which supercharger?

scp616 · October 27th, 2009, 11:23 AM

I'm building a 4 valve cobra motor to put in my 02 mustang GT and i can't decide what supercharger to use. I was originally going to go with a vortech centrifugal so i would still get decent gas mileage around town, but i saw an add for a magnuson blower that claims that it only uses 1/3 of a hp to spin when cruising because a bypass valve allows the screws to run in a vacuum.
Is it really possible to use a roots style supercharger without killing your gas mileage? Does that bypass system really work?

snosourfur · October 27th, 2009, 12:12 PM

Originally Posted by scp616

I'm building a 4 valve cobra motor to put in my 02 mustang GT and i can't decide what supercharger to use. I was originally going to go with a vortech centrifugal so i would still get decent gas mileage around town, but i saw an add for a magnuson blower that claims that it only uses 1/3 of a hp to spin when cruising because a bypass valve allows the screws to run in a vacuum.
Is it really possible to use a roots style supercharger without killing your gas mileage? Does that bypass system really work?

IMO the vortech would still be more fuel efficient, but then again if i were to s/c my car i wouldnt be too worried about the gas mileage lol

scp616 · October 27th, 2009, 02:08 PM

yeah, it would unless that bypass works, then i plan on using a vacuum cut off so that i can keep the bypass open all the time until i flip a switch and it'll start to make boost.
well it's gotta still get decent gas mileage, cause it's my daily driver

snosourfur · October 27th, 2009, 02:41 PM

very nice, i like the idea of the vacuum cut off...I would actually like that on a kenne bell which is what i plan on putting on mine, but i doubt they make KB's with that bypass system...either that or ive just never heard of one being made.

97mustanggt · October 27th, 2009, 04:20 PM

i just wish i had a supercharger period, haha

98Cobra_sleeper · October 27th, 2009, 05:57 PM

i had a vortech on my 98 cobra, and i had 4:10's and i got on it a few times each tank and still got 20mpg all around. i only did city driving. i almost never drove it on highway.

powerfulgt · October 27th, 2009, 07:38 PM

vortech or procharger will do but iv always heard vortech was a better choice why i dont no but both are good go to Superchargers 4 Less call them they have great deals

snosourfur · October 28th, 2009, 11:25 AM

Originally Posted by powerfulgt

vortech or procharger will do but iv always heard vortech was a better choice why i dont no but both are good go to Superchargers 4 Less call them they have great deals

i called them and they dont like to answer their phone

TwirtleNutZ270 · October 30th, 2009, 12:29 AM

go twin screw not roots if you have a choice.

October 27th, 2009, 11:23 AM	#1
scp616 Regular 2002 Mustang GT Join Date: Mar 2009 Location: SC Posts: 326 iTrader: 0 reviews	which supercharger? I'm building a 4 valve cobra motor to put in my 02 mustang GT and i can't decide what supercharger to use. I was originally going to go with a vortech centrifugal so i would still get decent gas mileage around town, but i saw an add for a magnuson blower that claims that it only uses 1/3 of a hp to spin when cruising because a bypass valve allows the screws to run in a vacuum. Is it really possible to use a roots style supercharger without killing your gas mileage? Does that bypass system really work? __________________ 02 GT --> long tube headers w/ x pipe and flow masters, throttle body w/ intake plenum, cold air intake, short throw, 255 nitto 555's all around, 373 diff gears, 2 inch lowering kit w/caster camber plates, sony radio working with stock system

October 27th, 2009, 02:08 PM	#3
scp616 Regular 2002 Mustang GT Join Date: Mar 2009 Location: SC Posts: 326 iTrader: 0 reviews	yeah, it would unless that bypass works, then i plan on using a vacuum cut off so that i can keep the bypass open all the time until i flip a switch and it'll start to make boost. well it's gotta still get decent gas mileage, cause it's my daily driver __________________ 02 GT --> long tube headers w/ x pipe and flow masters, throttle body w/ intake plenum, cold air intake, short throw, 255 nitto 555's all around, 373 diff gears, 2 inch lowering kit w/caster camber plates, sony radio working with stock system

October 27th, 2009, 04:20 PM	#5
97mustanggt Hardcore Enthusiast 97GT & 97Snake & 00L T.B.A Join Date: Aug 2008 Location: Richgrove, Ca Posts: 2,196 iTrader: 0 reviews	i just wish i had a supercharger period, haha __________________ 97 Cobra & 00 Lightning Beauty & The Beast I rev next to hybrids so they can hear me kill the environment MM Cobra Club Member #77 MM Lightning Club Founder

October 27th, 2009, 05:57 PM	#6
98Cobra_sleeper Enthusiast 1998 mustang cobra Join Date: Jul 2009 Location: pa Posts: 580 iTrader: 0 reviews	i had a vortech on my 98 cobra, and i had 4:10's and i got on it a few times each tank and still got 20mpg all around. i only did city driving. i almost never drove it on highway. __________________ HP twin turbo - 691hp/608tq with 15lbs huffed in.

October 30th, 2009, 12:29 AM	#9
TwirtleNutZ270 Regular 2003 Mach 1 12.12@112.69 Join Date: Oct 2009 Location: STL Posts: 104 iTrader: 0 reviews	go twin screw not roots if you have a choice. __________________ Fuck It

October 27th, 2009, 02:41 PM	#4
snosourfur Regular 04 Mach1, 89 Modded GT Join Date: Jul 2009 Location: Cape Coral, Fl Posts: 80 iTrader: 0 reviews	very nice, i like the idea of the vacuum cut off...I would actually like that on a kenne bell which is what i plan on putting on mine, but i doubt they make KB's with that bypass system...either that or ive just never heard of one being made.

October 27th, 2009, 07:38 PM	#7
powerfulgt Regular 2001 mustang gt conv. Join Date: Oct 2009 Location: waukee Posts: 113 iTrader: 0 reviews	vortech or procharger will do but iv always heard vortech was a better choice why i dont no but both are good go to Superchargers 4 Less call them they have great deals

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