Crank vs Blower pully

[burt ragio]

The Marauder has a stock 7.5" crank pully. If the roots style blower has a 2.93" pully would my guess on boost be 8psi ? The larger the pully at the crank the more boost. The smaller the pully on the blower the more boost. What would the boost numbers be if I kept the stock crank pully & just changed the blower pully larger or smaller ?

[ImpalaSlayer]

umm you cant attach the blower belt to the stock crank pulley

[burt ragio]

So I have to spend apx $200.00 plus & change the crank pully ? No way around that ? Ok, I can get a LFG pully kit stock size or 2lb,4lb ect. I want to shoot for max 10 psi. With a 2.93 at the blower what size crank pully should I get?

[ImpalaSlayer]

So I have to spend apx $200.00 plus & change the crank pully ? No way around that ? Ok, I can get a LFG pully kit stock size or 2lb,4lb ect. I want to shoot for max 10 psi. With a 2.93 at the blower what size crank pully should I get?
will never happen, smallest you can get will be a 2lb and you will make about 16psi

[swordfish]

The best price I've seen on the LPG pulley kit is 319.00. I've been doing some research on it.

[Speed]

So I have to spend apx $200.00 plus & change the crank pully ? No way around that ? Ok, I can get a LFG pully kit stock size or 2lb,4lb ect. I want to shoot for max 10 psi. With a 2.93 at the blower what size crank pully should I get?

Check with bob6364, he may have what you need. I know when I ordered from LFP I had to wait a bit.

[ImpalaSlayer]

bert, to make about 10psi you will need a stock e4aton pulley and a +2 lower

[bob6364]

in a few days i will have a used lfp kit for 225.00

[ImpalaSlayer]

in a few days i will have a used lfp kit for 225.00

well there ya go, problem solved

[tjl006]

Look on corral, modular fords and svt performance for used one piece lower got a 2lb and 4lb for 35 and 45 dollars. Both metco

[DTUB]

Check out Metco's web site they offer +2lb. 8.00", Stock diameter crank pulley 7.40", Underdrive crank pulley 6.55". They told me every crank pulley change is worth about +or- 2lb. and every blower pulley about 1lb. I'm going with 2.9 and 7.4, I hope it's not to much..

[burt ragio]

in a few days i will have a used lfp kit for 225.00

pm sent. If it is a complete kit I will take it.

[65DOHCStang]

I bought a Metco Lightning pulley (stock diameter, 7.4") from Never Enough for $222 shipped. Same price for +2, +4, +6 etc.

[ImpalaSlayer]

I bought a Metco Lightning pulley (stock diameter, 7.4") from Never Enough for $222 shipped. Same price for +2, +4, +6 etc.

damn, i didnt even thing to look there, nor did i know they made a stock size.

[burt ragio]

In conversation with Metco they just made Marauder lower stock crank pulley size available new production.

[ImpalaSlayer]

In conversation with Metco they just made Marauder lower stock crank pulley size available new production.

that is probably for the trilogy kit and wouldnt work with the eaton. just a guess though

[DOOM]

Im about to do 2.8 blower & 4# cobra crank pullies.
This combo should give me about 18#'s of boost! :burnout:
Currently im using only a 3.0 blower pulley and making 13#'s of boost.