X-Virus-Scanned: clean according to Sophos on Logan.com Return-Path: Sender: To: lml@lancaironline.net Date: Sun, 04 May 2008 00:13:18 -0400 Message-ID: X-Original-Return-Path: Received: from imo-m14.mx.aol.com ([64.12.138.204] verified) by logan.com (CommuniGate Pro SMTP 5.2.2) with ESMTP id 2881117 for lml@lancaironline.net; Thu, 01 May 2008 23:48:28 -0400 Received-SPF: pass receiver=logan.com; client-ip=64.12.138.204; envelope-from=Sky2high@aol.com Received: from Sky2high@aol.com by imo-m14.mx.aol.com (mail_out_v38_r9.3.) id q.ce3.2d9cddf3 (41809) for ; Thu, 1 May 2008 23:47:40 -0400 (EDT) From: Sky2high@aol.com X-Original-Message-ID: X-Original-Date: Thu, 1 May 2008 23:47:40 EDT Subject: Re: [LML] Re: Lightspeed Plasma III in Performance Engine X-Original-To: lml@lancaironline.net MIME-Version: 1.0 Content-Type: multipart/alternative; boundary="-----------------------------1209700060" X-Mailer: Unknown sub 34 X-Spam-Flag: NO -------------------------------1209700060 Content-Type: text/plain; charset="US-ASCII" Content-Transfer-Encoding: 7bit Tom, One of the benefits of a stronger spark is the ability to cross a bigger gap. The fire across the bigger gap provides a greater area for ignition of the mixture. Massive electrode spark plugs are of no great benefit (Iridium aircraft fine wire plugs have very small electrodes) in that the weak spark from a mag requires a small gap (.016 to .018) as opposed the .032 gap (.028 to .036, depending) on the Iridium moped plug that I use with the Lightspeed. Remember that massive electrode plugs had to be gapped again after some use because of erosion of the electrode. Another benefit of an Electronic Ignition is the ability to keep the spark going thru maybe 20 or 30 degrees of crank rotation - This allows for a higher probability of ignition of a non-ideal mixture sometime in that span, even if the consequent event timing might suffer a bit. Certain mags (starts with S and ends with K) are known to experience a fair percentage of misfires at the plugs even though the observer can't detect that happening. No point in discussing another archaic device - mechanical points for spark distribution. One of the weaknesses of the LASAR system I once used was that the aircraft plugs had to have the smaller gap, even when electronically fired, because the backup was reversion to magnetos. What is plug fouling - goop buildup that shorts the plug? Is that easier to occur with tight gaps? Or, is it just because the weak spark can't make the jump if the plug is not pristine? If the plug fires every cycle, it should stay clean. Yep, the systems are different. The results are not misleading. Aircraft plugs foul more easily and bottom plugs have a greater opportunity to become fouled. Old Grayhawk Perhaps you detect a bit of disdain for the systems widely used last century. In a message dated 5/1/2008 9:58:06 P.M. Central Daylight Time, tom.gourley@verizon.net writes: Doesn't Lightspeed use an automotive type plug instead of the massive electrode plugs typically used with mags? I was just wondering if the automotive plug is less prone to fouling. The Lightspeed probably does fire through better, but unless the plug configuration is the same on the Lightspeed and the mag it seems like the results could be a little misleading. **************Wondering what's for Dinner Tonight? Get new twists on family favorites at AOL Food. (http://food.aol.com/dinner-tonight?NCID=aolfod00030000000001) -------------------------------1209700060 Content-Type: text/html; charset="US-ASCII" Content-Transfer-Encoding: quoted-printable

Tom,

One of the benefits of a stronger spark is the ability to cross a=20 bigger gap. The fire across the bigger gap provides a greater area for= =20 ignition of the mixture. Massive electrode spark plugs are of no great= =20 benefit (Iridium aircraft fine wire plugs have very small electrodes) in tha= t=20 the weak spark from a mag requires a small gap (.016 to .018) as opposed the= =20 .032 gap (.028 to .036, depending) on the Iridium moped plug that= I=20 use with the Lightspeed. Remember that massive electrode plugs had to=20= be=20 gapped again after some use because of erosion of the electrode.

Another benefit of an Electronic Ignition is the ability to keep the sp= ark=20 going thru maybe 20 or 30 degrees of crank rotation - This allows for a= =20 higher probability of ignition of a non-ideal mixture sometime in that=20 span, even if the consequent event timing might suffer a bit. Cer= tain=20 mags (starts with S and ends with K) are known to experience a=20 fair percentage of misfires at the plugs even though the observer=20 can't detect that happening.

No point in discussing another archaic device - mechanical points for s= park=20 distribution.

One of the weaknesses of the LASAR system I once used was that the= =20 aircraft plugs had to have the smaller gap, even when electronically fired,=20 because the backup was reversion to magnetos.

What is plug fouling - goop buildup that shorts the plug? Is that= =20 easier to occur with tight gaps? Or, is it just because the weak s= park=20 can't make the jump if the plug is not pristine? If the plug fires eve= ry=20 cycle, it should stay clean.

Yep, the systems are different. The results are not misleading.&n= bsp;=20 Aircraft plugs foul more easily and bottom plugs have a greater opportunity=20= to=20 become fouled.

Old Grayhawk

Perhaps you detect a bit of disdain for the systems widely used last=20 century.

In a message dated 5/1/2008 9:58:06 P.M. Central Daylight Time,=20 tom.gourley@verizon.net writes:

<= FONT=20 style=3D"BACKGROUND-COLOR: transparent" face=3DArial color=3D#000000 size= =3D2>

Doesn't Lightspeed use an automotive type plug instead of the massive= =20 electrode plugs typically used with mags? I was just wondering if th= e=20 automotive plug is less prone to fouling. The Lightspeed probably do= es=20 fire through better, but unless the plug configuration is the same on the=20 Lightspeed and the mag it seems like the results could be a little=20 misleading.

Wondering what's for Dinner Tonight? Get new twi= sts on family favorites at AOL Food.

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