Anyone have a set of stock 4.6 performance #'s I could use to guage what gains I have gotten with my mods? Currently running 0-60 in 13.1s and no clue on horsepower and such. Thanks!
PhoenixClaw
'97 F-150 XLT Supercab 4x4 ORP (Project "Hidden Horses")
Auto Tranny & 4.6L v8 w/
Air Force 1 FIPK
SuperChip!
Side exit custom Exhaust (no Idea what make)


[This message has been edited by PhoenixClaw (edited 02-15-2001).]

 

I'm running 15.7 in the quarter right now

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1998 F150 Nascar Edition
RC, 4.6L, 3.73
Performance Mods ... Superchip, Flowmaster SI/DO Lightning Exhaust
Other Mods ... Sony Explode Reciever and 12 Disc Changer

 

PhoenixClaw
Are you sure about that 13.1? b/c my stock 4.6 was around 10, but maybe thats just cause mine is a 5-speed. now i know i am under 10.


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The TRUCK:
1999 Black F150 XLT Sport 4x4 Flareside, 4.6 Triton V-8, Manual Transmission, Captains Chairs, Power Everything.

Appearance Changes:
Button-down Tonneau Cover, Webasto Sunroof, Spray-on Bed-liner, Xenon Fog and Headlights, Blackwidow Car Alarm, Window Tint, Wet Okole Seats (ALL).

Stereo:
2 10" Kicker CompVR's on Fosgate 360a2, Kicker Components Front & Fosgate 5x7 Rear on Fosgate 200a4, Blaupunkt Muchen Deck.

Performance:
265/70 R17 Yokohama Geolandar A/T+, Borla Split-Rear Cat-Back Exhaust, K&N FIPK.

 

Yes, your 4.6 does sound a little slow. Here is a thread I posted several weeks ago.

Thought I would share some raw numbers. "Non-scientific" but the best I can do. Truck has 1800 miles and may lossen up a bit yet. 2 runs each direction on flat road, Shell 92 used for all gas (incl stock), 19-28 deg and winter weather, 20% 4x4, conventional oil, trans in overdrive.

As indicated in previous threads, the chip is a worthwhile upgrade, but the exhaust is also wonderful. Low end torque is now tremendous. Shifting perfect. Chip took 1 hour, directions were HORRIBLE. Exhaust 2 hours, directions ok. AirRaid 1 hour, directions excellent.

Stock, 600 mi, 4900 rpm upshifts
0-60 = 9.46 seconds
0-80 = 16.50 seconds
50-80 = 10.2 seconds
City = 13.4 mpg
Hwy = 14.8 mpg

Superchip Only, 800 mi, 5150 rpm upshifts
0-60 = 9.15 seconds
0-80 = 15.3 seconds
50-80 = 9.57 seconds
City = 13.1 mpg
Hwy = n/a

Superchip and AirRaid FIPK, 1200mi
0-60 = 9.75 sec (engine warm,fluids cold)

Chipped, AirRaid, Gibson SS, 1400 mi
0-60 = 8.38 seconds
0-80 = 14.80 seconds
50-80 = 9.18 seconds (using overdrive)
50-80 = 8.73 seconds (overdrive off)
City = 12.7 mpg
Hwy = 14.9 mpg


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2001 Screw, 4x4, 5.4L, 3.55LS, trailer tow III, 255-16 tires, skids, no cap yet.

Superchip
Gibson Stainless SS
AirRaid FIPK
Line X, other misc.

 

Doing the stop watch method on my 99' 4.6l Auto, stock except airfilter, I got 8.2, 8.3, 8.2, constantly.

 

Very sure about that 13.1..That's the best I can get my truck to do, unless I'm doing something wrong (I ran in 4x2). I had my brother ride with me with a stopwatch and start the watch as I floor it and stop it as I pass thru 60. Made several passes and that's the best I could do. Any suggustions about why I'm laggin so far behind?

'97 F-150 XLT Supercab 4x4 ORP
4.6L v8 w/ auto tranny
AirForce 1 FIPK
SuperChip!
Custom exhaust (no idea what make)
electric fan coming next...

[This message has been edited by PhoenixClaw (edited 02-17-2001).]

 

If my speedo is correct I can do 0-60 in 9.62 seconds. That is with stock exhaust and intake(air filter and stuff).

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1997 XLT Teal 4.6L Flareside 4x4. Automatic, Reg. cab, tinted windows, bug deflector, Dual exhaust, K&N Generation 2 air filter, BullDog keyless entry/remote start(installed myself), Custom 16" wheels, bedliner, Covercraft tonneau cover, electronic shift on the fly. Going to add headers.

 

Phoenix, do you have the original size tires on there. If they're bigger 1) they'll hurt powerwise and 2) your speedo will be off unless you've corrected it. I went from 30" to 31.5" tires and my speedo was off 3mph at 60. The first few times I tried to time 5-60(I do that for my testing purposed to take out wheelspin from the picture) I was running almost a full second slower that my times with the old tires. I knew it should have only hurt me a few tenths to change the tire size 1.5". Finally I figured out that I was testing 5-63 and that was where the time inconsistancy was. For comparison with the 30" tires, my best 5-60 was around 8.8 seconds. I can't hook up with my open diff, and never wanted to try heating the tires up for traction, so my best 0-60 is around 9.2.

 

I'll check into the tire size idea. I don't know if they are stock size or not (got my truck used). Also, found about an inch and a half slack in my throttle cable that I removed so that the cable is tight. That dropped a half second off. Down to 12.7s now. Would ignition problems, like weak spark, cause this? Mebbe fuel pump or dirty injectors? Graspin for anything! Meanwhile, thanks for all the sugguestions and I'm gonna keep diggin till I find out the problem.
'97 F-150 XLT Supercab 4x4 ORP
4.6L v8 w/ auto tranny
AirForce 1 FIPK
Superchip!
(still trying to find out what exhaust I have)