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Old 11-28-2003, 01:44 PM
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supercharger....

im looking at getting a supercharger for my monte carlo, its can smoke most car out on the road now, but i want to be able to just half *** it and kill them, so i was thing about getting a supercharger, how much horsepower do you think i could gain.

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Old 11-28-2003, 05:03 PM
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You can't just get a suupercharger or most people call them a blower. You need a strong bottom end, blower cam, high flowing heads, low compression Forged Blower pistons. the list goes on and on and a guy who has a Blown motor couls tell you everything. At the cheapest it would cost 3K to build a blower motor and that's with used parts. Look foward to spending 5-8K$$ building an engine like this. It would be and cheaper to build a carbureted motor.
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Old 11-28-2003, 08:00 PM
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Re: supercharger....

Quote:
Originally posted by 73monte
im looking at getting a supercharger for my monte carlo, its can smoke most car out on the road now, but i want to be able to just half *** it and kill them, so i was thing about getting a supercharger, how much horsepower do you think i could gain.
You are so young and you have so much to learn. Anything you modify to more output you must follow a proven formula or let a pro do it for you. Next question will daddy pay for it.
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Old 11-28-2003, 08:25 PM
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How to Post on the Hotrodders Bulletin Board

There's a few simple things you should know before you ask your first question on the Hotrodders Bulletin Board.

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quote:
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Title: NEED HELP!

NEED HELP ENGIN NOT WORKING CANT START IN COLD WEATHER TOO COLD 350/350 HOLLEY 850. WHAT DO I DO NEED ANSWER IMMEDIATELY!! EMAIL CAR5425DUDE @HOTMAIL.COM.

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User 2 also can't get his engine to start in cold weather. He posted the following:


quote:
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Title: Engine won't start below 40 degrees

Hi guys -- new member here. I'm having a problem getting my engine to start when the temperature is below 40 degrees. I've searched through the old posts and the Knowledge Base, and I've done such-and-such as was recommended, but it still won't work.

Here's exactly what happens when I try to start it...(followed by a DETAILED listing of the problem).

Here's my setup...(followed by a detailed listing of all parts that might be relevant to this problem).

What's the next step for me to take to troubleshoot this problem?

Thanks in advance.

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Which user would you answer?


User 2 started off with a descriptive title for his post. Then, he demonstrated that he had already searched for an answer. He gave a detailed description of his problem, and a detailed description of all relevant parts. He described the steps he had already taken. Then, he asked an outright question -- "What's the next step for me to take to troubleshoot this problem?". And he was polite. He'll probably get plenty of answers to his question, and plenty of people willing to help him out.

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Same problem, same question. Asked two different ways.



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"How do I make flames come out of my exhaust?"
This has been asked numerous times before. If you don't know the answer, you aren't using the board search.


"Will 302 heads fit on a 350?"
See #1.


"Should I get a Holley or Edelbrock carb?"
See #2.


"Howdy, I got a 350 chevy 4 bolt main. It is in a chevy car with a chevy transmission. It has an intake. How much do you guys think horsepower I am making and torque power abilities at the peakness PRM's?"
You are making 500 horsepower with the intake turned on, and 600 horsepower with the ashtray in the upright position. Your RPM torque should reach peakness at 65 or 75, depending on the barometric temperature, and whether it's a Chevy or a GM.

Any answer you receive to the above question will be as useless as the answer we've just given. There is no magic dyno here. If you have solid numbers, cam specs, or other data, ask around and someone will run your figures through Desktop Dyno or some other similar program to give you an approximate horsepower and/or torque reading.




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Old 11-28-2003, 09:36 PM
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no my dad doesnt pay for anything on my car! i have put all $6000 in it and im still going. so just wait!
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Old 11-28-2003, 11:44 PM
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FIRST YOU NEED TO BRING YOUR COMPRESSION DOWN TO 8 :1 AND GET A NITROUS HP CAM FROM COMP CAM AND IF YOU HAVE AN AUTOMATIC YOU WILL NEED A CONVERTER TO HANDLE THE TORQUE FROM A BLOWER AND DEPENDING ON THE BOOST YOU WILL BE RUNNING I WOULD SAY NO MORE THAN TEN YOU SHOULD SEE 40% TO 65% GAIN IN HP.

ITS ME AGAIN JUST TO LET YOU KNOW IF YOU DONT BUILD IT RIGHT THE FIST TIME LET ME TELL YOU WHAT HAPPEND TO MY 64 FIRST IT FUSED THE CLUTCHES IN MY TRANNY ABOUT 4 MONTHS AGO AND 2 MONTHS AGO IT PUT A HOLE THE SIZE OF A SILVER DOLLAR IN ONE OF MY PISTONS BUT OF COURSE THE ITEMS THAT IAM TALKING ABOUT WERE BASICLY STOCK BUT I KNEW THEY WERE GOING TO GO NOW WHEN I GET THE ENGINE BACK I EXPECT THE REAR END IS NEXT BUT I THINK I WILL BE OK AS LONG AS I DONT PUT SLICKS ON IT AND JUST KEEP SPINNING THE TIRES THROUGH FIRST AND SECOND IN AN AUTOMATIC WITH 3:08 IN THE REAR.

