At what rpm is Peak HP for a 5.0 HO in a stock '92 GT?

Fox Body · 10-26-2003, 01:26 AM

Just wondering.........................

At what rpm is my stock '92 GT's 5.0 HO motor's hp peak? Anyone got a pic that shows the hp and torque curves for this (like a factory dyno graph)? Tach reads yellow at ~4500 and redline at 6000. Where should I be shifting at if I got 2.73s behind a stock motor?

stang_racer20 · 10-26-2003, 04:42 PM

4500 is wear the engine makes peak, so given a few mods, somwhere between 4500 and 5000 shift point.

Rev · 10-26-2003, 04:56 PM

You should shift at 400-500 after peak HP for best et's.

Rev

Fox Body · 10-26-2003, 07:37 PM

sounds good. Thanks, guys.

the69dr · 10-26-2003, 08:47 PM

A shop out of Madison, WI called performance plus, they race anything from SHO's, to Lightnings, to 10.5" Outlaw cars etc. say a complete stock fuel injected motor should be shifted at 5200.

Adam

stang_racer20 · 10-26-2003, 10:22 PM

Quote:

Originally posted by the69dr
A shop out of Madison, WI called performance plus, they race anything from SHO's, to Lightnings, to 10.5" Outlaw cars etc. say a complete stock fuel injected motor should be shifted at 5200.

Adam

hey man where u from. i live near mad town

10-26-2003, 01:26 AM	#1
Fox Body Mustang Maniac Join Date: Sep 2000 Location: GA, U.S.A Posts: 2,266	At what rpm is Peak HP for a 5.0 HO in a stock '92 GT? Just wondering......................... At what rpm is my stock '92 GT's 5.0 HO motor's hp peak? Anyone got a pic that shows the hp and torque curves for this (like a factory dyno graph)? Tach reads yellow at ~4500 and redline at 6000. Where should I be shifting at if I got 2.73s behind a stock motor? __________________ 351W-powered 1979 Ford Mustang Ghia notchback '79 Video @ Idle Stock 5.8L under 4" cowl 'glass hood, C4 w/ Transgo shift kit, Holley 750 cfm, Edelbrock Performer RPM intake; Fluidyne Al radiator, Flexalite 175 electric fan, 1 5/8" MAC shorty headers, FRPP Al driveshaft; S&W 6-point cage; 2.5" Off road H-pipe, 2-chamber Flowmasters, 8.8" Rear w/ 3.55s; Weld wheels (15x6;15x8), Front: 225/60/15, Rear: 275/50/15 Nitto NT 555R Drag Radials; 14 x 4” K&N X-stream air filter. '92 GT (5-speed) Small In Car Video Stock 5.0L, 2-chamber Flowmasters, MAC CAI, Tri-Ax, Al pedals... "Red, thou art my companion. Hasten now your quickened metamorphosis to Green that I may conquer all who dare abide there beside me. May they be left thither behind burnt black." ---Fox Body

10-26-2003, 04:42 PM	#2
stang_racer20 Registered Member Join Date: Jun 2003 Location: Wisconsin Posts: 348	4500 is wear the engine makes peak, so given a few mods, somwhere between 4500 and 5000 shift point. __________________ 92 Mustang GT, 347 Stroker(Forged Steel Crank/Rods-Balanced, Forged Aluminum Dished Pistons), Trick Flow Track Heat Intake, Trick Flow Twisted Wedge Heads w/ Stage 3 port/polish, 80mm C&L MAF, FMS 30# Inj., BBK AFPR, Trick Flow Stage 2 Cam, Trick Flow 1.6R Rockers, BBK E.L. Headers, Flowmaster Cat-Back, MAC CAI, FMS Pulleys, Griffin Alum. Radiator, MSD Pro-Billet Distributor; AOD, Dynamic 3300 Lockup Converter, B & M Super Cooler, B&M Ratchet Shifter; 3:73 gears.

10-26-2003, 04:56 PM	#3
Rev Registered Member Join Date: Nov 1998 Location: Houston, Tx. Posts: 3,887	400-500 after peak HP You should shift at 400-500 after peak HP for best et's. Rev __________________ '66 Coupe, 306, 350-375 HP, C-4, 13.07 e.t., 104.8 mph, 1/4 mi. O.B.C. #2 '66 coupe

10-26-2003, 07:37 PM	#4
Fox Body Mustang Maniac Join Date: Sep 2000 Location: GA, U.S.A Posts: 2,266	sounds good. Thanks, guys. __________________ 351W-powered 1979 Ford Mustang Ghia notchback '79 Video @ Idle Stock 5.8L under 4" cowl 'glass hood, C4 w/ Transgo shift kit, Holley 750 cfm, Edelbrock Performer RPM intake; Fluidyne Al radiator, Flexalite 175 electric fan, 1 5/8" MAC shorty headers, FRPP Al driveshaft; S&W 6-point cage; 2.5" Off road H-pipe, 2-chamber Flowmasters, 8.8" Rear w/ 3.55s; Weld wheels (15x6;15x8), Front: 225/60/15, Rear: 275/50/15 Nitto NT 555R Drag Radials; 14 x 4” K&N X-stream air filter. '92 GT (5-speed) Small In Car Video Stock 5.0L, 2-chamber Flowmasters, MAC CAI, Tri-Ax, Al pedals... "Red, thou art my companion. Hasten now your quickened metamorphosis to Green that I may conquer all who dare abide there beside me. May they be left thither behind burnt black." ---Fox Body

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10-26-2003, 08:47 PM	#5
the69dr Registered Member Join Date: Oct 1999 Location: Marine Corps Base Hawaii, HI, usa Posts: 208	A shop out of Madison, WI called performance plus, they race anything from SHO's, to Lightnings, to 10.5" Outlaw cars etc. say a complete stock fuel injected motor should be shifted at 5200. Adam