Forced induction vs stroker
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Joined: Jun 2011
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From: Orange County, CA
Forced induction vs stroker
In the near future I'm planning on pumping a few grand into my '06 FX4 5.4. I've looked at plenty of threads on the topic of superchargers, and none seem to be too reassuring. So my question is, would it be more effective and less expensive in the long run to do a stroker kit including (rods/pistons/bearings/machining/assembly/gaskets/ &ported heads and cams), to make my 5.4 a 6.3, or would adding a blower, whether roushe, whipple or centri, be the better option. I've heard that superchargers require work down the road to combat the added stress of the blower, while the stoker kit is essentially giving you a brand new engine. All opinions and biases are appreciated!
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id go with neither route. turbo it and be done.
the stroker requires pulling the motor out, tearing it apart. lots of time in the machine shop which adds up quick, stroker kits arent cheap and in the end your still burning more fuel just to idle because of the extra cubes. what will that get you? 300-350rwhp or so........honestly i dont know, some one chime in on that one.
supercharging is a good route and im sure everyone on here will point to blown ford and say, "thats what a sc can do!". i on the other hand point to blown ford and ask, "is that all a sc can do?" 14psi and on a 5.4 mod motor, cai, bigger tb, efans, long tubes, full exhaust, the works...... and 475rwhp
at this point in the post id like to take a break and say i have nothing against blown ford or his truck. from his posts he seems like a great guy and he has a great truck but since he is the only one pushing decent hp, he is the best and only example i can use.
lets continue.... i have a 331 in my mustang...i know, i know, apples and oranges but displacement is displacement. 331 is about 5.4L with that said, my 331 is twin turbo and at 14psi makes over 600rwhp. and thats an "inefficient" pushrod motor.
iirc blown ford makes just over 500rwtq (correct me if im wrong) with a 5.4 on 14psi intercooled. sts makes 450rwhp on a 4.6L motor at 7psi and no intercooler. and before anyone jumps to the conclusion that sts is lying about their numbers, i have talked to two people who have bought the sts kit and are withing 5hp of the numbers sts claims.
the idea that turbos spool slow is wrong, my stang makes 6psi sitting still (on the trans brake of course) so when the light goes green, im at full boost in the first 100feet
lastly the price, i know what it costs to build a stroker pushrod motor and i have always been told that the mod motors are twice as much to stroke so that means its really expensive. if you go that roots/twin screw route your looking at probably $5k in parts and that wont get you to where blown ford is, he has a lot of go fast parts in his truck to get him the numbers he has. then you have the turbo route. you dont have a ton of options here, sts is $7k for the bolt in kit (f*ck that). they have a universal kit that i am told is pretty much the same as the bolt on kit for $3500. or you can do what i did, since i can cut, bend and weld metal, i built my own kit for $1500 in parts. works great, in first gear i hit full boost before 2000rpm and has been very reliable
anyways, if i offended anyone or if anyone feels i was calling them out, i apologize that was never my intent.
good night and merry christmas to all!
the stroker requires pulling the motor out, tearing it apart. lots of time in the machine shop which adds up quick, stroker kits arent cheap and in the end your still burning more fuel just to idle because of the extra cubes. what will that get you? 300-350rwhp or so........honestly i dont know, some one chime in on that one.
supercharging is a good route and im sure everyone on here will point to blown ford and say, "thats what a sc can do!". i on the other hand point to blown ford and ask, "is that all a sc can do?" 14psi and on a 5.4 mod motor, cai, bigger tb, efans, long tubes, full exhaust, the works...... and 475rwhp
at this point in the post id like to take a break and say i have nothing against blown ford or his truck. from his posts he seems like a great guy and he has a great truck but since he is the only one pushing decent hp, he is the best and only example i can use.
lets continue.... i have a 331 in my mustang...i know, i know, apples and oranges but displacement is displacement. 331 is about 5.4L with that said, my 331 is twin turbo and at 14psi makes over 600rwhp. and thats an "inefficient" pushrod motor.
