I was just wondering if you guys could help me in decideing what my next modification should be? The first thing I did when I bought it was drop in a K&N air filter. Next I purchased a Superchip (by far the biggest bang for the buck). Next I installed a Gibson Stainless steel exhaust. Dual out the rear. With the new exhaust I felt as if I lost some tourqe, but gained on the top end. Saturday I bought my baby some new shoes. BFG 265/75/16's. I know there not going to help with the get up and go. My ? is what mod can I do next to regain some tourqe. I'm looking foward to your responses, you guys haven't let me down yet.

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Silver 1998 F150
4x4,XLT,Supercab,5.4 Short Box,3.55 gears Captains chairs
Mods...
-Superchip
-Gibson Stainless steel catback, dual out the rear, 3 1/2in. Gibson tips.
-K&N air filter
-Silver bug defctor
-Soft tonneau
-Tinted windows
-Westin nerf bars

Sound System
-Alpine CD player
-Soundstream 6 1/2in. Seperates
-JL Audio stealth box
-Powered by a Sounsteam Reference 405

 

Hi Sir James,

It's somewhat common to lose some low-rpm torque but gain higher-rpm horsepower when doing exhaust mods.

Next up could be things like a nice 3-piece set of underdrive pulleys, or a set of headers. Or perhaps changing over to electric cooling fans.

And if you *really* want to get all you can out of it, and help compensate for those larger tires, a gear ratio change might be in order, but that does start getting a bit expensive, so it all depends on just what your goals are, and how much you are willing to spend to get there.

Good luck!

------------------
Mike Troyer
Performance Products, Inc.
National Distributor of Superchips
(540) 862-9515
Email: mtroyer@compuserve.com
Performance Products F150Online Superchip ordering system: F150Online Superchip Ordering System
First National F-150 Online Rally Event Organizer

 

Hey sirjames...want your torgue and HP back!

Take that Dual exhaust back off and install a Gibson "Swept Side" SINGLE cat back exhaust on it....you will be amazed at the difference it will make to your truck.

The duals just killed your bottom end torque and HP...go back to the single!


Just my .02 Canadian cents though!

 

if you have the money, supercharger!

but in reality, a gear change is the best idea, but that is about 1/3 the price of a supercharger.

I would suggest an electric fan. Get something like the Mark8 fan, $99 from Houston performance: http://www.houstonperformance.com

then get a PSM variflow controller to control that fan! $95 online @ http://www.psm1.com

That is my next upgrade in about 2 weeks!

 

SirJames,

Mike is right. The electric fan and underdrive pullies will get you back some of the ponies your accessories are robbing you of.

When I installed my K&N FIPK Gen II, I picked up some of the bottom end that I lost when I had the 2.5" duals installed. Make sure you have some sort of balance tube or "X" pipe connecting the left and right exhaust, somewhere between the mufflers and the manifolds. If all fails, get some 4.10s.

dats just my pinion, ahhh could be rong.



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Terry Deaton
99 F150 XLT, 2WD, 4.6, S/C, S/B, Superchip, K&N FIPK, FMS 9mm, +4s, Nerfs, Leer Top, Cow Catcher W/Bright A$$ Lights, True Duals with hi flow cats, 275 Dunlops with 3.08 gears, fat swaybars, Steeda front and Hellwig rear, Fabtech spindles with 2 inch blocks, B/E Performance Shift kit.
Coming Soon: 4.10s and Auburn Diff.
96 SVT COBRA (almost stock)
98 AERO black w/lotsa chrome
Speed Kills, drive a Chevy and live forever.

 

SirJames,
I think everyone's first purchase (after the actual truck) should be a digital camera! How bout some pics? Are the new shoes riding around on the stock wheels? I'm all for performance but I like my truck to look good to. Besides, I hear chrome wheels make you go fast!

Others,
All this talk about torque has me wondering. I felt some low end power loss after installing my 305's. After the exaust I got some top end and again with the Velocity Tube. Should I be thinking of changing my gears now too? If so, what will a set of 4.10's do to my wallet?



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Stock Stuff:
Y2K SCab 4X4, Chesnut Metallic, 5.4L, 3.55 Limited Slip, Skid Plates, Factory AM/FM/CD, 40/60 Split Bench, Sliding Rear Window, Towing Package and Keyless Entry.

Extras so far:

• GY 305/70X16 Wrangler ATS Tires
• American Eagle Series 146 Chrome Wheels
• Ravin Z-55 3" Single In/Out Exaust System
• WMS Velocity Tube
• K&N Filter
• Blaupunkt Houston CD Player
• Blaupunkt PCxt573 Speakers
• PIAA Super White Bulbs
• Catch-All Floor Mats
• Tinted Windows
• Bull Ring Retractable Tie-Downs
• www.f150online.com Sticker (below center brake light)
• University of Georgia Hitch Cover "GO DAWGS!"

Coming Soon:

• Clear Corner Lights (ordered 10/11/00)
• Clear Tail Lights
• PIAA Air Dam #30530
• PIAA 520 Series Fog Lights
• Spray-in Liner (or Herculiner haven't decided)
• Stainless Step Bars
• Hood and Window Deflectors

Pictures:
http://albums.photopoint.com/j/Album...3401&a=8556922

 

I would first like to thank everyone for there responses. I have been thinking of trying a FIPK. Do you think I will feel any diffrence?
You guys won't believe this one. In my original post I told you I just had some 265/75/16's put on my truck Saturday. Well that is half true. Today while at the gas station(GO Figure), I noticed the front tires appeared to be larger than the rear. After further inspection that was definately the case. I now have 285's on the front and 265's on the rear. I went to Dunn Tire, the most repetable place around here, so I thought.
Now I have a tough decision. I originally thought I wanted the 265's. After seeing the 285's on my truck I like them much better. The manager said do to there mistake they would be willing to give me whatever I wanted at no extra cost. That would mean I could get a set of 285's for the price of 265's($664.96)total. All in all it's just unbelievabl.


------------------
Silver 1998 F150
4x4,XLT,Supercab,5.4 Short Box,3.55 gears Captains chairs
Mods...
-Superchip
-Gibson Stainless steel catback, dual out the rear, 3 1/2in. Gibson tips.
-K&N air filter
-Silver bug deflector
-Soft tonneau
-Tinted windows
-Westin nerf bars
-BFG 265/75/16's
Sound System
-Alpine CD player
-Soundstream 6 1/2in. Seperates
-JL Audio stealth box
-Powered by a Sounsteam Reference 405

 

SirJames,

Keep the 285s !!!! I have the 285s on a set of chrome AR Nitros.

When they installed mine, they put three 285s with a single 295. The shop wanted the 295 back.

But I'm happy.

 

Three 285's and one 295? Is this so hard. Can we please get 4 matching tires...ha ha. My only concern is I am putting them on stock rims. The tire dealer said the smallest rim you could put a 285 on was 16x71/2. Anything smaller I would get uneven tire wear. ? I don't know.

 

285's will fit stock rims. I have 285 75 16 Wild Country's on stock 2001 rims. Sorry the pic looks so bad, I'll take some better ones soon.
http://www.geocities.com/good351/A2.jpg