Well, the only reason the hp fell off was because dummy me let out at 5000,
it was still pulling hard, after I saw that, I started shifting at 5300
instead of 5000 and thats when I ran my best time of 14.74. But I will
agree, top end does hurt the truck at some point cause my 1/8 mile time of
9.19 should be about 14.5 or better but it falls off at the end of the
track, I think a good exhaust will really help this engine out. That is my
next step, a good exhaust, then back to the dyno (and I won't let out this
time)!! Chris, go for the exhaust work, I run consistent 90-92 mph.
__________________________________
Matt -- Mechanicsville, VA Y2K-HEMI
`00 Sport Plus 4.7L 5spd. 9 1/4 3.92 LSD
RC 2x4 Homemade intake & K&N open element,
Traction Bars, Spring clamps
BEST 1/4 14.74 @ 90.72 MPH
BEST 1/8 9.19 @ 72.58 mph
ŻŻŻŻŻŻŻŻŻŻŻŻŻŻŻŻŻŻŻŻŻŻŻŻŻŻŻŻŻŻŻŻŻŻŻŻŻŻŻŻŻ
-----Original Message-----
From: Bob Tom [mailto:tigers@bserv.com]
Sent: Saturday, April 08, 2000 6:47 PM
To: dakota-truck@buffnet.net
Subject: Re: DML: need top end
At 01:33 PM 4/8/00 EDT, you wrote:
>what can i do to get top end my 00 CC 4.7 5 speed takes off like a bat at
of
>hell all the way through 3rd but has no top end I run a good 1/4 mile at
15.2
>stock with a flowmaster but i run at only 88 mph my friend run the same
time
>at 91 what can i do
Hey, Chris.
If you look at Matt's dyno results in table format, it seems that there's
an early drop in hp and torque. Kinda confirms your feeling of 'no top
end'.
Never really looked into overhead cam setups but if they work on the same
principles the traditional cam motors, the only way that I can think
of is cam replacement.
Intake ---> engine ---> Exhaust
take in more air mods ---> pass more air through mods ----> exit more
air mods
(ported tb, intake manifold) (cam replacement) (headers,
exhaust)
Aftermarket choices currently limited or nil due to newness of the 4.7L.
Bob. Southern Ontario, Canada.
'97 Dakota CC Sport, FR, 5.2L, 3.55 SG, auto.
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