X-Virus-Scanned: clean according to Sophos on Logan.com Return-Path: Received: from imr-da05.mx.aol.com ([205.188.105.147] verified) by logan.com (CommuniGate Pro SMTP 5.3.8) with ESMTP id 4388759 for flyrotary@lancaironline.net; Sun, 11 Jul 2010 11:33:29 -0400 Received-SPF: pass receiver=logan.com; client-ip=205.188.105.147; envelope-from=Lehanover@aol.com Received: from imo-ma02.mx.aol.com (imo-ma02.mx.aol.com [64.12.78.137]) by imr-da05.mx.aol.com (8.14.1/8.14.1) with ESMTP id o6BFWogl027180 for ; Sun, 11 Jul 2010 11:32:50 -0400 Received: from Lehanover@aol.com by imo-ma02.mx.aol.com (mail_out_v42.9.) id q.d25.6f9d7294 (43978) for ; Sun, 11 Jul 2010 11:32:48 -0400 (EDT) Received: from magic-m19.mail.aol.com (magic-m19.mail.aol.com [172.21.136.208]) by cia-dd04.mx.aol.com (v129.4) with ESMTP id MAILCIADD043-abca4c39e420274; Sun, 11 Jul 2010 11:32:48 -0400 From: Lehanover@aol.com Message-ID: <2f541.76dd6763.396b3e20@aol.com> Date: Sun, 11 Jul 2010 11:32:48 EDT Subject: Re: [FlyRotary] Re: High test and turbos To: flyrotary@lancaironline.net MIME-Version: 1.0 Content-Type: multipart/alternative; boundary="part1_2f541.76dd6763.396b3e20_boundary" X-Mailer: AOL 9.0 VR sub 5203 X-AOL-ORIG-IP: 173.88.9.178 X-AOL-IP: 172.21.136.208 X-Spam-Flag:NO X-AOL-SENDER: Lehanover@aol.com --part1_2f541.76dd6763.396b3e20_boundary Content-Type: text/plain; charset="US-ASCII" Content-Transfer-Encoding: 7bit In a message dated 7/11/2010 10:01:52 A.M. Eastern Standard Time, keltro@att.net writes: Lynn, What would be your educated guess for the ignition advance to avoid detonation for a side housing intake 13B (intercooled to <130 f ) , 9.4 to 1 comp rotors , 87 octane (no alcohol) and turbo boost limited to 10 in/hg (5 psi) ?? .................. Thanks Kelly Troyer "Dyke Delta"_13B ROTARY Engine "RWS"_RD1C/EC2/EM2 "Mistral"_Backplate/Oil Manifold We raced for years on 20 degrees total advance in a NA engine. So any turbo would need less than that when the boost is up. Off idle where there is no boost you want the highest advance. The Renesis is mapped to show 44 degrees on coast down closed throttle. Very low cylinder filling and lean idle mixture needs more time to burn. If you join up to the Nopistons list and go to Dyno charts and ECU, you can download maps from dozens of known brands of controllers, and the readers send in their maps and dyno charts. Ask any question you like. Lots of turbo people to talk to.The kids meet at chassis dynos on Saturdays to race their turbo-charged Mazdas. So you can drive a 500 HP Mazda to work through the week and "Race" it on weekends. I do not tune turbo engines, so have no direct data. On real high boost the kids might be down to 10 degrees leading and 3 or 4 degrees trailing. Racing beat likes no split at all for high boost. The split timing starts to look like detonation. Turning off the trailing can hold off real detonation, so some folks shut of the trailing when the Nitrous is flowing. "An Ignition away from the spark plug after the planned ignition event" I would go with Racing Beat on this and run no split. Lynn E. Hanover --part1_2f541.76dd6763.396b3e20_boundary Content-Type: text/html; charset="US-ASCII" Content-Transfer-Encoding: quoted-printable

In a message dated 7/11/2010 10:01:52 A.M. Eastern Standard Time,=20 keltro@att.net writes:

Lynn,

What would be your educated guess for=20 the ignition advance to avoid detonation
for a side= =20 housing intake 13B (intercooled to <130 f ) , 9.4 to 1 comp roto= rs ,=20 87

octane (no alcohol) and turbo boost limited to 10 in/hg (5 psi= )=20 ?? ..................

Thanks

Kelly Troyer
"Dyke Delta"_13B ROTARY=20 Engine
"RWS"_RD1C/EC2/EM2
"Mistral"_Backplate/Oil Manifold=20

We raced for years on 20 degrees total advance in a NA engine. So any= turbo=20 would need less than that when the boost is up. Off idle where there= is no=20 boost you want the highest advance. The Renesis is mapped to show 44 degre= es on=20 coast down closed throttle.

Very low cylinder filling and lean idle mixture needs more time to bu= rn.=20

If you join up to the Nopistons list and go to Dyno charts and ECU,= you can=20 download maps from dozens of known brands of controllers, and the readers= send=20 in their maps and dyno charts. Ask any question you like. Lots of turbo pe= ople=20 to talk to.The kids meet at chassis dynos on Saturdays to race their=20 turbo-charged Mazdas.

So you can drive a 500 HP Mazda to work through the week and "Race"= it on=20 weekends.

I do not tune turbo engines, so have no direct data. On real high boo= st the=20 kids might be down to 10 degrees leading and 3 or 4 degrees trailing. Raci= ng=20 beat likes no split at all for high boost. The split timing starts to look= like=20 detonation. Turning off the trailing can hold off real detonation, so some= folks=20 shut of the trailing when the Nitrous is flowing.

"An Ignition away from the spark plug after the planned ignition=20 event"

I would go with Racing Beat on this and run no split.

Lynn E. Hanover

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