Do pullies help more with top end or low end
Re: Do pullies help more with top end or low end It should help all-around.
If you want to split hairs on the subject, it may benefit you slightly more up top because friction and loads on the auxiliaries will be greater at higher RPM.
If you want to split hairs on the subject, it may benefit you slightly more up top because friction and loads on the auxiliaries will be greater at higher RPM.
Staging Lane
Joined: Mar 2002
Posts: 79
Likes: 0
From: Chicago
Re: Do pullies help more with top end or low end SOTP, I can really feel mine in the mid-range. Half throttle at 40 mph doesn't feel as sluggish as it used to.
I picked up 12rwhp and 20 rwtq with mine. These numbers are not exact however, because on my previous dyno before the pulley, I had my tires at 25psi, this run they were at 40psi, so my gains from the pulley are most likely lower than 12/20.
I picked up 12rwhp and 20 rwtq with mine. These numbers are not exact however, because on my previous dyno before the pulley, I had my tires at 25psi, this run they were at 40psi, so my gains from the pulley are most likely lower than 12/20.
TECH Senior Member
Joined: Nov 2001
Posts: 9,246
Likes: 3
From: Troy, AL
Re: Do pullies help more with top end or low end </font><blockquote><font size="1" face="Verdana, Helvetica, sans-serif">quote:</font><hr /><font size="2" face="Verdana, Helvetica, sans-serif">Originally posted by NoGo:
<strong>It should help all-around.
If you want to split hairs on the subject, it may benefit you slightly more up top because friction and loads on the auxiliaries will be greater at higher RPM.</strong></font><hr /></blockquote><font size="2" face="Verdana, Helvetica, sans-serif">I agree, they help everywhere but more the higher rpm you are turning. It's not only the laws of friction but the laws of inertia that make this so. Also, pulleys will help you more the higher numerical ratio rearend you're running. Why? Because you are trying to accelerate the accessories faster with 4.10s than with 3.23s plus you're turning them more times over the course of the 1/4. You stand more to gain from slowing them down. Again, friction and inertia.
<strong>It should help all-around.
If you want to split hairs on the subject, it may benefit you slightly more up top because friction and loads on the auxiliaries will be greater at higher RPM.</strong></font><hr /></blockquote><font size="2" face="Verdana, Helvetica, sans-serif">I agree, they help everywhere but more the higher rpm you are turning. It's not only the laws of friction but the laws of inertia that make this so. Also, pulleys will help you more the higher numerical ratio rearend you're running. Why? Because you are trying to accelerate the accessories faster with 4.10s than with 3.23s plus you're turning them more times over the course of the 1/4. You stand more to gain from slowing them down. Again, friction and inertia.
