it really depends on what kind of power you are looking for. as far as superchargers are concerned there are two basic designs. centrifugal and positive displacement. there is a countless amount of information on these designs but ill kind of give you a basic idea.
positive displacement blowers hit their max boost in the lower rpms and hold it through the powerband (tons of low end torque). some examples of these are the famous kenne bell, whipple, eaton, saleen, and roush.
the other type of supercharger is a centrifugal supercharger. these act a bit more like a turbo and in a sense "spool up". i have one myself and i do like this design a bit better. i get about 5#'s of boost at like 2k rpm and then it builds to 10psi at 6k rpm. i think this type of acceleration is pretty cool because you just keep getting pushed in your seat harder and harder throughout acceleration. some brands are vortech procharger and paxton.
it's all personal opinion. i did about a year of shopping/research before i settled on my procharger and i would recommend getting to know your stuff before spending thousands.
__________________
Procharged 2002 Mustang GT 5 Speed 351rwhp 353rwtq at 10psi
Next summer looking to go with:
Bilstien shocks + struts, Lowering springs (brand still TBD (any suggestions?)), MM CC plates, front + rear sway bars, subframes, and upper and lower control arms.
Time to make the pony ride some rails
I've been wanting to ask you about the low end gains you got with your Procharger and now seems a good time. Obviously the positive displacement superchargers are best for this but do you feel like you got a signifcant gain in low rpm power also? You mention 5psi at 2000 rpm so it seems there must be some improvement down low. Also, how did your tuner set you up for light throttle/cruising conditions? If you wanted to stay easy on the throttle how would your fuel mileage be? If I were to supercharge my car I would still like to be able to take it on trips without breaking the bank! Thanks for your help and your installation write-up was cool.
I like the instant boost of a twinscrew P/D blower myself. I researched for 2-3 years before I bought my Saleen Series IV blower kit.
My blower kit is already modded to the max with the exception of a 10% overdrive crank pulley should I get brave enough to push the boost above the current 9# it has now.
My car's engine is untouched with 112,000 miles. ~40,000 miles has been with boost and the last 20,000 miles have been with the 9# pulley and 93 octane JDM race tune. I get 25 mpg on the interstate with 373 gears and a 6 speed. I drive the car 75+ miles a day. The car has seen weather from 0*F to 107*F with the 9# pulley and it has performed perfectly.
Twin screw blowers if set up correctly require an oil change every 20,000 miles and that is about it.
__________________
"Ignore that whistle, it's just a vacuum leak."
2000 Mustang GT:
Saleen Series IV Twin Screw, Chicane I/C, AFCO Extreme H/E, 2.8" pulley, FMS 42# injectors, Dual Catted 2 1/2" UPR X Pipe, UPR LCAs/UCAs, 2 1/2" Flowmaster American Thunder kit, 90mm LMAF, 112" Goodyear Gatorback, Kenne Bell BAP, Mosaleen idler, T-56, Detroit TrueTrac w/ 373s, Demolet 100mm CAI, SCT XCal2 with JDM Engineering 93 Octane "Race" tune.
For a daily driver I would recommend a twin screw positive displacement unit. KB is the best known, but now that Eaton is selling their "twin vortice" base units (and they are very good as well) it is possible to compare Whipple, Roush, Saleen, FRPP, Magnusson and perhaps some I've forgotten.
For a street/strip car, I would give the edge to a ProCharger centrifugal blower.
For a dedicated drag strip car, I would be studying turbos.
__________________
tripleblack
"You can never be free until you let yourself go."
I've been wanting to ask you about the low end gains you got with your Procharger and now seems a good time. Obviously the positive displacement superchargers are best for this but do you feel like you got a signifcant gain in low rpm power also? You mention 5psi at 2000 rpm so it seems there must be some improvement down low. Also, how did your tuner set you up for light throttle/cruising conditions? If you wanted to stay easy on the throttle how would your fuel mileage be? If I were to supercharge my car I would still like to be able to take it on trips without breaking the bank! Thanks for your help and your installation write-up was cool.
obviously it is no positive displacement blower but it certainly is a new beast throughout the powerband. i wish i had a scanner so i could upload my dyno sheet but the torque curve is mostly flat with a bump between 4 and 5k where it spikes to 353rwtq. and gas mileage is virtually unchanged (only because i step on it all the time). if i'm not making boost then my bypass valve is open so the engine has no need to burn extra fuel. and if you are worrying about breaking the bank on gas then what are you doing driving a v8 not to mention spending thousands of dollars supercharging it . worth every penney.
__________________
Procharged 2002 Mustang GT 5 Speed 351rwhp 353rwtq at 10psi
Next summer looking to go with:
Bilstien shocks + struts, Lowering springs (brand still TBD (any suggestions?)), MM CC plates, front + rear sway bars, subframes, and upper and lower control arms.