iirc blown ford makes just over 500rwtq (correct me if im wrong) with a 5.4 on 14psi intercooled. sts makes 450rwhp on a 4.6L motor at 7psi and no intercooler. and before anyone jumps to the conclusion that sts is lying about their numbers, i have talked to two people who have bought the sts kit and are withing 5hp of the numbers sts claims.
the idea that turbos spool slow is wrong, my stang makes 6psi sitting still (on the trans brake of course) so when the light goes green, im at full boost in the first 100feet
lastly the price, i know what it costs to build a stroker pushrod motor and i have always been told that the mod motors are twice as much to stroke so that means its really expensive. if you go that roots/twin screw route your looking at probably $5k in parts and that wont get you to where blown ford is, he has a lot of go fast parts in his truck to get him the numbers he has. then you have the turbo route. you dont have a ton of options here, sts is $7k for the bolt in kit (f*ck that). they have a universal kit that i am told is pretty much the same as the bolt on kit for $3500. or you can do what i did, since i can cut, bend and weld metal, i built my own kit for $1500 in parts. works great, in first gear i hit full boost before 2000rpm and has been very reliable
anyways, if i offended anyone or if anyone feels i was calling them out, i apologize that was never my intent.
good night and merry christmas to all!
Last edited by luckythirteen13; Dec 24, 2011 at 08:24 PM.
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id go with neither route. turbo it and be done.
the stroker requires pulling the motor out, tearing it apart. lots of time in the machine shop which adds up quick, stroker kits arent cheap and in the end your still burning more fuel just to idle because of the extra cubes. what will that get you? 300-350rwhp or so........honestly i dont know, some one chime in on that one.
supercharging is a good route and im sure everyone on here will point to blown ford and say, "thats what a sc can do!". i on the other hand point to blown ford and ask, "is that all a sc can do?" 14psi and on a 5.4 mod motor, cai, bigger tb, efans, long tubes, full exhaust, the works...... and 475rwhp
at this point in the post id like to take a break and say i have nothing against blown ford or his truck. from his posts he seems like a great guy and he has a great truck but since he is the only one pushing decent hp, he is the best and only example i can use.
lets continue.... i have a 331 in my mustang...i know, i know, apples and oranges but displacement is displacement. 331 is about 5.4L with that said, my 331 is twin turbo and at 14psi makes over 600rwhp. and thats an "inefficient" pushrod motor.
iirc blown ford makes just over 500rwtq (correct me if im wrong) with a 5.4 on 14psi intercooled. sts makes 450rwhp on a 4.6L motor at 7psi and no intercooler. and before anyone jumps to the conclusion that sts is lying about their numbers, i have talked to two people who have bought the sts kit and are withing 5hp of the numbers sts claims.
the idea that turbos spool slow is wrong, my stang makes 6psi sitting still (on the trans brake of course) so when the light goes green, im at full boost in the first 100feet
lastly the price, i know what it costs to build a stroker pushrod motor and i have always been told that the mod motors are twice as much to stroke so that means its really expensive. if you go that roots/twin screw route your looking at probably $5k in parts and that wont get you to where blown ford is, he has a lot of go fast parts in his truck to get him the numbers he has. then you have the turbo route. you dont have a ton of options here, sts is $7k for the bolt in kit (f*ck that). they have a universal kit that i am told is pretty much the same as the bolt on kit for $3500. or you can do what i did, since i can cut, bend and weld metal, i built my own kit for $1500 in parts. works great, in first gear i hit full boost before 2000rpm and has been very reliable
anyways, if i offended anyone or if anyone feels i was calling them out, i apologize that was never my intent.
good night and merry christmas to all!
the stroker requires pulling the motor out, tearing it apart. lots of time in the machine shop which adds up quick, stroker kits arent cheap and in the end your still burning more fuel just to idle because of the extra cubes. what will that get you? 300-350rwhp or so........honestly i dont know, some one chime in on that one.
