I'm not gonna argue that Jack. But can you agree with me on this, my truck,
with one modification (homemade air intake) pulled 285 to the RW's (no
question there), If you figure 15% loss with the manual trans. (being
conservative) that would be approx. 335 TQ at the FLYWHEEL , correct?
335 X .85 = 284.75 , Ok, its rated at 295, that means there is 40 ft
lbs, unaccounted for, YES some came from my modification, but not 40 ft
lbs!! probably not even 20 ft lbs, So as I have stated before, the 295
figure is low, I would say more along the lines of 320 ish (stock flywheel
TQ), there is not a 50 ft lbs difference in the two engines. I am not
disputing the fact that the bolt ons for the 5.9L yield more power than the
same piece on the 4.7L, I will soon find out the truth to this theory, I
have already installed the Flowmaster Cat back 3" system and it yield only
1.9 rwhp, and NO torque gain, that is some evidence of this theory, but not
enough to totally justify it, I have the Mopar Computer on order, and I am
also considering the Borla headers, each piece will get dyno'd, and I will
report the honest results.
Also, interesting that Sam's BONE STOCK '00 RT ran a 204 @ 270 ft lbs. if
you use the 20-22% loss you will get right around 345 ft lbs at the
flywheel. and probably around 260 hp at the flywheel, Very impressive Sam!
-----Original Message-----
From: Jack Hilton [mailto:hemi@charter.net]
Sent: Wednesday, September 06, 2000 8:24 AM
To: dakota-truck@buffnet.net
Subject: Re: DML: R/T difference Re: Sam
Matt -
Unless you have two identically equipped trucks with the same rear, the same
gears, and the same tranny, only one 4.7 and one 5.9, then neither you or I
can look to anything else other than the factory rated numbers.
Jack
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