New 4.7L dyno numbers, 280 hp

From: Barret, Matt (MATT_BARRET@earthtech.com)
Date: Mon Jul 15 2002 - 09:53:07 EDT

I just got back from Carlisle Chrysler Nationals. I pulled the dyno in the
Mopar Muscle dyno shootout. This time I removed my Clutch fan and used a
short belt to bypass the alternator and the Power Steering pump. My new peak
numbers are as follows:

238 RWHP @ 4400
304 RWTQ @ 3600

Using a 15% drivetrain loss this equals
280 Crankshaft HP
350 Crankshaft TQ

This is a peak increase of 8 HP and 14 Ft lbs TQ
And a Max increase of 14 HP @ 4200 and 18 Ft. Lbs TQ @ 3200.
just from removing the fan and using the short belt.

I have a .xls spreadsheet available comparing my stock engine vs. current
engine with and without the fan removed and short belt, if anyone would like
to see it. The peak numbers don't do justice to what is actually gained
over stock.
email matt_barret@earthtech.com

MODS:
Mike Leach PCM, 72mm F&B TB, HO cams, HO intake, Flowmaster 3", gutted 3rd
cat, IAT adjuster, Homebrew air intake, Mobil 1, Clutch fan removed, Short
belt.

Matt Y2K-HEMI
'00 RC 4.7L 5spd 3.92
14.23 @ 94.49 (before recent mods

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