Forced induction = cheaper horsepower?
06-19-2009, 11:37 AM
#1
Thread Starter
Join Date: Aug 2008
Posts: 17
Forced induction = cheaper horsepower?
I have heard many people say that adding boost to your engne is the cheapest way to add power versus adding bolt on N.A. parts to an engine. Is this really the case? An average basic twin screw ~(8-10 psi) is about $5800-6000 and adds about 160 hp, right?
Lets see how bolts ons stack up...(theoretically, of course)
Livernois ported heads 100hp $2900
Ford Hot rod cams 50hp (w/heads) $775
C & L intake 29hp ~$700?
Corsa mufflers (or other) 13hp $846
TOTAL 192hp $5221
This is assuming that the individual contribution of each part = 100% of advertised gain and that these parts work well together.
So that is $27/hp for the N.A. parts self installed and $36/hp for self-installed twin screw ($5800 and 160 hp). Plus there is still $600 dollars to go which could be headers or throttle bodies or other exhaust mods.
I know there is a lot more potential to gain horsepower with the blower, but what if you were just shooting for about 175 hp above stock?
Am I missing anything?
Lets see how bolts ons stack up...(theoretically, of course)
Livernois ported heads 100hp $2900
Ford Hot rod cams 50hp (w/heads) $775
C & L intake 29hp ~$700?
Corsa mufflers (or other) 13hp $846
TOTAL 192hp $5221
This is assuming that the individual contribution of each part = 100% of advertised gain and that these parts work well together.
So that is $27/hp for the N.A. parts self installed and $36/hp for self-installed twin screw ($5800 and 160 hp). Plus there is still $600 dollars to go which could be headers or throttle bodies or other exhaust mods.
I know there is a lot more potential to gain horsepower with the blower, but what if you were just shooting for about 175 hp above stock?
Am I missing anything?
06-19-2009, 11:45 AM
#2
Retired Mod
Join Date: Jan 2007
Location: Long Island, NY
Posts: 7,658
yea
Mufflers = no gain on a N/A car - suspect gains on a blown car
Hot rod cams & head... where did u get your HP gain estimates? you not getting 150hp out of that
CAI/Tune - more like 20-25 whp gain
Blower depending on tune @ 10 psi = closer to a 200hp gain.
450-475 avg whp vs 265-275 whp (stock)
only a few guys have gotten to 400whp NA and that was with stage 3 heads and cams, new springs, headers and exhaust and spent 8600 in parts (no labor & did it himself)
so IMHO your missing a lot
Mufflers = no gain on a N/A car - suspect gains on a blown car
Hot rod cams & head... where did u get your HP gain estimates? you not getting 150hp out of that
CAI/Tune - more like 20-25 whp gain
Blower depending on tune @ 10 psi = closer to a 200hp gain.
450-475 avg whp vs 265-275 whp (stock)
only a few guys have gotten to 400whp NA and that was with stage 3 heads and cams, new springs, headers and exhaust and spent 8600 in parts (no labor & did it himself)
so IMHO your missing a lot
Last edited by Stkjock; 06-19-2009 at 11:50 AM.
06-19-2009, 12:17 PM
#5
5th Gear Member
Join Date: Aug 2007
Location: College Station, TX
Posts: 2,179
EagleStroker put down upper 380's on a Mustang Dyno (closer to 415whp) and he has stock heads and lowered compression. It really can't be that hard to put down 400whp NA, you just need a stroker kit.
06-19-2009, 12:52 PM
#6
Retired Mod
Join Date: Jan 2007
Location: Long Island, NY
Posts: 7,658
Eagle has a stoker motor to 298cid as well and his heads are not "stock" they are ported and polished
I've seen him post that he spend 7500-8500 on the build
from his sig on a different forum:
"Eagle Stroker aka "The Stroker Stang"
"My 5.0" Eagle stroker, Crane cams, BBK Lt's, catted X pipe, Magnaflow Magnapack, P&P heads, BBK CAI "
http://www.cardomain.com/ride/3035476
I've seen him post that he spend 7500-8500 on the build
from his sig on a different forum:
"Eagle Stroker aka "The Stroker Stang"
"My 5.0" Eagle stroker, Crane cams, BBK Lt's, catted X pipe, Magnaflow Magnapack, P&P heads, BBK CAI "
http://www.cardomain.com/ride/3035476
06-19-2009, 02:05 PM
#9
6th Gear Member
Join Date: Jan 2007
Location: MI
Posts: 5,884
I have heard many people say that adding boost to your engne is the cheapest way to add power versus adding bolt on N.A. parts to an engine. Is this really the case? An average basic twin screw ~(8-10 psi) is about $5800-6000 and adds about 160 hp, right?
Lets see how bolts ons stack up...(theoretically, of course)
Livernois ported heads 100hp $2900
Ford Hot rod cams 50hp (w/heads) $775
C & L intake 29hp ~$700?
Corsa mufflers (or other) 13hp $846
TOTAL 192hp $5221
This is assuming that the individual contribution of each part = 100% of advertised gain and that these parts work well together.
So that is $27/hp for the N.A. parts self installed and $36/hp for self-installed twin screw ($5800 and 160 hp). Plus there is still $600 dollars to go which could be headers or throttle bodies or other exhaust mods.
I know there is a lot more potential to gain horsepower with the blower, but what if you were just shooting for about 175 hp above stock?
Am I missing anything?
Lets see how bolts ons stack up...(theoretically, of course)
Livernois ported heads 100hp $2900
Ford Hot rod cams 50hp (w/heads) $775
C & L intake 29hp ~$700?
Corsa mufflers (or other) 13hp $846
TOTAL 192hp $5221
This is assuming that the individual contribution of each part = 100% of advertised gain and that these parts work well together.
So that is $27/hp for the N.A. parts self installed and $36/hp for self-installed twin screw ($5800 and 160 hp). Plus there is still $600 dollars to go which could be headers or throttle bodies or other exhaust mods.
I know there is a lot more potential to gain horsepower with the blower, but what if you were just shooting for about 175 hp above stock?
Am I missing anything?
06-19-2009, 02:35 PM
#10
Gentleman's Relish
Join Date: Feb 2005
Location: AZ
Posts: 13,090
C&L for $700 includes a tuner (and you will find are closer to $600)...Anyways, intake package alone with tuner on these cars adds between 10-20 RWHP...yes, that's REAR wheel HP on a 91 or 93 octane tune.