Underdrive Pulley
#1
Underdrive Pulley
What exactly does this do? People are telling me to get one, and theyre only 189 on custommaxim.com, so i was thinking if theyre cheap and give good gains, i might look into it. But i wanna know what it does first haha.
#2
Originally Posted by MaxGR97
What exactly does this do? People are telling me to get one, and theyre only 189 on custommaxim.com, so i was thinking if theyre cheap and give good gains, i might look into it. But i wanna know what it does first haha.
It makes the engine have an easier load = It makes you car faster. I want to get one of these in another month or 2.
Tough install compared to other mods though.
#5
Originally Posted by mzmtg
That $189 would be better spent on a Y-pipe if you dont already have one.
I'd say that step 2 has things like body kits / CF hood / pulley
Directly from custommaxima.com
Power Gains
Unorthodox Racing pulleys can provide gains of 5 to 12 HP and 4 to 8 ft.-lbs. on normally aspirated engines and 8 to 16 HP and 18 ft.-lbs. on forced induction engines. These are average gains. Gains as high as 37 HP and 45 ft.-lbs. have been realized on modified forced induction engines. These gains are obtained in two ways.
First, and most important, is the weight lose. An average of 2.7 HP is gained from every pound lost off the crank shaft. 85% of the gains are from weight loss. The rest of the gains are from underdriving which accounts for about 15% of the total gains.
I think a person should know, and understand how their mods work.
#8
Originally Posted by broaner22
Its a very tough install. I've been working on getting my PS belt on for over a week.
Changing both belts only took me about an hour....while drinking beer and shooting the **** with my friend.
#9
i have an UR UPD i may be selling soon.. if my expenses for fixing my front end get too big..
i bought it used.. less than 10k on it.. looks to be in great shape..i havnt had time to put it in
i bought it used.. less than 10k on it.. looks to be in great shape..i havnt had time to put it in
#15
I'd prbly wait for a GD. However, guys you gotta understand that it does increase power. Sometimes you buy little things such as this or a straight pipe.. in which it will give you the advantage of everyone else on the .org... (Supposing that your race)
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