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Old 01-21-2006, 02:35 PM
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There is a fairly simple answer to your inquiry.
B&M (Now Holley-Weiand) builds a belt driven mini supercharger that will fit under most GM hoods. It was designed to add 100 horsepower to a stock 350 engine, although real world results seem to be in the 40-60% increase.
Anyway you look at it, these mini blowers make cheap horsepower. Depending upon the compression that your engine has, you adjust the amount of boost by changing pulleys.
My blower came with pulleys to make 3 pounds boost. I have built a blower motor with forged blower pistons, good rods and rod bolts, a blower cam shaft, and a good hot ignition and aluminum heads. Because of the parts that I am using, I have bumped the boost up around 10 pounds, and Dyno 2000 says that I am making over 530 horses and 460 ft/lbs.
Well, I don't race dynos, but it does go like stink. ( I accidentally shut down a pal's 11 second Corvette).

There have been a bunch of small block chevy blowers on Ebay this month...Many went for under $800, most went for under $1300. The mini blower gives a quick and hefty horsepower/torque boost to mild engines.

People will tell you about the need for forged pistons, big rods, beefy bottom ends, etc. but the truth is that the small blowers were designed specifically for stock engines, and if you keep the RPM at a reasonable limit, there is no reason why the engine wouldn't perform as designed.

If you can change an intake manifold, you can install one of these mini blowers. The hardest part is the throttle linkage and on a cable type, it is not an issue.
For more info, go to www.Holley.com and click on superchargers or weiand then superchargers.
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Old 01-21-2006, 04:24 PM
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Im by far no expert. But if you click on my project journal, you can see my progress with my 6-71 Weiand blown 355ci sbc motor. Hg
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Old 01-21-2006, 07:01 PM
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Thumbs down

DUH this is over 2 years old.
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Old 07-31-2006, 08:44 PM
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Blow me down!!

I was a custom engine builder in So. Cal. in the 80's and can offer you this ...... If you already HAVE a solid engine, with cast OR forged pistons, you can set up a SMALL huffer on it and make it create NO MORE than 10 pounds of boost and expect it to gain about 125 hp right out of the box. If you push any more than 10 pounds through a bone stock engine, you're sitting on a hand grenade, looking for a place to go off!!! Like Louis Unser taught me in '85 - it's ALWAYS better to huff and engine with low compression and allow the blower to create the horsepowr, than it is to 'blow' a high compression engine and not be able to use all of the boost that the blower is capable of creating. PS: DON'T FORGET TO RE-JET THAT CARBURETOR!!!!!
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Old 07-31-2006, 10:38 PM
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Hey, guess what? This thread is insanely old I seriously doubt this guy said he put a supercharger on there People say alot of things but never really do it. I wanted to run a blower on mine but realized how much it would set me back just for the blower kit and that huge pricetag didn't include upgrading the rear, improving my traction, not including carbs, etc etc etccc.
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Old 04-15-2010, 01:29 PM
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stock 350?

There have been a bunch of small block chevy blowers on Ebay this month...Many went for under $800, most went for under $1300. The mini blower gives a quick and hefty horsepower/torque boost to mild engines.

People will tell you about the need for forged pistons, big rods, beefy bottom ends, etc. but the truth is that the small blowers were designed specifically for stock engines, and if you keep the RPM at a reasonable limit, there is no reason why the engine wouldn't perform as designed.



could you honestly just put on a new supercharger on a stock 350?
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Old 04-15-2010, 01:56 PM
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Despite the fact that this thread is now 7 years old I will answer your question for you.

Yes. As mentioned earlier, the smaller superchargers available (specifically the 142/144s) will work just fine on a stock engine and still give you a large horsepower increase, as long as you keep the boost reasonable.
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Old 04-15-2010, 08:06 PM
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Yep, you can. In addition to what Blazin72 said, you must also lower the total ignition timing and control it according to the boost you use and make certain that you never go lean on the fuel air mixture.

In addition, you must realize that the motor is taking in more fuel air mixture because it thinks it is a bigger motor, so at some point you have to increase the CFM capability of the carburetor. There is a formula to determine the carb you need for a certain engine size, engine speed and blower boost.
{(CID x RPM) / 3456} x {(BOOST / 14.7) +1}
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Old 04-15-2010, 09:46 PM
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Speaking of supercharging stock engines, the set up below is a Turbosonic sold by Accel (among others) back in the 70's. The one shown was posted by a member here, upstand2. He has one like it and says it's "peppy". They show up on eBay for a couple hundred on up to several hundred more if all there, etc.



One on a SBF:

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