supercharging is a good route and im sure everyone on here will point to blown ford and say, "thats what a sc can do!". i on the other hand point to blown ford and ask, "is that all a sc can do?" 14psi and on a 5.4 mod motor, cai, bigger tb, efans, long tubes, full exhaust, the works...... and 475rwhp
at this point in the post id like to take a break and say i have nothing against blown ford or his truck. from his posts he seems like a great guy and he has a great truck but since he is the only one pushing decent hp, he is the best and only example i can use.
lets continue.... i have a 331 in my mustang...i know, i know, apples and oranges but displacement is displacement. 331 is about 5.4L with that said, my 331 is twin turbo and at 14psi makes over 600rwhp. and thats an "inefficient" pushrod motor.
iirc blown ford makes just over 500rwtq (correct me if im wrong) with a 5.4 on 14psi intercooled. sts makes 450rwhp on a 4.6L motor at 7psi and no intercooler. and before anyone jumps to the conclusion that sts is lying about their numbers, i have talked to two people who have bought the sts kit and are withing 5hp of the numbers sts claims.
the idea that turbos spool slow is wrong, my stang makes 6psi sitting still (on the trans brake of course) so when the light goes green, im at full boost in the first 100feet
lastly the price, i know what it costs to build a stroker pushrod motor and i have always been told that the mod motors are twice as much to stroke so that means its really expensive. if you go that roots/twin screw route your looking at probably $5k in parts and that wont get you to where blown ford is, he has a lot of go fast parts in his truck to get him the numbers he has. then you have the turbo route. you dont have a ton of options here, sts is $7k for the bolt in kit (f*ck that). they have a universal kit that i am told is pretty much the same as the bolt on kit for $3500. or you can do what i did, since i can cut, bend and weld metal, i built my own kit for $1500 in parts. works great, in first gear i hit full boost before 2000rpm and has been very reliable
anyways, if i offended anyone or if anyone feels i was calling them out, i apologize that was never my intent.
good night and merry christmas to all!
http://www.ststurbo.com/mustang_gt_twin_turbo
http://www.whipplesuperchargers.com/...sp?ProdID=1208
449whp on 7psi turbo charged and 504whp on 8psi supercharged. Also notice how long you wait for the power increase turbocharged verses supercharged.
But getting back to F150's. The sts kit makes a whopping 348whp. Careful one may fall asleep at the wheel. While even the Roush kit, the most inefficient of the sc's available for this truck will pump out 370whp. And the Whipple kit at 8psi will get you right at 400rwhp. This has been backed up time again by folks and magazines who have installed the kit and posted the results.
I actually don't have that many go fast parts. I do have the typical bolt on parts but the sc is where the powers coming from. Never been in the motor. I have however done a crap load of work to the truck readying everything to handle the built motor and additional boost when that day comes. Fuel system, drivetrain, suspension, everything is ready for 800+hp. Also I do not have a dyno reading at 14psi. When I dyno'd the truck it was at 3500' and making betwwen 10-12.45psi which produced 475whp and 532wtq. Here at home on the coast of NC she cranks out 13-14 and one could easily guess 490whp and I would say 445-450wtq. But peak numbers mean nothing. You have to look at the hp and tq curves to get a true sense of the power. For example I am making over 500wtq for a span of 1400rpm and never make less than 450wtq from 2800rpm to redline. A pull in 2nd gear would reveal this tq being produced off idle.
Last edited by Blown Ford; Dec 28, 2011 at 03:55 PM. Reason: Corrected boost levels per actual dyno sheet 10-12.45psi
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Your twin turbocharged mustang making 600rwhp.... Fords Shelby is claiming 550hp ain't rwh but that's still pretty high with a single supercharger.... I think turbos are better of for towing.... Just my opinion tho
Hence why Eco boost got turbos for towing... And ford lightning, optional saleen charger for the Harley davidson edition and the foose gets a super charger for streets....
Hence why Eco boost got turbos for towing... And ford lightning, optional saleen charger for the Harley davidson edition and the foose gets a super charger for streets....