Time to make the pony ride some rails
Which type of charger is faster off the line? I'm kinda looking for a faster off the line speed. And what are the differences on v2 and v3 and what not?
if i'm not mistaken the v3 is vortech's newest unit. it has a self contained oiling system (like procharger) so you do not have to tap a line into your oil pain.
for faster off the line it really depends. the positive displacement blowers have a ton of low end torque but if you can't hook up then you will just be spinning the tires.
__________________
Procharged 2002 Mustang GT 5 Speed 351rwhp 353rwtq at 10psi
Next summer looking to go with:
Bilstien shocks + struts, Lowering springs (brand still TBD (any suggestions?)), MM CC plates, front + rear sway bars, subframes, and upper and lower control arms.
Time to make the pony ride some rails
i got a kenne bell,have not driven the car yet though
__________________
03 MUSTANG GT,4R75W KENNE BELL 2.1 S/C NON-INTERCOOLED 6PSI
36LB INJECTORS,MONO CHIP,AUTOLITE 103s
BOOST-A-PUMP,SLP LOUDMOUTH CAT-BACK
TRICKFLOW 70MM THROTTLE BODY
STOCK AIR INTAKE WITH K&N DROP IN
FORD RACING 3.73 GEARS
obviously it is no positive displacement blower but it certainly is a new beast throughout the powerband. i wish i had a scanner so i could upload my dyno sheet but the torque curve is mostly flat with a bump between 4 and 5k where it spikes to 353rwtq. and gas mileage is virtually unchanged (only because i step on it all the time). if i'm not making boost then my bypass valve is open so the engine has no need to burn extra fuel. and if you are worrying about breaking the bank on gas then what are you doing driving a v8 not to mention spending thousands of dollars supercharging it . worth every penney.
I know it sounds funny worrying about gas mileage in the same sentence as wanting a S/C but it's kinda a "have your cake and eat it too!" scenario. It sounds possible as grn 00 gt says he gets 25 on the freeway, about what I get N/A. As far as getting your dyno sheet up just take a picture with a camera, it'll show up fine. I'd love to see it.
Well for off the line the best thing to do would be to get a Kenne Bell and beef up your suspension a little bit. This way you will be able to hit instant boost and pick right up with little wheel spin. If I were to go with a centri blower Id recommend the Procharger. I get about 21-24mpg on highway and about 14/15mpg in city. It all depends on how heavy your foot is.
__________________
-04 Mustang GT-Intercooled Kenne bell 2.1L supercharged @10psi, C&L cold air intake, mass air flow, Sumitt racing 75mm throttle body, Magnaflow catback with Bassani X-pipe, chip and dyno tuned, 3:73 gears, B&M short shifter, FMS lowering springs and UPR caster camber plates, UPR upper/lower control arms, UPR subframe connectors. Kumho 275 up front/Kumho XS 315 in rear. Currently 420RWHP/435lbtq
-Daily Driver 04 Toyota Tacoma PreRunner, Blacked out, TRD suspension, K&N filter.
Check in my gallery for a dyno sheet from a KB. Imagine big block torque in a small block car. It may be nice to continually get pushed deeper into your seat, but the feeling of not being able to reach forward until third gear is uber-cool.
__________________
Sometimes I think that government fits that old-fashioned definition of a baby: An alimentary canal with an appetite at one end and no sense of responsibility at the other.
- Ronald Reagan
I know it sounds funny worrying about gas mileage in the same sentence as wanting a S/C but it's kinda a "have your cake and eat it too!" scenario. It sounds possible as grn 00 gt says he gets 25 on the freeway, about what I get N/A. As far as getting your dyno sheet up just take a picture with a camera, it'll show up fine. I'd love to see it.
That 25 mpg was with the 9# pulley and 93 Octane JDM Engineering race tune and my old inefficient intercooler.
I added the Chicane I/C which significantly dropped my IATs, so I am hoping to gain 1/2 to 1 mpg.
I am driving to PA with my son in the end of July and will post my mileage seen on highway only driving with cruise on in 6th gear from TN to PA.
I have seen as much as 25.5 mpg with the old intercooler, so with a little more timing, who knows.
I just checked the mileage today. (filled it up to the top at a gas station, drove out a tank then returned to the same pump to refill to the top again.) I averaged 21 mpg with mostly 2 lane highway/interstate and some city driving.
__________________
"Ignore that whistle, it's just a vacuum leak."
2000 Mustang GT:
Saleen Series IV Twin Screw, Chicane I/C, AFCO Extreme H/E, 2.8" pulley, FMS 42# injectors, Dual Catted 2 1/2" UPR X Pipe, UPR LCAs/UCAs, 2 1/2" Flowmaster American Thunder kit, 90mm LMAF, 112" Goodyear Gatorback, Kenne Bell BAP, Mosaleen idler, T-56, Detroit TrueTrac w/ 373s, Demolet 100mm CAI, SCT XCal2 with JDM Engineering 93 Octane "Race" tune.
Look foward to the mileage report. Hey, I just noticed that you are in Murfreesboro, are you familiar with Barrett Firearms? Ronnie Barrett is a standup guy, got a lot of respect for him.
Supercharger Recommendations 
. worth every penney.
