X-Virus-Scanned: clean according to Sophos on Logan.com Return-Path: Received: from [64.129.170.194] (HELO VIRCOM1.fcdata.private) by logan.com (CommuniGate Pro SMTP 6.0c1) with ESMTP id 5720995 for flyrotary@lancaironline.net; Mon, 20 Aug 2012 21:18:29 -0400 Received-SPF: none receiver=logan.com; client-ip=64.129.170.194; envelope-from=cbarber@texasattorney.net Received: from FCD-MAIL06.FCDATA.PRIVATE (unverified [172.16.5.23]) by VIRCOM1.fcdata.private (Vircom SMTPRS 5.1.1024.13396) with ESMTP id for ; Mon, 20 Aug 2012 20:17:08 -0500 X-Modus-BlackList: 172.16.5.23=OK;cbarber@texasattorney.net=OK X-Modus-RBL: 172.16.5.23=Excluded X-Modus-Trusted: 172.16.5.23=NO X-Modus-Audit: FALSE;0;0;0 Received: from FCD-MAIL05.FCDATA.PRIVATE ([fe80::809d:a06e:5913:452e]) by FCD-MAIL06.FCDATA.PRIVATE ([fe80::697f:d6aa:b87:78d8%17]) with mapi id 14.01.0379.000; Mon, 20 Aug 2012 20:19:08 -0500 From: Chris Barber To: "flyrotary@lancaironline.net" Subject: Turbo question. Thread-Topic: Turbo question. Thread-Index: Ac1/OruqiYHD5DAOSWqXDtCSfkL6dg== Date: Tue, 21 Aug 2012 01:17:29 +0000 Message-ID: <64FB191C-558E-4611-9813-D35365DE1CEA@texasattorney.net> Accept-Language: en-US Content-Language: en-US X-MS-Has-Attach: X-MS-TNEF-Correlator: Content-Type: text/plain; charset="us-ascii" Content-ID: <8686F6E841D6F44D8E6860F12A70529A@FCDATA.PRIVATE> Content-Transfer-Encoding: quoted-printable MIME-Version: 1.0 As I have mentioned I have had what I think are incongruent readings regard= ing my manifold pressure (mp)and engine rpm. It seems I am getting quite lo= w mp as I add power to higher rpm.=20 I am not well versed in this area but my thought is that as I add power, ev= en with slight boost (currently using a 3 lb spring in my wastegate) eventu= ally my mp should raise a bit more.=20 Today I did some static test. I recorded engine RPM with the turbo hooked = up and recorded the mp at 1000 rpm increments. Then I removed the turbo plu= mbing from my intake and recorded the same info My results currently confus= e me.=20 With the turbo hooked up I am getting RPM. MP inches 2000 - 14.0 3000 - 15.5 4000 - 19.3 5000 - 21.6 5700 - 24.5 (topped out) With the turbo removed.=20 2000 - 15.8 3000 - 15.3 4000 - 19.7 5000 - 24.8 5833 - 29.8 Is this indicative of restriction in my plumbing? Perhaps in the inter cool= er? A dirty air filter? A bad pop off valve or a leak not allowing the air = pressure getting to the intake. Or???? I am uncertain what other permitters I need to check and provide. I am just= starting my diagnosis in my Phase One testing. I only have 1.6 hours in th= e air so far. I value ya'll's direction and input.=20 Heck, perhaps this is working properly but it just doesn't seem right/comfo= rtable.=20 Thanks folks.=20 Chris Barber Houston Velocity SE Rotary 13b turbo (?) :-)=20 Sent from my iPhone 4=