flowmaster 4-2-1 ?
 

in the search for more low end from my under powered over weighted car, i am wondering about a set of flowmaster 4 into 2 into 1 collectors.
the original collectors are 8" x 2 3/4 ID. the flowmasters are;
effective length 22", 2" of 1 5/8", 11" of intermediate and 11 1/2" of 2 5/8".
my current RPM range is 5200-7000. cam is 240/250 @ 50
thoughts?
thanks rod

Re: flowmaster 4-2-1 ?
 

Tested the Flowmasters and found a little more low end torque and a HP loss on a 427 cu in BBC. The torque increase was way out of my operating range, so no gain for me.

Re: flowmaster 4-2-1 ?
 

I'll bet there are more of those collectors under benches or hanging on wall, than are still on cars! ....mine included. .......Tom

Re: flowmaster 4-2-1 ?
 

They worked on my 350 Buick and 400 Pontiac. Both long stroke, low RPM motors.

Re: flowmaster 4-2-1 ?
 

My thoughts are that your cam is likely too small for your operating range. And collectors won't help you much, if any.

Re: flowmaster 4-2-1 ?
 

I would like to try a set of 4-2-1 collectors on my stocker, anyone looking to sell a pair for 1 3/4 inch tube headers?

Re: flowmaster 4-2-1 ?
 

Dave,
I have a pair I made up for Kevin Cradduck's G/S 255/350 Camaro I drove in 2008. They're in Kevin's garage, they actually have a merge I built on them, and they were on a set of Stahl headers. I may be able to get you a picture of them. I can't even remember what I paid for the pieces.

Re: flowmaster 4-2-1 ?
 

Alan If you call me (800-448-7722 ext 120) I will give you my personel e-mail address!

Re: flowmaster 4-2-1 ?
 

Dave,
Sent you a private message. We'll work something out.

Re: flowmaster 4-2-1 ?
 

http://toronto.kijiji.ca/c-cars-vehi...AdIdZ180688060

Its in canada but I shipped a set of super comps very far and it was cheap. Hope this helps. I have flowmaster collectors and I love the sound they make. I have never tested them against anything else because this header/collector game for .05 sec gain isnt worth it for me. The collector has nothing to do with the christmas tree. :)