A friend of mine suggested Weiand for superchargers. Are they a good company?

I'm not sure which supercharger to get. I am buying it for a stock 396. There are so many, i'm not sure what is what. Any help?

i cant speak for all of weiand's blowers but my 177 c.i weiand is awesome....

Weiand Blowers are about middle of the road for blowers. Good bang for your buck.
There are better ones out there but they are not cheap. BDS, Littlefield, The Blower Shop, Dyers are some off the top of my head that are used a lot.

Here is some good info on superchargers:

http://www.blowerdriveservice.com/faq.php

i have a weiand 671 on a 396. but had heating issues due to dome pistons. i pulled it off and put a tunnel ram on. blower now sits in the game room. nice 2 look at while watching drag racing movies.

I like them!! Nothing like the sound of them when you go blasting WOT.

I plan on spending around $2k on it.

I found some Weiand blowers at the Summit web site, but there are so many packages that I am not sure what to get. Is there one that comes with everything I need to install it and have it work properly?

Wow, from this web site it seems like I would have to replace a lot of parts in the motor for it to run properly. Maybe I shouldn't mess with a blower.

The ones with the newer cases are OK, nothing wrong with them, but they are set up with much looser tolerances with more leakage past the rotors at low speed. Therefore you will have to overdrive it more to get the same boost compared to the same size 6-71 (411ci) from a higher end shop.

By the way.. I saw a billet case blower from The Blower Shop last week.. absolutely the most beautiful blower case on the planet.. a work of art.

Fwiw, if it is still being sold by Holley, the 250 and 256 blowers...

One of them is like 1.5" lower on the engine than the other if hood clearance is an issue..

AND I always forget which one it is???

pdq67

Hood clearance isn't an issue, it's cool if it sticks out. =D

However, now I am beginning to think that it's not worth getting, because of the other parts i'd need to make the car run reliably with the blower.

yes, if you have a stock engine it's likely that the compression ratio is too high. If it already has a hot rod cam it probably is not suitable for use with a blower or turbo. So, yeah, there's a bunch of work involved.

If you're willing to do work on your own car and have any skills you could turn it into a 496 for not much more money than that.

Okay, thanks.

Randall,
Go pick up the book called "Street Supercharging" by SA Designs. This is the advice I give all guys that are new to blown engines. There is a lot more to it than bolting on a blower kit. If you're going to spend the money you might as well spend it and make power.

For $2,000 you are not going to get a "full size" blower (meaning 6-71 or 8-71) you may be able to find a used baby blower and carb for that amount.

As far as Weiand blowers go, they are not junk but, there are better blowers out there. The Weiand are an off the shelf one size fits all blower. For a few hundred more you can get a "custom" blower from many of the top end builders (Hampton Blowers, Moonyham, Littlefield, Mike Kuhl, The Blower Shop, etc..). It really depends on what you're after. If you want the look and sound and decent power then the Weiand will do the job. If you want maximimun power then a custom blower is a better choice. In order to take advantage of the custom blowers you need to build an engine that can take advatange of the better piece. If you are going to slap it on a basically stock engine then a Weiand would be fine (IMO).

Lemonice,
Your blower did not cause your heating problems. You say that in every blower post. You did not do your reseach and built a big heat pump, that's not the blowers fault. If a guy buys a new hammer and hits his hand with it, is it the hammers fault or the guy swinging it at his own hand? Don't get me wrong I am not picking at you I just don't want to see mis-information passed around. If you are going to tell the story, tell the whole story.

Not sure how the dome pistons caused the heat issues (not because i'm an expect, but just because I don't know), but it looked like he blamed it on the pistons and not the blower to me???

****

DO IT!!!

TAKE the Plunge. Spend the coin and get a Blower.

Why wait until you retire?


DO IT!!!

I have a 142 blower on my 355. A 177 for a 396 is a definate plus. When you go with a 250/256 size you can either opt for single or dual carbs. These units are generally lower in profile than the 6 or 8-71's.

Even the small 177 will suprise you when you install it. Instant response and torque all the way across rpms till redline.:yes:

PDQ67,

Holley still sells the 250ci blower, they only discontinued the 420ci blower. I am a big fan of the mini-blowers and have run one myself in the past. The Holley 250 is a great size for a street SBC.

mike

Thanks Mike,

Is it the lower installed height one?

pdq67

Paul, the 250 is supposed to be 2" shorter in height than the 6-71's. You must use the short water pump/pullies with this blower.

