[Date Prev][Date Next][Thread Prev][Thread Next][Date Index][Thread Index]
Re: Way OT, now cam Q ( was EGR Q's (was: Fuel Econ and Hiway Mode))
The LS1 Corvette engine does not use EGR either. The exhaust lobe closes
early to create an EGR effect. This also results in a lobe seperation of
116 degrees. The C/F LS1 has a different cam and it uses EGR.
Rich V.
ate: Tue, 10 Oct 2000 21:35:12 -0400
From: Shannen Durphey <shannen@grolen.com>
Subject: Re: Way OT, now cam Q ( was EGR Q's (was: Fuel Econ and >Hiway
Mode))
< Re: Way OT, now cam Q ( was EGR Q's (was: Fuel Econ and Hiway >Mode))LT4
stock cam = no rumpity rump.
LT4 "Hot" cam = rumpity rump.
Sideline question:
LT4 cam does not have much valve overlap. -1 degree measured at
.050". What causes the "rumpity" idle on a small overlap cam?
Shannen
Andrew Mattei wrote:
Best way to go? Ditch the factory EGR and go with a rumpity cam that >has
enough overlap to have "built in" EGR. =8) Heck, it was good enough >for
LT4 Corvettes. ;)
Andrew (ducking from the stones about to be thrown)
With a rumptiy cam of my very own. :)
----------------------------------------------------------------------------
To unsubscribe from gmecm, send "unsubscribe gmecm" (without the quotes)
in the body of a message (not the subject) to >majordomo@lists.diy-efi.org
Date: Wed, 11 Oct 2000 07:11:32 -0400
From: David Cooley <n5xmt@triad.rr.com>
Subject: Re: Way OT, now cam Q ( was EGR Q's (was: Fuel Econ and >Hiway
Mode))
At 09:35 PM 10/10/2000 -0400, you wrote:
LT4 stock cam = no rumpity rump.
LT4 "Hot" cam = rumpity rump.
Sideline question:
LT4 cam does not have much valve overlap. -1 degree measured at
.050". What causes the "rumpity" idle on a small overlap cam?
Exhaust dilution... Lean mixture
lobe separation plays a big part even without a large overlap.
_________________________________________________________________________
Get Your Private, Free E-mail from MSN Hotmail at http://www.hotmail.com.
Share information about yourself, create your own public profile at
http://profiles.msn.com.
----------------------------------------------------------------------------
To unsubscribe from gmecm, send "unsubscribe gmecm" (without the quotes)
in the body of a message (not the subject) to majordomo@lists.diy-efi.org