Needs more power!
Cargo Master
Joined: Nov 2005
Posts: 2,051
Likes: 10
From: TEXAS
What kind of power are you looking for? Towing, Go Fast Race car, Seat of the Pants or Dyno sheet.
Towing: Rear end change to 4:30
Go Fast Race Car: Ain't going to happen, at least for reasonible. Too heavy, was never
intented to be a fast truck...just a dependable work horse of a truck.
Seat of the pants: Exhaust, K&N drop in filter......small HP gains, sounds great under
acceleration, which seems to translate into Seat of the Pants HP gains.
Dyno Sheet: Equal all of the above, (except the rear end ratio...no Dyno gain) then add Y-pipe, header system, free flow exhaust system, K&N or CAI system, a good computer tune from the sponsor of this forum, tune up, clean the MAF.
I'm sure someone will come along and add to the list..shortly.
Towing: Rear end change to 4:30
Go Fast Race Car: Ain't going to happen, at least for reasonible. Too heavy, was never
intented to be a fast truck...just a dependable work horse of a truck.
Seat of the pants: Exhaust, K&N drop in filter......small HP gains, sounds great under
acceleration, which seems to translate into Seat of the Pants HP gains.
Dyno Sheet: Equal all of the above, (except the rear end ratio...no Dyno gain) then add Y-pipe, header system, free flow exhaust system, K&N or CAI system, a good computer tune from the sponsor of this forum, tune up, clean the MAF.
I'm sure someone will come along and add to the list..shortly.
Freshman User
Joined: Jan 2008
Posts: 29
Likes: 0
From: CT
I have the same truck, a '99 F250 with the V10 (only mod is from the PO, a K&N filter) and I'm actually very happy with its performance. The truck pulls well, especially at lower RPM. Even staying under 3000 RPM and half throttle the truck feels better than my dads '06 Cummins Ram 2500.
It is far from a race car, and like stated above a full exhaust from headers back, tune and cold air kit is about the best your going to do on the "cheap". I think one of these motors with a Kenne Bell would be a ton of fun, but thats also $$$.
Good luck with it, and if you mod, let us know how it does.
Junior User
Joined: Nov 2008
Posts: 75
Likes: 0
From: Lake Havsu, AZ
I just got a set of Thorley headers for my X. I am going to run the X on the dyno stock then install the headers to see what actual hp numbers I get. I will post results in a couple weeks to show my findings.
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Junior User
Joined: Jan 2009
Posts: 57
Likes: 0
I am not an expert and just learning about these trucks my self but since he has the 99 doesn't that mean that he does not have the restrictive Y pipe like the 2001+ years and the gains of power would not be that great with using the ebay Y pipe?
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New User
Joined: Aug 2007
Posts: 22
Likes: 0
ive already put in a K&N Filter and a Superchips Tuner. Ive been lookin a Throttle body and Throttle body spacers? those really work like they do on the old carb motors??? ive also though about a cold air system.... ive also thought about short pipe headers?
only prob i have a few studs broke off... it seems that it could be a pain in the *** too change without pullin the motor...
only prob i have a few studs broke off... it seems that it could be a pain in the *** too change without pullin the motor...
Postmaster
Joined: Jun 2008
Posts: 2,564
Likes: 11
From: Wayyy NoCal, USA
Looking forward to it!!!
You say your 99 has the crimped T pipe? Strange. I thought all '99's had the doubled back ramshorn....
Junior User
Joined: Nov 2008
Posts: 75
Likes: 0
From: Lake Havsu, AZ
Short tube headers are useless for a normal application. You will lose a lot of low end torque. Mid to long tube are the only headers I would buy. Broken studs could be a pain but you should be able to get them our from underneath.
Postmaster
Joined: Jun 2008
Posts: 2,564
Likes: 11
From: Wayyy NoCal, USA
ive already put in a K&N Filter and a Superchips Tuner. Ive been lookin a Throttle body and Throttle body spacers? those really work like they do on the old carb motors??? ive also though about a cold air system.... ive also thought about short pipe headers?
only prob i have a few studs broke off... it seems that it could be a pain in the *** too change without pullin the motor...
only prob i have a few studs broke off... it seems that it could be a pain in the *** too change without pullin the motor...
New TB? Maybe at high rpm.
Short headers? Some gain maybe. Depending on who you ask....
Last cheapy: Replace the snorkel on the front of your airbox. The part that goes through the front bulkhead. Stock is only about 2.25" ID.
I pulled the snorkel off a 2006 motorhome airbox that used the 3V engine. That snorkel is 3.5" ID. Glued it onto my airbox with JB Weld and cut away stock box until they blended.
After that, if you want higher rpm hp, you really should upgrade to 2000+ PI heads, cams, and intake manifold. The pre-PI is designed to be a grunter and runs out of breathe earlier. Or trade in for a 2005+ 3V. As generations go on, the engine breathes deeper and makes more peak power.
Hotshot
Joined: Mar 2007
Posts: 10,101
Likes: 40
From: Pa
I don't know if the 99 has the reterded y pipe or not? I know mine does.
Y Pipe Info : SPD Performance
From what I have seen and heard, throwing numerically higher gears in will hurt power.
only prob i have a few studs broke off... it seems that it could be a pain in the *** too change without pullin the motor...
Last cheapy: Replace the snorkel on the front of your airbox. The part that goes through the front bulkhead. Stock is only about 2.25" ID.
I pulled the snorkel off a 2006 motorhome airbox that used the 3V engine. That snorkel is 3.5" ID. Glued it onto my airbox with JB Weld and cut away stock box until they blended.
I pulled the snorkel off a 2006 motorhome airbox that used the 3V engine. That snorkel is 3.5" ID. Glued it onto my airbox with JB Weld and cut away stock box until they blended.
Senior User
Joined: Jan 2009
Posts: 419
Likes: 1
I have shorties on mine. Good gains and it sounds much better. I lost zero low end. If anything, I gained.