Which do you guys prefer, the Vortech carbed supercharger kit with the box that goes around the carb or the Procharger kit with a hat that goes over the carb. Which is the best kit, takes least modification to fit, etc. Any problems? Pics? Thanks

 

i think they both work the same way with the carb setup.i just dont like it for many reason.

1. its a centrifugal supercharger
2. fuel pressure has to be like 7 psi+ boost pressure=fuel pressure that better be there at the carb.
3 number two requires an elaborate fuel system
4 hoping the kit will have number three that is suffiecnt for the applications.
5 centrifugal is not positive displacement.

if u really want to go the supercharger route my suggestion.
is go with a roots or a whipple charger (better than roots although might not be available for the sbc i dont know i havent checked yet).

1 boost right off idle
2 positive displacement
3 a real reason to use a cowl hood
4 easier to setup
5 easier to install
6 it might be even cheaper.


dave

 

It is to my knowledge that roots superchargers are less efficient and have higher intake temperatures thereby giving lower horsepower gains. I would really like to go centrifigal, but what would be a good roots setup to get around 550 horsepower out of a 350. Oh and I dont have the best roots blower compression either, 9.1:1

thanks
Seth

 

Well i must say i dont have either or even have a supercharger roots or centrifgual. Now when the time does come to purchase a blower it will be a centrifgual..why you ask...well there are 2 reasons to pick one over the other. #1. more efficent. #2. no hole in the hood. The roots can and will make power just not as efficent. Car craft I believe had a buildup of a 454 crate motor with a vortech setup, larger cam, headers, and edelbrock manifold. It made 780 horse on freakin pump gas and they barely breathed on it!! Impressive in my book. Now it was hot rod I believe that had a 426 hemi with dual dommies and a 8-71 blower that made 750 horse//you do the math. Now comparing the 2 motors..the rat had a mild setup..pump gas in mind one carbie and vortech setup..780 horse. The hemi dual dommies..forget street manners and 8-71 blower..750 horse. Now this is just my opinion but let the facts speak for themselves..Im goin vortech baby..later

 

im willing to bet that the 426 hemi would eat the 454 at the dragstrip(providing that both is install in similar vehicle) .um did u compare the torque figure of both engines.i bet u the 426 hemi has a much broader torque curve.i really dont cares how efficent a supercharger is, id be more interested in how much power can be attain.and if efficency is your thingwhy not go with the whipple charger.and lastly how come top fuel and funny car only use positive displacement chargers???? because they have no lag.


dave

 

Dave i can respect your opinion about preferring a roots type over a centrifugal blower..thats your choice but not mine. I happen to love roots blowers nothing like them butttt..on the street now this is my opinion the vortech or some other centrifugal blower performs better in real world situations. I have the articles at home with the 426 roots vs the 454 centrifugal and do not remember the torque values but im pretty sure that the 454 was right there or ahead of the 426 in all rpm's..The roots is a kickass setup and works great on street cars and even better on top fuelers etc..etc. The centrifugal in my opinion is a more high tech approach to hot rodddin your ride and that is what i like. more effecient and under the hood..works for me not for all but that is what makes this country great.have a good one....

 

https://www.thirdgen.org/techbb2/sho...hreadid=144692

Read it, 550 horsepower, 22 MPG... roots blower...
you will spend $$$ in the long run no matter which way you go. Best idea i can think of is copy somone who has done it, and has had alot of success with it. otherwise you might end up with a mis-matched combination of parts. I learned the hard way.

 

I have been trying to decide which way to go for about 3 months now. with the prices of kits coming down to reasonable with centrifugal kits, it is going to come out about the same for me. the centrifugal is still going to be a bit more, but not by much

it will take a bit more time for the centrifugal, but the IC & under hood aspect is worth it for me.

I think that its about a matter of preference now days.

BW

 

I'm really interested in this question too. I just got ATI's ifo package for carbed applications, and I'm really interested in going that route. I wasn't too crazy about Vortech's 'carb-in-a-box setup. It looks like a real PITA to work with, but are there that many problems, if any, with bonnet style systems like ATI's, that make Vortech's box worth the hassle?

 

The car craft article with the vortech and carb setup did not look that diffcult to install. Im not sure if we are talking about the same thing. it was a 454 crate motor with carb in a box setup..looked like a sweet setup to me....and 780 horse didnt hurt either....

 

WRT to the roots blown hemi vs the vortech BBC... there is no intrinsic advantage between the 2 engines once you put a blower on them. What you will see is that assuming that you could hook both of them up you'll probably run faster with the roots blown engine just because if the incredible flat torque curve that you get with a roots. If they were putting out the same HP then that would definitely be the case.

OTOH, the reason that there are a lot of very fast cars running centrifugal blowers in street car classes is exactly the same reason, they do not hit the tires as hard off the line which makes things easier to hook.

 

Hot Rod made 677 horsepower, 627 ft-lb of torque at 5,000 rpm with the Vortech setup on a 383 with 8 pounds of boost.

 

diseregard