Do I have a Metco or LFP lower crank pulley kit?

Bdubbs said:

Mainly just belt dust. Otherwise, it works pretty good. But maybe I won't have to run everything pretty tight either.

Some say running a lower generates a little more torque? I wonder how much truth there is on that?Lower crank pulley?

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c6zhombre said:

I see, ya dust buildup sucks, especially that fast of an accumulation. Of course, belt slip and losing target boost sucks even more.

I have read that for years on here that a lower combo "hits harder" ..... "makes more TQ". I don't know for sure, I know both of my terminators had stock caged lowers and made target boost with small uppers...both those cars had immense low end off idle, excellent peak TQ, and shredded rear tires with ease. I think boost is boost.....as long as you eliminate slip and have a tuner that knows exactly what they're doing.

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01yellercobra said:

IMO the extra torque is the owner justifying spending $400 for a lower instead of $100 on a blower pulley. Don't take this as hate because I ran an overdrive crank pulley on my centri set up and I have a 4lb sitting on the shelf waiting to go on. 22psi is 22psi no matter how you reach it. The blower doesn't know what pulley set up is driving it.

I also think people tend to leave out other changes with said lower pulley change. I remember one guy saying his lower made more torque than his buddies upper only. I don't remember the blowers. But then it came to light he was making more boost, had long tubes while his buddy had stock logs, etc. I don't think there's ever been a real apples to apple comparison.

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GodStang said:

For me it's about either running a tiny ass upper pulley and stock lower that if you blip the throttle the belt will slip....

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