How much horsepower does a stock 4.2 liter make
#1
How much horsepower does a stock 4.2 liter make
Does any body know how much horsepower the 1999 4.2liter 4x4 sport makes stock?I'm putting on a supercharger and a superchip. I just wanted to know what I can expect to gain in performance.
Josh
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99 Black F150 4.2 4x4 Sport.GTO Head&Tailight
Covers(smoke).K&N airfilter,Dual Exhaust w/ Flowmaster Muffler,Performance Module,and 265/85/16 Tires.
Josh
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99 Black F150 4.2 4x4 Sport.GTO Head&Tailight
Covers(smoke).K&N airfilter,Dual Exhaust w/ Flowmaster Muffler,Performance Module,and 265/85/16 Tires.
#2
Xanman,
I believe it's 205 hp. Your owner's manual has the listings for all engines near the back.
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Dunbarton "The Middle Aged Kid" '99 XLT SC SB 4x2 4.6 auto 3.55 ls The occasional Z-71 Eater! Wedgewood & Denim, SuperChipped, Airaid FIPK, Rhino Liner, Mobil 1. Man, I got it all! (New Jersey)
I believe it's 205 hp. Your owner's manual has the listings for all engines near the back.
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Dunbarton "The Middle Aged Kid" '99 XLT SC SB 4x2 4.6 auto 3.55 ls The occasional Z-71 Eater! Wedgewood & Denim, SuperChipped, Airaid FIPK, Rhino Liner, Mobil 1. Man, I got it all! (New Jersey)
#3
Dunbarton,
Thanks for your reply you were right on the button.Do you have a guess what it will
be after I install.
powerdyne supercharger
superchip w/custom program
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99 Black F150 4.2 4x4 Sport.GTO Head&Tailight
Covers(smoke).K&N airfilter,Dual Exhaust w/ Flowmaster Muffler,Performance Module,and 265/85/16 Tires.
Thanks for your reply you were right on the button.Do you have a guess what it will
be after I install.
powerdyne supercharger
superchip w/custom program
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99 Black F150 4.2 4x4 Sport.GTO Head&Tailight
Covers(smoke).K&N airfilter,Dual Exhaust w/ Flowmaster Muffler,Performance Module,and 265/85/16 Tires.
#5
54regcab,
I got the supercharger from Powerdyne they don't have a full kit I just got the head,intake,and all the pressure couplings.I have to fabricate the brackets and the pressure pipe.It will be here the 10th, I cant wait.It's probably giong to take a week or two to finish with it.How about a guess on the HP?Oh by the way I will be installing 4.10 gears the first part of Jan.But first I've got to recover from these mods.Thanks for the intrest.
I got the supercharger from Powerdyne they don't have a full kit I just got the head,intake,and all the pressure couplings.I have to fabricate the brackets and the pressure pipe.It will be here the 10th, I cant wait.It's probably giong to take a week or two to finish with it.How about a guess on the HP?Oh by the way I will be installing 4.10 gears the first part of Jan.But first I've got to recover from these mods.Thanks for the intrest.
#6
How much horsepower you will make is dependent on how much boost you are going to run. A good rule of thumb is 10 horsepower for every pound of boost. So if you are running 8# of boost, expect an 80 hp increase.
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HotRodSix
'98 STX Flairside 4.2L
Best 1/4: 16.26 sec. @ 84.4 mph
Dyno: 180 rwhp / 228 ft-lb
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HotRodSix
'98 STX Flairside 4.2L
Best 1/4: 16.26 sec. @ 84.4 mph
Dyno: 180 rwhp / 228 ft-lb
#7
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#8
HotRodSix,
I will be runnihg 6lbs. of boost.So that will be roughly 60hp. right? But does the superchip give me any gains if so how much do you think?One more thing I have 32in. tires and I want to put in 4.10 gears do you think that will give me a good strong whole shot?
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99 Black F150 4.2 4x4 Sport.GTO Head&Tailight
Covers(smoke).K&N airfilter,Dual Exhaust w/ Flowmaster Muffler,Performance Module,and 265/85/16 Tires.
I will be runnihg 6lbs. of boost.So that will be roughly 60hp. right? But does the superchip give me any gains if so how much do you think?One more thing I have 32in. tires and I want to put in 4.10 gears do you think that will give me a good strong whole shot?
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99 Black F150 4.2 4x4 Sport.GTO Head&Tailight
Covers(smoke).K&N airfilter,Dual Exhaust w/ Flowmaster Muffler,Performance Module,and 265/85/16 Tires.
#10
XanMan - 60 hp gain is about right. The Superchips will have to be calibrated for your supercharged application. The standard chip for the 4.2L will have too much timing for a supercharger. A chip will generally help a supercharged engine more than a naturally aspirated one (my chip gave me 10hp) because the stock computer runs out of range for the extra power. I'd expect 15-20 hp additional with the chip.
A 4.10 gear is not much with a 32" tall tire! That would be equivalent to 3.26 gear in a Mustang (can you say lazy launch on a 5000# truck?!!). I would go with a 4.30 or even a 4.56 with that tall of a tire. A 4.56 gear would be equivalent to a 3.63 gear in a Mustang.
Let us know how this works out for you.
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HotRodSix
'98 STX Flairside 4.2L
Best 1/4: 16.26 sec. @ 84.4 mph
Dyno: 180 rwhp / 228 ft-lb
[This message has been edited by HotRodSix (edited 12-05-1999).]
A 4.10 gear is not much with a 32" tall tire! That would be equivalent to 3.26 gear in a Mustang (can you say lazy launch on a 5000# truck?!!). I would go with a 4.30 or even a 4.56 with that tall of a tire. A 4.56 gear would be equivalent to a 3.63 gear in a Mustang.
Let us know how this works out for you.
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HotRodSix
'98 STX Flairside 4.2L
Best 1/4: 16.26 sec. @ 84.4 mph
Dyno: 180 rwhp / 228 ft-lb
[This message has been edited by HotRodSix (edited 12-05-1999).]
#11
HotRodSix,
Thanks for all useful information.Mike T. doing a custom program on the Superchip he said it will take about ten days.Reguarding the gears do they make 4.30 gears for the 4x4?The front is reversed I heard, do you know if that is true? Where did you get your gears done?The only place near me that will work on my 99 is Ford and they want $900.00+ just for the labor.A better price is worth a roadtrip!
Thanks for all useful information.Mike T. doing a custom program on the Superchip he said it will take about ten days.Reguarding the gears do they make 4.30 gears for the 4x4?The front is reversed I heard, do you know if that is true? Where did you get your gears done?The only place near me that will work on my 99 is Ford and they want $900.00+ just for the labor.A better price is worth a roadtrip!