Yes, it is fairly low with the short height intake, not quite as low as the 144, but much lower than a 6-71. It will make a solid 10 pounds of boost on a small block and the faster spinning rotors makes for more boost at low rpm. Looks good with the 2" gilmer belt too. It is not as tall as the Weiand 177 which has a tall intake. I like the way it looks in proportion to the engine. 6-71's kinda look as big as the engine sometimes.

http://www.holley.com/types/Small%20Block%20Chevrolet%20-%20250%20Series.asp

Thanks Tokyo,

I always forget which is shorter.

pdq67

Yes, it is fairly low with the short height intake, not quite as low as the 144, but much lower than a 6-71. It will make a solid 10 pounds of boost on a small block and the faster spinning rotors makes for more boost at low rpm. Looks good with the 2" gilmer belt too. It is not as tall as the Weiand 177 which has a tall intake. I like the way it looks in proportion to the engine. 6-71's kinda look as big as the engine sometimes.

http://www.holley.com/types/Small%20Block%20Chevrolet%20-%20250%20Series.asp


Are you saying the 250 is shorter than the 177
the 250 blowers can run a single carb. do they come with a one carb adapter plate or do you need to buy one extra??

i have to agree with Tom mobley.Most likely..the iron head 396 is north of 10/1 static cr with a not so friendly blower cam profile.I have a Weiand 8/71 sitting on my bench and can not install it on my 11.26/1 iron head 427.The effective CR would require alcohol.My plans are to stick with the .030 overbore and lay in a 4.250 arm with a 6.385 rod for 489 cid.
A dished blower specific piston and aluminum 120 cc open chambers with a dual pattern solid cam that favors the exhaust side by 10* and a 112 lsa.I can run the 8/71 with my pulleys 6 over or 6 under.Can we keep this thread running.The roots crowd is out there with a ton of advice.Camaroman..your thoughts.sorry if I hijacked.seems like this is pertinant to the original poster..Roots blowers on stock circa 60,s bbc with no internal mods.

Are you saying the 250 is shorter than the 177
the 250 blowers can run a single carb. do they come with a one carb adapter plate or do you need to buy one extra??

Yeah which is shorter? the 177 or the 250? would the 250 fit under a stock cowl hood?

If my memory serves me correctly, the 177 and the 250 have the same front and rear heights; you can validate at the holley site; they provide both front and rear height dimensions.

On a BB, neither the 177 and 250 will fit with a stock height cowl; I am running a 177 BB with a 4 inch glasstech hood.

-stu

i have a 4" cowl will a 250 fit uderneath it, I foud the cheapest place to buy one. $2207.99 :)

Randall,
Go pick up the book called "Street Supercharging" by SA Designs. This is the advice I give all guys that are new to blown engines. There is a lot more to it than bolting on a blower kit. If you're going to spend the money you might as well spend it and make power.

For $2,000 you are not going to get a "full size" blower (meaning 6-71 or 8-71) you may be able to find a used baby blower and carb for that amount.

As far as Weiand blowers go, they are not junk but, there are better blowers out there. The Weiand are an off the shelf one size fits all blower. For a few hundred more you can get a "custom" blower from many of the top end builders (Hampton Blowers, Moonyham, Littlefield, Mike Kuhl, The Blower Shop, etc..). It really depends on what you're after. If you want the look and sound and decent power then the Weiand will do the job. If you want maximimun power then a custom blower is a better choice. In order to take advantage of the custom blowers you need to build an engine that can take advatange of the better piece. If you are going to slap it on a basically stock engine then a Weiand would be fine (IMO).

Lemonice,
Your blower did not cause your heating problems. You say that in every blower post. You did not do your reseach and built a big heat pump, that's not the blowers fault. If a guy buys a new hammer and hits his hand with it, is it the hammers fault or the guy swinging it at his own hand? Don't get me wrong I am not picking at you I just don't want to see mis-information passed around. If you are going to tell the story, tell the whole story.

there is no way your gonna slap a 671 on a stock engine and it run fine . IMO , and mike kuhl is not in the blower bis anymore. once you get the blower ,carbs ,carb link, fuel lines for the carbs and some sort of carb filters you have a huge investment in all of that . the mis information is that guys think that if you buy the blower kit your done . not so . if you go that route then plan it out and build your engine for it as well as your cooling system . Im no expert call one of the blower shops and you will get a good idea what to expect . IMO Don Hampton is the guy you want to talk to he helped me out a lot .