Should I upgrade?
 

I am considering upgrading from my B&M 142 Chargers to 6-71 or 8-71 mills. This is on my Big block motors producing just under 600HP right now. I will keep them single carbed with my Nickersons and will limit the HP output to not blow the outdrives. Anyone have any parts that they dont need or want to do some swapping? I will only do this if I decide to rebuild the motors this winter. If not it will be in the works for next winter. Drives are TRS with modded B/W trannies.

Steven

Re: Should I upgrade?
 

Biggest you can go with a single carb is a 250.

Re: Should I upgrade?
 

let me know if you wanna sell your actual blower. Can I change the intake attachment to fit it on a BB ford?
Josh

Re: Should I upgrade?
 

Griff,

can you give me a little more info on the carb requirements for the larger blowers? i have seen many running singles on 6 and 8-71 blowers. I wil not be producing mad horsepower at the moment because of my drives but want the option if I ever move the power to a different boat or go with Konrad replacements a few years down the road.

Re: Should I upgrade?
 

singles on 6-871s, we run 2 1050s on my 557s

Re: Should I upgrade?
 

I am new to supercharging. Thats why I asked. If I was turning it at a high ratio or high RPMs I would not want singles. My Nickersons are 850CFM.

Re: Should I upgrade?
 

A little more info. I am running 454 blocks. Goal is around 5000 peak RPM with 4-6lbs of boost. A little research with these parameters stated that 900CFM would be the requirement.

Re: Should I upgrade?
 

What ci are you running with those 142's???? Those are tiny for a BB. A 174 is pretty much maxed out on a 454, although I've seen a few on 502's.

You will have fuel distribution problems with a single carb on anything bigger than a 250. I have never even seen a single carb plate for anything bigger than 250 and did not even know they made them.

Re: Should I upgrade?
 

They are B&M Mills. I thought they were 177 but I was told that b&M did not make a 177. I am a bit puzzled by this as i too think that that would be small for the motors.. You can buy a Weiand top for 6-71 and 8-71 with a single carb pattern for holley square bore or Dominator. Whish I knew more about supercharging, I am just starting to research it.

http://store.summitracing.com/partde...5&autoview=sku

Re: Should I upgrade?
 

They are prob 174's
Any pics?

Re: Should I upgrade?
 

Re: Should I upgrade?
 

They look like 174's.
I have the same blowers.

Re: Should I upgrade?
 

Thanks for the reply. Maybe I should just keep hem for now. I seem to always get that Tim Allen bug wanting to make it bigger badder faster...I need a shrink...

Re: Should I upgrade?
 

I think they are great blowers. If your looking for over 600hp you may want larger.
I plan on intercooling mine this winter and running a bit more boost.
Going to put on dyno and see what we get!

Re: Should I upgrade?
 

They are 174's.

How much boost are you running????? You may be able to try a smaller top pulley or innercool them.

Re: Should I upgrade?
 

here is a pic of my motors, they have kuhl bros. single 1050 dominators on 514's making 8lbs of boost. another combo with a single 1050 on 540's made over 750 hp.

Re: Should I upgrade?
 

I am running 5lbs of boost around 4800RPM. Running just shy of 600HP each. I was thinking of the options to cool the intake charge and would rather slow down the blower before I intercool. I would love to do both but budget just wont allow that yet.