Help need more power
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New User
Joined: Oct 2003
Posts: 4
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Help need more power
I have a 1999 F150 with 4.6L Romeo 150 heads
I have installed 3.73 limited slip diff. Hypertech power tuning, 160 degree thermostat, and cold air intake.
I am looking for more power but don't have $2100.00 to drop on a supercharger.
I was looking at replacing the stock injectors with a larger injector. Can this be done? Will I have to change the computer set points? and what size or how big can I go.
Please help on any suggestions on how to wake this puppy up.
I have installed 3.73 limited slip diff. Hypertech power tuning, 160 degree thermostat, and cold air intake.
I am looking for more power but don't have $2100.00 to drop on a supercharger.
I was looking at replacing the stock injectors with a larger injector. Can this be done? Will I have to change the computer set points? and what size or how big can I go.
Please help on any suggestions on how to wake this puppy up.
Posting Guru
Joined: Jan 2004
Posts: 1,437
Likes: 1
From: Hamilton, ohio
do exhaust and headers. what are you doing with your truck?? i pull a 18 foot ranger bass boat and it pulls the boat fine. i have air intake, exhaust done to mine. i found a place to do a custom "Y" pipe on my truck fopr under $200 with 18" long and 3 and a half inch round slash cut chrome tips
Fleet Mechanic
Joined: Sep 2002
Posts: 1,769
Likes: 7
From: Gretna ,LA.
any thing below 180 and the pcm goes into open loop which is it does not take reading from sensors and just goes by some preset settings in the pcm, not good.
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Tuned
Joined: Sep 2003
Posts: 311
Likes: 3
From: Arkansas
Supercharger....about all you can do. Cams are sort of a bolt on job along with ported heads. Not much else that's cheap....
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Postmaster
Joined: Jan 2003
Posts: 4,417
Likes: 3
From: Durham, NC
Absolutely go back to the 195 thermostat!!!
If your truck isn't fast enough, normally it's a lot cheaper, safer, and more reliable, to buy something already designed and built to run faster.....Just my $0.02!!!
If your truck isn't fast enough, normally it's a lot cheaper, safer, and more reliable, to buy something already designed and built to run faster.....Just my $0.02!!!
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