I got news for you Keith, 566 HP @ 7,800 is a kick ass "D" on one 4-bbl
carb. Don't think mine made that much. What did you wind up setting the
timing at?
John Beckett, LSR #1179, E/GCC
----- Original Message -----
From: "Keith Turk" <kturk@ala.net>
To: <land-speed@autox.team.net>
Sent: Saturday, August 05, 2000 12:44 AM
Subject: Dyno Results ( Long )
> Well went over to the Dyno and the Motor Lived.... Life is Grand once
> again..
>
> Didn't say it Breathed... Just said it Lived... Made 566hp at 7800 Rpm and
> ran out to 8400 before the 8800 Rpm Chip kicked in.... It's Standard for
the
> MSD plug in's to start kicking in Early.. about 3-400 Rpm in our case
> today....
>
> Bummer was the Motor Needed to make 630 to be competitive and We would be
> Well Short of that Number for a Gas Altered.... SOOOOO I guess we are a
Fuel
> Altered unless Uncle Dave Dalgren can work some of his Magic..
>
> What I learned today could fill a book.... I had my classic Late Start and
> didn't snag my Tools on the way out the door... causing me to use his...
BIG
> MISTAKE... as My Dyno Guy don't have Much in the way of Tools...
>
> and the second Part of what I learned is what I needed to know about the
Cam
> Shaft.... and Changes to the cam timing and Valve clearence.... Basically
we
> did Two Pulls... first one as a Base line the the second with a 4 degree
> change to the cam shaft.... started with the cam set at 106 and moved it
to
> 110....Both pulls were about Equal in Hp but the second had the Hp and
> Torque shorter in range.... and a Bit higher in the Rpm range.... the 106
> gave us a Really Broad HP curve the the 110 kinda shortened the curve a
> Ton....
>
> The Reason the 110 is important at all is that we came back home and
started
> studying the actual Valve Clearance at 10 before and After TDC.... what we
> found is that the 100 thousandths clearance we needed was avalible with
1.65
> rockers and a change of Push Rods... on Both Intake and Exhaust... with
the
> Cam at 110.... and we are currently running 1.5 rockers... This whole deal
> really looks like it wants more Cam then we have.... currently it's a .638
> lift and the 1.65's will make it a 699 lift..... which may make it
> competitive... sure would be nice to have a bunch more time to play with
> these things on a Dyno... it's just not going to happen anymore then the
> Rodeck is going to be ready...
>
> Okay enough for Now... I am TIRED... time to go to Bed and get some sleep
> before we swap out the Dyno Gear tomarrow.... K
>
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