCB8F0" X-Priority: 3 (Normal) X-MSMail-Priority: Normal X-Mailer: Microsoft Outlook, Build 10.0.6626 Importance: Normal X-MimeOLE: Produced By Microsoft MimeOLE V6.00.2900.2527 This is a multi-part message in MIME format. ------=_NextPart_000_030B_01C54FC4.19BCB8F0 Content-Type: text/plain; charset="us-ascii" Content-Transfer-Encoding: quoted-printable Greetings, =20 I'm still a bit concerned about the static MAP readings that I'm = getting. This isn't something that just happened, but rather has been going on = for at least the life of this particular intake setup. At on point, I was = almost convinced that the TWM TB ports were just not providing an accurate = reading, but now I'm almost convinced that they are. Has anyone measured MAP at = WOT static? =20 =20 I got the following results in a few tests the other day: =20 1- 27.6" This was with my normal configuration, which is an inlet = inside the radiator duct, feeding a 3" SCEET hose, to a fiberglass duct that = covers the two barrels of a TWM TB. =20 =20 2- 26.3"-27.0" (erratic probably due to prop blast across the inlet) = This was with the SCEET hose removed from the TB fiberglass duct. =20 =20 3- 27.4" This is with a fairly small K&N cone filter on the inlet to = the TB duct where the SCEET hose normally goes.=20 =20 From this, I see that the K&N filter seem to have no significant effect = on the MAP, which is good, though I still don't know if I can fit it in = there. =20 I've got some numbers from Ed, and also have an idea what Tracy runs, = but those have always been in-flight, WOT, low level runs. I'm going to try that at about 1000 ft at some point, but would also like to know what = folks run static. Anyone got any readings? =20 Thanks, Rusty (not willing to give away free power) ------=_NextPart_000_030B_01C54FC4.19BCB8F0 Content-Type: text/html; charset="us-ascii" Content-Transfer-Encoding: quoted-printable Message
Greetings,
 
I'm still a bit = concerned=20 about the static MAP readings that I'm getting.   This isn't = something=20 that just happened, but rather has been going on for at least the life = of this=20 particular intake setup.  At on point, I was almost convinced that = the TWM=20 TB ports were just not providing an accurate reading, but now I'm almost = convinced that they are.  Has anyone measured MAP at WOT = static? =20
 
I got the = following results=20 in a few tests the other day:
 
1- 27.6"  =20 This was with my normal configuration, which is an inlet inside the = radiator=20 duct, feeding a 3" SCEET hose, to a fiberglass duct that covers the two = barrels=20 of a TWM TB. 
 
2- 26.3"-27.0" = (erratic=20 probably due to prop blast across the inlet)   This was with = the SCEET=20 hose removed from the TB fiberglass duct. 
 
3- = 27.4"   =20 This is with a fairly small K&N cone filter on the inlet to the TB = duct=20 where the SCEET hose normally goes.
 
From this, I = see that the=20 K&N filter seem to have no significant effect on the MAP, which is = good,=20 though I still don't know if I can fit it in there.  =
 
I've got some = numbers from=20 Ed, and also have an idea what Tracy runs, but those have always been = in-flight,=20 WOT, low level runs.  I'm going to try that at about 1000 ft at = some point,=20 but would also like to know what folks run static.  Anyone got any=20 readings?
 
Thanks,
Rusty (not = willing to give=20 away free power)
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