[GRN69CHV]

But when you come down to it, guys used to use blowers to get into the 600 - 700 range for a street motor. Today, 600-700 NA is nothing. If you are going to go the expense and aggravation of a blower in stall, it should be worth the work. I'm talking 800HP minimum. Take any decent 496 motor, very hard to not hit the 600HP mark, why bother with a blower?

[Chevelle 6-71]

We were at thhe Good Guys show this weekend and what the one guy above said was right. Most of the blown cars out there were ALL show and no go. Some of them underdriven so much they were probably creating 1 to 2 lbs of boost if that. I actually saw two 540's with 6-71's on them. There was one guy that had a 540 with a 10-71 on it and he WAS all business. When he started it the ground shook. Me, I love blown cars. I don't think their dead but are becoming out numbered by the turbo's and hair-dryers. I drive mine as much as I can & hammer the c$%p out of it all the time.

As far as sound - Oh Yea!
http://youtube.com/watch?v=_QouB1S0_w8

[b-man]

Oh.. and lets remember .. 865 hp.. on pump gas....
FUN at the turn of a key!!!

[Chief fat nutz]

Originally Posted by b-man

Oh.. and lets remember .. 865 hp.. on pump gas....
FUN at the turn of a key!!!

B-man.....I think thats wild! 865hp on pump to boot Blowers are dead in some cases and turbo's/Centrifiguals are the rules of the track now a days. I will keep the legacy going and by another blower

[onovakind67]

I think that all blowers, rootes and centrifugal, are going to be replaced by this unit:

http://videos.streetfire.net/video/2...36dfa3e5d7.htm

[Chief fat nutz]

Originally Posted by onovakind67

I think that all blowers, rootes and centrifugal, are going to be replaced by this unit:

http://videos.streetfire.net/video/2...36dfa3e5d7.htm

I remember seeing that over 2 years ago! I've been looking for that!!!

[ejrempel]

Originally Posted by onovakind67

I think that all blowers, rootes and centrifugal, are going to be replaced by this unit:

http://videos.streetfire.net/video/2...36dfa3e5d7.htm

Hillarious!

[Bomber '67]

Many people might be surprised to hear that rootes type blowers were considered quite exotic, and very much a rarity, on a street driven hot rod well through the sixties and into the seventies.

Well there was this one guy who drove his everywhere:
http://www.streetrodderweb.com/featu.../photo_03.html
But for most guys who tried, street blowers never worked out with engine life or driveability. Then in the seventies the aftermarket developed more street friendly setups and more was known about how to make powerful AND reliable blower engines.

I don't know that there is any decline in the number of rootes supercharged musclecars and hot rods - its just that there are increasing numbers of turbo and centrifugal supercharged setups. The beauty of a rootes blower is that it will make the max possible torque whenever you whack the throttle blades wide open. That is also the bane of the rootes supercharged car - makes it tough to get off the line with that kind of on off switch.

Its all good

Thomas

Small piece of trivia: the first legitimate 9 second street car as I remember it was a supercharged T-bucket - the engine was an odd choice of a 1960 Lincoln 430.

[406shark]

I always enjoy this video http://videos.streetfire.net/search/...2b0b2d9e95.htm

Turn your speaker volume up, and watch how quick the tires turn to smoke.

Jeff

[bdc1013]

I would love to have a 142 on top of my 383 and hide it under my stock hood. Is that possible? man robert your combo sure sounds fun, that power with a tko600. just awesome

[mad hooker]

haha roots make power and yes i think they are becoming more rare. but when you do see one and it is set up nicely, man theres nothing like it. at the good guys show i went to there was a guy with a 54 chevy pickup, with a roots. around 800hp, when he started it , the ground shook, and all you could hear was that engine, you had to pretty much scream at who ever you were trying to talk to near that thing. and what about brute force? his chevelle has a roots and i know hes around the 800hp as well.

[Greybeard]

Originally Posted by bdc1013

I would love to have a 142 on top of my 383 and hide it under my stock hood. Is that possible? man robert your combo sure sounds fun, that power with a tko600. just awesome

I installed a B&M unit when they first came out, bought it @ SEMA in '83. Put it on a 377 in my '66 ELCO. I Had only 1.5" from the carb 'airfilter' flange to the hood even after changing to an AFB. Took a lot of playing around to get the filter low enough to clear the hood. A 2" cowl would have made it easier, but I wasn't into advertising.

Even the little blowers make good torque and power. I dialed in the carb on a Clayton CHassis dyno that has two fairly small rollers. Chained down and hydraulically pulled down into the rollers, with the link pulled between primaries and secondaries, we spun on the rollers. They'd ususally take about 260hp to do that. We got three 200 pounders in the shop to come sit on the tailgate and it still busted the wheels loose, on TWO BARRELS.
I hadn't gone to get power figures, just wanted to be sure the carb was right, before I really played with it.

I never took it to the track, but it was fairly strong. I had a challange once from a Turbo Porshe and hurt his feeling big time. I've got a great story about taking a drunk Stater for a ride one night that became a local legend. I'll try to tell it some time.

[BillyGman]

Originally Posted by GRN69CHV

But when you come down to it, guys used to use blowers to get into the 600 - 700 range for a street motor. Today, 600-700 NA is nothing. If you are going to go the expense and aggravation of a blower in stall, it should be worth the work. I'm talking 800HP minimum. Take any decent 496 motor, very hard to not hit the 600HP mark, why bother with a blower?

I think that for actual street driving, the only performance advantage is for small V8 engines that are fuel injected, when you choose one of those underhood Eaton 112 CID(1.7L) or 122 CID(2.2L) roots superchargers.

That's what I had for two years on my 4,400 LB daily driver, and even at that very heavy vehicle weight, along with 4.56 gears in the rear and with an O/D automatic transmission and a 3,000 RPM stall speed, I used to get 17 MPG on the highway and still turn 1.6 second 60' times and 12.0 ET's consistently with drag radials, and on pump gas. That little roots superchgarger provided me with a 140 HP increase, while at the same time, had a bypass valve (as all the Eaton's do) which prevented the engine from going into boost mode until you hit the half throttle position. And the power was always there on demand. No bottles to fill, no water/alcohol injection to worry about. And it was stealth.