Pulleys for 88 4+3? Questions?
Thread Starter
Race Director
Joined: May 2003
Posts: 10,749
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Pulleys for 88 4+3? Questions?
I have posted this topic before but have not gotten alot of responses or suggestions. I have noticed that March Pulleys has 2 different sets, One being Steel, One being Aluminum(both being recommended for auto trannys).
Wondering if they gains or what they claim(12-15 RWHP). And what one's to go with, and will I gain .10-.15 in the 1/4 mile with these!!
Looking to get a set, Is it worth it????
Wondering if they gains or what they claim(12-15 RWHP). And what one's to go with, and will I gain .10-.15 in the 1/4 mile with these!!
Looking to get a set, Is it worth it????
Thread Starter
Race Director
Joined: May 2003
Posts: 10,749
Likes: 41
Originally Posted by 88BlackZ-51
I have posted this topic before but have not gotten alot of responses or suggestions. I have noticed that March Pulleys has 2 different sets, One being Steel, One being Aluminum(both being recommended for auto trannys).
Wondering if they gains or what they claim(12-15 RWHP). And what one's to go with, and will I gain .10-.15 in the 1/4 mile with these!!
Looking to get a set, Is it worth it????
Wondering if they gains or what they claim(12-15 RWHP). And what one's to go with, and will I gain .10-.15 in the 1/4 mile with these!!
Looking to get a set, Is it worth it????
Anyone??
Racer
Joined: Mar 2004
Posts: 311
Likes: 0
From: Oakley Ca
I have just the small diameter crank pulley on my 85 and it is aluminum. I didn't notice any power difference that I could feel. The aluminum has held up well so far, of course my car has only 54K on the clock. A two pulley set that speeds up the alternator would seem to defeat the purpose of pulleys as it would take more power to spin the alt. I have had no problems keeping the battery up with tje small crank pulley. Thats just my opinion. Others may disagree.
Team Owner
Joined: May 2002
Posts: 24,337
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From: San Diego , CA Double Yellow DirtBags 1985..Z51..6-speed
Pulleys are for Mustang drivers with pimples.
Those HP claims are complete b.s. If they spin your alternator slower, it'll just be under load longer. You can't shortcut on the engine's electrical needs... it takes what it needs, no more, no less, no matter what pulleys you have on there. It'll spin your water pump slower = less cooling capacity. It'll spin your a/c slower, so it won't cool as well, (who the hell uses their a/c when they're trying to maximize power anyways)? It'll spin your power steering slower, but there isn't resistance on it if you're going in a straight line.
Unless you have a supercharger, pulleys are useless.
Those HP claims are complete b.s. If they spin your alternator slower, it'll just be under load longer. You can't shortcut on the engine's electrical needs... it takes what it needs, no more, no less, no matter what pulleys you have on there. It'll spin your water pump slower = less cooling capacity. It'll spin your a/c slower, so it won't cool as well, (who the hell uses their a/c when they're trying to maximize power anyways)? It'll spin your power steering slower, but there isn't resistance on it if you're going in a straight line.
Unless you have a supercharger, pulleys are useless.
Team Owner
Joined: Sep 2001
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From: Athens AL
C7 of the Year - Unmodified Finalist 2021
C4 of Year Finalist (performance mods) 2019
Track results do show about .1 gain from the underdrive pulleys on L98s.
I still wouldnt use them because I dont want the alternator spinning any slower.
I still wouldnt use them because I dont want the alternator spinning any slower.
