if i just install the lower crank pulley will i notice a difference in performance and a change in alt charging?

 

I was under the impression that the stock dampener was pressed onto the stock pulley. There is no place for the dampener to go onto the pulley with the march pulleys.

if you could tell me exactly how you put the dampener on, it would help.

 

yes and yes,,,, sum more TQ but at a red lights the head lights may din


CPTAFW163

talon6 put a under drive pully on his 5.9 and didnt say anything about having problems

 

i know my truck as the 136 amp alt so will that make a difference?

 

on a stock truck, it will not drain anything.

Now, if you have a MSD ignition BOX, twin electric fans, amped sound system...you might be running a bit low.

I had one on my 86 Camaro, pretty much everyone with a 5.0 mustang has an underdrive crank pulley.

Crank pulleys are a good addition to a motor when all you want to do is bolt ons. They really add to the power gain if you have already done some mods:

1.7s, headers, fuel, ignition.....

I am doing my crank pulley only because I got a deal on the pulley set (85 bucks for crank/alt/water pump). Otherwise I would have waited until I got new heads.

I would rather do the crank pulley than the electric fans. Just because the clutch fan is more reliable and pulls a lot of air. And it is much less expensive.

 

Here is a good read:
http://www.bionicdodge.com/bionic/in...p?topic=1953.0

Upgraded headlights, electric fan...doesn't work well with the larger alternator pulley (larger comes with the kit).

Here is what the Southeast Custom guy did:
http://www.bionicdodge.com/bionic/in...p?topic=9702.0

Just get the crank and don;t underdrive the alt pulley.

 

Yep -- the alternator won't make anywhere near enough output at idle. It's better to get the smaller alternator pulley to match the crank pulley so the alternator speed at idle doesn't change.